Mercurial > 510Connectbot

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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/ZInputStream.java@46c2115ae1c8
children
comparison
equal deleted inserted replaced
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 * ZInputStream
35 *
36 * @deprecated use DeflaterOutputStream or InflaterInputStream
37 */
38 @Deprecated
39 public class ZInputStream extends FilterInputStream {
40
41 protected int flush=JZlib.Z_NO_FLUSH;
42 protected boolean compress;
43 protected InputStream in=null;
44
45 protected Deflater deflater;
46 protected InflaterInputStream iis;
47
48 public ZInputStream(InputStream in) throws IOException {
49 this(in, false);
50 }
51 public ZInputStream(InputStream in, boolean nowrap) throws IOException {
52 super(in);
53 iis = new InflaterInputStream(in, nowrap);
54 compress=false;
55 }
56
57 public ZInputStream(InputStream in, int level) throws IOException {
58 super(in);
59 this.in=in;
60 deflater = new Deflater();
61 deflater.init(level);
62 compress=true;
63 }
64
65 private byte[] buf1 = new byte[1];
66 public int read() throws IOException {
67 if(read(buf1, 0, 1)==-1) return -1;
68 return(buf1[0]&0xFF);
69 }
70
71 private byte[] buf = new byte[512];
72
73 public int read(byte[] b, int off, int len) throws IOException {
74 if(compress){
75 deflater.setOutput(b, off, len);
76 while(true){
77 int datalen = in.read(buf, 0, buf.length);
78 if(datalen == -1) return -1;
79 deflater.setInput(buf, 0, datalen, true);
80 int err = deflater.deflate(flush);
81 if(deflater.next_out_index>0)
82 return deflater.next_out_index;
83 if(err == JZlib.Z_STREAM_END)
84 return 0;
85 if(err == JZlib.Z_STREAM_ERROR ||
86 err == JZlib.Z_DATA_ERROR){
87 throw new ZStreamException("deflating: "+deflater.msg);
88 }
89 }
90 }
91 else{
92 return iis.read(b, off, len);
93 }
94 }
95
96 public long skip(long n) throws IOException {
97 int len=512;
98 if(n<len)
99 len=(int)n;
100 byte[] tmp=new byte[len];
101 return((long)read(tmp));
102 }
103
104 public int getFlushMode() {
105 return flush;
106 }
107
108 public void setFlushMode(int flush) {
109 this.flush=flush;
110 }
111
112 public long getTotalIn() {
113 if(compress) return deflater.total_in;
114 else return iis.getTotalIn();
115 }
116
117 public long getTotalOut() {
118 if(compress) return deflater.total_out;
119 else return iis.getTotalOut();
120 }
121
122 public void close() throws IOException{
123 if(compress) deflater.end();
124 else iis.close();
125 }
126 }