115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//characters [1] Type: [] []
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//characters [2] Type: [] []
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//[ae] [\"{a}]
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//[oe] [\"{o}]
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//[ue] [\"{u}]
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//[ss] [{\ss}]
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//[Ae] [\"{A}]
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//[Oe] [\"{O}]
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//[Ue] [\"{U}]
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//[x] [$\times $]
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//[->] [$\rightarrow $]
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//[toc] [\tableofcontents]
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[1] Implementation of tree functions for JSON objects.
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[toc]
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1 JNode class definition
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*/
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#ifndef __JTREE_H__
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#define __JTREE_H__
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#include "Algebras/Relation-C++/RelationAlgebra.h"
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#include "QueryProcessor.h"
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#include "AlgebraManager.h"
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#include "StandardTypes.h"
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#include "Algebras/TupleIdentifier/TupleIdentifier.h"
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#include "RTuple.h"
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#include "Symbols.h"
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#include "ListUtils.h"
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#include "Stream.h"
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#include "TupleDescr.h"
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#include "VTuple.h"
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#include "VTHelpers.h"
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#include "JTree.h"
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#include <string>
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#include <vector>
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namespace cstream {
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typedef enum {jROOT, jOBJECT, jARRAY, jSTRING,
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jNUMBER, jBOOL, jNULL, jERROR} JsonType;
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// typedef enum {nlRECORD, nlVECTOR, nlTEXT, nlINT, nlREAL, nlBOOL} NLType;
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/*
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1. Node class definition.
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*/
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class JNode {
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public:
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JNode(const JsonType _type, const std::string _key,
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const std::string _value, JNode* _parent);
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void addChild(JNode* p);
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void print(int level=0);
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void buildTree();
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void deleteRec();
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std::string createTupleDescrString(bool forceReal=false);
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std::string getTupleType(bool forceReal=false);
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Tuple* buildTupleTree();
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Attribute* getAttribute(bool forceReal=false);
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JsonType getValueType(std::string jsonString, int* index, int* max);
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std::string getValue(JsonType valueType, std::string jsonString,
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int* index, int* max);
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std::string getString(bool keySafe, std::string jsonString,
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int* index, int* max);
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std::string getNumber(std::string jsonString, int* index, int* max);
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std::string getBool(std::string jsonString, int* index, int* max);
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std::string getNull(std::string jsonString, int* index, int* max);
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std::string getObject(std::string jsonString, int* index, int* max);
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std::string getArray(std::string jsonString, int* index, int* max);
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void toSeperator(std::string jsonString, int* index, int* max);
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private:
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std::string _key;
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std::string _value;
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JsonType _type;
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JNode* _parent;
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std::vector<JNode*> _children;
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};
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} /* namespace cstream */
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#endif
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