/*
* 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.
*/
package org.apache.commons.compress.compressors.lzma;
import java.io.IOException;
import java.io.InputStream;
import org.tukaani.xz.LZMAInputStream;
import org.apache.commons.compress.compressors.CompressorInputStream;
/**
* LZMA decompressor.
* @since 1.6
*/
public class LZMACompressorInputStream extends CompressorInputStream {
private final InputStream in;
/**
* Creates a new input stream that decompresses LZMA-compressed data
* from the specified input stream.
*
* @param inputStream where to read the compressed data
*
* @throws IOException if the input is not in the .lzma format,
* the input is corrupt or truncated, the .lzma
* headers specify sizes that are not supported
* by this implementation, or the underlying
* <code>inputStream</code> throws an exception
*/
public LZMACompressorInputStream(InputStream inputStream)
throws IOException {
in = new LZMAInputStream(inputStream);
}
/** {@inheritDoc} */
@Override
public int read() throws IOException {
int ret = in.read();
count(ret == -1 ? 0 : 1);
return ret;
}
/** {@inheritDoc} */
@Override
public int read(byte[] buf, int off, int len) throws IOException {
int ret = in.read(buf, off, len);
count(ret);
return ret;
}
/** {@inheritDoc} */
@Override
public long skip(long n) throws IOException {
return in.skip(n);
}
/** {@inheritDoc} */
@Override
public int available() throws IOException {
return in.available();
}
/** {@inheritDoc} */
@Override
public void close() throws IOException {
in.close();
}
}