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arangodb/lib/Rest/VppResponse.cpp

86 lines
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C++

///////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 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 ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
/// @author Achim Brandt
////////////////////////////////////////////////////////////////////////////////
#include "VppResponse.h"
#include <velocypack/Builder.h>
#include <velocypack/Dumper.h>
#include <velocypack/Options.h>
#include <velocypack/velocypack-aliases.h>
#include "Basics/Exceptions.h"
#include "Basics/StringBuffer.h"
#include "Basics/StringUtils.h"
#include "Basics/VPackStringBufferAdapter.h"
#include "Basics/VelocyPackDumper.h"
#include "Basics/tri-strings.h"
#include "Meta/conversion.h"
#include "Rest/VppRequest.h"
using namespace arangodb;
using namespace arangodb::basics;
bool VppResponse::HIDE_PRODUCT_HEADER = false;
VppResponse::VppResponse(ResponseCode code, uint64_t id)
: GeneralResponse(code), _header(nullptr), _messageId(id) {
_contentType = ContentType::VPACK;
_connectionType = rest::CONNECTION_KEEP_ALIVE;
}
void VppResponse::reset(ResponseCode code) {
_responseCode = code;
_headers.clear();
_connectionType = rest::CONNECTION_KEEP_ALIVE;
_contentType = ContentType::VPACK;
_generateBody = false; // payload has to be set
}
VPackMessageNoOwnBuffer VppResponse::prepareForNetwork() {
// initalize builder with vpackbuffer. then we do not need to
// steal the header and can avoid the shared pointer
VPackBuilder builder;
builder.openArray();
builder.add(VPackValue(int(1)));
builder.add(VPackValue(int(2))); // 2 == response
builder.add(
VPackValue(static_cast<int>(meta::underlyingValue(_responseCode))));
builder.close();
_header = builder.steal();
if (_vpackPayloads.empty()) {
if (_generateBody) {
LOG_TOPIC(INFO, Logger::REQUESTS)
<< "Response should generate body but no Data available";
_generateBody = false; // no body availalbe
}
return VPackMessageNoOwnBuffer(VPackSlice(_header->data()),
VPackSlice::noneSlice(), _messageId,
_generateBody);
} else {
return VPackMessageNoOwnBuffer(VPackSlice(_header->data()),
VPackSlice(_vpackPayloads.front().data()),
_messageId, _generateBody);
}
}