| /* MethodEntryEvent.java -- an event specifying that a method has been invoked |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| 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 |
| 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; |
| |
| import gnu.classpath.jdwp.JdwpConstants; |
| import gnu.classpath.jdwp.VMIdManager; |
| import gnu.classpath.jdwp.id.ThreadId; |
| import gnu.classpath.jdwp.util.Location; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * Notification from the VM that that a method has been invoked |
| * |
| * @author Kyle Galloway (kgallowa@redhat.com) |
| */ |
| public class MethodEntryEvent |
| extends Event |
| { |
| // The thread where the event occurred |
| private Thread _thread; |
| |
| // the location where the event occurred |
| private Location _location; |
| |
| //object instance |
| private Object _instance; |
| |
| /** |
| * Constructs a new <code>MethodEntryEvent</code> |
| * |
| * @param thread the thread where the exception occurred |
| * @param location the location single stepped to |
| * @param instance instance from which the method was called |
| */ |
| public MethodEntryEvent(Thread thread, Location location, Object instance) |
| { |
| super(JdwpConstants.EventKind.METHOD_ENTRY); |
| _thread = thread; |
| _location = location; |
| _instance = instance; |
| } |
| |
| /** |
| * Returns a specific filtering parameter for this event. Valid types are |
| * thread and location |
| * |
| * @param type the type of parameter desired |
| * @returns the desired parameter or null |
| */ |
| public Object getParameter(int type) |
| { |
| if (type == EVENT_THREAD) |
| return _thread; |
| else if (type == EVENT_LOCATION) |
| return _location; |
| else if (type == EVENT_INSTANCE) |
| return _instance; |
| else if (type == EVENT_CLASS) |
| return _instance.getClass(); |
| |
| return null; |
| } |
| |
| /** |
| * Writes the event to the given stream |
| * |
| * @param outStream the output stream to write the event to |
| * @throws IOException |
| */ |
| protected void _writeData(DataOutputStream outStream) |
| throws IOException |
| { |
| VMIdManager idm = VMIdManager.getDefault(); |
| ThreadId tid = (ThreadId) idm.getObjectId(_thread); |
| |
| tid.write(outStream); |
| _location.write(outStream); |
| } |
| |
| } |