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comparison app/src/main/java/com/jcraft/jzlib/ZOutputStream.java @ 438:d29cce60f393

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migrate from Eclipse to Android Studio
author Carl Byington <carl@five-ten-sg.com>
date Thu, 03 Dec 2015 11:23:55 -0800
parents src/com/jcraft/jzlib/ZOutputStream.java@46c2115ae1c8
children
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437:208b31032318 438:d29cce60f393
1 /* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
2 /*
3 Copyright (c) 2011 ymnk, JCraft,Inc. All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
7
8 1. Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10
11 2. Redistributions in binary form must reproduce the above copyright
12 notice, this list of conditions and the following disclaimer in
13 the documentation and/or other materials provided with the distribution.
14
15 3. The names of the authors may not be used to endorse or promote products
16 derived from this software without specific prior written permission.
17
18 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
21 INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
22 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
24 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 package com.jcraft.jzlib;
31 import java.io.*;
32
33 /**
34 * ZOutputStream
35 *
36 * @deprecated use DeflaterOutputStream or InflaterInputStream
37 */
38 @Deprecated
39 public class ZOutputStream extends FilterOutputStream {
40
41 protected int bufsize=512;
42 protected int flush=JZlib.Z_NO_FLUSH;
43 protected byte[] buf=new byte[bufsize];
44 protected boolean compress;
45
46 protected OutputStream out;
47 private boolean end=false;
48
49 private DeflaterOutputStream dos;
50 private Inflater inflater;
51
52 public ZOutputStream(OutputStream out) throws IOException {
53 super(out);
54 this.out=out;
55 inflater = new Inflater();
56 inflater.init();
57 compress=false;
58 }
59
60 public ZOutputStream(OutputStream out, int level) throws IOException {
61 this(out, level, false);
62 }
63
64 public ZOutputStream(OutputStream out, int level, boolean nowrap) throws IOException {
65 super(out);
66 this.out=out;
67 Deflater deflater = new Deflater(level, nowrap);
68 dos = new DeflaterOutputStream(out, deflater);
69 compress=true;
70 }
71
72 private byte[] buf1 = new byte[1];
73 public void write(int b) throws IOException {
74 buf1[0]=(byte)b;
75 write(buf1, 0, 1);
76 }
77
78 public void write(byte b[], int off, int len) throws IOException {
79 if(len==0) return;
80 if(compress){
81 dos.write(b, off, len);
82 }
83 else {
84 inflater.setInput(b, off, len, true);
85 int err = JZlib.Z_OK;
86 while(inflater.avail_in>0){
87 inflater.setOutput(buf, 0, buf.length);
88 err = inflater.inflate(flush);
89 if(inflater.next_out_index>0)
90 out.write(buf, 0, inflater.next_out_index);
91 if(err != JZlib.Z_OK)
92 break;
93 }
94 if(err != JZlib.Z_OK)
95 throw new ZStreamException("inflating: "+inflater.msg);
96 return;
97 }
98 }
99
100 public int getFlushMode() {
101 return flush;
102 }
103
104 public void setFlushMode(int flush) {
105 this.flush=flush;
106 }
107
108 public void finish() throws IOException {
109 int err;
110 if(compress){
111 int tmp = flush;
112 int flush = JZlib.Z_FINISH;
113 try{
114 write("".getBytes(), 0, 0);
115 }
116 finally { flush = tmp; }
117 }
118 else{
119 dos.finish();
120 }
121 flush();
122 }
123 public synchronized void end() {
124 if(end) return;
125 if(compress){
126 try { dos.finish(); } catch(Exception e){}
127 }
128 else{
129 inflater.end();
130 }
131 end=true;
132 }
133 public void close() throws IOException {
134 try{
135 try{finish();}
136 catch (IOException ignored) {}
137 }
138 finally{
139 end();
140 out.close();
141 out=null;
142 }
143 }
144
145 public long getTotalIn() {
146 if(compress) return dos.getTotalIn();
147 else return inflater.total_in;
148 }
149
150 public long getTotalOut() {
151 if(compress) return dos.getTotalOut();
152 else return inflater.total_out;
153 }
154
155 public void flush() throws IOException {
156 out.flush();
157 }
158
159 }