web/lib/Zend/Service/WindowsAzure/Management/Client.php
changeset 808 6b6c2214f778
child 1230 68c69c656a2c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Service/WindowsAzure/Management/Client.php	Thu Mar 21 19:52:38 2013 +0100
@@ -0,0 +1,2423 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Service_WindowsAzure
+ * @subpackage Management
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_OperationStatusInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/OperationStatusInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_SubscriptionOperationInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/SubscriptionOperationInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_DeploymentInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/DeploymentInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Storage_Blob
+ */
+require_once 'Zend/Service/WindowsAzure/Storage/Blob.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Storage_Table
+ */
+require_once 'Zend/Service/WindowsAzure/Storage/Table.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_HostedServiceInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/HostedServiceInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_CertificateInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/CertificateInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_AffinityGroupInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/AffinityGroupInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_LocationInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/LocationInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_OperatingSystemInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/OperatingSystemInstance.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Management_OperatingSystemFamilyInstance
+ */
+require_once 'Zend/Service/WindowsAzure/Management/OperatingSystemFamilyInstance.php';
+
+/**
+ * @category   Zend
+ * @package    Zend_Service_WindowsAzure
+ * @subpackage Management
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Service_WindowsAzure_Management_Client
+{
+	/**
+	 * Management service URL
+	 */
+	const URL_MANAGEMENT        = "https://management.core.windows.net";
+	
+	/**
+	 * Operations
+	 */
+	const OP_OPERATIONS                = "operations";
+	const OP_STORAGE_ACCOUNTS          = "services/storageservices";
+	const OP_HOSTED_SERVICES           = "services/hostedservices";
+	const OP_AFFINITYGROUPS            = "affinitygroups";
+	const OP_LOCATIONS                 = "locations";
+	const OP_OPERATINGSYSTEMS          = "operatingsystems";
+	const OP_OPERATINGSYSTEMFAMILIES   = "operatingsystemfamilies";
+
+	/**
+	 * Current API version
+	 * 
+	 * @var string
+	 */
+	protected $_apiVersion = '2011-02-25';
+	
+	/**
+	 * Subscription ID
+	 *
+	 * @var string
+	 */
+	protected $_subscriptionId = '';
+	
+	/**
+	 * Management certificate path (.PEM)
+	 *
+	 * @var string
+	 */
+	protected $_certificatePath = '';
+	
+	/**
+	 * Management certificate passphrase
+	 *
+	 * @var string
+	 */
+	protected $_certificatePassphrase = '';
+	
+	/**
+	 * Zend_Http_Client channel used for communication with REST services
+	 * 
+	 * @var Zend_Http_Client
+	 */
+	protected $_httpClientChannel = null;	
+
+	/**
+	 * Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract instance
+	 * 
+	 * @var Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract
+	 */
+	protected $_retryPolicy = null;
+	
+	/**
+	 * Returns the last request ID
+	 * 
+	 * @var string
+	 */
+	protected $_lastRequestId = null;
+	
+	/**
+	 * Creates a new Zend_Service_WindowsAzure_Management instance
+	 * 
+	 * @param string $subscriptionId Subscription ID
+	 * @param string $certificatePath Management certificate path (.PEM)
+	 * @param string $certificatePassphrase Management certificate passphrase
+     * @param Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy Retry policy to use when making requests
+	 */
+	public function __construct(
+		$subscriptionId,
+		$certificatePath,
+		$certificatePassphrase,
+		Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy = null
+	) {
+		$this->_subscriptionId = $subscriptionId;
+		$this->_certificatePath = $certificatePath;
+		$this->_certificatePassphrase = $certificatePassphrase;
+		
+		$this->_retryPolicy = $retryPolicy;
+		if (is_null($this->_retryPolicy)) {
+		    $this->_retryPolicy = Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract::noRetry();
+		}
+		
+		// Setup default Zend_Http_Client channel
+		$options = array(
+		    'adapter'       => 'Zend_Http_Client_Adapter_Socket',
+		    'ssltransport'  => 'ssl',
+			'sslcert'       => $this->_certificatePath,
+			'sslpassphrase' => $this->_certificatePassphrase,
+			'sslusecontext' => true,
+		);
+		if (function_exists('curl_init')) {
+			// Set cURL options if cURL is used afterwards
+			$options['curloptions'] = array(
+					CURLOPT_FOLLOWLOCATION => true,
+					CURLOPT_TIMEOUT => 120,
+			);
+		}
+		$this->_httpClientChannel = new Zend_Http_Client(null, $options);
+	}
+	
+	/**
+	 * Set the HTTP client channel to use
+	 * 
+	 * @param Zend_Http_Client_Adapter_Interface|string $adapterInstance Adapter instance or adapter class name.
+	 */
+	public function setHttpClientChannel($adapterInstance = 'Zend_Http_Client_Adapter_Socket')
+	{
+		$this->_httpClientChannel->setAdapter($adapterInstance);
+	}
+	
+    /**
+     * Retrieve HTTP client channel
+     * 
+     * @return Zend_Http_Client_Adapter_Interface
+     */
+    public function getHttpClientChannel()
+    {
+        return $this->_httpClientChannel;
+    }
+	
+	/**
+	 * Returns the Windows Azure subscription ID
+	 * 
+	 * @return string
+	 */
+	public function getSubscriptionId()
+	{
+		return $this->_subscriptionId;
+	}
+	
+	/**
+	 * Returns the last request ID.
+	 * 
+	 * @return string
+	 */
+	public function getLastRequestId()
+	{
+		return $this->_lastRequestId;
+	}
+	
+	/**
+	 * Get base URL for creating requests
+	 *
+	 * @return string
+	 */
+	public function getBaseUrl()
+	{
+		return self::URL_MANAGEMENT . '/' . $this->_subscriptionId;
+	}
+	
+	/**
+	 * Perform request using Zend_Http_Client channel
+	 *
+	 * @param string $path Path
+	 * @param string $queryString Query string
+	 * @param string $httpVerb HTTP verb the request will use
+	 * @param array $headers x-ms headers to add
+	 * @param mixed $rawData Optional RAW HTTP data to be sent over the wire
+	 * @return Zend_Http_Response
+	 */
+	protected function _performRequest(
+		$path = '/',
+		$queryString = '',
+		$httpVerb = Zend_Http_Client::GET,
+		$headers = array(),
+		$rawData = null
+	) {
+	    // Clean path
+		if (strpos($path, '/') !== 0) {
+			$path = '/' . $path;
+		}
+			
+		// Clean headers
+		if (is_null($headers)) {
+		    $headers = array();
+		}
+		
+		// Ensure cUrl will also work correctly:
+		//  - disable Content-Type if required
+		//  - disable Expect: 100 Continue
+		if (!isset($headers["Content-Type"])) {
+			$headers["Content-Type"] = '';
+		}
+		//$headers["Expect"] = '';
+
+		// Add version header
+		$headers['x-ms-version'] = $this->_apiVersion;
+		    
+		// URL encoding
+		$path           = self::urlencode($path);
+		$queryString    = self::urlencode($queryString);
+
+		// Generate URL and sign request
+		$requestUrl     = $this->getBaseUrl() . $path . $queryString;
+		$requestHeaders = $headers;
+
+		// Prepare request 
+		$this->_httpClientChannel->resetParameters(true);
+		$this->_httpClientChannel->setUri($requestUrl);
+		$this->_httpClientChannel->setHeaders($requestHeaders);
+		$this->_httpClientChannel->setRawData($rawData);
+
+		// Execute request
+		$response = $this->_retryPolicy->execute(
+		    array($this->_httpClientChannel, 'request'),
+		    array($httpVerb)
+		);
+		
+		// Store request id
+		$this->_lastRequestId = $response->getHeader('x-ms-request-id');
+		
+		return $response;
+	}
+	
+	/** 
+	 * Parse result from Zend_Http_Response
+	 *
+	 * @param Zend_Http_Response $response Response from HTTP call
+	 * @return object
+	 * @throws Zend_Service_WindowsAzure_Exception
+	 */
+	protected function _parseResponse(Zend_Http_Response $response = null)
+	{
+		if (is_null($response)) {
+			require_once 'Zend/Service/WindowsAzure/Exception.php';
+			throw new Zend_Service_WindowsAzure_Exception('Response should not be null.');
+		}
+		
+        $xml = @simplexml_load_string($response->getBody());
+        
+        if ($xml !== false) {
+            // Fetch all namespaces 
+            $namespaces = array_merge($xml->getNamespaces(true), $xml->getDocNamespaces(true)); 
+            
+            // Register all namespace prefixes
+            foreach ($namespaces as $prefix => $ns) { 
+                if ($prefix != '') {
+                    $xml->registerXPathNamespace($prefix, $ns);
+                } 
+            } 
+        }
+        
+        return $xml;
+	}
+	
+	/**
+	 * URL encode function
+	 * 
+	 * @param  string $value Value to encode
+	 * @return string        Encoded value
+	 */
+	public static function urlencode($value)
+	{
+	    return str_replace(' ', '%20', $value);
+	}
+	
+    /**
+     * Builds a query string from an array of elements
+     * 
+     * @param array     Array of elements
+     * @return string   Assembled query string
+     */
+    public static function createQueryStringFromArray($queryString)
+    {
+    	return count($queryString) > 0 ? '?' . implode('&', $queryString) : '';
+    }
+    
+	/**
+	 * Get error message from Zend_Http_Response
+	 *
+	 * @param Zend_Http_Response $response Repsonse
+	 * @param string $alternativeError Alternative error message
+	 * @return string
+	 */
+	protected function _getErrorMessage(Zend_Http_Response $response, $alternativeError = 'Unknown error.')
