src/main/decaf/util/zip/DeflaterOutputStream.h

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/*
 * 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 _DECAF_UTIL_ZIP_DEFLATEROUTPUTSTREAM_H_
#define _DECAF_UTIL_ZIP_DEFLATEROUTPUTSTREAM_H_

#include <decaf/util/Config.h>

#include <decaf/io/FilterOutputStream.h>
#include <decaf/io/IOException.h>
#include <decaf/util/zip/Deflater.h>

#include <vector>

namespace decaf {
namespace util {
namespace zip {

    class DECAF_API DeflaterOutputStream : public decaf::io::FilterOutputStream {
    protected:

        Deflater* deflater;

        std::vector<unsigned char> buf;

        bool ownDeflater;
        bool isDone;

        static const std::size_t DEFAULT_BUFFER_SIZE;

    private:

        DeflaterOutputStream( const DeflaterOutputStream& );
        DeflaterOutputStream& operator= ( const DeflaterOutputStream& );

    public:

        DeflaterOutputStream( decaf::io::OutputStream* outputStream, bool own = false );

        DeflaterOutputStream( decaf::io::OutputStream* outputStream, Deflater* deflater,
                              bool own = false, bool ownDeflater = false );

        DeflaterOutputStream( decaf::io::OutputStream* outputStream, Deflater* deflater,
                              int bufferSize, bool own = false, bool ownDeflater = false );

        virtual ~DeflaterOutputStream();

        virtual void finish();

        virtual void close();

    protected:

        virtual void doWriteByte( unsigned char value );

        virtual void doWriteArrayBounded( const unsigned char* buffer, int size,
                                          int offset, int length );

    protected:

        virtual void deflate();

    };

}}}

#endif /* _DECAF_UTIL_ZIP_DEFLATEROUTPUTSTREAM_H_ */

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