--- /dev/null
+/* ObjectReferenceCommandSet.java -- lass to implement the ObjectReference
+ Command Set
+ 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
+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.processor;
+
+import gnu.classpath.jdwp.IVirtualMachine;
+import gnu.classpath.jdwp.Jdwp;
+import gnu.classpath.jdwp.JdwpConstants;
+import gnu.classpath.jdwp.exception.InvalidFieldException;
+import gnu.classpath.jdwp.exception.JdwpException;
+import gnu.classpath.jdwp.exception.JdwpInternalErrorException;
+import gnu.classpath.jdwp.exception.NotImplementedException;
+import gnu.classpath.jdwp.id.IdManager;
+import gnu.classpath.jdwp.id.ObjectId;
+import gnu.classpath.jdwp.id.ReferenceTypeId;
+import gnu.classpath.jdwp.util.Value;
+import gnu.classpath.jdwp.util.MethodInvoker;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.nio.ByteBuffer;
+
+/**
+ * A class representing the ObjectReference Command Set.
+ *
+ * @author Aaron Luchko <aluchko@redhat.com>
+ */
+public class ObjectReferenceCommandSet implements CommandSet
+{
+ // Our hook into the jvm
+ private final IVirtualMachine vm = Jdwp.getIVirtualMachine();
+
+ // Manages all the different ids that are assigned by jdwp
+ private final IdManager idMan = Jdwp.getIdManager();
+
+ public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command)
+ throws JdwpException
+ {
+ try
+ {
+ switch (command)
+ {
+ case JdwpConstants.CommandSet.ObjectReference.REFERENCE_TYPE:
+ executeReferenceType(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.GET_VALUES:
+ executeGetValues(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.SET_VALUES:
+ executeSetValues(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.MONITOR_INFO:
+ executeMonitorInfo(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.INVOKE_METHOD:
+ executeInvokeMethod(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.DISABLE_COLLECTION:
+ executeDisableCollection(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.ENABLE_COLLECTION:
+ executeEnableCollection(bb, os);
+ break;
+ case JdwpConstants.CommandSet.ObjectReference.IS_COLLECTED:
+ executeIsCollected(bb, os);
+ break;
+ default:
+ throw new NotImplementedException("Command " + command +
+ " not found in String Reference Command Set.");
+ }
+ }
+ catch (IOException ex)
+ {
+ // The DataOutputStream we're using isn't talking to a socket at all
+ // So if we throw an IOException we're in serious trouble
+ throw new JdwpInternalErrorException(ex);
+ }
+ return true;
+ }
+
+ private void executeReferenceType(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ Object obj = oid.getObject();
+ Class clazz = obj.getClass();
+ ReferenceTypeId refId = idMan.getReferenceTypeId(clazz);
+ refId.writeTagged(os);
+ }
+
+ private void executeGetValues(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ Object obj = oid.getObject();
+
+ int numFields = bb.getInt();
+
+ os.writeInt(numFields); // Looks pointless but this is the protocol
+
+ for (int i = 0; i < numFields; i++)
+ {
+ Field field = (Field) idMan.readId(bb).getObject();
+ Value.writeValueFromField(os, field, obj);
+ }
+ }
+
+ private void executeSetValues(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ Object obj = oid.getObject();
+
+ int numFields = bb.getInt();
+
+ for (int i = 0; i < numFields; i++)
+ {
+ Field field = (Field) idMan.readId(bb).getObject();
+ Object value = Value.getObj(bb, field);
+ try
+ {
+ field.set(obj, value);
+ }
+ catch (IllegalArgumentException ex)
+ {
+ // I suppose this would best qualify as an invalid field then
+ throw new InvalidFieldException(ex);
+ }
+ catch (IllegalAccessException ex)
+ {
+ // We should be able to access any field
+ throw new JdwpInternalErrorException(ex);
+ }
+ }
+ }
+
+ private void executeMonitorInfo(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException
+ {
+ // This command is optional, determined by VirtualMachines CapabilitiesNew
+ // so we'll leave it till later to implement
+ throw new NotImplementedException(
+ "Command ExecuteMonitorInfo not implemented.");
+
+ }
+
+ private void executeInvokeMethod(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ Object obj = oid.getObject();
+
+ ObjectId tid = idMan.readId(bb);
+ Thread thread = (Thread) tid.getObject();
+
+ ReferenceTypeId rid = idMan.readReferenceTypeId(bb);
+ Class clazz = rid.getType();
+
+ ObjectId mid = idMan.readId(bb);
+ Method method = (Method) mid.getObject();
+
+ int args = bb.getInt();
+ Object[] values = new Object[args];
+
+ for (int i = 0; i < args; i++)
+ {
+ values[i] = Value.getObj(bb);
+ }
+
+ int invokeOptions = bb.getInt();
+
+ if ((invokeOptions & JdwpConstants.InvokeOptions.INVOKE_SINGLE_THREADED) != 0)
+ { // We must suspend all other running threads first
+ vm.suspendAllThreads();
+ }
+ boolean nonVirtual;
+ if ((invokeOptions & JdwpConstants.InvokeOptions.INVOKE_NONVIRTUAL) != 0)
+ nonVirtual = true;
+ else
+ nonVirtual = false;
+ MethodInvoker vmi = new MethodInvoker(vm);
+
+ vmi.executeMethod(obj, thread, clazz, method, values, nonVirtual);
+ Object value = vmi.getReturnedValue();
+ ObjectId exceptionId = vmi.getExceptionId();
+
+ Value.writeValue(os, value);
+ exceptionId.writeTagged(os);
+ }
+
+ private void executeDisableCollection(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ oid.disableCollection();
+ }
+
+ private void executeEnableCollection(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ oid.enableCollection();
+ }
+
+ private void executeIsCollected(ByteBuffer bb, DataOutputStream os)
+ throws JdwpException, IOException
+ {
+ ObjectId oid = idMan.readId(bb);
+ boolean collected = oid.isCollected();
+ os.writeBoolean(collected);
+ }
+}
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