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1: /* ClassMatchFilter.java -- filter on class name (inclusive) 2: Copyright (C) 2005 Free Software Foundation 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: terms of your choice, provided that you also meet, for each linked 32: independent module, the terms and conditions of the license of that 33: module. An independent module is a module which is not derived from 34: or based on this library. If you modify this library, you may extend 35: this exception to your version of the library, but you are not 36: obligated to do so. If you do not wish to do so, delete this 37: exception statement from your version. */ 38: 39: 40: package gnu.classpath.jdwp.event.filters; 41: 42: import gnu.classpath.jdwp.event.Event; 43: import gnu.classpath.jdwp.exception.InvalidStringException; 44: 45: /** 46: * An event filter which includes events matching a 47: * specified class pattern (exact match or start/end with "*"). 48: * 49: * @author Keith Seitz (keiths@redhat.com) 50: */ 51: public class ClassMatchFilter 52: implements IEventFilter 53: { 54: // Pattern to match 55: private String _pattern; 56: 57: /** 58: * Constructs a new <code>ClassMatchFilter</code> 59: * 60: * @param pattern the pattern to use 61: * @throws InvalidStringException if pattern is invalid 62: */ 63: public ClassMatchFilter (String pattern) 64: throws InvalidStringException 65: { 66: int index = pattern.indexOf ('*'); 67: if (index != -1 && index != 0 && index != (pattern.length () - 1)) 68: { 69: // '*' must be first char or last char 70: throw new InvalidStringException ("pattern may be an exact match or " 71: + "start/end with \"*\""); 72: } 73: _pattern = pattern; 74: } 75: 76: /** 77: * Returns the pattern to be matched 78: * 79: * @return the pattern 80: */ 81: public String getPattern () 82: { 83: return _pattern; 84: } 85: 86: /** 87: * Does the given event match the filter? 88: * 89: * @param event the <code>Event</code> to scrutinize 90: */ 91: public boolean matches (Event event) 92: { 93: Object type = event.getParameter (Event.EVENT_CLASS); 94: if (type != null) 95: { 96: Class eventClass = (Class) type; 97: String name = eventClass.getName (); 98: 99: if (_pattern.startsWith ("*")) 100: return name.endsWith (_pattern.substring (1)); 101: else if (_pattern.endsWith ("*")) 102: { 103: int end = _pattern.length () - 1; 104: return name.startsWith (_pattern.substring (0, end)); 105: } 106: else 107: return name.matches (_pattern); 108: } 109: 110: return false; 111: } 112: }