+	{
+		$response = $this->_parseResponse($response);
+		if ($response && $response->Message) {
+			return (string)$response->Message;
+		} else {
+			return $alternativeError;
+		}
+	}
+    
+    /**
+     * The Get Operation Status operation returns the status of the specified operation.
+     * After calling an asynchronous operation, you can call Get Operation Status to
+     * determine whether the operation has succeed, failed, or is still in progress.
+     *
+     * @param string $requestId The request ID. If omitted, the last request ID will be used.
+     * @return Zend_Service_WindowsAzure_Management_OperationStatusInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getOperationStatus($requestId = '')
+    {
+    	if ($requestId == '') {
+    		$requestId = $this->getLastRequestId();
+    	}
+    	
+    	$response = $this->_performRequest(self::OP_OPERATIONS . '/' . $requestId);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+
+			if (!is_null($result)) {
+				return new Zend_Service_WindowsAzure_Management_OperationStatusInstance(
+					(string)$result->ID,
+					(string)$result->Status,
+					($result->Error ? (string)$result->Error->Code : ''),
+					($result->Error ? (string)$result->Error->Message : '')
+				);
+			}
+			return null;
+		} else {
+			require_once 'Zend/Service/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+
+    
+    /**
+     * The List Subscription Operations operation returns a list of create, update,
+     * and delete operations that were performed on a subscription during the specified timeframe.
+     * Documentation on the parameters can be found at http://msdn.microsoft.com/en-us/library/gg715318.aspx.
+     *
+     * @param string $startTime The start of the timeframe to begin listing subscription operations in UTC format. This parameter and the $endTime parameter indicate the timeframe to retrieve subscription operations. This parameter cannot indicate a start date of more than 90 days in the past.
+     * @param string $endTime The end of the timeframe to begin listing subscription operations in UTC format. This parameter and the $startTime parameter indicate the timeframe to retrieve subscription operations. 
+     * @param string $objectIdFilter Returns subscription operations only for the specified object type and object ID. 
+     * @param string $operationResultFilter Returns subscription operations only for the specified result status, either Succeeded, Failed, or InProgress.
+     * @param string $continuationToken Internal usage.
+     * @return array Array of Zend_Service_WindowsAzure_Management_SubscriptionOperationInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listSubscriptionOperations($startTime, $endTime, $objectIdFilter = null, $operationResultFilter = null, $continuationToken = null)
+    {
+    	if ($startTime == '' || is_null($startTime)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Start time should be specified.');
+    	}
+    	if ($endTime == '' || is_null($endTime)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('End time should be specified.');
+    	}
+    	if ($operationResultFilter != '' && !is_null($operationResultFilter)) {
+	        $operationResultFilter = strtolower($operationResultFilter);
+	    	if ($operationResultFilter != 'succeeded' && $operationResultFilter != 'failed' && $operationResultFilter != 'inprogress') {
+				require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+	    		throw new Zend_Service_WindowsAzure_Management_Exception('OperationResultFilter should be succeeded|failed|inprogress.');
+	    	}
+    	}
+    	
+    	$parameters = array();
+    	$parameters[] = 'StartTime=' . $startTime;
+    	$parameters[] = 'EndTime=' . $endTime;
+    	if ($objectIdFilter != '' && !is_null($objectIdFilter)) {
+    		$parameters[] = 'ObjectIdFilter=' . $objectIdFilter;
+    	}
+    	if ($operationResultFilter != '' && !is_null($operationResultFilter)) {
+    		$parameters[] = 'OperationResultFilter=' . ucfirst($operationResultFilter);
+    	}
+    	if ($continuationToken != '' && !is_null($continuationToken)) {
+    		$parameters[] = 'ContinuationToken=' . $continuationToken;
+    	}
+    	
+    	$response = $this->_performRequest(self::OP_OPERATIONS, '?' . implode('&', $parameters));
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			$namespaces = $result->getDocNamespaces(); 
+    		$result->registerXPathNamespace('__empty_ns', $namespaces['']);
+ 
+			$xmlOperations = $result->xpath('//__empty_ns:SubscriptionOperation');
+			
+		    // Create return value
+		    $returnValue = array();		    
+		    foreach ($xmlOperations as $xmlOperation) {
+		    	// Create operation instance
+		    	$operation = new Zend_Service_WindowsAzure_Management_SubscriptionOperationInstance(
+		    		$xmlOperation->OperationId,
+		    		$xmlOperation->OperationObjectId,
+		    		$xmlOperation->OperationName,
+		    		array(),
+		    		(array)$xmlOperation->OperationCaller,
+		    		(array)$xmlOperation->OperationStatus
+		    	);
+		    	
+		    	// Parse parameters
+		    	$xmlOperation->registerXPathNamespace('__empty_ns', $namespaces['']); 
+		    	$xmlParameters = $xmlOperation->xpath('.//__empty_ns:OperationParameter');
+		    	foreach ($xmlParameters as $xmlParameter) {
+		    		$xmlParameterDetails = $xmlParameter->children('http://schemas.datacontract.org/2004/07/Microsoft.Samples.WindowsAzure.ServiceManagement');
+		    		$operation->addOperationParameter((string)$xmlParameterDetails->Name, (string)$xmlParameterDetails->Value);
+		    	}
+		    	
+    		    // Add to result
+    		    $returnValue[] = $operation;
+		    }
+		    
+			// More data?
+		    if (!is_null($result->ContinuationToken) && $result->ContinuationToken != '') {
+		    	$returnValue = array_merge($returnValue, $this->listSubscriptionOperations($startTime, $endTime, $objectIdFilter, $operationResultFilter, (string)$result->ContinuationToken));
+		    }
+		    
+		    // Return
+		    return $returnValue;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * Wait for an operation to complete
+     * 
+     * @param string $requestId The request ID. If omitted, the last request ID will be used.
+     * @param int $sleepInterval Sleep interval in milliseconds.
+     * @return Zend_Service_WindowsAzure_Management_OperationStatusInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function waitForOperation($requestId = '', $sleepInterval = 250)
+    {
+    	if ($requestId == '') {
+    		$requestId = $this->getLastRequestId();
+    	}
+    	if ($requestId == '' || is_null($requestId)) {
+    		return null;
+    	}
+
+		$status = $this->getOperationStatus($requestId);
+		while ($status->Status == 'InProgress') {
+		  $status = $this->getOperationStatus($requestId);
+		  usleep($sleepInterval);
+		}
+		
+		return $status;
+    }
+    
+	/**
+	 * Creates a new Zend_Service_WindowsAzure_Storage_Blob instance for the current account
+	 *
+	 * @param string $serviceName the service name to create a storage client for.
+	 * @param Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy Retry policy to use when making requests
+	 * @return Zend_Service_WindowsAzure_Storage_Blob
+	 */
+	public function createBlobClientForService($serviceName, Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy = null)
+	{
+		if ($serviceName == '' || is_null($serviceName)) {
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$storageKeys = $this->getStorageAccountKeys($serviceName);
+    	
+		
+		
+		return new Zend_Service_WindowsAzure_Storage_Blob(
+			Zend_Service_WindowsAzure_Storage::URL_CLOUD_BLOB,
+			$serviceName,
+			$storageKeys[0],
+			false,
+			$retryPolicy
+		);
+	}
+	
+	/**
+	 * Creates a new Zend_Service_WindowsAzure_Storage_Table instance for the current account
+	 *
+	 * @param string $serviceName the service name to create a storage client for.
