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renjianbo
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ZendFramework-1.11.3/library/Zend/Cloud/DocumentService/Adapter/WindowsAzure.php Normal file
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<?php
/**
* 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_Cloud
* @subpackage DocumentService
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
require_once 'Zend/Cloud/DocumentService/Adapter/AbstractAdapter.php';
require_once 'Zend/Cloud/DocumentService/Adapter/WindowsAzure/Query.php';
require_once 'Zend/Cloud/DocumentService/Exception.php';
require_once 'Zend/Service/WindowsAzure/Storage/DynamicTableEntity.php';
require_once 'Zend/Service/WindowsAzure/Storage/Table.php';
/**
* SimpleDB adapter for document service.
*
* @category Zend
* @package Zend_Cloud
* @subpackage DocumentService
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Cloud_DocumentService_Adapter_WindowsAzure
extends Zend_Cloud_DocumentService_Adapter_AbstractAdapter
{
/*
* Options array keys for the Azure adapter.
*/
const ACCOUNT_NAME = 'storage_accountname';
const ACCOUNT_KEY = 'storage_accountkey';
const HOST = "storage_host";
const PROXY_HOST = "storage_proxy_host";
const PROXY_PORT = "storage_proxy_port";
const PROXY_CREDENTIALS = "storage_proxy_credentials";
const DEFAULT_PARTITION_KEY = "default_partition_key";
const PARTITION_KEY = 'PartitionKey';
const ROW_KEY = 'RowKey';
const VERIFY_ETAG = "verify_etag";
const TIMESTAMP_KEY = "Timestamp";
const DEFAULT_HOST = Zend_Service_WindowsAzure_Storage::URL_CLOUD_TABLE;
const DEFAULT_QUERY_CLASS = 'Zend_Cloud_DocumentService_Adapter_WindowsAzure_Query';
/**
* Azure service instance.
*
* @var Zend_Service_WindowsAzure_Storage_Table
*/
protected $_storageClient;
/**
* Class to utilize for new query objects
*
* @var string
*/
protected $_queryClass = 'Zend_Cloud_DocumentService_Adapter_WindowsAzure_Query';
/**
* Partition key to use by default when constructing document identifiers
* @var string
*/
protected $_defaultPartitionKey;
/**
* Constructor
*
* @param array $options
* @return void
*/
public function __construct($options = array())
{
if ($options instanceof Zend_Config) {
$options = $options->toArray();
}
if (empty($options)) {
$options = array();
}
if (!is_array($options)) {
throw new Zend_Cloud_DocumentService_Exception('Invalid options provided');
}
if (isset($options[self::DOCUMENT_CLASS])) {
$this->setDocumentClass($options[self::DOCUMENT_CLASS]);
}
if (isset($options[self::DOCUMENTSET_CLASS])) {
$this->setDocumentSetClass($options[self::DOCUMENTSET_CLASS]);
}
if (isset($options[self::QUERY_CLASS])) {
$this->setQueryClass($options[self::QUERY_CLASS]);
}
// Build Zend_Service_WindowsAzure_Storage_Blob instance
if (!isset($options[self::HOST])) {
$host = self::DEFAULT_HOST;
} else {
$host = $options[self::HOST];
}
if (! isset($options[self::ACCOUNT_NAME])) {
throw new Zend_Cloud_DocumentService_Exception('No Windows Azure account name provided.');
}
if (! isset($options[self::ACCOUNT_KEY])) {
throw new Zend_Cloud_DocumentService_Exception('No Windows Azure account key provided.');
}
// TODO: support $usePathStyleUri and $retryPolicy
try {
$this->_storageClient = new Zend_Service_WindowsAzure_Storage_Table(
$host, $options[self::ACCOUNT_NAME], $options[self::ACCOUNT_KEY]);
// Parse other options
if (! empty($options[self::PROXY_HOST])) {
$proxyHost = $options[self::PROXY_HOST];
$proxyPort = isset($options[self::PROXY_PORT]) ? $options[self::PROXY_PORT] : 8080;
$proxyCredentials = isset($options[self::PROXY_CREDENTIALS]) ? $options[self::PROXY_CREDENTIALS] : '';
$this->_storageClient->setProxy(true, $proxyHost, $proxyPort, $proxyCredentials);
}
if (isset($options[self::HTTP_ADAPTER])) {
$this->_storageClient->setHttpClientChannel($options[self::HTTP_ADAPTER]);
}
} catch(Zend_Service_WindowsAzure_Exception $e) {
throw new Zend_Cloud_DocumentService_Exception('Error on document service creation: '.$e->getMessage(), $e->getCode(), $e);
}
}
/**
* Set the default partition key
*
* @param string $key
* @return Zend_Cloud_DocumentService_Adapter_WindowsAzure
*/
public function setDefaultPartitionKey($key)
{
$this->_validateKey($key);
$this->_defaultPartitionKey = $key;
return $this;
}
/**
* Retrieve default partition key
*
* @return null|string
*/
public function getDefaultPartitionKey()
{
return $this->_defaultPartitionKey;
}
/**
* Create collection.
