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<?php
/**
* @author Robin J. Rogge <rrogge@bigpoint.net>
* @link http://www.pradosoft.com/
* @copyright 2010 Bigpoint GmbH
* @license http://www.pradosoft.com/license/
* @since 3.2
* @package Prado\Util
*/
namespace Prado\Util;
/**
* TRpcClient class
*
* Note: When using setIsNotification(true), *every* following request is also
* considered to be a notification until you use setIsNotification(false).
*
* Usage:
*
* First, you can use the factory:
* <pre>
* $_rpcClient = TRpcClient::create('xml', 'http://host/server');
* $_result = $_rpcClient->remoteMethodName($param, $otherParam);
* </pre>
*
* or as oneliner:
* <pre>
* $_result = TRpcClient::create('json', 'http://host/server')->remoteMethod($param, ...);
* </pre>
*
* Second, you can also use the specific implementation directly:
* <pre>
* $_rpcClient = new TXmlRpcClient('http://host/server');
* $_result = $_rpcClient->remoteMethod($param, ...);
* </pre>
*
* or as oneliner:
* <pre>
* $_result = TXmlRpcClient('http://host/server')->hello();
* </pre>
*
* @author Robin J. Rogge <rrogge@bigpoint.net>
* @version $Id$
* @package Prado\Util
* @since 3.2
*/
class TRpcClient extends TApplicationComponent
{
/**
* @var string url of the RPC server
*/
private $_serverUrl;
/**
* @var boolean whether the request is a notification and therefore should not care about the result (default: false)
*/
private $_isNotification = false;
// magics
/**
* @param string url to RPC server
* @param boolean whether requests are considered to be notifications (completely ignoring the response) (default: false)
*/
public function __construct($serverUrl, $isNotification = false)
{
$this->_serverUrl = $serverUrl;
$this->_isNotification = TPropertyValue::ensureBoolean($isNotification);
}
// methods
/**
* Creates an instance of the requested RPC client type
* @return TRpcClient instance
* @throws TApplicationException if an unsupported RPC client type was specified
*/
public static function create($type, $serverUrl, $isNotification = false)
{
if(($_handler = constant('TRpcClientTypesEnumerable::'.strtoupper($type))) === null)
throw new TApplicationException('rpcclient_unsupported_handler');
return new $_handler($serverUrl, $isNotification);
}
/**
* Creates a stream context resource
* @param mixed $content
* @param string $contentType mime type
*/
protected function createStreamContext($content, $contentType)
{
return stream_context_create(array(
'http' => array(
'method' => 'POST',
'header' => "Content-Type: {$contentType}",
'content' => $content
)
));
}
/**
* Performs the actual request
* @param string RPC server URL
* @param array payload data
* @param string request mime type
*/
protected function performRequest($serverUrl, $payload, $mimeType)
{
if(($_response = @file_get_contents($serverUrl, false, $this->createStreamContext($payload, $mimeType))) === false)
throw new TRpcClientRequestException('Request failed ("'.$http_response_header[0].'")');
return $_response;
}
// getter/setter
/**
* @return boolean whether requests are considered to be notifications (completely ignoring the response)
*/
public function getIsNotification()
{
return $this->_isNotification;
}
/**
* @param string boolean whether the requests are considered to be notifications (completely ignoring the response) (default: false)
*/
public function setIsNotification($bool)
{
$this->_isNotification = TPropertyValue::ensureBoolean($bool);
}
/**
* @return string url of the RPC server
*/
public function getServerUrl()
{
return $this->_serverUrl;
}
/**
* @param string url of the RPC server
*/
public function setServerUrl($value)
{
$this->_serverUrl = $value;
}
}
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