xml.h

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// Copyright (C) 2001,2002 Open Source Telecom Corporation.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// 
// As a special exception to the GNU General Public License, permission is 
// granted for additional uses of the text contained in its release 
// of Common C++.
// 
// The exception is that, if you link the Common C++ library with other files
// to produce an executable, this does not by itself cause the
// resulting executable to be covered by the GNU General Public License.
// Your use of that executable is in no way restricted on account of
// linking the Common C++ library code into it.
//
// This exception does not however invalidate any other reasons why
// the executable file might be covered by the GNU General Public License.
//
// This exception applies only to the code released under the 
// name Common C++.  If you copy code from other releases into a copy of
// Common C++, as the General Public License permits, the exception does
// not apply to the code that you add in this way.  To avoid misleading
// anyone as to the status of such modified files, you must delete
// this exception notice from them.
// 
// If you write modifications of your own for Common C++, it is your choice
// whether to permit this exception to apply to your modifications.
// If you do not wish that, delete this exception notice.

#ifndef CCXX_XML_H_
#define CCXX_XML_H_

#ifndef CCXX_CONFIG_H_
#include <cc++/config.h>
#endif

#ifndef CCXX_THREAD_H_
#include <cc++/thread.h>
#endif

#ifndef CCXX_SLOG_H_
#include <cc++/slog.h>
#endif

#include <fstream>
#include <iostream>
#ifdef HAVE_SSTREAM
#include <sstream>
#else
#include <strstream>
#endif

#ifdef  CCXX_NAMESPACES
namespace ost {
#endif

#ifdef COMMON_XML_PARSING

#ifdef  HAVE_LIBXML

class CCXX_CLASS_EXPORT XMLStream
{
public:
        virtual bool open(const char *resource)
                {return true;};

        virtual void close(void)
                {return;};

        virtual Slog::Level getLogging(void)
                {return Slog::levelCritical;};

        virtual void comment(const unsigned char *text)
                {return;};

        virtual int read(unsigned char *buffer, int len) = 0;

        virtual void characters(const unsigned char *text, unsigned len) = 0;

        virtual void startDocument(void)
                {return;};

        virtual void endDocument(void)
                {return;};

        virtual void startElement(const unsigned char *name, const unsigned char **attr) = 0;

        virtual void endElement(const unsigned char *name) = 0;

        bool parse(const char *resource = NULL);
};

class CCXX_CLASS_EXPORT XMLRPC : public XMLStream
{
private:
#ifdef HAVE_SSTREAM
        std::stringstream strBuf;
#else
        char *buffer;
        std::strstream *oldStrBuf;
        size_t bufSize;
#endif
        bool structFlag;
        bool reply, fault;
        unsigned array;
        
protected:
        virtual bool post(const char *resource, const char *msg) = 0;
        
        void begStruct(void);

public:
        XMLRPC(size_t bufferSize = 512);
        
        virtual ~XMLRPC();

        void begArray(void);

        void endArray(void);
        
        void invoke(const char *method);

        void response(bool fault);
        
        void addParam(bool value);

        void addMember(const char *name, bool value);

        void addParam(long value);

        void addMember(const char *name, long value);

        void addParam(const char *string);

        void addMember(const char *name, const char *value);

        void endStruct(void);
        
        bool send(const char *resource);
};

#else
#error "XML support has been selected, but libxml could not be found"
#endif // ifdef HAVE_XML

#else
#error "XML support is not available."
#endif // ifdef COMMON_XML_PARSING
        
#ifdef  CCXX_NAMESPACES
};
#endif

#endif

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