+	 * @param Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy Retry policy to use when making requests
+	 * @return Zend_Service_WindowsAzure_Storage_Table
+	 */
+	public function createTableClientForService($serviceName, Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy = null)
+	{
+		if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$storageKeys = $this->getStorageAccountKeys($serviceName);
+		
+		return new Zend_Service_WindowsAzure_Storage_Table(
+			Zend_Service_WindowsAzure_Storage::URL_CLOUD_TABLE,
+			$serviceName,
+			$storageKeys[0],
+			false,
+			$retryPolicy
+		);
+	}
+	
+	/**
+	 * Creates a new Zend_Service_WindowsAzure_Storage_Queue instance for the current account
+	 *
+	 * @param string $serviceName the service name to create a storage client for.
+	 * @param Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy Retry policy to use when making requests
+	 * @return Zend_Service_WindowsAzure_Storage_Queue
+	 */
+	public function createQueueClientForService($serviceName, Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract $retryPolicy = null)
+	{
+		if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$storageKeys = $this->getStorageAccountKeys($serviceName);
+    	
+		require_once 'Zend/Service/WindowsAzure/Storage/Queue.php';
+		
+		return new Zend_Service_WindowsAzure_Storage_Queue(
+			Zend_Service_WindowsAzure_Storage::URL_CLOUD_QUEUE,
+			$serviceName,
+			$storageKeys[0],
+			false,
+			$retryPolicy
+		);
+	}
+    
+    /**
+     * The List Storage Accounts operation lists the storage accounts available under
+     * the current subscription.
+     *
+     * @return array An array of Zend_Service_WindowsAzure_Management_StorageServiceInstance
+     */
+    public function listStorageAccounts()
+    {
+    	$response = $this->_performRequest(self::OP_STORAGE_ACCOUNTS);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+    		if (!$result->StorageService) {
+				return array();
+			}
+		    if (count($result->StorageService) > 1) {
+    		    $xmlServices = $result->StorageService;
+    		} else {
+    		    $xmlServices = array($result->StorageService);
+    		}
+    		
+			$services = array();
+			if (!is_null($xmlServices)) {				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_StorageServiceInstance(
+					    (string)$xmlServices[$i]->Url,
+					    (string)$xmlServices[$i]->ServiceName
+					);
+				}
+			}
+			return $services;
+		} else {
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Get Storage Account Properties operation returns the system properties for the
+     * specified storage account. These properties include: the address, description, and 
+     * label of the storage account; and the name of the affinity group to which the service
+     * belongs, or its geo-location if it is not part of an affinity group.
+     *
+     * @param string $serviceName The name of your service.
+     * @return Zend_Service_WindowsAzure_Management_StorageServiceInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getStorageAccountProperties($serviceName)
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$response = $this->_performRequest(self::OP_STORAGE_ACCOUNTS . '/' . $serviceName);
+
+    	if ($response->isSuccessful()) {
+			$xmlService = $this->_parseResponse($response);
+
+			if (!is_null($xmlService)) {
+				require_once 'Zend/Service/WindowsAzure/Management/StorageServiceInstance.php';
+				
+				return new Zend_Service_WindowsAzure_Management_StorageServiceInstance(
+					(string)$xmlService->Url,
+					(string)$xmlService->ServiceName,
+					(string)$xmlService->StorageServiceProperties->Description,
+					(string)$xmlService->StorageServiceProperties->AffinityGroup,
+					(string)$xmlService->StorageServiceProperties->Location,
+					(string)$xmlService->StorageServiceProperties->Label
+				);
+			}
+			return null;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Get Storage Keys operation returns the primary
+     * and secondary access keys for the specified storage account.
+     *
+     * @param string $serviceName The name of your service.
+     * @return array An array of strings
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getStorageAccountKeys($serviceName)
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$response = $this->_performRequest(self::OP_STORAGE_ACCOUNTS . '/' . $serviceName . '/keys');
+
+    	if ($response->isSuccessful()) {
+			$xmlService = $this->_parseResponse($response);
+
+			if (!is_null($xmlService)) {
+				return array(
+					(string)$xmlService->StorageServiceKeys->Primary,
+					(string)$xmlService->StorageServiceKeys->Secondary
+				);
+			}
+			return array();
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Regenerate Keys operation regenerates the primary
+     * or secondary access key for the specified storage account.
+     *
+     * @param string $serviceName The name of your service.
+     * @param string $key		  The key to regenerate (primary or secondary)
+     * @return array An array of strings
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function regenerateStorageAccountKey($serviceName, $key = 'primary')
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$key = strtolower($key);
+    	if ($key != 'primary' && $key != 'secondary') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Key identifier should be primary|secondary.');
+    	}
+    	
+    	$response = $this->_performRequest(
+    		self::OP_STORAGE_ACCOUNTS . '/' . $serviceName . '/keys', '?action=regenerate',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml'),
+    		'<?xml version="1.0" encoding="utf-8"?>
+             <RegenerateKeys xmlns="http://schemas.microsoft.com/windowsazure">
+               <KeyType>' . ucfirst($key) . '</KeyType>
+             </RegenerateKeys>');
+
+    	if ($response->isSuccessful()) {
+			$xmlService = $this->_parseResponse($response);
+
+			if (!is_null($xmlService)) {
+				return array(
+					(string)$xmlService->StorageServiceKeys->Primary,
+					(string)$xmlService->StorageServiceKeys->Secondary
+				);
+			}
+			return array();
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The List Hosted Services operation lists the hosted services available
+     * under the current subscription.
+     *
+     * @return array An array of Zend_Service_WindowsAzure_Management_HostedServiceInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listHostedServices()
+    {
+    	$response = $this->_performRequest(self::OP_HOSTED_SERVICES);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+    		if (!$result->HostedService) {
+				return array();
+			}
+		    if (count($result->HostedService) > 1) {
+    		    $xmlServices = $result->HostedService;
+    		} else {
+    		    $xmlServices = array($result->HostedService);
+    		}
+    		
+			$services = array();
+			if (!is_null($xmlServices)) {	
+				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_HostedServiceInstance(
+					    (string)$xmlServices[$i]->Url,
+					    (string)$xmlServices[$i]->ServiceName
+					);
+				}
+			}
+			return $services;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Create Hosted Service operation creates a new hosted service in Windows Azure.
+     * 
+     * @param string $serviceName A name for the hosted service that is unique to the subscription.
+     * @param string $label A label for the hosted service. The label may be up to 100 characters in length.
+     * @param string $description A description for the hosted service. The description may be up to 1024 characters in length.
+     * @param string $location Required if AffinityGroup is not specified. The location where the hosted service will be created. 
+     * @param string $affinityGroup Required if Location is not specified. The name of an existing affinity group associated with this subscription.
+     */
+    public function createHostedService($serviceName, $label, $description = '', $location = null, $affinityGroup = null)
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+        if (strlen($description) > 1024) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Description is too long. The maximum length is 1024 characters.');
+    	}
+    	if ( (is_null($location) && is_null($affinityGroup)) || (!is_null($location) && !is_null($affinityGroup)) ) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Please specify a location -or- an affinity group for the service.');
+    	}
+    	
+    	$locationOrAffinityGroup = is_null($location)
+    		? '<AffinityGroup>' . $affinityGroup . '</AffinityGroup>'
+    		: '<Location>' . $location . '</Location>';
+    	
+        $response = $this->_performRequest(self::OP_HOSTED_SERVICES, '',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<CreateHostedService xmlns="http://schemas.microsoft.com/windowsazure"><ServiceName>' . $serviceName . '</ServiceName><Label>' . base64_encode($label) . '</Label><Description>' . $description . '</Description>' . $locationOrAffinityGroup . '</CreateHostedService>');
+ 	
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Update Hosted Service operation updates the label and/or the description for a hosted service in Windows Azure.
+     * 
+     * @param string $serviceName A name for the hosted service that is unique to the subscription.
+     * @param string $label A label for the hosted service. The label may be up to 100 characters in length.
+     * @param string $description A description for the hosted service. The description may be up to 1024 characters in length.
