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arangodb/arangod/Indexes/IndexFactory.cpp

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////////////////////////////////////////////////////////////////////////////////
/// 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 Michael Hackstein
////////////////////////////////////////////////////////////////////////////////
#include "IndexFactory.h"
#include "Basics/Exceptions.h"
#include "Basics/StringUtils.h"
#include "Basics/VelocyPackHelper.h"
#include "Indexes/Index.h"
#include <velocypack/Slice.h>
using namespace arangodb;
TRI_idx_iid_t IndexFactory::validateSlice(arangodb::velocypack::Slice info,
bool generateKey,
bool isClusterConstructor) {
if (!info.isObject()) {
THROW_ARANGO_EXCEPTION(TRI_ERROR_BAD_PARAMETER);
}
TRI_idx_iid_t iid = 0;
arangodb::velocypack::Slice value = info.get("id");
if (value.isString()) {
iid = basics::StringUtils::uint64(value.copyString());
} else if (value.isNumber()) {
iid =
basics::VelocyPackHelper::getNumericValue<TRI_idx_iid_t>(info, "id", 0);
} else if (!generateKey) {
// In the restore case it is forbidden to NOT have id
THROW_ARANGO_EXCEPTION_MESSAGE(
TRI_ERROR_INTERNAL, "cannot restore index without index identifier");
}
if (iid == 0 && !isClusterConstructor) {
// Restore is not allowed to generate an id
TRI_ASSERT(generateKey);
iid = arangodb::Index::generateId();
}
return iid;
}