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1: /* ExceptionOnlyFilter.java -- filter for excetions by caught/uncaught and type 2: Copyright (C) 2005, 2006 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.InvalidClassException; 44: import gnu.classpath.jdwp.id.ReferenceTypeId; 45: 46: /** 47: * Restricts reported exceptions by their class and whether they are caught 48: * or uncaught. 49: * 50: * This modifier can be used with exception event kinds only. 51: * 52: * @author Keith Seitz (keiths@redhat.com) 53: */ 54: public class ExceptionOnlyFilter 55: implements IEventFilter 56: { 57: private ReferenceTypeId _refId; 58: private boolean _caught; 59: private boolean _uncaught; 60: 61: /** 62: * Constructs a new ExceptionOnlyFilter 63: * 64: * @param refId ID of the exception to report(null for all exceptions) 65: * @param caught Report caught exceptions 66: * @param uncaught Report uncaught exceptions 67: * @throws InvalidClassException if refid is invalid 68: */ 69: public ExceptionOnlyFilter (ReferenceTypeId refId, boolean caught, 70: boolean uncaught) 71: throws InvalidClassException 72: { 73: if (refId != null && refId.getReference().get() == null) 74: throw new InvalidClassException(refId.getId()); 75: 76: _refId = refId; 77: _caught = caught; 78: _uncaught = uncaught; 79: } 80: 81: /** 82: * Returns the exception class to report (<code>null</code> for all) 83: * 84: * @return the class's ID 85: */ 86: public ReferenceTypeId getType () 87: { 88: return _refId; 89: } 90: 91: 92: /** 93: * Does the given event match the filter? 94: * 95: * @param event the <code>Event</code> to scrutinize 96: */ 97: public boolean matches(Event event) 98: { 99: boolean classMatch = true; 100: 101: // if not allowing all exceptions check if the exception matches 102: if (_refId != null) 103: { 104: try 105: { 106: Class klass 107: = (Class) event.getParameter(Event.EVENT_EXCEPTION_CLASS); 108: classMatch = klass == _refId.getType(); 109: } 110: catch (InvalidClassException ex) 111: { 112: classMatch = false; 113: } 114: } 115: 116: // check against the caught and uncaught options 117: Boolean caught 118: = (Boolean) event.getParameter(Event.EVENT_EXCEPTION_CAUGHT); 119: 120: return classMatch && ((caught.booleanValue()) ? _caught : _uncaught); 121: } 122: 123: }