*
* @param string $name
* @param array $options
* @return boolean
*/
public function createCollection($name, $options = null)
{
if (!preg_match('/^[A-Za-z][A-Za-z0-9]{2,}$/', $name)) {
throw new Zend_Cloud_DocumentService_Exception('Invalid collection name; Windows Azure collection names must consist of alphanumeric characters only, and be at least 3 characters long');
}
try {
$this->_storageClient->createTable($name);
} catch(Zend_Service_WindowsAzure_Exception $e) {
if (strpos($e->getMessage(), "table specified already exists") === false) {
throw new Zend_Cloud_DocumentService_Exception('Error on collection creation: '.$e->getMessage(), $e->getCode(), $e);
}
}
return true;
}
/**
* Delete collection.
*
* @param string $name
* @param array $options
* @return boolean
*/
public function deleteCollection($name, $options = null)
{
try {
$this->_storageClient->deleteTable($name);
} catch(Zend_Service_WindowsAzure_Exception $e) {
if (strpos($e->getMessage(), "does not exist") === false) {
throw new Zend_Cloud_DocumentService_Exception('Error on collection deletion: '.$e->getMessage(), $e->getCode(), $e);
}
}
return true;
}
/**
* List collections.
*
* @param array $options
* @return array
*/
public function listCollections($options = null)
{
try {
$tables = $this->_storageClient->listTables();
$restables = array();
foreach ($tables as $table) {
$restables[] = $table->name;
}
return $restables;
} catch(Zend_Service_WindowsAzure_Exception $e) {
throw new Zend_Cloud_DocumentService_Exception('Error on collection list: '.$e->getMessage(), $e->getCode(), $e);
}
return $tables;
}
/**
* Create suitable document from array of fields
*
* @param array $document
* @param null|string $collectionName Collection to which this document belongs
* @return Zend_Cloud_DocumentService_Document
*/
protected function _getDocumentFromArray($document, $collectionName = null)
{
$key = null;
if (!isset($document[Zend_Cloud_DocumentService_Document::KEY_FIELD])) {
if (isset($document[self::ROW_KEY])) {
$rowKey = $document[self::ROW_KEY];
unset($document[self::ROW_KEY]);
if (isset($document[self::PARTITION_KEY])) {
$key = array($document[self::PARTITION_KEY], $rowKey);
unset($document[self::PARTITION_KEY]);
} elseif (null !== ($partitionKey = $this->getDefaultPartitionKey())) {
$key = array($partitionKey, $rowKey);
} elseif (null !== $collectionName) {
$key = array($collectionName, $rowKey);
}
}
} else {
$key = $document[Zend_Cloud_DocumentService_Document::KEY_FIELD];
unset($document[Zend_Cloud_DocumentService_Document::KEY_FIELD]);
}
$documentClass = $this->getDocumentClass();
return new $documentClass($document, $key);
}
/**
* List all documents in a collection
*
* @param string $collectionName
* @param null|array $options
* @return Zend_Cloud_DocumentService_DocumentSet
*/
public function listDocuments($collectionName, array $options = null)
{
$select = $this->select()->from($collectionName);
return $this->query($collectionName, $select);
}
/**
* Insert document
*
* @param array|Zend_Cloud_DocumentService_Document $document
* @param array $options
* @return boolean
*/
public function insertDocument($collectionName, $document, $options = null)
{
if (is_array($document)) {
$document = $this->_getDocumentFromArray($document, $collectionName);
}
if (!$document instanceof Zend_Cloud_DocumentService_Document) {
