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267 lines
8.6 KiB
C++
267 lines
8.6 KiB
C++
/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SCARCHIVE_JSON_H
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#define SCARCHIVE_JSON_H
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#include <seiscomp/core/io.h>
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#include <rapidjson/document.h>
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#include <rapidjson/error/en.h>
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namespace Seiscomp {
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namespace IO {
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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/** \brief An archive using JSON streams
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*/
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class SC_SYSTEM_CORE_API JSONArchive : public Core::Archive {
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// ----------------------------------------------------------------------
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// Public data types
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// ----------------------------------------------------------------------
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public:
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typedef rapidjson::Document Document;
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typedef Document::ValueType Value;
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typedef Value::ConstMemberIterator ConstItr;
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typedef rapidjson::SizeType Size;
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// ----------------------------------------------------------------------
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// Xstruction
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// ----------------------------------------------------------------------
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public:
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//! Constructor
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JSONArchive();
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//! Constructor with predefined buffer and mode
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JSONArchive(std::streambuf* buf, bool isReading = true,
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int forceWriteVersion = -1);
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//! Destructor
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~JSONArchive();
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// ----------------------------------------------------------------------
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// Public Interface
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// ----------------------------------------------------------------------
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public:
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bool open(const char *file);
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bool open(std::streambuf*);
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//! Reads an archive from a rapidjson document value
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bool from(const Value*);
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//! Reads the archive from a string
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bool from(const char *str);
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//! Reads the archive from a string and allows optional insitu parsing
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//! which replaces the contents of the string (destructive).
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bool from(char *str, bool insitu = true);
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bool create(const char *file, bool writeVersion = true);
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bool create(std::streambuf*, bool writeVersion = true);
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bool create(std::ostream*, bool writeVersion = true);
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void setFormattedOutput(bool);
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//! Sets if a root object is wrapped around the serialized objects.
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//! Default is true.
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void setRootObject(bool);
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//! Implements derived virtual method
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virtual void close();
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// ----------------------------------------------------------------------
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// Read methods
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// ----------------------------------------------------------------------
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public:
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//! Reads an int8
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virtual void read(std::int8_t& value);
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//! Reads an int16
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virtual void read(std::int16_t& value);
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//! Reads an int32
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virtual void read(std::int32_t& value);
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//! Reads an int64
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virtual void read(std::int64_t& value);
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//! Reads a float
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virtual void read(float& value);
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//! Reads a double
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virtual void read(double& value);
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virtual void read(std::vector<char>& value);
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virtual void read(std::vector<int8_t>& value);
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virtual void read(std::vector<int16_t>& value);
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virtual void read(std::vector<int32_t>& value);
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virtual void read(std::vector<int64_t>& value);
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virtual void read(std::vector<float>& value);
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virtual void read(std::vector<double>& value);
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virtual void read(std::vector<std::string>& value);
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virtual void read(std::vector<Core::Time>& value);
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//! Reads a complex float
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virtual void read(std::complex<float>& value);
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//! Reads a complex double
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virtual void read(std::complex<double>& value);
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//! Reads a boolean
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virtual void read(bool& value);
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//! Reads a vector of complex doubles
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virtual void read(std::vector<std::complex<double> >& value);
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//! Reads a string
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virtual void read(std::string& value);
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//! Reads a time
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virtual void read(Seiscomp::Core::Time& value);
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// ----------------------------------------------------------------------
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// Write methods
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// ----------------------------------------------------------------------
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public:
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//! Writes an int8
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virtual void write(std::int8_t value);
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//! Writes an int16
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virtual void write(std::int16_t value);
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//! Writes an int32
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virtual void write(std::int32_t value);
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//! Writes an int64
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virtual void write(std::int64_t value);
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//! Writes a float
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virtual void write(float value);
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//! Writes a double
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virtual void write(double value);
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virtual void write(std::vector<char>& value);
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virtual void write(std::vector<int8_t>& value);
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virtual void write(std::vector<int16_t>& value);
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virtual void write(std::vector<int32_t>& value);
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virtual void write(std::vector<int64_t>& value);
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virtual void write(std::vector<float>& value);
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virtual void write(std::vector<double>& value);
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virtual void write(std::vector<std::string>& value);
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virtual void write(std::vector<Core::Time>& value);
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//! Writes a complex float
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virtual void write(std::complex<float>& value);
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//! Writes a complex double
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virtual void write(std::complex<double>& value);
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//! Writes a boolean
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virtual void write(bool value);
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//! Writes a vector of complex doubles
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virtual void write(std::vector<std::complex<double> >& value);
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//! Writes a string
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virtual void write(std::string& value);
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//! Writes a time
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virtual void write(Seiscomp::Core::Time& value);
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// ----------------------------------------------------------------------
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// Protected interface
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// ----------------------------------------------------------------------
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protected:
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//! Implements derived virtual method
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bool locateObjectByName(const char* name, const char* targetClass, bool nullable);
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bool locateNextObjectByName(const char* name, const char* targetClass);
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void locateNullObjectByName(const char* name, const char* targetClass, bool first);
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void readSequence();
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void writeSequence(int size);
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//! Implements derived virtual method
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std::string determineClassName();
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//! Implements derived virtual method
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virtual void setClassName(const char* className);
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//! Implements derived virtual method
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void serialize(RootType* object);
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//! Implements derived virtual method
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void serialize(SerializeDispatcher&);
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// ----------------------------------------------------------------------
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// Private interface
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// ----------------------------------------------------------------------
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private:
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void parseVersion();
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void createDocument(bool writeVersion);
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template <typename T>
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void _serialize(T &target);
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void preAttrib();
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void postAttrib();
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// ----------------------------------------------------------------------
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// Implementation
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// ----------------------------------------------------------------------
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private:
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const Value *findAttrib(const Value *node, const char* name);
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const Value *findTag(const Value *node, Size &index,
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const char* name, const char* targetClass);
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const Value *findNextTag(const Value *node, Size &index,
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const char* name, const char* targetClass);
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template <typename T>
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void readIntVector(std::vector<T> &value);
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template <typename T>
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void writeVector(std::vector<T> &value);
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private:
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int _forceWriteVersion;
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bool _deleteBufOnClose;
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bool _deleteStreamOnClose;
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bool _rootObject;
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bool _nullable;
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std::string _tagname;
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int _indent;
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int _sequenceSize;
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bool _isSequence;
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int _attribIndex;
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bool _isClass;
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bool _formattedOutput;
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std::streambuf *_buf;
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std::ostream *_os;
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Document *_document;
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const Value *_objectLocation;
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const Value *_current;
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const Value *_currentArray;
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Size _currentIndex;
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};
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}
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}
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#endif
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