/**
* @see FileBackend::fileExists()
*/
function doFileExists( array $params ) {die();
// TODO: Merely renamed this functino from fileExists. Check if more is neccessarey
// TODO: Off topic here: Prepare function might call some internal function which can be overridden.
list( $srcCont, $srcRel ) = $this->resolveStoragePath( $params['src'] );
if ( $srcRel === null ) {
return false; // invalid storage path
}
$exists = $this->storageClient->blobExists( $srcCont, $srcRel );
return $exists;
}
/**
* Get configuration for a specific role instance
*
* @param string $roleInstance Role instance name, can be found in $_SERVER['RdRoleId'] when hosted on Windows Azure.
* @return Microsoft_WindowsAzure_Diagnostics_ConfigurationInstance
* @throws Microsoft_WindowsAzure_Diagnostics_Exception
*/
public function getConfigurationForRoleInstance($roleInstance = null)
{
if (is_null($roleInstance)) {
throw new Microsoft_WindowsAzure_Diagnostics_Exception('Role instance should be specified. Try reading $_SERVER[\'RdRoleId\'] for this information if the application is hosted on Windows Azure Fabric or Development Fabric.');
}
if ($this->_blobStorageClient->blobExists($this->_controlContainer, $roleInstance)) {
$configurationInstance = new Microsoft_WindowsAzure_Diagnostics_ConfigurationInstance();
$configurationInstance->loadXml($this->_blobStorageClient->getBlobData($this->_controlContainer, $roleInstance));
return $configurationInstance;
}
return new Microsoft_WindowsAzure_Diagnostics_ConfigurationInstance();
}
/**
* @see FileBackend::doCreateInternal()
*/
function doCreateInternal(array $params)
{
$status = Status::newGood();
list($dstCont, $dstRel) = $this->resolveStoragePath($params['dst']);
if ($dstRel === null) {
$status->fatal('backend-fail-invalidpath', $params['dst']);
return $status;
}
if (empty($params['overwrite'])) {
//Blob should not be overridden
// Check if the destination object already exists
if ($this->storageClient->blobExists($dstCont, $dstRel)) {
$status->fatal('backend-fail-alreadyexists', $params['dst']);
return $status;
}
}
// Actually create the object
try {
$this->storageClient->putBlobData($dstCont, $dstRel, $params['content']);
} catch (Exception $e) {
$status->fatal('backend-fail-internal');
}
return $status;
}
