/*

 * 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: LocalFileFormatTarget.hpp 568078 2007-08-21 11:43:25Z amassari $

 */

#ifndef LocalFileFormatTarget_HEADER_GUARD_

#define LocalFileFormatTarget_HEADER_GUARD_

#include <xercesc/framework/XMLFormatter.hpp>

XERCES_CPP_NAMESPACE_BEGIN

class XMLPARSER_EXPORT LocalFileFormatTarget : public XMLFormatTarget {

public:

    /** @name constructors and destructor */

    //@{

    LocalFileFormatTarget

    (

        const XMLCh* const

        , MemoryManager* const  manager = XMLPlatformUtils::fgMemoryManager

    );

    LocalFileFormatTarget

    (

        const char* const

        , MemoryManager* const  manager = XMLPlatformUtils::fgMemoryManager

    );

    ~LocalFileFormatTarget();

    //@}

    // -----------------------------------------------------------------------

    //  Implementations of the format target interface

    // -----------------------------------------------------------------------

    virtual void writeChars(const XMLByte* const toWrite

                          , const unsigned int   count

                          , XMLFormatter* const  formatter);

    virtual void flush();

private:

    // -----------------------------------------------------------------------

    //  Unimplemented methods.

    // -----------------------------------------------------------------------

    LocalFileFormatTarget(const LocalFileFormatTarget&);

    LocalFileFormatTarget& operator=(const LocalFileFormatTarget&);

    // -----------------------------------------------------------------------

    //  Private helpers

    // -----------------------------------------------------------------------

    void flushBuffer();

    bool insureCapacity(const unsigned int extraNeeded);

    // -----------------------------------------------------------------------

    //  Private data members

    //

    //  fSource

    //      The source file that we represent. The FileHandle type is defined

    //      per platform.

    //

    //  fDataBuf

    //      The pointer to the buffer data. Its always

    //      one larger than fCapacity, to leave room for the null terminator.

    //

    //  fIndex

    //      The current index into the buffer, as characters are appended

    //      to it. If its zero, then the buffer is empty.

    //

    //  fCapacity

    //      The current capacity of the buffer. Its actually always one

    //      larger, to leave room for the null terminator.

    // -----------------------------------------------------------------------

    FileHandle      fSource;

    XMLByte*        fDataBuf;

    unsigned int    fIndex;

    unsigned int    fCapacity;

    MemoryManager*  fMemoryManager;

};

XERCES_CPP_NAMESPACE_END

#endif