mirror of https://gitee.com/bigwinds/arangodb
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2017 ArangoDB 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 Andrey Abramov
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/// @author Vasiliy Nabatchikov
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////////////////////////////////////////////////////////////////////////////////
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#include "Aql/AqlFunctionFeature.h"
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#include "Aql/Function.h"
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#include "ApplicationServerHelper.h"
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namespace arangodb {
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namespace iresearch {
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bool addFunction(
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arangodb::aql::AqlFunctionFeature& functions,
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arangodb::aql::Function const& function
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) {
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// check that a function by the given name is not registred to avoid
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// triggering an assert inside AqlFunctionFeature::add(...)
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if (getFunction(functions, function.name)) {
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return false;
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}
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functions.add(function);
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return true;
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}
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arangodb::aql::Function const* getFunction(
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arangodb::aql::AqlFunctionFeature& functions,
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std::string const& name
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) {
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// if a function cannot be found then return nullptr instead of throwing exception
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try {
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return functions.byName(name);
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} catch (arangodb::basics::Exception& e) {
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if (TRI_ERROR_QUERY_FUNCTION_NAME_UNKNOWN != e.code()) {
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throw; // not a missing function exception
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}
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}
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return nullptr;
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}
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} // iresearch
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} // arangodb
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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// -----------------------------------------------------------------------------
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