throw new Zend_Cloud_DocumentService_Exception('Invalid document supplied');
}
$key = $this->_validateDocumentId($document->getId(), $collectionName);
$document->setId($key);
$this->_validateCompositeKey($key);
$this->_validateFields($document);
try {
$entity = new Zend_Service_WindowsAzure_Storage_DynamicTableEntity($key[0], $key[1]);
$entity->setAzureValues($document->getFields(), true);
$this->_storageClient->insertEntity($collectionName, $entity);
} catch(Zend_Service_WindowsAzure_Exception $e) {
throw new Zend_Cloud_DocumentService_Exception('Error on document insertion: '.$e->getMessage(), $e->getCode(), $e);
}
}
/**
* Replace document.
*
* The new document replaces the existing document.
*
* @param Zend_Cloud_DocumentService_Document $document
* @param array $options
* @return boolean
*/
public function replaceDocument($collectionName, $document, $options = null)
{
if (is_array($document)) {
$document = $this->_getDocumentFromArray($document, $collectionName);
}
if (!$document instanceof Zend_Cloud_DocumentService_Document) {
throw new Zend_Cloud_DocumentService_Exception('Invalid document supplied');
}
$key = $this->_validateDocumentId($document->getId(), $collectionName);
$this->_validateFields($document);
try {
$entity = new Zend_Service_WindowsAzure_Storage_DynamicTableEntity($key[0], $key[1]);
$entity->setAzureValues($document->getFields(), true);
if (isset($options[self::VERIFY_ETAG])) {
$entity->setEtag($options[self::VERIFY_ETAG]);
}
$this->_storageClient->updateEntity($collectionName, $entity, isset($options[self::VERIFY_ETAG]));
} catch(Zend_Service_WindowsAzure_Exception $e) {
throw new Zend_Cloud_DocumentService_Exception('Error on document replace: '.$e->getMessage(), $e->getCode(), $e);
}
}
/**
* Update document.
*
* The new document is merged the existing document.
*
* @param string $collectionName
* @param mixed|Zend_Cloud_DocumentService_Document $documentId Document identifier or document contaiing updates
* @param null|array|Zend_Cloud_DocumentService_Document Fields to update (or new fields))
* @param array $options
* @return boolean
*/
public function updateDocument($collectionName, $documentId, $fieldset = null, $options = null)
{
if (null === $fieldset && $documentId instanceof Zend_Cloud_DocumentService_Document) {
$fieldset = $documentId->getFields();
$documentId = $documentId->getId();
} elseif ($fieldset instanceof Zend_Cloud_DocumentService_Document) {
if ($documentId == null) {
$documentId = $fieldset->getId();
}
$fieldset = $fieldset->getFields();
}
$this->_validateCompositeKey($documentId, $collectionName);
$this->_validateFields($fieldset);
try {
$entity = new Zend_Service_WindowsAzure_Storage_DynamicTableEntity($documentId[0], $documentId[1]);
// Ensure timestamp is set correctly
if (isset($fieldset[self::TIMESTAMP_KEY])) {
$entity->setTimestamp($fieldset[self::TIMESTAMP_KEY]);
unset($fieldset[self::TIMESTAMP_KEY]);
}
$entity->setAzureValues($fieldset, true);
if (isset($options[self::VERIFY_ETAG])) {
$entity->setEtag($options[self::VERIFY_ETAG]);
}
$this->_storageClient->mergeEntity($collectionName, $entity, isset($options[self::VERIFY_ETAG]));
} catch(Zend_Service_WindowsAzure_Exception $e) {
throw new Zend_Cloud_DocumentService_Exception('Error on document update: '.$e->getMessage(), $e->getCode(), $e);
}
}
/**
* Delete document.
