mirror of https://gitee.com/bigwinds/arangodb
110 lines
3.4 KiB
C++
110 lines
3.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Christoph Uhde
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_REST_VST_MESSAGE_H
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#define ARANGODB_REST_VST_MESSAGE_H 1
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#include <velocypack/Buffer.h>
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#include <velocypack/Options.h>
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#include <velocypack/Slice.h>
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#include <velocypack/StringRef.h>
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#include <velocypack/velocypack-aliases.h>
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#include <iterator>
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#include <vector>
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#include "Basics/Common.h"
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#include "Basics/VelocyPackHelper.h"
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namespace arangodb {
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namespace rest {
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struct VstInputMessage {
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VstInputMessage() : _id(0), _buffer() {}
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// no copy
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VstInputMessage(VstInputMessage const& other) = delete;
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// just move
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VstInputMessage(VstInputMessage&& other)
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: _id(other._id), _buffer(std::move(other._buffer)) {}
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void set(uint64_t id, VPackBuffer<uint8_t>&& buff) {
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_id = id;
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_buffer = buff;
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}
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/// @brief message header, validated
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velocypack::Slice header() const {
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if (_buffer.size() > 0) {
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return VPackSlice(_buffer.data());
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}
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return velocypack::Slice::emptyArraySlice();
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};
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/// message payload, not validated
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arangodb::velocypack::StringRef payload() const {
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size_t len = velocypack::Slice(_buffer.data()).byteSize();
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if (_buffer.size() > len) {
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return arangodb::velocypack::StringRef(reinterpret_cast<const char*>(_buffer.data() + len),
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_buffer.size() - len);
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}
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return arangodb::velocypack::StringRef();
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}
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size_t payloadSize() const {
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size_t len = velocypack::Slice(_buffer.data()).byteSize();
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return _buffer.size() - len;
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}
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private:
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uint64_t _id; // id zero signals invalid state
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velocypack::Buffer<uint8_t> _buffer;
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};
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struct VPackMessageNoOwnBuffer {
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// cppcheck-suppress *
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VPackMessageNoOwnBuffer(velocypack::Slice head, std::vector<velocypack::Slice>&& payloads,
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uint64_t id, bool generateBody = true)
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: _header(head), _payloads(std::move(payloads)), _id(id), _generateBody(generateBody) {}
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VPackMessageNoOwnBuffer(velocypack::Slice head, velocypack::Slice payload,
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uint64_t id, bool generateBody = true)
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: _header(head), _payloads(), _id(id), _generateBody(generateBody) {
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_payloads.push_back(payload);
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}
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velocypack::Slice firstPayload() {
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if (_payloads.size() && _generateBody) {
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return _payloads.front();
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}
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return velocypack::Slice::noneSlice();
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}
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std::vector<velocypack::Slice> payloads() { return _payloads; }
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velocypack::Slice _header;
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std::vector<velocypack::Slice> _payloads;
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uint64_t _id;
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bool _generateBody;
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};
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} // namespace rest
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} // namespace arangodb
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#endif
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