/* ClassMatchFilter.java -- filter on class name (inclusive) Copyright (C) 2005 Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ package gnu.classpath.jdwp.event.filters; import gnu.classpath.jdwp.event.Event; import gnu.classpath.jdwp.exception.InvalidStringException; import gnu.classpath.jdwp.exception.InvalidClassException; import gnu.classpath.jdwp.id.ReferenceTypeId; /** * An event filter which includes events matching a * specified class pattern (exact match or start/end with "*"). * * @author Keith Seitz (keiths@redhat.com) */ public class ClassMatchFilter implements IEventFilter { // Pattern to match private String _pattern; /** * Constructs a new ClassMatchFilter * * @param pattern the pattern to use * @throws InvalidStringException if pattern is invalid */ public ClassMatchFilter (String pattern) throws InvalidStringException { int index = pattern.indexOf ('*'); if (index != -1 && index != 0 && index != (pattern.length () - 1)) { // '*' must be first char or last char throw new InvalidStringException ("pattern may be an exact match or " + "start/end with \"*\""); } _pattern = pattern; } /** * Returns the pattern to be matched * * @return the pattern */ public String getPattern () { return _pattern; } /** * Does the given event match the filter? * * @param event the Event to scrutinize */ public boolean matches (Event event) { Object type = event.getParameter (ReferenceTypeId.class); if (type != null) { Class eventClass = (Class) type; String name = eventClass.getName (); if (_pattern.startsWith ("*")) return name.endsWith (_pattern.substring (1)); else if (_pattern.endsWith ("*")) { int end = _pattern.length () - 1; return name.startsWith (_pattern.substring (0, end)); } else return name.matches (_pattern); } return false; } }