| /* ArrayReferenceCommandSet.java -- class to implement the Array |
| Reference 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 |
| 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.exception.InvalidObjectException; |
| import gnu.classpath.jdwp.exception.JdwpException; |
| import gnu.classpath.jdwp.exception.JdwpInternalErrorException; |
| import gnu.classpath.jdwp.exception.NotImplementedException; |
| import gnu.classpath.jdwp.id.ObjectId; |
| import gnu.classpath.jdwp.util.Value; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.lang.reflect.Array; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * A class representing the ArrayReference Command Set. |
| * |
| * @author Aaron Luchko <aluchko@redhat.com> |
| */ |
| public class ArrayReferenceCommandSet |
| extends CommandSet |
| { |
| public boolean runCommand(ByteBuffer bb, DataOutputStream os, byte command) |
| throws JdwpException |
| { |
| try |
| { |
| switch (command) |
| { |
| case JdwpConstants.CommandSet.ArrayReference.LENGTH: |
| executeLength(bb, os); |
| break; |
| case JdwpConstants.CommandSet.ArrayReference.GET_VALUES: |
| executeGetValues(bb, os); |
| break; |
| case JdwpConstants.CommandSet.ArrayReference.SET_VALUES: |
| executeSetValues(bb, os); |
| break; |
| default: |
| throw new NotImplementedException("Command " + command + |
| " not found in Array 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 false; |
| } |
| |
| private void executeLength(ByteBuffer bb, DataOutputStream os) |
| throws InvalidObjectException, IOException |
| { |
| ObjectId oid = idMan.readObjectId(bb); |
| Object array = oid.getObject(); |
| os.writeInt(Array.getLength(array)); |
| } |
| |
| private void executeGetValues(ByteBuffer bb, DataOutputStream os) |
| throws JdwpException, IOException |
| { |
| ObjectId oid = idMan.readObjectId(bb); |
| Object array = oid.getObject(); |
| int first = bb.getInt(); |
| int length = bb.getInt(); |
| |
| // We need to write out the byte signifying the type of array first |
| Class clazz = array.getClass().getComponentType(); |
| |
| // Uugh, this is a little ugly but it's the only time we deal with |
| // arrayregions |
| if (clazz == byte.class) |
| os.writeByte(JdwpConstants.Tag.BYTE); |
| else if (clazz == char.class) |
| os.writeByte(JdwpConstants.Tag.CHAR); |
| else if (clazz == float.class) |
| os.writeByte(JdwpConstants.Tag.FLOAT); |
| else if (clazz == double.class) |
| os.writeByte(JdwpConstants.Tag.DOUBLE); |
| else if (clazz == int.class) |
| os.writeByte(JdwpConstants.Tag.BYTE); |
| else if (clazz == long.class) |
| os.writeByte(JdwpConstants.Tag.LONG); |
| else if (clazz == short.class) |
| os.writeByte(JdwpConstants.Tag.SHORT); |
| else if (clazz == void.class) |
| os.writeByte(JdwpConstants.Tag.VOID); |
| else if (clazz == boolean.class) |
| os.writeByte(JdwpConstants.Tag.BOOLEAN); |
| else if (clazz.isArray()) |
| os.writeByte(JdwpConstants.Tag.ARRAY); |
| else if (String.class.isAssignableFrom(clazz)) |
| os.writeByte(JdwpConstants.Tag.STRING); |
| else if (Thread.class.isAssignableFrom(clazz)) |
| os.writeByte(JdwpConstants.Tag.THREAD); |
| else if (ThreadGroup.class.isAssignableFrom(clazz)) |
| os.writeByte(JdwpConstants.Tag.THREAD_GROUP); |
| else if (ClassLoader.class.isAssignableFrom(clazz)) |
| os.writeByte(JdwpConstants.Tag.CLASS_LOADER); |
| else if (Class.class.isAssignableFrom(clazz)) |
| os.writeByte(JdwpConstants.Tag.CLASS_OBJECT); |
| else |
| os.writeByte(JdwpConstants.Tag.OBJECT); |
| |
| // Write all the values, primitives should be untagged and Objects must be |
| // tagged |
| for (int i = first; i < first + length; i++) |
| { |
| Object value = Array.get(array, i); |
| if (clazz.isPrimitive()) |
| Value.writeUntaggedValue(os, value); |
| else |
| Value.writeTaggedValue(os, value); |
| } |
| } |
| |
| private void executeSetValues(ByteBuffer bb, DataOutputStream os) |
| throws IOException, JdwpException |
| { |
| ObjectId oid = idMan.readObjectId(bb); |
| Object array = oid.getObject(); |
| int first = bb.getInt(); |
| int length = bb.getInt(); |
| Class type = array.getClass().getComponentType(); |
| for (int i = first; i < first + length; i++) |
| { |
| Object value = Value.getUntaggedObj(bb, type); |
| Array.set(array, i, value); |
| } |
| } |
| } |