1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 package proguard.ant; 22 23 import org.apache.tools.ant.BuildException; 24 import org.apache.tools.ant.types.DataType; 25 import proguard.Configuration; 26 27 /** 28 * This DataType represents a reference to a ProGuard configuration in Ant. 29 * 30 * @author Eric Lafortune 31 */ 32 public class ConfigurationElement extends DataType 33 { 34 /** 35 * Adds the contents of this configuration task to the given configuration. 36 * @param configuration the configuration to be extended. 37 */ appendTo(Configuration configuration)38 public void appendTo(Configuration configuration) 39 { 40 // Get the referenced element. 41 if (!isReference()) 42 { 43 throw new BuildException("Nested element <configuration> must have a refid attribute"); 44 } 45 46 ConfigurationTask configurationTask = 47 (ConfigurationTask)getCheckedRef(ConfigurationTask.class, 48 ConfigurationTask.class.getName()); 49 50 // Append the referenced configuration entries to the given configuration. 51 configurationTask.appendTo(configuration); 52 } 53 } 54