mirror of https://gitee.com/bigwinds/arangodb
173 lines
6.1 KiB
C++
173 lines
6.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief document wrapper utility functions
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2004-2013 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 triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#ifndef TRIAGENS_UTILS_DOCUMENT_WRAPPER_HELPER_H
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#define TRIAGENS_UTILS_DOCUMENT_WRAPPER_HELPER_H 1
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#include "Logger/Logger.h"
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#include "BasicsC/json.h"
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#include "VocBase/document-collection.h"
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#include "VocBase/primary-collection.h"
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namespace triagens {
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namespace arango {
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// -----------------------------------------------------------------------------
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// --SECTION-- class DocumentHelper
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// -----------------------------------------------------------------------------
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class DocumentWrapper {
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors / destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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private:
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DocumentWrapper (const DocumentWrapper&);
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DocumentWrapper& operator= (const DocumentWrapper&);
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public:
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DocumentWrapper (TRI_doc_mptr_t const* document, TRI_primary_collection_t* primary) {
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TRI_shaped_json_t shapedJson;
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TRI_EXTRACT_SHAPED_JSON_MARKER(shapedJson, document->_data);
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// get document as json
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_json = TRI_JsonShapedJson(primary->_shaper, &shapedJson);
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_zone = primary->_shaper->_memoryZone;
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}
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~DocumentWrapper () {
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if (_json) {
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TRI_FreeJson(_zone, _json);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- public methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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public:
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns true for arrays
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////////////////////////////////////////////////////////////////////////////////
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bool isArrayDocument () {
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return _json != 0 && _json->_type == TRI_JSON_ARRAY;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns then value of a boolean attribute or a default value
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////////////////////////////////////////////////////////////////////////////////
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bool getBooleanValue (string const& name, bool defaultValue) {
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TRI_json_t const* b = TRI_LookupArrayJson(_json, name.c_str());
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if (b != 0 && b->_type == TRI_JSON_BOOLEAN)
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{
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return b->_value._boolean;
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}
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return defaultValue;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns then value of a numeric attribute or a default value
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////////////////////////////////////////////////////////////////////////////////
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double getNumericValue (string const& name, double defaultValue) {
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TRI_json_t const* b = TRI_LookupArrayJson(_json, name.c_str());
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if (b != 0 && b->_type == TRI_JSON_NUMBER)
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{
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return b->_value._number;
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}
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return defaultValue;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns then value of a string attribute or a default value
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////////////////////////////////////////////////////////////////////////////////
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string getStringValue (string const& name, string const& defaultValue) {
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TRI_json_t const* b = TRI_LookupArrayJson(_json, name.c_str());
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if (b != 0 && b->_type == TRI_JSON_STRING)
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{
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return string(b->_value._string.data, b->_value._string.length-1);
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}
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return defaultValue;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- private
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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private:
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TRI_json_t* _json;
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TRI_memory_zone_t* _zone;
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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};
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}
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}
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#endif
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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