*
* @param mixed $document Document ID or Document object.
* @param array $options
* @return void
*/
public function deleteDocument($collectionName, $documentId, $options = null)
{
if ($documentId instanceof Zend_Cloud_DocumentService_Document) {
$documentId = $documentId->getId();
}
$documentId = $this->_validateDocumentId($documentId, $collectionName);
try {
$entity = new Zend_Service_WindowsAzure_Storage_DynamicTableEntity($documentId[0], $documentId[1]);
if (isset($options[self::VERIFY_ETAG])) {
$entity->setEtag($options[self::VERIFY_ETAG]);
}
$this->_storageClient->deleteEntity($collectionName, $entity, isset($options[self::VERIFY_ETAG]));
} catch(Zend_Service_WindowsAzure_Exception $e) {
if (strpos($e->getMessage(), "does not exist") === false) {
throw new Zend_Cloud_DocumentService_Exception('Error on document deletion: '.$e->getMessage(), $e->getCode(), $e);
}
}
}
/**
* Fetch single document by ID
*
* @param string $collectionName Collection name
* @param mixed $documentId Document ID, adapter-dependent
* @param array $options
* @return Zend_Cloud_DocumentService_Document
*/
public function fetchDocument($collectionName, $documentId, $options = null)
{
$documentId = $this->_validateDocumentId($documentId, $collectionName);
try {
$entity = $this->_storageClient->retrieveEntityById($collectionName, $documentId[0], $documentId[1]);
$documentClass = $this->getDocumentClass();
return new $documentClass($this->_resolveAttributes($entity), array($entity->getPartitionKey(), $entity->getRowKey()));
} catch (Zend_Service_WindowsAzure_Exception $e) {
if (strpos($e->getMessage(), "does not exist") !== false) {
return false;
}
throw new Zend_Cloud_DocumentService_Exception('Error on document fetch: '.$e->getMessage(), $e->getCode(), $e);
}
}
/**
* Query for documents stored in the document service. If a string is passed in
* $query, the query string will be passed directly to the service.
*
* @param string $collectionName Collection name
* @param string|Zend_Cloud_DocumentService_Adapter_WindowsAzure_Query $query
* @param array $options
* @return array Zend_Cloud_DocumentService_DocumentSet
*/
public function query($collectionName, $query, $options = null)
{
try {
if ($query instanceof Zend_Cloud_DocumentService_Adapter_WindowsAzure_Query) {
$entities = $this->_storageClient->retrieveEntities($query->assemble());
} else {
$entities = $this->_storageClient->retrieveEntities($collectionName, $query);
}
$documentClass = $this->getDocumentClass();
$resultSet = array();
foreach ($entities as $entity) {
$resultSet[] = new $documentClass(
$this->_resolveAttributes($entity),
array($entity->getPartitionKey(), $entity->getRowKey())
);
}
} catch(Zend_Service_WindowsAzure_Exception $e) {
throw new Zend_Cloud_DocumentService_Exception('Error on document query: '.$e->getMessage(), $e->getCode(), $e);
}
$setClass = $this->getDocumentSetClass();
return new $setClass($resultSet);
}
/**
* Create query statement
*
* @return Zend_Cloud_DocumentService_Query
*/
public function select($fields = null)
{
$queryClass = $this->getQueryClass();
if (!class_exists($queryClass)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($queryClass);
}
$query = new $queryClass();
$defaultClass = self::DEFAULT_QUERY_CLASS;
if (!$query instanceof $defaultClass) {
throw new Zend_Cloud_DocumentService_Exception('Query class must extend ' . self::DEFAULT_QUERY_CLASS);
}
$query->select($fields);
return $query;
}
/**
* Get the concrete service client
*
* @return Zend_Service_WindowsAzure_Storage_Table
*/
public function getClient()
{
return $this->_storageClient;
}
/**
* Resolve table values to attributes