+     */
+    public function updateHostedService($serviceName, $label, $description = '')
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+    	
+        $response = $this->_performRequest(self::OP_HOSTED_SERVICES . '/' . $serviceName, '',
+    		Zend_Http_Client::PUT,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<UpdateHostedService xmlns="http://schemas.microsoft.com/windowsazure"><Label>' . base64_encode($label) . '</Label><Description>' . $description . '</Description></UpdateHostedService>');
+ 	
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Delete Hosted Service operation deletes the specified hosted service in Windows Azure.
+     * 
+     * @param string $serviceName A name for the hosted service that is unique to the subscription.
+     */
+    public function deleteHostedService($serviceName)
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+        $response = $this->_performRequest(self::OP_HOSTED_SERVICES . '/' . $serviceName, '', Zend_Http_Client::DELETE);
+ 	
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Get Hosted Service Properties operation retrieves system properties
+     * for the specified hosted service. These properties include the service
+     * name and service type; the name of the affinity group to which the service
+     * belongs, or its location if it is not part of an affinity group; and
+     * optionally, information on the service's deployments.
+     *
+     * @param string $serviceName The name of your service.
+     * @return Zend_Service_WindowsAzure_Management_HostedServiceInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getHostedServiceProperties($serviceName)
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$response = $this->_performRequest(self::OP_HOSTED_SERVICES . '/' . $serviceName, '?embed-detail=true');
+
+    	if ($response->isSuccessful()) {
+			$xmlService = $this->_parseResponse($response);
+
+			if (!is_null($xmlService)) {
+				
+				$returnValue = new Zend_Service_WindowsAzure_Management_HostedServiceInstance(
+					(string)$xmlService->Url,
+					(string)$xmlService->ServiceName,
+					(string)$xmlService->HostedServiceProperties->Description,
+					(string)$xmlService->HostedServiceProperties->AffinityGroup,
+					(string)$xmlService->HostedServiceProperties->Location,
+					(string)$xmlService->HostedServiceProperties->Label
+				);
+				
+				// Deployments
+		    	if (count($xmlService->Deployments->Deployment) > 1) {
+    		    	$xmlServices = $xmlService->Deployments->Deployment;
+    			} else {
+    		    	$xmlServices = array($xmlService->Deployments->Deployment);
+    			}
+    			
+    			$deployments = array();
+    			foreach ($xmlServices as $xmlDeployment) {
+					$deployments[] = $this->_convertXmlElementToDeploymentInstance($xmlDeployment);
+    			}
+				$returnValue->Deployments = $deployments;
+				
+				return $returnValue;
+			}
+			return null;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+
+    /**
+     * The Create Deployment operation uploads a new service package
+     * and creates a new deployment on staging or production.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+	 * @param string $name              The name for the deployment. The deployment ID as listed on the Windows Azure management portal must be unique among other deployments for the hosted service.
+	 * @param string $label             A URL that refers to the location of the service package in the Blob service. The service package must be located in a storage account beneath the same subscription.
+	 * @param string $packageUrl        The service configuration file for the deployment.
+	 * @param string $configuration     A label for this deployment, up to 100 characters in length.
+	 * @param boolean $startDeployment  Indicates whether to start the deployment immediately after it is created.
+	 * @param boolean $treatWarningsAsErrors Indicates whether to treat package validation warnings as errors.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function createDeployment($serviceName, $deploymentSlot, $name, $label, $packageUrl, $configuration, $startDeployment = false, $treatWarningsAsErrors = false)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	if ($name == '' || is_null($name)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Name should be specified.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+    	if ($packageUrl == '' || is_null($packageUrl)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Package URL should be specified.');
+    	}
+    	if ($configuration == '' || is_null($configuration)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Configuration should be specified.');
+    	}
+    	
+    	if (@file_exists($configuration)) {
+    		$configuration = utf8_decode(file_get_contents($configuration));
+    	}
+    	
+    	// Clean up the configuration
+    	$conformingConfiguration = $this->_cleanConfiguration($configuration);
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+        $response = $this->_performRequest($operationUrl, '',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<CreateDeployment xmlns="http://schemas.microsoft.com/windowsazure"><Name>' . $name . '</Name><PackageUrl>' . $packageUrl . '</PackageUrl><Label>' . base64_encode($label) . '</Label><Configuration>' . base64_encode($conformingConfiguration) . '</Configuration><StartDeployment>' . ($startDeployment ? 'true' : 'false') . '</StartDeployment><TreatWarningsAsError>' . ($treatWarningsAsErrors ? 'true' : 'false') . '</TreatWarningsAsError></CreateDeployment>');
+ 	
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}    	
+    }
+    
+    /**
+     * The Get Deployment operation returns configuration information, status,
+     * and system properties for the specified deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @return Zend_Service_WindowsAzure_Management_DeploymentInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getDeploymentBySlot($serviceName, $deploymentSlot)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+    	return $this->_getDeployment($operationUrl);
+    }
+    
+    /**
+     * The Get Deployment operation returns configuration information, status,
+     * and system properties for the specified deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+     * @return Zend_Service_WindowsAzure_Management_DeploymentInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getDeploymentByDeploymentId($serviceName, $deploymentId)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+        if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId;
+    	return $this->_getDeployment($operationUrl);
+    }
+    
+    /**
+     * The Get Deployment operation returns configuration information, status,
+     * and system properties for the specified deployment.
+     * 
+     * @param string $operationUrl		The operation url
+     * @return Zend_Service_WindowsAzure_Management_DeploymentInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _getDeployment($operationUrl)
+    {
+        $response = $this->_performRequest($operationUrl);
+
+    	if ($response->isSuccessful()) {
+			$xmlService = $this->_parseResponse($response);
+			
+			return $this->_convertXmlElementToDeploymentInstance($xmlService);
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Swap Deployment operation initiates a virtual IP swap between
+     * the staging and production deployment environments for a service.
+     * If the service is currently running in the staging environment,
+     * it will be swapped to the production environment. If it is running
+     * in the production environment, it will be swapped to staging.
+     * 
+     * @param string $serviceName The service name.
+     * @param string $productionDeploymentName The name of the production deployment.
+     * @param string $sourceDeploymentName The name of the source deployment.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function swapDeployment($serviceName, $productionDeploymentName, $sourceDeploymentName)
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($productionDeploymentName == '' || is_null($productionDeploymentName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Production Deployment ID should be specified.');
+    	}
+    	if ($sourceDeploymentName == '' || is_null($sourceDeploymentName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Source Deployment ID should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName;
+        $response = $this->_performRequest($operationUrl, '',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<Swap xmlns="http://schemas.microsoft.com/windowsazure"><Production>' . $productionDeploymentName . '</Production><SourceDeployment>' . $sourceDeploymentName . '</SourceDeployment></Swap>');
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}    	
+    }
+    
+    /**
+     * The Delete Deployment operation deletes the specified deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function deleteDeploymentBySlot($serviceName, $deploymentSlot)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+    	return $this->_deleteDeployment($operationUrl);
+    }
+    
+    /**
+     * The Delete Deployment operation deletes the specified deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function deleteDeploymentByDeploymentId($serviceName, $deploymentId)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId;
+    	return $this->_deleteDeployment($operationUrl);
+    }
+    
+    /**
+     * The Delete Deployment operation deletes the specified deployment.
+     * 
+     * @param string $operationUrl		The operation url
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _deleteDeployment($operationUrl)
+    {
+        $response = $this->_performRequest($operationUrl, '', Zend_Http_Client::DELETE);
+			 
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Update Deployment Status operation initiates a change in deployment status.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @param string $status            The deployment status (running|suspended)
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function updateDeploymentStatusBySlot($serviceName, $deploymentSlot, $status = 'running')
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	$status = strtolower($status);
+    	if ($status != 'running' && $status != 'suspended') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Status should be running|suspended.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+    	return $this->_updateDeploymentStatus($operationUrl, $status);
+    }
+    
+    /**
+     * The Update Deployment Status operation initiates a change in deployment status.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+     * @param string $status            The deployment status (running|suspended)
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function updateDeploymentStatusByDeploymentId($serviceName, $deploymentId, $status = 'running')
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+        $status = strtolower($status);
+    	if ($status != 'running' && $status != 'suspended') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Status should be running|suspended.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId;
+    	return $this->_updateDeploymentStatus($operationUrl, $status);
+    }
+    
+    /**
+     * The Update Deployment Status operation initiates a change in deployment status.
