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Diffstat (limited to 'libjava/classpath/gnu/classpath/jdwp/event/ExceptionEvent.java')
-rw-r--r-- | libjava/classpath/gnu/classpath/jdwp/event/ExceptionEvent.java | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/classpath/jdwp/event/ExceptionEvent.java b/libjava/classpath/gnu/classpath/jdwp/event/ExceptionEvent.java new file mode 100644 index 000000000..e63f5df12 --- /dev/null +++ b/libjava/classpath/gnu/classpath/jdwp/event/ExceptionEvent.java @@ -0,0 +1,157 @@ +/* ExceptionEvent.java -- an event specifying an exception has been thrown + 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.ObjectId; +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 an exception has occurred along with where it + * occurred, and if and where it was caught. + * + * @author Kyle Galloway (kgallowa@redhat.com) + */ +public class ExceptionEvent + extends Event +{ + //object instance + private Object _instance; + + // the exception thrown + private Throwable _exception; + + // the thread in which the exception occurred + private Thread _thread; + + // the location where the exception was thrown + private Location _location; + + //the location where the exception was caught + private Location _catchLocation; + + //the class where the exeption was thrown + private Class _klass; + + /** + * Constructs a new <code>ExceptionEvent</code> where the exception was + * caught. + * + * @param exception the throwable object that generated the event + * @param thread the thread where the exception occurred + * @param location the location where the exception was thrown + * @param catchLocation the location where the exception was caught + * @param instance the instance that threw the exception + */ + public ExceptionEvent(Throwable exception, Thread thread, Location location, + Location catchLocation, Class clazz, Object instance) + { + super(JdwpConstants.EventKind.EXCEPTION); + _exception = exception; + _thread = thread; + _location = location; + _catchLocation = catchLocation; + _klass = clazz; + _instance = instance; + } + + /** + * Returns a specific filtering parameter for this event. Valid types are + * thread, location, and catchLocation. + * + * @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 _klass; + else if (type == EVENT_EXCEPTION_CLASS) + return _exception.getClass(); + else if (type == EVENT_EXCEPTION_CAUGHT) + if (_catchLocation.getMethod() != null) + return Boolean.TRUE; + else + return Boolean.FALSE; + + return null; + } + + /** + * Sets the catchLocation, used for exceptions that are caught in different + * stack frames from where they are thrown. + * + * @param catchLoc the location of the catch + */ + public void setCatchLoc(Location catchLoc) + { + _catchLocation = catchLoc; + } + + /** + * 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); + ObjectId oid = idm.getObjectId(_exception); + + tid.write(outStream); + _location.write(outStream); + oid.writeTagged(outStream); + _catchLocation.write(outStream); + + } +} |