mirror of https://gitee.com/bigwinds/arangodb
133 lines
3.5 KiB
C++
133 lines
3.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief legends for shaped JSON objects to make them self-contained
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///
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/// @file
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/// Declaration for legends.
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///
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/// DISCLAIMER
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///
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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 triAGENS GmbH, Cologne, Germany
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///
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/// @author Max Neunhoeffer
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/// @author Copyright 2014-2014, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#ifndef TRIAGENS_SHAPED_JSON_LEGENDS_H
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#define TRIAGENS_SHAPED_JSON_LEGENDS_H 1
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#include "BasicsC/common.h"
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#include "Basics/Common.h"
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#include "BasicsC/structures.h"
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#include "Basics/StringBuffer.h"
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#include "ShapedJson/shaped-json.h"
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#include "ShapedJson/json-shaper.h"
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namespace triagens {
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namespace basics {
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class JsonLegend {
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public:
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JsonLegend (TRI_shaper_t* shaper)
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: _shaper(shaper), _att_data(TRI_UNKNOWN_MEM_ZONE),
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_shape_data(TRI_UNKNOWN_MEM_ZONE) {
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}
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~JsonLegend () {
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};
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void reset (TRI_shaper_t* shaper) {
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clear();
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_shaper = shaper;
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}
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void clear ();
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int addAttributeId (TRI_shape_aid_t aid);
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int addShape (TRI_shaped_json_t const* sh_json) {
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return addShape(sh_json->_sid, sh_json->_data.data,
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sh_json->_data.length);
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}
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int addShape (TRI_shape_sid_t sid, TRI_blob_t const* blob) {
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return addShape(sid, blob->data, blob->length);
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}
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int addShape (TRI_shape_sid_t sid, char const* data, uint32_t len);
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size_t getSize ();
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void dump (void* buf);
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private:
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TRI_shaper_t* _shaper;
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struct AttributeId {
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TRI_shape_aid_t aid;
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TRI_shape_size_t offset;
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AttributeId (TRI_shape_aid_t a, TRI_shape_size_t o)
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: aid(a), offset(o) {}
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};
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static struct AttributeComparerClass {
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bool operator() (AttributeId const& a, AttributeId const& b) {
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return a.aid < b.aid;
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}
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} AttributeComparerObject;
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struct Shape {
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TRI_shape_sid_t sid;
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TRI_shape_size_t offset;
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TRI_shape_size_t size;
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Shape (TRI_shape_sid_t sid, TRI_shape_size_t o, TRI_shape_size_t siz)
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: sid(sid), offset(o), size(siz) {}
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};
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static struct ShapeComparerClass {
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bool operator() (Shape const& a, Shape const& b) {
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return a.sid < b.sid;
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}
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} ShapeComparerObject;
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unordered_set<TRI_shape_aid_t> _have_attribute;
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vector<AttributeId> _attribs;
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StringBuffer _att_data;
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unordered_set<TRI_shape_sid_t> _have_shape;
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vector<Shape> _shapes;
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StringBuffer _shape_data;
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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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