37 lines
844 B
Java
37 lines
844 B
Java
|
/*
|
||
|
|
* DeltaEncoder
|
||
|
|
*
|
||
|
|
* 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;
|
||
|
|
|
||
|
|
class DeltaEncoder extends DeltaCoder implements FilterEncoder {
|
||
|
|
private final DeltaOptions options;
|
||
|
|
private final byte[] props = new byte[1];
|
||
|
|
|
||
|
|
DeltaEncoder(DeltaOptions options) {
|
||
|
|
props[0] = (byte)(options.getDistance() - 1);
|
||
|
|
this.options = (DeltaOptions)options.clone();
|
||
|
|
}
|
||
|
|
|
||
|
|
public long getFilterID() {
|
||
|
|
return FILTER_ID;
|
||
|
|
}
|
||
|
|
|
||
|
|
public byte[] getFilterProps() {
|
||
|
|
return props;
|
||
|
|
}
|
||
|
|
|
||
|
|
public boolean supportsFlushing() {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
public FinishableOutputStream getOutputStream(FinishableOutputStream out) {
|
||
|
|
return options.getOutputStream(out);
|
||
|
|
}
|
||
|
|
}
|