mirror of https://gitee.com/bigwinds/arangodb
227 lines
7.5 KiB
C++
227 lines
7.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief batch request handler
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2004-2012 triagens GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "RestBatchHandler.h"
|
|
|
|
#include "Basics/StringUtils.h"
|
|
#include "Basics/MutexLocker.h"
|
|
#include "HttpServer/HttpServer.h"
|
|
#include "ProtocolBuffers/HttpRequestProtobuf.h"
|
|
|
|
using namespace std;
|
|
using namespace triagens::basics;
|
|
using namespace triagens::rest;
|
|
using namespace triagens::arango;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- constructors and destructors
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @addtogroup ArangoDB
|
|
/// @{
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief constructor
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
RestBatchHandler::RestBatchHandler (HttpRequest* request, TRI_vocbase_t* vocbase)
|
|
: RestVocbaseBaseHandler(request, vocbase),
|
|
_outputMessages(new PB_ArangoMessage) {
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief destructor
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
RestBatchHandler::~RestBatchHandler () {
|
|
if (_outputMessages) {
|
|
// delete protobuf message
|
|
delete _outputMessages;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- Handler methods
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @addtogroup ArangoDB
|
|
/// @{
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// {@inheritDoc}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool RestBatchHandler::isDirect () {
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// {@inheritDoc}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
string const& RestBatchHandler::queue () {
|
|
static string const client = "STANDARD";
|
|
|
|
return client;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// {@inheritDoc}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Handler::status_e RestBatchHandler::execute() {
|
|
// extract the request type
|
|
HttpRequest::HttpRequestType type = _request->requestType();
|
|
string contentType = StringUtils::tolower(StringUtils::trim(_request->header("content-type")));
|
|
|
|
if (type != HttpRequest::HTTP_REQUEST_POST || contentType != getContentType()) {
|
|
generateError(HttpResponse::BAD,
|
|
TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid request data sent");
|
|
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
|
|
if (! _inputMessages.ParseFromArray(_request->body(), _request->bodySize())) {
|
|
generateError(HttpResponse::BAD,
|
|
TRI_ERROR_HTTP_BAD_PARAMETER,
|
|
"invalid request message data sent");
|
|
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
|
|
|
|
// loop over the input messages once to set up the output structures without concurrency
|
|
for (int i = 0; i < _inputMessages.messages_size(); ++i) {
|
|
_outputMessages->add_messages();
|
|
|
|
// create a handler for each input part
|
|
const PB_ArangoBatchMessage* inputMessage = _inputMessages.mutable_messages(i);
|
|
HttpRequestProtobuf* request = new HttpRequestProtobuf(*inputMessage);
|
|
|
|
if (! request) {
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
|
|
// handler is responsible for freeing the request later
|
|
HttpHandler* handler = _server->createHandler(request);
|
|
|
|
if (! handler) {
|
|
delete request;
|
|
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
|
|
Handler::status_e status = Handler::HANDLER_FAILED;
|
|
do {
|
|
try {
|
|
status = handler->execute();
|
|
}
|
|
catch (triagens::basics::TriagensError const& ex) {
|
|
handler->handleError(ex);
|
|
}
|
|
catch (std::exception const& ex) {
|
|
triagens::basics::InternalError err(ex, __FILE__, __LINE__);
|
|
|
|
handler->handleError(err);
|
|
}
|
|
catch (...) {
|
|
triagens::basics::InternalError err("executeDirectHandler", __FILE__, __LINE__);
|
|
handler->handleError(err);
|
|
}
|
|
}
|
|
while (status == Handler::HANDLER_REQUEUE);
|
|
|
|
if (status == Handler::HANDLER_DONE) {
|
|
PB_ArangoBatchMessage* batch = _outputMessages->mutable_messages(i);
|
|
handler->getResponse()->write(batch);
|
|
}
|
|
|
|
delete handler;
|
|
|
|
if (status == Handler::HANDLER_FAILED) {
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
}
|
|
|
|
size_t messageSize = _outputMessages->ByteSize();
|
|
|
|
// allocate output buffer
|
|
char* output = (char*) TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, sizeof(char) * messageSize, false);
|
|
if (output == NULL) {
|
|
generateError(HttpResponse::SERVER_ERROR,
|
|
TRI_ERROR_OUT_OF_MEMORY,
|
|
"out of memory");
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
|
|
_response = new HttpResponse(HttpResponse::OK);
|
|
_response->setContentType(getContentType());
|
|
|
|
// content of message is binary, cannot use null-terminated std::string
|
|
if (!_outputMessages->SerializeToArray(output, messageSize)) {
|
|
TRI_Free(TRI_UNKNOWN_MEM_ZONE, output);
|
|
delete _response;
|
|
|
|
generateError(HttpResponse::SERVER_ERROR, TRI_ERROR_OUT_OF_MEMORY, "out of memory");
|
|
return Handler::HANDLER_FAILED;
|
|
}
|
|
|
|
_response->body().appendText(output, messageSize);
|
|
TRI_Free(TRI_UNKNOWN_MEM_ZONE, output);
|
|
|
|
// success
|
|
return Handler::HANDLER_DONE;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief return the required content type string
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
string const& RestBatchHandler::getContentType () {
|
|
static string const contentType = "application/x-protobuf";
|
|
|
|
return contentType;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
|
|
// End:
|