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 ZOutputStream(OutputStream out)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 ZOutputStream(OutputStream out, int level)60 public ZOutputStream(OutputStream out, int level) throws IOException { 61 this(out, level, false); 62 } 63 ZOutputStream(OutputStream out, int level, boolean nowrap)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]; write(int b)73 public void write(int b) throws IOException { 74 buf1[0]=(byte)b; 75 write(buf1, 0, 1); 76 } 77 write(byte b[], int off, int len)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 getFlushMode()100 public int getFlushMode() { 101 return flush; 102 } 103 setFlushMode(int flush)104 public void setFlushMode(int flush) { 105 this.flush=flush; 106 } 107 finish()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 } end()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 } close()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 getTotalIn()145 public long getTotalIn() { 146 if(compress) return dos.getTotalIn(); 147 else return inflater.total_in; 148 } 149 getTotalOut()150 public long getTotalOut() { 151 if(compress) return dos.getTotalOut(); 152 else return inflater.total_out; 153 } 154 flush()155 public void flush() throws IOException { 156 out.flush(); 157 } 158 159 } 160