+     * 
+     * @param string $operationUrl		The operation url
+     * @param string $status            The deployment status (running|suspended)
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _updateDeploymentStatus($operationUrl, $status = 'running')
+    {
+        $response = $this->_performRequest($operationUrl . '/', '?comp=status',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<UpdateDeploymentStatus xmlns="http://schemas.microsoft.com/windowsazure"><Status>' . ucfirst($status) . '</Status></UpdateDeploymentStatus>');
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * Converts an XmlElement into a Zend_Service_WindowsAzure_Management_DeploymentInstance
+     * 
+     * @param object $xmlService The XML Element
+     * @return Zend_Service_WindowsAzure_Management_DeploymentInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _convertXmlElementToDeploymentInstance($xmlService)
+    {
+		if (!is_null($xmlService)) {
+			
+			$returnValue = new Zend_Service_WindowsAzure_Management_DeploymentInstance(
+				(string)$xmlService->Name,
+				(string)$xmlService->DeploymentSlot,
+				(string)$xmlService->PrivateID,
+				(string)$xmlService->Label,
+				(string)$xmlService->Url,
+				(string)$xmlService->Configuration,
+				(string)$xmlService->Status,
+				(string)$xmlService->UpgradeStatus,
+				(string)$xmlService->UpgradeType,
+				(string)$xmlService->CurrentUpgradeDomainState,
+				(string)$xmlService->CurrentUpgradeDomain,
+				(string)$xmlService->UpgradeDomainCount
+			);
+				
+			// Append role instances
+			if ($xmlService->RoleInstanceList && $xmlService->RoleInstanceList->RoleInstance) {
+				$xmlRoleInstances = $xmlService->RoleInstanceList->RoleInstance;
+				if (count($xmlService->RoleInstanceList->RoleInstance) == 1) {
+		    	    $xmlRoleInstances = array($xmlService->RoleInstanceList->RoleInstance);
+		    	}
+		    		
+				$roleInstances = array();
+				if (!is_null($xmlRoleInstances)) {				
+					for ($i = 0; $i < count($xmlRoleInstances); $i++) {
+						$roleInstances[] = array(
+						    'rolename' => (string)$xmlRoleInstances[$i]->RoleName,
+						    'instancename' => (string)$xmlRoleInstances[$i]->InstanceName,
+						    'instancestatus' => (string)$xmlRoleInstances[$i]->InstanceStatus
+						);
+					}
+				}
+				
+				$returnValue->RoleInstanceList = $roleInstances;
+			}
+			
+			// Append roles
+			if ($xmlService->RoleList && $xmlService->RoleList->Role) {
+				$xmlRoles = $xmlService->RoleList->Role;
+				if (count($xmlService->RoleList->Role) == 1) {
+		    	    $xmlRoles = array($xmlService->RoleList->Role);
+		    	}
+	    		
+				$roles = array();
+				if (!is_null($xmlRoles)) {				
+					for ($i = 0; $i < count($xmlRoles); $i++) {
+						$roles[] = array(
+						    'rolename' => (string)$xmlRoles[$i]->RoleName,
+						    'osversion' => (!is_null($xmlRoles[$i]->OsVersion) ? (string)$xmlRoles[$i]->OsVersion : (string)$xmlRoles[$i]->OperatingSystemVersion)					
+						);
+					}
+				}
+				$returnValue->RoleList = $roles;
+			}
+				
+			return $returnValue;
+		}
+		return null;
+    }
+    
+    /**
+     * Updates a deployment's role instance count.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @param string|array $roleName	The role name
+     * @param string|array $instanceCount The instance count
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+	public function setInstanceCountBySlot($serviceName, $deploymentSlot, $roleName, $instanceCount) {
+	    if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	if ($roleName == '' || is_null($roleName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Role name name should be specified.');
+    	}
+    	
+		// Get configuration
+		$deployment = $this->getDeploymentBySlot($serviceName, $deploymentSlot);
+		$configuration = $deployment->Configuration;
+		$configuration = $this->_updateInstanceCountInConfiguration($roleName, $instanceCount, $configuration);
+		
+		// Update configuration
+		$this->configureDeploymentBySlot($serviceName, $deploymentSlot, $configuration);		
+	}
+	
+    /**
+     * Updates a deployment's role instance count.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @param string|array $roleName	The role name
+     * @param string|array $instanceCount The instance count
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function setInstanceCountByDeploymentId($serviceName, $deploymentId, $roleName, $instanceCount)
+    {
+	    if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+        if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+    	if ($roleName == '' || is_null($roleName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Role name name should be specified.');
+    	}
+    	
+		// Get configuration
+		$deployment = $this->getDeploymentByDeploymentId($serviceName, $deploymentId);
+		$configuration = $deployment->Configuration;
+		$configuration = $this->_updateInstanceCountInConfiguration($roleName, $instanceCount, $configuration);
+		
+		// Update configuration
+		$this->configureDeploymentByDeploymentId($serviceName, $deploymentId, $configuration);
+    }
+	
+    /**
+     * Updates instance count in configuration XML.
+     * 
+     * @param string|array $roleName			The role name
+     * @param string|array $instanceCount		The instance count
+     * @param string $configuration             XML configuration represented as a string
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+	protected function _updateInstanceCountInConfiguration($roleName, $instanceCount, $configuration) {
+    	// Change variables
+		if (!is_array($roleName)) {
+			$roleName = array($roleName);
+		}
+		if (!is_array($instanceCount)) {
+			$instanceCount = array($instanceCount);
+		}
+
+		$configuration = preg_replace('/(<\?xml[^?]+?)utf-16/i', '$1utf-8', $configuration);
+		//$configuration = '<?xml version="1.0">' . substr($configuration, strpos($configuration, '>') + 2);
+
+		$xml = simplexml_load_string($configuration); 
+		
+		// http://www.php.net/manual/en/simplexmlelement.xpath.php#97818
+		$namespaces = $xml->getDocNamespaces();
+	    $xml->registerXPathNamespace('__empty_ns', $namespaces['']); 
+	
+		for ($i = 0; $i < count($roleName); $i++) {
+			$elements = $xml->xpath('//__empty_ns:Role[@name="' . $roleName[$i] . '"]/__empty_ns:Instances');
+	
+			if (count($elements) == 1) {
+				$element = $elements[0];
+				$element['count'] = $instanceCount[$i];
+			} 
+		}
+		
+		$configuration = $xml->asXML();
+		//$configuration = preg_replace('/(<\?xml[^?]+?)utf-8/i', '$1utf-16', $configuration);
+
+		return $configuration;
+	}
+    
+    /**
+     * The Change Deployment Configuration request may be specified as follows.
+     * Note that you can change a deployment's configuration either by specifying the deployment
+     * environment (staging or production), or by specifying the deployment's unique name. 
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @param string $configuration     XML configuration represented as a string
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function configureDeploymentBySlot($serviceName, $deploymentSlot, $configuration)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	if ($configuration == '' || is_null($configuration)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Configuration name should be specified.');
+    	}
+    	
+        if (@file_exists($configuration)) {
+    		$configuration = utf8_decode(file_get_contents($configuration));
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+    	return $this->_configureDeployment($operationUrl, $configuration);
+    }
+    
+    /**
+     * The Change Deployment Configuration request may be specified as follows.
+     * Note that you can change a deployment's configuration either by specifying the deployment
+     * environment (staging or production), or by specifying the deployment's unique name. 
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+     * @param string $configuration     XML configuration represented as a string
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function configureDeploymentByDeploymentId($serviceName, $deploymentId, $configuration)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+    	if ($configuration == '' || is_null($configuration)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Configuration name should be specified.');
+    	}
+    	
+        if (@file_exists($configuration)) {
+    		$configuration = utf8_decode(file_get_contents($configuration));
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId;
+    	return $this->_configureDeployment($operationUrl, $configuration);
+    }
+    
+    /**
+     * The Change Deployment Configuration request may be specified as follows.
+     * Note that you can change a deployment's configuration either by specifying the deployment
+     * environment (staging or production), or by specifying the deployment's unique name. 
