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}