* gnu/classpath/jdwp/processor/ReferenceTypeCommandSet.java:New

        file.

From-SVN: r101730

libjava/ChangeLog

+2005-07-07  Aaron Luchko  <aluchko@redhat.com>
+
+	* gnu/classpath/jdwp/processor/ReferenceTypeCommandSet.java:New
+	file.
+
 2005-07-07  Bryce McKinlay  <mckinlay@redhat.com>
 
 	* testsuite/libjava.jacks/jacks.xfail: Remove 6.5.5.1-nested-4,

libjava/gnu/classpath/jdwp/processor/ReferenceTypeCommandSet.java

+/* ReferenceTypeCommandSet.java -- lass to implement the ReferenceType
+   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.JdwpString;
+import gnu.classpath.jdwp.util.Signature;
+import gnu.classpath.jdwp.util.Value;
+
+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 ReferenceType Command Set.
+ * 
+ * @author Aaron Luchko <aluchko@redhat.com>
+ */
+public class ReferenceTypeCommandSet 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.ReferenceType.SIGNATURE:
+            executeSignature(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.CLASS_LOADER:
+            executeClassLoader(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.MODIFIERS:
+            executeModifiers(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.FIELDS:
+            executeFields(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.METHODS:
+            executeMethods(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.GET_VALUES:
+            executeGetValues(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.SOURCE_FILE:
+            executeSourceFile(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.NESTED_TYPES:
+            executeNestedTypes(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.STATUS:
+            executeStatus(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.INTERFACES:
+            executeInterfaces(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.CLASS_OBJECT:
+            executeClassObject(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.SOURCE_DEBUG_EXTENSION:
+            executeSourceDebugExtension(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.SIGNATURE_WITH_GENERIC:
+            executeSignatureWithGeneric(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.FIELDS_WITH_GENERIC:
+            executeFieldWithGeneric(bb, os);
+            break;
+          case JdwpConstants.CommandSet.ReferenceType.METHODS_WITH_GENERIC:
+            executeMethodsWithGeneric(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 executeSignature(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    String sig = Signature.computeClassSignature(refId.getType());
+    JdwpString.writeString(os, sig);
+  }
+
+  private void executeClassLoader(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+
+    Class clazz = refId.getType();
+    ClassLoader loader = clazz.getClassLoader();
+    ObjectId oid = idMan.getId(loader);
+    oid.write(os);
+  }
+
+  private void executeModifiers(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+
+    Class clazz = refId.getType();
+    os.writeInt(clazz.getModifiers());
+  }
+
+  private void executeFields(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    Field[] fields = clazz.getFields();
+    os.writeInt(fields.length);
+    for (int i = 0; i < fields.length; i++)
+      {
+        Field field = fields[i];
+        idMan.getId(field).write(os);
+        JdwpString.writeString(os, field.getName());
+        JdwpString.writeString(os, Signature.computeFieldSignature(field));
+        os.writeInt(field.getModifiers());
+      }
+  }
+
+  private void executeMethods(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    Method[] methods = clazz.getMethods();
+    os.writeInt(methods.length);
+    for (int i = 0; i < methods.length; i++)
+      {
+        Method method = methods[i];
+        idMan.getId(method).write(os);
+        JdwpString.writeString(os, method.getName());
+        JdwpString.writeString(os, Signature.computeMethodSignature(method));
+        os.writeInt(method.getModifiers());
+      }
+  }
+
+  private void executeGetValues(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    int numFields = bb.getInt();
+    os.writeInt(numFields); // Looks pointless but this is the protocol
+    for (int i = 0; i < numFields; i++)
+      {
+        ObjectId fieldId = idMan.readId(bb);
+        Field field = (Field) (fieldId.getObject());
+        Class fieldClazz = field.getDeclaringClass();
+
+        // We don't actually need the clazz to get the field but we might as
+        // well check that the debugger got it right
+        if (fieldClazz.isAssignableFrom(clazz))
+          Value.writeStaticValueFromField(os, field);
+        else
+          throw new InvalidFieldException(fieldId.getId());
+      }
+  }
+
+  private void executeSourceFile(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    // We'll need to go into the jvm for this unless there's an easier way
+    String sourceFileName = vm.getSourceFile(clazz);
+    JdwpString.writeString(os, sourceFileName);
+    // clazz.getProtectionDomain().getCodeSource().getLocation();
+  }
+
+  private void executeNestedTypes(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+    Class[] declaredClazzes = clazz.getDeclaredClasses();
+    os.writeInt(declaredClazzes.length);
+    for (int i = 0; i < declaredClazzes.length; i++)
+      {
+        Class decClazz = declaredClazzes[i];
+        ReferenceTypeId clazzId = idMan.getReferenceTypeId(decClazz);
+        clazzId.writeTagged(os);
+      }
+  }
+
+  private void executeStatus(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+
+    // I don't think there's any other way to get this
+    int status = vm.getStatus(clazz);
+    os.writeInt(status);
+  }
+
+  private void executeInterfaces(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+    Class[] interfaces = clazz.getInterfaces();
+    os.writeInt(interfaces.length);
+    for (int i = 0; i < interfaces.length; i++)
+      {
+        Class interfaceClass = interfaces[i];
+        ReferenceTypeId intId = idMan.getReferenceTypeId(interfaceClass);
+        intId.write(os);
+      }
+  }
+
+  private void executeClassObject(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
+    Class clazz = refId.getType();
+    ObjectId clazzObjectId = idMan.getId(clazz);
+    clazzObjectId.write(os);
+  }
+
+  private void executeSourceDebugExtension(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    // This command is optional, determined by VirtualMachines CapabilitiesNew
+    // so we'll leave it till later to implement
+    throw new NotImplementedException(
+      "Command SourceDebugExtension not implemented.");
+  }
+
+  private void executeSignatureWithGeneric(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    // We don't have generics yet
+    throw new NotImplementedException(
+      "Command SourceDebugExtension not implemented.");
+  }
+
+  private void executeFieldWithGeneric(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    // We don't have generics yet
+    throw new NotImplementedException(
+      "Command SourceDebugExtension not implemented.");
+  }
+
+  private void executeMethodsWithGeneric(ByteBuffer bb, DataOutputStream os)
+    throws JdwpException, IOException
+  {
+    // We don't have generics yet
+    throw new NotImplementedException(
+      "Command SourceDebugExtension not implemented.");
+  }
+}