*gnu/classpath/jdwp/processor/MethodCommandSet.java: Implemented

	the Method CommandSet.

1 files changed, 159 insertions, 0 deletions

diff --git a/gnu/classpath/jdwp/processor/MethodCommandSet.java b/gnu/classpath/jdwp/processor/MethodCommandSet.java
new file mode 100644
index 000000000..952b94a55
--- /dev/null
+++ b/gnu/classpath/jdwp/processor/MethodCommandSet.java
@@ -0,0 +1,159 @@
+/* MethodCommandSet.java -- class to implement the Method 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.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.LineTable;
+import gnu.classpath.jdwp.util.VariableTable;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.nio.ByteBuffer;
+
+/**
+ * A class representing the Method Command Set.
+ * 
+ * @author Aaron Luchko <aluchko@redhat.com>
+ */
+public class MethodCommandSet 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.Method.LINE_TABLE:
+            executeLineTable(bb, os);
+            break;
+          case JdwpConstants.CommandSet.Method.VARIABLE_TABLE:
+            executeVariableTable(bb, os);
+            break;
+          case JdwpConstants.CommandSet.Method.BYTE_CODES:
+            executeByteCodes(bb, os);
+            break;
+          case JdwpConstants.CommandSet.Method.IS_OBSOLETE:
+            executeIsObsolete(bb, os);
+            break;
+          case JdwpConstants.CommandSet.Method.VARIABLE_TABLE_WITH_GENERIC:
+            executeVariableTableWithGeneric(bb, os);
+            break;
+          default:
+            throw new NotImplementedException(
+              "Command " + command + " not found in Method 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 executeLineTable(ByteBuffer bb, DataOutputStream os)
+      throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    ObjectId oid = idMan.readId(bb);
+    Method method = (Method) oid.getObject();
+
+    LineTable lt = vm.getLineTable(clazz, method);
+    lt.write(os);
+  }
+
+  private void executeVariableTable(ByteBuffer bb, DataOutputStream os)
+      throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    ObjectId oid = idMan.readId(bb);
+    Method method = (Method) oid.getObject();
+
+    VariableTable vt = vm.getVarTable(clazz, method);
+    vt.write(os);
+  }
+
+  private void executeByteCodes(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 ByteCodes not implemented.");
+  }
+
+  private void executeIsObsolete(ByteBuffer bb, DataOutputStream os)
+      throws IOException
+  {
+    // The debugger is really asking if this method has been redefined using
+    // VirtualMachineCommandSet.RedefineClasses. Since we don't implement that
+    // command the answer to this will always be false.
+    os.writeBoolean(false);
+  }
+
+  private void executeVariableTableWithGeneric(ByteBuffer bb,
+                                               DataOutputStream os)
+      throws JdwpException
+  {
+    // We don't have generics yet
+    throw new NotImplementedException(
+      "Command SourceDebugExtension not implemented.");
+  }
+
+}