/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * $Id: Iconv390TransService.hpp 568078 2007-08-21 11:43:25Z amassari $
 */

#ifndef ICONV390TRANSSERVICE_HPP
#define ICONV390TRANSSERVICE_HPP

#include <xercesc/util/TransService.hpp>
#include <xercesc/util/Mutexes.hpp>
#include <iconv.h>

XERCES_CPP_NAMESPACE_BEGIN

/* Max encoding name in characters. */
#define UCNV_MAX_CONVERTER_NAME_LENGTH 60
typedef struct iconvconverter {
   struct iconvconverter *nextconverter;
   char                   name [UCNV_MAX_CONVERTER_NAME_LENGTH];
   XMLMutex               fMutex;
   iconv_t                fIconv390Descriptor;
   int                    usecount;
} iconvconverter_t;

class XMLUTIL_EXPORT Iconv390TransService : public XMLTransService
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    Iconv390TransService();
    ~Iconv390TransService();


    // -----------------------------------------------------------------------
    //  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;
    virtual void lowerCase(XMLCh* const toLowerCase) const;

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


private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    Iconv390TransService(const Iconv390TransService&);
    Iconv390TransService& operator=(const Iconv390TransService&);
};

class XMLUTIL_EXPORT Iconv390LCPTranscoder : public XMLLCPTranscoder
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    Iconv390LCPTranscoder();
    Iconv390LCPTranscoder(iconvconverter_t* const toAdopt);
    ~Iconv390LCPTranscoder();

    // -----------------------------------------------------------------------
    //  Implementation of the virtual transcoder interface
    // -----------------------------------------------------------------------
    virtual unsigned int calcRequiredSize(const char* const srcText
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);

    virtual unsigned int calcRequiredSize(const XMLCh* const srcText
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);

    virtual char* transcode(const XMLCh* const toTranscode);
    virtual char* transcode(const XMLCh* const toTranscode,
                            MemoryManager* const manager);

    virtual bool transcode
    (
        const   XMLCh* const    toTranscode
        ,       char* const     toFill
        , const unsigned int    maxBytes
        , MemoryManager* const  manager = XMLPlatformUtils::fgMemoryManager
    );

    virtual XMLCh* transcode(const char* const toTranscode);
    virtual XMLCh* transcode(const char* const toTranscode,
                             MemoryManager* const manager);

    virtual bool transcode
    (
        const   char* const     toTranscode
        ,       XMLCh* const    toFill
        , const unsigned int    maxChars
        , MemoryManager* const  manager = XMLPlatformUtils::fgMemoryManager
    );


private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    Iconv390LCPTranscoder(const Iconv390LCPTranscoder&);
    Iconv390LCPTranscoder& operator=(const Iconv390LCPTranscoder&);
    iconvconverter_t *converter;
};

XERCES_CPP_NAMESPACE_END

#endif