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 * originally based on software copyright (c) 1999, International
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/**
 * $Id: Iconv400TransService.hpp,v 1.2 2000/09/28 22:42:45 aruna1 Exp $
 */

#ifndef ICONV400TRANSSERVICE_HPP
#define ICONV400TRANSSERVICE_HPP

#include <util/Mutexes.hpp>
#include <util/TransService.hpp>
#include <qlg.h>

struct UConverter;

class XMLUTIL_EXPORT Iconv400TransService : public XMLTransService
{
public :
    // -----------------------------------------------------------------------
    //  Public, static methods
    // -----------------------------------------------------------------------


    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    Iconv400TransService();
    ~Iconv400TransService();


    // -----------------------------------------------------------------------
    //  Implementation of the virtual transcoding service API
    // -----------------------------------------------------------------------
    virtual int compareIString
    (
        const   XMLCh* const    comp1
        , const XMLCh* const    comp2
    );

    virtual int compareNIString
    (
        const   XMLCh* const    comp1
        , const XMLCh* const    comp2
        , const unsigned int    maxChars
    );

    virtual const XMLCh* getId() const;

    virtual bool isSpace(const XMLCh toCheck) const;

    virtual XMLLCPTranscoder* makeNewLCPTranscoder();

    virtual bool supportsSrcOfs() const;

    virtual void upperCase(XMLCh* const toUpperCase) const;


protected :
    // -----------------------------------------------------------------------
    //  Protected virtual methods
    // -----------------------------------------------------------------------
    virtual XMLTranscoder* makeNewXMLTranscoder
    (
        const   XMLCh* const            encodingName
        ,       XMLTransService::Codes& resValue
        , const unsigned int            blockSize
    );


private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    Iconv400TransService(const Iconv400TransService&);
    void operator=(const Iconv400TransService&);

    XMLCh toUnicodeUpper(XMLCh toupper) const;
    Qlg_CCSID_ReqCtlBlk_T convertCtlblk; 

};



class XMLUTIL_EXPORT Iconv400Transcoder : public XMLTranscoder
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    Iconv400Transcoder
    (
        const   XMLCh* const        encodingName
        ,       UConverter* const   toAdopt
        , const unsigned int        blockSize
    );
    ~Iconv400Transcoder();

    virtual unsigned int transcodeFrom
    (
        const   XMLByte* const          srcData
        , const unsigned int            srcCount
        ,       XMLCh* const            toFill
        , const unsigned int            maxChars
        ,       unsigned int&           bytesEaten
        ,       unsigned char* const    charSizes
    );

    virtual unsigned int transcodeTo
    (
        const   XMLCh* const    srcData
        , const unsigned int    srcCount
        ,       XMLByte* const  toFill
        , const unsigned int    maxBytes
        ,       unsigned int&   charsEaten
        , const UnRepOpts       options
    );

    virtual bool canTranscodeTo
    (
        const   unsigned int    toCheck
    )   const;

    // -----------------------------------------------------------------------
    //  Implementation of the virtual transcoder interface
    // -----------------------------------------------------------------------

    virtual XMLCh transcodeOne
    (
        const   XMLByte* const  srcData
        , const unsigned int    srcBytes
        ,       unsigned int&   bytesEaten
    );

    virtual unsigned int transcodeXML
    (
        const   XMLByte* const          srcData
        , const unsigned int            srcCount
        ,       XMLCh* const            toFill
        , const unsigned int            maxChars
        ,       unsigned int&           bytesEaten
        ,       unsigned char* const    charSizes
    );



private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    Iconv400Transcoder();
    Iconv400Transcoder(const Iconv400Transcoder&);
    void operator=(const Iconv400Transcoder&);


    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fConverter
    //      This is a pointer to the Iconv400 converter that this transcoder
    //      uses.
    //
    //  fFixed
    //      This is set to true if the encoding is a fixed size one. This
    //      can be used to optimize some operations.
    //
    //  fSrcOffsets
    //      This is an array of longs, which are allocated to the size of
    //      the trancoding block (if any) indicated in the ctor. It is used
    //      to get the character offsets from Iconv400, which are then translated
    //      into an array of char sizes for return.
    // -----------------------------------------------------------------------
    UConverter*     fConverter;
    bool            fFixed;
    long*           fSrcOffsets;

};


class XMLUTIL_EXPORT Iconv400LCPTranscoder : public XMLLCPTranscoder
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    Iconv400LCPTranscoder(UConverter* const toAdopt);
    ~Iconv400LCPTranscoder();


    // -----------------------------------------------------------------------
    //  Implementation of the virtual transcoder interface
    // -----------------------------------------------------------------------
    virtual unsigned int calcRequiredSize(const char* const srcText);

    virtual unsigned int calcRequiredSize(const XMLCh* const srcText);

    virtual char* transcode(const XMLCh* const toTranscode);

    virtual XMLCh* transcode(const char* const toTranscode);

    virtual bool transcode
    (
        const   char* const     toTranscode
        ,       XMLCh* const    toFill
        , const unsigned int    maxChars
    );

    virtual bool transcode
    (
        const   XMLCh* const    toTranscode
        ,       char* const     toFill
        , const unsigned int    maxChars
    );



private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    Iconv400LCPTranscoder();
    Iconv400LCPTranscoder(const Iconv400LCPTranscoder&);
    void operator=(const Iconv400LCPTranscoder&);


    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fConverter
    //      This is a pointer to the Iconv converter that this transcoder
    //      uses.
    //
    //  fMutex
    //      We have to synchronize threaded calls to the converter.
    // -----------------------------------------------------------------------
    UConverter*     fConverter;
    XMLMutex        fMutex;
};

#endif