+     * 
+     * @param string $operationUrl		The operation url
+     * @param string $configuration     XML configuration represented as a string
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _configureDeployment($operationUrl, $configuration)
+    {
+    	// Clean up the configuration
+    	$conformingConfiguration = $this->_cleanConfiguration($configuration);
+
+        $response = $this->_performRequest($operationUrl . '/', '?comp=config',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<ChangeConfiguration xmlns="http://schemas.microsoft.com/windowsazure" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><Configuration>' . base64_encode($conformingConfiguration) . '</Configuration></ChangeConfiguration>');
+			 
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Upgrade Deployment operation initiates an upgrade.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+	 * @param string $label             A URL that refers to the location of the service package in the Blob service. The service package must be located in a storage account beneath the same subscription.
+	 * @param string $packageUrl        The service configuration file for the deployment.
+	 * @param string $configuration     A label for this deployment, up to 100 characters in length.
+     * @param string $mode              The type of upgrade to initiate. Possible values are Auto or Manual.
+     * @param string $roleToUpgrade     The name of the specific role to upgrade.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function upgradeDeploymentBySlot($serviceName, $deploymentSlot, $label, $packageUrl, $configuration, $mode = 'auto', $roleToUpgrade = null)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+    	if ($packageUrl == '' || is_null($packageUrl)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Package URL should be specified.');
+    	}
+    	if ($configuration == '' || is_null($configuration)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Configuration should be specified.');
+    	}
+    	$mode = strtolower($mode);
+    	if ($mode != 'auto' && $mode != 'manual') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Mode should be auto|manual.');
+    	}
+    	
+    	if (@file_exists($configuration)) {
+    		$configuration = utf8_decode(file_get_contents($configuration));
+    	}
+    	
+		$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+    	return $this->_upgradeDeployment($operationUrl, $label, $packageUrl, $configuration, $mode, $roleToUpgrade);  	
+    }
+    
+    /**
+     * The Upgrade Deployment operation initiates an upgrade.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+	 * @param string $label             A URL that refers to the location of the service package in the Blob service. The service package must be located in a storage account beneath the same subscription.
+	 * @param string $packageUrl        The service configuration file for the deployment.
+	 * @param string $configuration     A label for this deployment, up to 100 characters in length.
+     * @param string $mode              The type of upgrade to initiate. Possible values are Auto or Manual.
+     * @param string $roleToUpgrade     The name of the specific role to upgrade.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function upgradeDeploymentByDeploymentId($serviceName, $deploymentId, $label, $packageUrl, $configuration, $mode = 'auto', $roleToUpgrade = null)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+    	if ($packageUrl == '' || is_null($packageUrl)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Package URL should be specified.');
+    	}
+    	if ($configuration == '' || is_null($configuration)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Configuration should be specified.');
+    	}
+    	$mode = strtolower($mode);
+    	if ($mode != 'auto' && $mode != 'manual') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Mode should be auto|manual.');
+    	}
+    	
+    	if (@file_exists($configuration)) {
+    		$configuration = utf8_decode(file_get_contents($configuration));
+    	}
+    	
+		$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId;
+    	return $this->_upgradeDeployment($operationUrl, $label, $packageUrl, $configuration, $mode, $roleToUpgrade);  	
+    }
+    
+    
+    /**
+     * The Upgrade Deployment operation initiates an upgrade.
+     * 
+     * @param string $operationUrl		The operation url
+	 * @param string $label             A URL that refers to the location of the service package in the Blob service. The service package must be located in a storage account beneath the same subscription.
+	 * @param string $packageUrl        The service configuration file for the deployment.
+	 * @param string $configuration     A label for this deployment, up to 100 characters in length.
+     * @param string $mode              The type of upgrade to initiate. Possible values are Auto or Manual.
+     * @param string $roleToUpgrade     The name of the specific role to upgrade.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _upgradeDeployment($operationUrl, $label, $packageUrl, $configuration, $mode, $roleToUpgrade)
+    {
+    	// Clean up the configuration
+    	$conformingConfiguration = $this->_cleanConfiguration($configuration);
+    	
+        $response = $this->_performRequest($operationUrl . '/', '?comp=upgrade',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<UpgradeDeployment xmlns="http://schemas.microsoft.com/windowsazure"><Mode>' . ucfirst($mode) . '</Mode><PackageUrl>' . $packageUrl . '</PackageUrl><Configuration>' . base64_encode($conformingConfiguration) . '</Configuration><Label>' . base64_encode($label) . '</Label>' . (!is_null($roleToUpgrade) ? '<RoleToUpgrade>' . $roleToUpgrade . '</RoleToUpgrade>' : '') . '</UpgradeDeployment>');		
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Walk Upgrade Domain operation specifies the next upgrade domain to be walked during an in-place upgrade.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+	 * @param int $upgradeDomain     An integer value that identifies the upgrade domain to walk. Upgrade domains are identified with a zero-based index: the first upgrade domain has an ID of 0, the second has an ID of 1, and so on.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function walkUpgradeDomainBySlot($serviceName, $deploymentSlot, $upgradeDomain = 0)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+    	
+		$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot;
+    	return $this->_walkUpgradeDomain($operationUrl, $upgradeDomain);  	
+    }
+    
+    /**
+     * The Walk Upgrade Domain operation specifies the next upgrade domain to be walked during an in-place upgrade.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+	 * @param int $upgradeDomain     An integer value that identifies the upgrade domain to walk. Upgrade domains are identified with a zero-based index: the first upgrade domain has an ID of 0, the second has an ID of 1, and so on.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function walkUpgradeDomainByDeploymentId($serviceName, $deploymentId, $upgradeDomain = 0)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+    	
+		$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId;
+    	return $this->_walkUpgradeDomain($operationUrl, $upgradeDomain);  	
+    }
+    
+    
+    /**
+     * The Walk Upgrade Domain operation specifies the next upgrade domain to be walked during an in-place upgrade.
+     * 
+     * @param string $operationUrl   The operation url
+	 * @param int $upgradeDomain     An integer value that identifies the upgrade domain to walk. Upgrade domains are identified with a zero-based index: the first upgrade domain has an ID of 0, the second has an ID of 1, and so on.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _walkUpgradeDomain($operationUrl, $upgradeDomain = 0)
+    {
+        $response = $this->_performRequest($operationUrl . '/', '?comp=walkupgradedomain',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<WalkUpgradeDomain xmlns="http://schemas.microsoft.com/windowsazure"><UpgradeDomain>' . $upgradeDomain . '</UpgradeDomain></WalkUpgradeDomain>');		
+
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Reboot Role Instance operation requests a reboot of a role instance
+     * that is running in a deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @param string $roleInstanceName  The role instance name
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function rebootRoleInstanceBySlot($serviceName, $deploymentSlot, $roleInstanceName)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+        if ($roleInstanceName == '' || is_null($roleInstanceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Role instance name should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot . '/roleinstances/' . $roleInstanceName;
+    	return $this->_rebootOrReimageRoleInstance($operationUrl, 'reboot');
+    }
+    
+    /**
+     * The Reboot Role Instance operation requests a reboot of a role instance
+     * that is running in a deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	The deployment ID as listed on the Windows Azure management portal
+     * @param string $roleInstanceName  The role instance name
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function rebootRoleInstanceByDeploymentId($serviceName, $deploymentId, $roleInstanceName)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+        if ($roleInstanceName == '' || is_null($roleInstanceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Role instance name should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId . '/roleinstances/' . $roleInstanceName;
+    	return $this->_rebootOrReimageRoleInstance($operationUrl, 'reboot');
+    }
+
+    /**
+     * The Reimage Role Instance operation requests a reimage of a role instance
+     * that is running in a deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentSlot	The deployment slot (production or staging)
+     * @param string $roleInstanceName  The role instance name
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function reimageRoleInstanceBySlot($serviceName, $deploymentSlot, $roleInstanceName)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	$deploymentSlot = strtolower($deploymentSlot);
+    	if ($deploymentSlot != 'production' && $deploymentSlot != 'staging') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment slot should be production|staging.');
+    	}
+        if ($roleInstanceName == '' || is_null($roleInstanceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Role instance name should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deploymentslots/' . $deploymentSlot . '/roleinstances/' . $roleInstanceName;
+    	return $this->_rebootOrReimageRoleInstance($operationUrl, 'reimage');
+    }
+    
+    /**
+     * The Reimage Role Instance operation requests a reimage of a role instance
+     * that is running in a deployment.
