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/*
* CloseIgnoringInputStream
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
package org.tukaani.xz;
import java.io.InputStream;
import java.io.FilterInputStream;
/**
* An {@code InputStream} wrapper whose {@code close()} does nothing.
* This is useful with raw decompressors if you want to call
* {@code close()} to release memory allocated from an {@link ArrayCache}
* but don't want to close the underlying {@code InputStream}.
* For example:
* <blockquote><pre>
* InputStream rawdec = new LZMA2InputStream(
* new CloseIgnoringInputStream(myInputStream),
* myDictSize, null, myArrayCache);
* doSomething(rawdec);
* rawdec.close(); // This doesn't close myInputStream.
* </pre></blockquote>
* <p>
* With {@link XZInputStream}, {@link SingleXZInputStream}, and
* {@link SeekableXZInputStream} you can use their {@code close(boolean)}
* method to avoid closing the underlying {@code InputStream}; with
* those classes {@code CloseIgnoringInputStream} isn't needed.
*
* @since 1.7
*/
public class CloseIgnoringInputStream extends FilterInputStream {
/**
* Creates a new {@code CloseIgnoringInputStream}.
*/
public CloseIgnoringInputStream(InputStream in) {
super(in);
}
/**
* This does nothing (doesn't call {@code in.close()}).
*/
public void close() {}
}
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