/*
 * 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_WRITER_H
#define _LOG4CXX_HELPERS_WRITER_H

#include <log4cxx/helpers/objectimpl.h>
#include <log4cxx/helpers/outputstream.h>

namespace log4cxx
{

namespace helpers
{

/**
*   Abstract class for writing to character streams.
*/
class LOG4CXX_EXPORT Writer : public ObjectImpl
{
    public:
        DECLARE_ABSTRACT_LOG4CXX_OBJECT(Writer)
        BEGIN_LOG4CXX_CAST_MAP()
        LOG4CXX_CAST_ENTRY(Writer)
        END_LOG4CXX_CAST_MAP()

    protected:
        Writer();
        virtual ~Writer();

    public:
        virtual void close(Pool& p) = 0;
        virtual void flush(Pool& p) = 0;
        virtual void write(const LogString& str, Pool& p) = 0;
#ifdef LOG4CXX_MULTI_PROCESS
        virtual OutputStreamPtr getOutPutStreamPtr();
#endif

    private:
        Writer(const Writer&);
        Writer& operator=(const Writer&);
};

LOG4CXX_PTR_DEF(Writer);
} // namespace helpers

}  //namespace log4cxx

#endif //_LOG4CXX_HELPERS_WRITER_H