+     * 
+     * @param string $serviceName		The service name
+     * @param string $deploymentId	    The deployment ID as listed on the Windows Azure management portal
+     * @param string $roleInstanceName  The role instance name
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function reimageRoleInstanceByDeploymentId($serviceName, $deploymentId, $roleInstanceName)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($deploymentId == '' || is_null($deploymentId)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Deployment ID should be specified.');
+    	}
+        if ($roleInstanceName == '' || is_null($roleInstanceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Role instance name should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/deployments/' . $deploymentId . '/roleinstances/' . $roleInstanceName;
+    	return $this->_rebootOrReimageRoleInstance($operationUrl, 'reimage');
+    }
+    
+    /**
+     * Reboots or reimages a role instance.
+     * 
+     * @param string $operationUrl		The operation url
+     * @param string $operation The operation (reboot|reimage)
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    protected function _rebootOrReimageRoleInstance($operationUrl, $operation = 'reboot')
+    {
+        $response = $this->_performRequest($operationUrl, '?comp=' . $operation, Zend_Http_Client::POST);
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The List Certificates operation lists all certificates associated with
+     * the specified hosted service.
+     * 
+     * @param string $serviceName		The service name
+     * @return array Array of Zend_Service_WindowsAzure_Management_CertificateInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listCertificates($serviceName)
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/certificates';
+        $response = $this->_performRequest($operationUrl);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+
+			if (!$result->Certificate) {
+				return array();
+			}
+		    if (count($result->Certificate) > 1) {
+    		    $xmlServices = $result->Certificate;
+    		} else {
+    		    $xmlServices = array($result->Certificate);
+    		}
+
+			$services = array();
+			if (!is_null($xmlServices)) {				
+				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_CertificateInstance(
+					    (string)$xmlServices[$i]->CertificateUrl,
+					    (string)$xmlServices[$i]->Thumbprint,
+					    (string)$xmlServices[$i]->ThumbprintAlgorithm,
+					    (string)$xmlServices[$i]->Data
+					);
+				}
+			}
+			return $services;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Get Certificate operation returns the public data for the specified certificate.
+     * 
+     * @param string $serviceName|$certificateUrl	The service name -or- the certificate URL
+     * @param string $algorithm         			Algorithm
+     * @param string $thumbprint        			Thumbprint
+     * @return Zend_Service_WindowsAzure_Management_CertificateInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getCertificate($serviceName, $algorithm = '', $thumbprint = '')
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name or certificate URL should be specified.');
+    	}
+    	if (strpos($serviceName, 'https') === false && ($algorithm == '' || is_null($algorithm)) && ($thumbprint == '' || is_null($thumbprint))) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Algorithm and thumbprint should be specified.');
+    	}
+    	
+    	$operationUrl = str_replace($this->getBaseUrl(), '', $serviceName);
+    	if (strpos($serviceName, 'https') === false) {
+    		$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/certificates/' . $algorithm . '-' . strtoupper($thumbprint);
+    	}
+    	
+        $response = $this->_performRequest($operationUrl);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+			return new Zend_Service_WindowsAzure_Management_CertificateInstance(
+				$this->getBaseUrl() . $operationUrl,
+				$algorithm,
+				$thumbprint,
+				(string)$result->Data
+			);
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Add Certificate operation adds a certificate to the subscription.
+     * 
+     * @param string $serviceName         The service name
+     * @param string $certificateData     Certificate data
+     * @param string $certificatePassword The certificate password
+     * @param string $certificateFormat   The certificate format. Currently, only 'pfx' is supported.
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function addCertificate($serviceName, $certificateData, $certificatePassword, $certificateFormat = 'pfx')
+    {
+    	if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name should be specified.');
+    	}
+    	if ($certificateData == '' || is_null($certificateData)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Certificate data should be specified.');
+    	}
+    	if ($certificatePassword == '' || is_null($certificatePassword)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Certificate password should be specified.');
+    	}
+    	if ($certificateFormat != 'pfx') {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Certificate format should be "pfx".');
+    	}
+    	
+    	if (@file_exists($certificateData)) {
+    		$certificateData = file_get_contents($certificateData);
+    	}
+    	
+    	$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/certificates';
+        $response = $this->_performRequest($operationUrl, '',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<CertificateFile xmlns="http://schemas.microsoft.com/windowsazure"><Data>' . base64_encode($certificateData) . '</Data><CertificateFormat>' . $certificateFormat . '</CertificateFormat><Password>' . $certificatePassword . '</Password></CertificateFile>');
+
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Delete Certificate operation deletes a certificate from the subscription's certificate store.
+     * 
+     * @param string $serviceName|$certificateUrl	The service name -or- the certificate URL
+     * @param string $algorithm         			Algorithm
+     * @param string $thumbprint        			Thumbprint
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function deleteCertificate($serviceName, $algorithm = '', $thumbprint = '')
+    {
+        if ($serviceName == '' || is_null($serviceName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Service name or certificate URL should be specified.');
+    	}
+    	if (strpos($serviceName, 'https') === false && ($algorithm == '' || is_null($algorithm)) && ($thumbprint == '' || is_null($thumbprint))) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Algorithm and thumbprint should be specified.');
+    	}
+    	
+    	$operationUrl = str_replace($this->getBaseUrl(), '', $serviceName);
+    	if (strpos($serviceName, 'https') === false) {
+    		$operationUrl = self::OP_HOSTED_SERVICES . '/' . $serviceName . '/certificates/' . $algorithm . '-' . strtoupper($thumbprint);
+    	}
+    	
+        $response = $this->_performRequest($operationUrl, '', Zend_Http_Client::DELETE);
+
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The List Affinity Groups operation lists the affinity groups associated with
+     * the specified subscription.
+     * 
+     * @return array Array of Zend_Service_WindowsAzure_Management_AffinityGroupInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listAffinityGroups()
+    {
+        $response = $this->_performRequest(self::OP_AFFINITYGROUPS);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+    		if (!$result->AffinityGroup) {
+				return array();
+			}
+		    if (count($result->AffinityGroup) > 1) {
+    		    $xmlServices = $result->AffinityGroup;
+    		} else {
+    		    $xmlServices = array($result->AffinityGroup);
+    		}
+    		
+			$services = array();
+			if (!is_null($xmlServices)) {				
+				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_AffinityGroupInstance(
+					    (string)$xmlServices[$i]->Name,
+					    (string)$xmlServices[$i]->Label,
+					    (string)$xmlServices[$i]->Description,
+					    (string)$xmlServices[$i]->Location
+					);
+				}
+			}
+			return $services;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Create Affinity Group operation creates a new affinity group for the specified subscription.
+     * 
+     * @param string $name A name for the affinity group that is unique to the subscription.
+     * @param string $label A label for the affinity group. The label may be up to 100 characters in length.
+     * @param string $description A description for the affinity group. The description may be up to 1024 characters in length.
+     * @param string $location The location where the affinity group will be created. To list available locations, use the List Locations operation. 
+     */
+    public function createAffinityGroup($name, $label, $description = '', $location = '')
+    {
+    	if ($name == '' || is_null($name)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Affinity group name should be specified.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+        if (strlen($description) > 1024) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Description is too long. The maximum length is 1024 characters.');
+    	}
+    	if ($location == '' || is_null($location)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Location should be specified.');
+    	}
+    	
+        $response = $this->_performRequest(self::OP_AFFINITYGROUPS, '',
+    		Zend_Http_Client::POST,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<CreateAffinityGroup xmlns="http://schemas.microsoft.com/windowsazure"><Name>' . $name . '</Name><Label>' . base64_encode($label) . '</Label><Description>' . $description . '</Description><Location>' . $location . '</Location></CreateAffinityGroup>');	
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Update Affinity Group operation updates the label and/or the description for an affinity group for the specified subscription.
+     * 
+     * @param string $name The name for the affinity group that should be updated.
+     * @param string $label A label for the affinity group. The label may be up to 100 characters in length.
+     * @param string $description A description for the affinity group. The description may be up to 1024 characters in length. 
+     */
+    public function updateAffinityGroup($name, $label, $description = '')
+    {
+    	if ($name == '' || is_null($name)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Affinity group name should be specified.');
+    	}
+    	if ($label == '' || is_null($label)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label should be specified.');
+    	}
+        if (strlen($label) > 100) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Label is too long. The maximum length is 100 characters.');
+    	}
+        if (strlen($description) > 1024) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Description is too long. The maximum length is 1024 characters.');
+    	}
+    	
+        $response = $this->_performRequest(self::OP_AFFINITYGROUPS . '/' . $name, '',
+    		Zend_Http_Client::PUT,
+    		array('Content-Type' => 'application/xml; charset=utf-8'),
+    		'<UpdateAffinityGroup xmlns="http://schemas.microsoft.com/windowsazure"><Label>' . base64_encode($label) . '</Label><Description>' . $description . '</Description></UpdateAffinityGroup>');	
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Delete Affinity Group operation deletes an affinity group in the specified subscription.
