org.tukaani.xz.CountingOutputStream Maven / Gradle / Ivy
/*
* CountingOutputStream
*
* Author: Lasse Collin
*
* 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.OutputStream;
import java.io.IOException;
/**
* Counts the number of bytes written to an output stream.
*
* The finish method does nothing.
* This is FinishableOutputStream instead
* of OutputStream solely because it allows
* using this as the output stream for a chain of raw filters.
*/
class CountingOutputStream extends FinishableOutputStream {
private final OutputStream out;
private long size = 0;
public CountingOutputStream(OutputStream out) {
this.out = out;
}
public void write(int b) throws IOException {
out.write(b);
if (size >= 0)
++size;
}
public void write(byte[] b, int off, int len) throws IOException {
out.write(b, off, len);
if (size >= 0)
size += len;
}
public void flush() throws IOException {
out.flush();
}
public void close() throws IOException {
out.close();
}
public long getSize() {
return size;
}
}