| /* ReferenceTypeCommandSet.java -- class to implement the ReferenceType |
| Command Set |
| Copyright (C) 2005, 2006 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.JdwpConstants; |
| import gnu.classpath.jdwp.VMMethod; |
| import gnu.classpath.jdwp.VMVirtualMachine; |
| 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.ClassReferenceTypeId; |
| 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.nio.ByteBuffer; |
| |
| /** |
| * A class representing the ReferenceType Command Set. |
| * |
| * @author Aaron Luchko <aluchko@redhat.com> |
| */ |
| public class ReferenceTypeCommandSet |
| extends CommandSet |
| { |
| 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 ReferenceType 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 false; |
| } |
| |
| 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.getObjectId(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.getObjectId(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 |
| { |
| ClassReferenceTypeId refId |
| = (ClassReferenceTypeId) idMan.readReferenceTypeId(bb); |
| Class clazz = refId.getType(); |
| |
| VMMethod[] methods = VMVirtualMachine.getAllClassMethods(clazz); |
| os.writeInt (methods.length); |
| for (int i = 0; i < methods.length; i++) |
| { |
| VMMethod method = methods[i]; |
| method.writeId(os); |
| JdwpString.writeString(os, method.getName()); |
| JdwpString.writeString(os, method.getSignature()); |
| 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.readObjectId(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)) |
| { |
| try |
| { |
| field.setAccessible(true); // Might be a private field |
| Object value = field.get(null); |
| Value.writeTaggedValue(os, value); |
| } |
| catch (IllegalArgumentException ex) |
| { |
| // I suppose this would best qualify as an invalid field then |
| throw new InvalidFieldException(ex); |
| } |
| catch (IllegalAccessException ex) |
| { |
| // Since we set it as accessible this really shouldn't happen |
| throw new JdwpInternalErrorException(ex); |
| } |
| } |
| 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 = VMVirtualMachine.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 = VMVirtualMachine.getClassStatus(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.getObjectId(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."); |
| } |
| } |