/*
 * 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_OUTPUTSTREAM_H
#define _LOG4CXX_HELPERS_OUTPUTSTREAM_H

#include <log4cxx/helpers/objectimpl.h>
#ifdef LOG4CXX_MULTI_PROCESS
#include <apr_file_io.h>
#endif

namespace log4cxx
{

        namespace helpers {
          class ByteBuffer;

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

          protected:
                  OutputStream();
                  virtual ~OutputStream();

          public:
                  virtual void close(Pool& p) = 0;
                  virtual void flush(Pool& p) = 0;
                  virtual void write(ByteBuffer& buf, Pool& p) = 0;
#ifdef LOG4CXX_MULTI_PROCESS
                  virtual apr_file_t* getFilePtr();
                  virtual OutputStream& getFileOutPutStreamPtr();
#endif

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

          LOG4CXX_PTR_DEF(OutputStream);
        } // namespace helpers

}  //namespace log4cxx

#endif //_LOG4CXX_HELPERS_OUTPUTSTREAM_H