Filters are attached to address@hidden gnu.classpath.jdwp.event.EventRequest}s + * in order to allow the debugger to specify that an event should be sent + * only when the filters for the event request all match. + * + *
No filters means "send all notifications".
+ *
+ * @author Keith Seitz (address@hidden)
+ */
+public interface IEventFilter
+{
+ /**
+ * Does the given event match the filter?
+ *
+ * @param event the Event to scrutinize
+ */
+ public boolean matches (Event event);
+}
Index: gnu/classpath/jdwp/event/Event.java
--- /dev/null
+++ gnu/classpath/jdwp/event/Event.java
@@ -0,0 +1,129 @@
+/* Event.java -- a base class for all event types
+ 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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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;
+
+import gnu.classpath.jdwp.JdwpConstants;
+import gnu.classpath.jdwp.transport.JdwpCommandPacket;
+import gnu.classpath.jdwp.transport.JdwpPacket;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+/**
+ * This class is a base class for all VM->debugger event
+ * notifications.
+ *
+ * @author Keith Seitz (address@hidden)
+ */
+public abstract class Event
+{
+ // The kind of event represented by this event
+ private byte _eventKind;
+
+ /**
+ * Constructs an Event of the given kind
+ *
+ * @param kind the type of event
+ */
+ public Event (byte kind)
+ {
+ _eventKind = kind;
+ }
+
+ /**
+ * Returns the event type of this event
+ *
+ * @returns the event kind
+ */
+ public byte getEventKind ()
+ {
+ return _eventKind;
+ }
+
+ /**
+ * Abstract function used by implementing classes to fill in the
+ * event-specific data. Note that request ID is automatically added
+ * by this class (since it appears in all event notifications).
+ *
+ * @param outStream the stream to which to write data
+ */
+ protected abstract void _writeData (DataOutputStream outStream)
+ throws IOException;
+
+ /**
+ * Returns the filtering parameters for this event. For example,
+ * most events may be filtered by thread, so one of the parameters
+ * returned should be a Thread.
+ */
+ public abstract Object[] getParameters ();
+
+ /**
+ * Converts this event into to a JDWP packet
+ *
+ * @param requestId the request id that wanted this event (or 0)
+ * @returns a JdwpPacket of the events or null
+ */
+ public JdwpPacket toPacket (int requestId, byte suspendPolicy)
+ {
+ JdwpPacket pkt;
+ try
+ {
+ ByteArrayOutputStream data = new ByteArrayOutputStream ();
+ DataOutputStream outStream = new DataOutputStream (data);
+
+ outStream.writeByte (suspendPolicy);
+ outStream.writeInt (1);
+ outStream.writeByte (_eventKind);
+ outStream.writeInt (requestId);
+ _writeData (outStream);
+
+ pkt = new JdwpCommandPacket (JdwpConstants.CommandSet.Event.value,
+ JdwpConstants.CommandSet.Event.Composite);
+ pkt.setData (data.toByteArray ());
+ }
+ catch (IOException ioe)
+ {
+ pkt = null;
+ }
+
+ return pkt;
+ }
+}