charsetdecoder.h

/*
 * 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.
 */

#ifndef _LOG4CXX_HELPERS_CHARSETDECODER_H
#define _LOG4CXX_HELPERS_CHARSETDECODER_H

#include <log4cxx/helpers/objectimpl.h>

namespace log4cxx
{
namespace helpers
{
class CharsetDecoder;
LOG4CXX_PTR_DEF(CharsetDecoder);
class ByteBuffer;


class LOG4CXX_EXPORT CharsetDecoder : public ObjectImpl
{
    public:
        DECLARE_ABSTRACT_LOG4CXX_OBJECT(CharsetDecoder)
        BEGIN_LOG4CXX_CAST_MAP()
        LOG4CXX_CAST_ENTRY(CharsetDecoder)
        END_LOG4CXX_CAST_MAP()
    protected:
        CharsetDecoder();
    public:
        virtual ~CharsetDecoder();

        static CharsetDecoderPtr getDefaultDecoder();
        static CharsetDecoderPtr getDecoder(const LogString& charset);

        static CharsetDecoderPtr getUTF8Decoder();
        static CharsetDecoderPtr getISOLatinDecoder();



        virtual log4cxx_status_t decode(ByteBuffer& in,
            LogString& out) = 0;

        inline static bool isError(log4cxx_status_t stat)
        {
            return (stat != 0);
        }

    private:
        CharsetDecoder(const CharsetDecoder&);
        CharsetDecoder& operator=(const CharsetDecoder&);
        static CharsetDecoder* createDefaultDecoder();
};

} // namespace helpers
}  //namespace log4cxx

#endif //_LOG4CXX_HELPERS_CHARSETENCODER_H