001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.commons.compress.compressors.zstandard;
019
020
021import java.io.IOException;
022import java.io.OutputStream;
023
024import com.github.luben.zstd.ZstdOutputStream;
025import org.apache.commons.compress.compressors.CompressorOutputStream;
026
027/**
028 * {@link CompressorOutputStream} implementation to create Zstandard encoded stream.
029 * Library relies on <a href="https://github.com/luben/zstd-jni/">Zstandard JNI</a>
030 *
031 * @since 1.16
032 */
033public class ZstdCompressorOutputStream extends CompressorOutputStream {
034
035    private final ZstdOutputStream encOS;
036
037    public ZstdCompressorOutputStream(final OutputStream out) throws IOException {
038        this.encOS = new ZstdOutputStream(out);
039    }
040
041    @Override
042    public void close() throws IOException {
043        encOS.close();
044    }
045
046    @Override
047    public void write(final int b) throws IOException {
048        encOS.write(b);
049    }
050
051    @Override
052    public void write(final byte[] buf, final int off, final int len) throws IOException {
053        encOS.write(buf, off, len);
054    }
055
056    @Override
057    public String toString() {
058        return encOS.toString();
059    }
060
061    @Override
062    public void flush() throws IOException {
063        encOS.flush();
064    }
065}