1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard.classfile.io; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport java.io.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This class delegates its method calls to the corresponding DataInput methods, 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * converting its IOExceptions to RuntimeExceptions. 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratofinal class RuntimeDataInput 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final DataInput dataInput; 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public RuntimeDataInput(DataInput dataInput) 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.dataInput = dataInput; 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Methods delegating to DataInput. 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public boolean readBoolean() 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readBoolean(); 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public byte readByte() 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readByte(); 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public char readChar() 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readChar(); 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public double readDouble() 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readDouble(); 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public float readFloat() 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readFloat(); 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void readFully(byte[] b) 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato dataInput.readFully(b); 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 111b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 112b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 113b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 115b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 116b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void readFully(byte[] b, int off, int len) 117b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 118b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 119b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 120b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato dataInput.readFully(b, off, len); 121b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 122b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 123b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 124b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 125b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 126b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 127b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 128b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public int readInt() 129b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 130b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 131b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 132b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readInt(); 133b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 134b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 135b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 136b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 137b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 138b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 139b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 140b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public String readLine() 141b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 142b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 143b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 144b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readLine(); 145b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 146b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 147b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 148b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 149b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 150b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 151b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 152b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public long readLong() 153b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 154b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 155b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 156b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readLong(); 157b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 158b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 159b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 160b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 161b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 162b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 163b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 164b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public short readShort() 165b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 166b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 167b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 168b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readShort(); 169b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 170b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 171b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 172b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 173b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 174b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 175b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 176b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public int readUnsignedByte() 177b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 178b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 179b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 180b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readUnsignedByte(); 181b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 182b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 183b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 184b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 185b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 186b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 187b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 188b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public int readUnsignedShort() 189b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 190b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 191b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 192b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readUnsignedShort(); 193b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 194b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 195b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 196b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 197b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 198b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 199b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 200b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public String readUTF() 201b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 202b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 203b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 204b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.readUTF(); 205b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 206b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 207b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 208b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 209b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 210b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 211b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 212b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public int skipBytes(int n) 213b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 214b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato try 215b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 216b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return dataInput.skipBytes(n); 217b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 218b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato catch (IOException ex) 219b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 220b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato throw new RuntimeException(ex.getMessage()); 221b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 222b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 223b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 224