/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
/*
Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the distribution.
3. The names of the authors may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jcraft.jzlib;
import java.io.*;
/**
* ZOutputStream
*
* @deprecated use DeflaterOutputStream or InflaterInputStream
*/
@
Deprecated
public class
ZOutputStream extends
FilterOutputStream {
protected int
bufsize=512;
protected int
flush=
JZlib.
Z_NO_FLUSH;
protected byte[]
buf=new byte[
bufsize];
protected boolean
compress;
protected
OutputStream out;
private boolean
end=false;
private
DeflaterOutputStream dos;
private
Inflater inflater;
public
ZOutputStream(
OutputStream out) throws
IOException {
super(
out);
this.
out=
out;
inflater = new
Inflater();
inflater.
init();
compress=false;
}
public
ZOutputStream(
OutputStream out, int
level) throws
IOException {
this(
out,
level, false);
}
public
ZOutputStream(
OutputStream out, int
level, boolean
nowrap) throws
IOException {
super(
out);
this.
out=
out;
Deflater deflater = new
Deflater(
level,
nowrap);
dos = new
DeflaterOutputStream(
out,
deflater);
compress=true;
}
private byte[]
buf1 = new byte[1];
public void
write(int
b) throws
IOException {
buf1[0]=(byte)
b;
write(
buf1, 0, 1);
}
public void
write(byte
b[], int
off, int
len) throws
IOException {
if(
len==0) return;
if(
compress){
dos.
write(
b,
off,
len);
}
else {
inflater.
setInput(
b,
off,
len, true);
int
err =
JZlib.
Z_OK;
while(
inflater.
avail_in>0){
inflater.
setOutput(
buf, 0,
buf.length);
err =
inflater.
inflate(
flush);
if(
inflater.
next_out_index>0)
out.
write(
buf, 0,
inflater.
next_out_index);
if(
err !=
JZlib.
Z_OK)
break;
}
if(
err !=
JZlib.
Z_OK)
throw new
ZStreamException("inflating: "+
inflater.
msg);
return;
}
}
public int
getFlushMode() {
return
flush;
}
public void
setFlushMode(int
flush) {
this.
flush=
flush;
}
public void
finish() throws
IOException {
int
err;
if(
compress){
int
tmp =
flush;
int
flush =
JZlib.
Z_FINISH;
try{
write("".
getBytes(), 0, 0);
}
finally {
flush =
tmp; }
}
else{
dos.
finish();
}
flush();
}
public synchronized void
end() {
if(
end) return;
if(
compress){
try {
dos.
finish(); } catch(
Exception e){}
}
else{
inflater.
end();
}
end=true;
}
public void
close() throws
IOException {
try{
try{
finish();}
catch (
IOException ignored) {}
}
finally{
end();
out.
close();
out=null;
}
}
public long
getTotalIn() {
if(
compress) return
dos.
getTotalIn();
else return
inflater.
total_in;
}
public long
getTotalOut() {
if(
compress) return
dos.
getTotalOut();
else return
inflater.
total_out;
}
public void
flush() throws
IOException {
out.
flush();
}
}