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+/* ClassPrepareEvent.java -- An event specifying that a class has been
+ prepared by the virtual machine
+ 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;
+
+import gnu.classpath.jdwp.JdwpConstants;
+import gnu.classpath.jdwp.VMIdManager;
+import gnu.classpath.jdwp.id.ReferenceTypeId;
+import gnu.classpath.jdwp.id.ThreadId;
+import gnu.classpath.jdwp.util.JdwpString;
+import gnu.classpath.jdwp.util.Signature;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+/**
+ * "Notification of a class prepare in the target VM. See the JVM
+ * specification for a definition of class preparation. Class prepare
+ * events are not generated for primtiive classes (for example,
+ * <code>java.lang.Integer.TYPE</code>)." -- JDWP 1.4.2
+ *
+ * @author Keith Seitz (keiths@redhat.com)
+ */
+public class ClassPrepareEvent
+ extends Event
+{
+ // The thread in which this event occurred
+ private Thread _thread;
+
+ // The class that was prepared
+ private Class _class;
+
+ // Prepare flags
+ private int _status;
+
+ /**
+ * Class has been verified
+ */
+ public static final int STATUS_VERIFIED
+ = JdwpConstants.ClassStatus.VERIFIED;
+
+ /**
+ * Class has been prepared
+ */
+ public static final int STATUS_PREPARED
+ = JdwpConstants.ClassStatus.PREPARED;
+
+ /**
+ * Class has been initialized
+ */
+ public static final int STATUS_INITIALIZED
+ = JdwpConstants.ClassStatus.INITIALIZED;
+
+ /**
+ * Error preparing class
+ */
+ public static final int STATUS_ERROR
+ = JdwpConstants.ClassStatus.ERROR;
+
+ /**
+ * Constructs a new <code>ClassPrepareEvent</code>
+ *
+ * @param thread thread in which event occurred
+ * @param clazz class which was prepared
+ * @param flags prepare status flags
+ */
+ public ClassPrepareEvent (Thread thread, Class clazz, int flags)
+ {
+ super (JdwpConstants.EventKind.CLASS_PREPARE);
+ _thread = thread;
+ _class = clazz;
+ _status = flags;
+ }
+
+ /**
+ * Returns a specific filtering parameter for this event.
+ * Valid types are thread and class.
+ *
+ * @param type the type of parameter desired
+ * @returns the desired parameter or <code>null</code>
+ */
+ public Object getParameter (int type)
+ {
+ if (type == EVENT_THREAD)
+ return _thread;
+ else if (type == EVENT_CLASS)
+ return _class;
+
+ return null;
+ }
+
+ /**
+ * Writes the event to the given stream
+ *
+ * @param outStream the output stream to write the event to
+ */
+ protected void _writeData (DataOutputStream outStream)
+ throws IOException
+ {
+ VMIdManager idm = VMIdManager.getDefault();
+ ThreadId tid = (ThreadId) idm.getObjectId (_thread);
+ ReferenceTypeId rid = idm.getReferenceTypeId (_class);
+
+ tid.write (outStream);
+ rid.writeTagged (outStream);
+ JdwpString.writeString (outStream,
+ Signature.computeClassSignature (_class));
+ outStream.writeInt (_status);
+ }
+}