+     * 
+     * @param string $name The name for the affinity group that should be deleted.
+     */
+    public function deleteAffinityGroup($name)
+    {
+    	if ($name == '' || is_null($name)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Affinity group name should be specified.');
+    	}
+    	
+        $response = $this->_performRequest(self::OP_AFFINITYGROUPS . '/' . $name, '',
+    		Zend_Http_Client::DELETE);
+    		
+    	if (!$response->isSuccessful()) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The Get Affinity Group Properties operation returns the
+     * system properties associated with the specified affinity group.
+     * 
+     * @param string $affinityGroupName The affinity group name.
+     * @return Zend_Service_WindowsAzure_Management_AffinityGroupInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function getAffinityGroupProperties($affinityGroupName)
+    {
+        if ($affinityGroupName == '' || is_null($affinityGroupName)) {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+    		throw new Zend_Service_WindowsAzure_Management_Exception('Affinity group name should be specified.');
+    	}
+    	
+        $response = $this->_performRequest(self::OP_AFFINITYGROUPS . '/' . $affinityGroupName);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+			$affinityGroup = new Zend_Service_WindowsAzure_Management_AffinityGroupInstance(
+				$affinityGroupName,
+				(string)$result->Label,
+				(string)$result->Description,
+				(string)$result->Location
+			);
+
+			// Hosted services
+			if (count($result->HostedServices->HostedService) > 1) {
+		    	$xmlService = $result->HostedServices->HostedService;
+		    } else {
+		    	$xmlService = array($result->HostedServices->HostedService);
+		    }
+		    		
+			$services = array();
+			if (!is_null($xmlService)) {				
+				for ($i = 0; $i < count($xmlService); $i++) {
+					$services[] = array(
+						'url' => (string)$xmlService[$i]->Url,
+						'name' => (string)$xmlService[$i]->ServiceName
+					);
+				}
+			}
+			$affinityGroup->HostedServices = $services;
+			
+			// Storage services
+			if (count($result->StorageServices->StorageService) > 1) {
+		    	$xmlService = $result->StorageServices->StorageService;
+		    } else {
+		    	$xmlService = array($result->StorageServices->StorageService);
+		    }
+		    		
+			$services = array();
+			if (!is_null($xmlService)) {				
+				for ($i = 0; $i < count($xmlService); $i++) {
+					$services[] = array(
+						'url' => (string)$xmlService[$i]->Url,
+						'name' => (string)$xmlService[$i]->ServiceName
+					);
+				}
+			}
+			$affinityGroup->StorageServices = $services;	
+			
+			return $affinityGroup;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The List Locations operation lists all of the data center locations
+     * that are valid for your subscription.
+     * 
+     * @return array Array of Zend_Service_WindowsAzure_Management_LocationInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listLocations()
+    {
+        $response = $this->_performRequest(self::OP_LOCATIONS);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+    		if (!$result->Location) {
+				return array();
+			}
+		    if (count($result->Location) > 1) {
+    		    $xmlServices = $result->Location;
+    		} else {
+    		    $xmlServices = array($result->Location);
+    		}
+    		
+			$services = array();
+			if (!is_null($xmlServices)) {				
+				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_LocationInstance(
+					    (string)$xmlServices[$i]->Name
+					);
+				}
+			}
+			return $services;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The List Operating Systems operation lists the versions of the guest operating system
+     * that are currently available in Windows Azure. The 2010-10-28 version of List Operating
+     * Systems also indicates what family an operating system version belongs to.
+     * Currently Windows Azure supports two operating system families: the Windows Azure guest
+     * operating system that is substantially compatible with Windows Server 2008 SP2,
+     * and the Windows Azure guest operating system that is substantially compatible with
+     * Windows Server 2008 R2.
+     * 
+     * @return array Array of Zend_Service_WindowsAzure_Management_OperatingSystemInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listOperatingSystems()
+    {
+        $response = $this->_performRequest(self::OP_OPERATINGSYSTEMS);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+    		if (!$result->OperatingSystem) {
+				return array();
+			}
+		    if (count($result->OperatingSystem) > 1) {
+    		    $xmlServices = $result->OperatingSystem;
+    		} else {
+    		    $xmlServices = array($result->OperatingSystem);
+    		}
+    		
+			$services = array();
+			if (!is_null($xmlServices)) {				
+				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_OperatingSystemInstance(
+					    (string)$xmlServices[$i]->Version,
+					    (string)$xmlServices[$i]->Label,
+					    ((string)$xmlServices[$i]->IsDefault == 'true'),
+					    ((string)$xmlServices[$i]->IsActive == 'true'),
+					    (string)$xmlServices[$i]->Family,
+					    (string)$xmlServices[$i]->FamilyLabel
+					);
+				}
+			}
+			return $services;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * The List OS Families operation lists the guest operating system families
+     * available in Windows Azure, and also lists the operating system versions
+     * available for each family. Currently Windows Azure supports two operating
+     * system families: the Windows Azure guest operating system that is
+     * substantially compatible with Windows Server 2008 SP2, and the Windows
+     * Azure guest operating system that is substantially compatible with
+     * Windows Server 2008 R2.
+     * 
+     * @return array Array of Zend_Service_WindowsAzure_Management_OperatingSystemFamilyInstance
+     * @throws Zend_Service_WindowsAzure_Management_Exception
+     */
+    public function listOperatingSystemFamilies()
+    {
+        $response = $this->_performRequest(self::OP_OPERATINGSYSTEMFAMILIES);
+
+    	if ($response->isSuccessful()) {
+			$result = $this->_parseResponse($response);
+			
+    		if (!$result->OperatingSystemFamily) {
+				return array();
+			}
+		    if (count($result->OperatingSystemFamily) > 1) {
+    		    $xmlServices = $result->OperatingSystemFamily;
+    		} else {
+    		    $xmlServices = array($result->OperatingSystemFamily);
+    		}
+    		
+			$services = array();
+			if (!is_null($xmlServices)) {				
+				
+				for ($i = 0; $i < count($xmlServices); $i++) {
+					$services[] = new Zend_Service_WindowsAzure_Management_OperatingSystemFamilyInstance(
+					    (string)$xmlServices[$i]->Name,
+					    (string)$xmlServices[$i]->Label
+					);
+								
+					if (count($xmlServices[$i]->OperatingSystems->OperatingSystem) > 1) {
+		    		    $xmlOperatingSystems = $xmlServices[$i]->OperatingSystems->OperatingSystem;
+		    		} else {
+		    		    $xmlOperatingSystems = array($xmlServices[$i]->OperatingSystems->OperatingSystem);
+		    		}
+		    		
+					$operatingSystems = array();
+					if (!is_null($xmlOperatingSystems)) {				
+						require_once 'Zend/Service/WindowsAzure/Management/OperatingSystemInstance.php';
+						for ($i = 0; $i < count($xmlOperatingSystems); $i++) {
+							$operatingSystems[] = new Zend_Service_WindowsAzure_Management_OperatingSystemInstance(
+							    (string)$xmlOperatingSystems[$i]->Version,
+							    (string)$xmlOperatingSystems[$i]->Label,
+							    ((string)$xmlOperatingSystems[$i]->IsDefault == 'true'),
+							    ((string)$xmlOperatingSystems[$i]->IsActive == 'true'),
+							    (string)$xmlServices[$i]->Name,
+							    (string)$xmlServices[$i]->Label
+							);
+						}
+					}
+					$services[ count($services) - 1 ]->OperatingSystems = $operatingSystems;
+				}
+			}
+			return $services;
+		} else {
+			require_once 'Zend/Service/WindowsAzure/Management/Exception.php';
+			throw new Zend_Service_WindowsAzure_Management_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
+		}
+    }
+    
+    /**
+     * Clean configuration
+     * 
+     * @param string $configuration Configuration to clean.
+     * @return string
+     */
+    public function _cleanConfiguration($configuration) {
+    	$configuration = str_replace('?<?', '<?', $configuration);
+		$configuration = str_replace("\r", "", $configuration);
+		$configuration = str_replace("\n", "", $configuration);
+		
+		return $configuration;
+    }
+}