public function handleRequest()
{
try {
$this->createProviders();
$this->_dataServiceHost->validateQueryParameters();
} catch (\Exception $exception) {
ErrorHandler::handleException($exception, $this);
//TODO we are done call HTTPOUTPUT and remove exit
exit;
}
$ObjectModelInstance = null;
try {
$uriProcessor = null;
$uriProcessor = UriProcessor::process($this);
$this->serializeResult($uriProcessor->getRequestDescription(), $uriProcessor);
} catch (\Exception $exception) {
ErrorHandler::handleException($exception, $this);
//TODO we are done call HTTPOUTPUT and remove exit
exit;
}
}
/**
* Top-level handler invoked by Dispatcher against any request to this
* service. This method will hand over request processing task to other
* functions which process the request, set required headers and Response
* stream (if any in Atom/Json format) in
* WebOperationContext::Current()::OutgoingWebResponseContext.
* Once this function returns, dispatcher uses global WebOperationContext
* to write out the request response to client.
* This function will perform the following operations:
* (1) Check whether the top level service class implements
* IServiceProvider which means the service is a custom service, in
* this case make sure the top level service class implements
* IDataServiceMetaDataProvider and IDataServiceQueryProvider.
* These are the minimal interfaces that a custom service to be
* implemented in order to expose its data as OData. Save reference to
* These interface implementations.
* NOTE: Here we will ensure only providers for IDSQP and IDSMP. The
* IDSSP will be ensured only when there is an GET request on MLE/Named
* stream.
*
* (2). Invoke 'InitializeService' method of top level service for
* collecting the configuration rules set by the developer for this
* service.
*
* (3). Invoke the Uri processor to process the request URI. The uri
* processor will do the following:
* (a). Validate the request uri syntax using OData uri rules
* (b). Validate the request using metadata of this service
* (c). Parse the request uri and using, IDataServiceQueryProvider
* implementation, fetches the resources pointed by the uri
* if required
* (d). Build a RequestDescription which encapsulate everything
* related to request uri (e.g. type of resource, result
* etc...)
* (3). Invoke handleRequest2 for further processing
*
* @return void
*/
public function handleRequest()
{
try {
$this->createProviders();
$this->_dataServiceHost->validateQueryParameters();
$requestMethod = $this->getOperationContext()->incomingRequest()->getMethod();
if ($requestMethod !== ODataConstants::HTTP_METHOD_GET) {
ODataException::createNotImplementedError(Messages::dataServiceOnlyReadSupport($requestMethod));
}
} catch (\Exception $exception) {
ErrorHandler::handleException($exception, $this);
// Return to dispatcher for writing serialized exception
return;
}
$uriProcessor = null;
try {
$uriProcessor = UriProcessor::process($this);
$requestDescription = $uriProcessor->getRequestDescription();
$this->serializeResult($requestDescription, $uriProcessor);
} catch (\Exception $exception) {
ErrorHandler::handleException($exception, $this);
// Return to dispatcher for writing serialized exception
return;
}
// Return to dispatcher for writing result
}