*
* @param Zend_Service_WindowsAzure_Storage_TableEntity $entity
* @return array
*/
protected function _resolveAttributes(Zend_Service_WindowsAzure_Storage_TableEntity $entity)
{
$result = array();
foreach ($entity->getAzureValues() as $attr) {
$result[$attr->Name] = $attr->Value;
}
return $result;
}
/**
* Validate a partition or row key
*
* @param string $key
* @return void
* @throws Zend_Cloud_DocumentService_Exception
*/
protected function _validateKey($key)
{
if (preg_match('@[/#?' . preg_quote('\\') . ']@', $key)) {
throw new Zend_Cloud_DocumentService_Exception('Invalid partition or row key provided; must not contain /, \\, #, or ? characters');
}
}
/**
* Validate a composite key
*
* @param array $key
* @return throws Zend_Cloud_DocumentService_Exception
*/
protected function _validateCompositeKey(array $key)
{
if (2 != count($key)) {
throw new Zend_Cloud_DocumentService_Exception('Invalid document key provided; must contain exactly two elements: a PartitionKey and a RowKey');
}
foreach ($key as $k) {
$this->_validateKey($k);
}
}
/**
* Validate a document identifier
*
* If the identifier is an array containing a valid partition and row key,
* returns it. If the identifier is a string:
* - if a default partition key is present, it creates an identifier using
* that and the provided document ID
* - if a collection name is provided, it will use that for the partition key
* - otherwise, it's invalid
*
* @param array|string $documentId
* @param null|string $collectionName
* @return array
* @throws Zend_Cloud_DocumentService_Exception
*/
protected function _validateDocumentId($documentId, $collectionName = false)
{
if (is_array($documentId)) {
$this->_validateCompositeKey($documentId);
return $documentId;
}
if (!is_string($documentId)) {
throw new Zend_Cloud_DocumentService_Exception('Invalid document identifier; must be a string or an array');
}
$this->_validateKey($documentId);
if (null !== ($partitionKey = $this->getDefaultPartitionKey())) {
return array($partitionKey, $documentId);
}
if (null !== $collectionName) {
return array($collectionName, $documentId);
}
throw new Zend_Cloud_DocumentService_Exception('Cannot determine partition name; invalid document identifier');
}
/**
* Validate a document's fields for well-formedness
*
* Since Azure uses Atom, and fieldnames are included as part of XML
* element tag names, the field names must be valid XML names.
*
* @param Zend_Cloud_DocumentService_Document|array $document
* @return void
* @throws Zend_Cloud_DocumentService_Exception
*/
public function _validateFields($document)
{
if ($document instanceof Zend_Cloud_DocumentService_Document) {
$document = $document->getFields();
} elseif (!is_array($document)) {
throw new Zend_Cloud_DocumentService_Exception('Cannot inspect fields; invalid type provided');
}
foreach (array_keys($document) as $key) {
$this->_validateFieldKey($key);
}
}
/**
* Validate an individual field name for well-formedness
*
* Since Azure uses Atom, and fieldnames are included as part of XML
* element tag names, the field names must be valid XML names.
*
* While we could potentially normalize names, this could also lead to
* conflict with other field names -- which we should avoid. As such,
* invalid field names will raise an exception.
*
* @param string $key
* @return void
* @throws Zend_Cloud_DocumentService_Exception
*/
public function _validateFieldKey($key)
{
if (!preg_match('/^[_A-Za-z][-._A-Za-z0-9]*$/', $key)) {
throw new Zend_Cloud_DocumentService_Exception('Field keys must conform to XML names (^[_A-Za-z][-._A-Za-z0-9]*$); key "' . $key . '" does not match');
}
}
}