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arangodb/arangod/VocBase/ManagedDocumentResult.cpp

69 lines
2.2 KiB
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 Jan Steemann
////////////////////////////////////////////////////////////////////////////////
#include "ManagedDocumentResult.h"
#include "Aql/AqlValue.h"
#include <velocypack/Builder.h>
#include <velocypack/Slice.h>
#include <velocypack/velocypack-aliases.h>
using namespace arangodb;
void ManagedDocumentResult::setUnmanaged(uint8_t const* vpack, LocalDocumentId const& documentId) {
_string.clear();
_vpack = const_cast<uint8_t*>(vpack);
_localDocumentId = documentId;
_managed = false;
}
void ManagedDocumentResult::setManaged(uint8_t const* vpack, LocalDocumentId const& documentId) {
_string.assign(reinterpret_cast<char const*>(vpack), VPackSlice(vpack).byteSize());
_vpack = nullptr;
_localDocumentId = documentId;
_managed = true;
}
void ManagedDocumentResult::setManagedAfterStringUsage(LocalDocumentId const& documentId) {
_vpack = nullptr;
_localDocumentId = documentId;
_managed = true;
}
void ManagedDocumentResult::addToBuilder(velocypack::Builder& builder, bool allowExternals) const {
uint8_t const* vpack;
if (_managed) {
vpack = reinterpret_cast<uint8_t const*>(_string.data());
} else {
vpack = _vpack;
}
TRI_ASSERT(vpack != nullptr);
auto slice = velocypack::Slice(vpack);
TRI_ASSERT(!slice.isExternal());
if (allowExternals && canUseInExternal()) {
builder.addExternal(slice.begin());
} else {
builder.add(slice);
}
}