diff options
Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/ArrayReferenceCommandSet.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/ArrayReferenceCommandSet.java | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/ArrayReferenceCommandSet.java b/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/ArrayReferenceCommandSet.java new file mode 100644 index 000000000..5f579050a --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/classpath/jdwp/processor/ArrayReferenceCommandSet.java @@ -0,0 +1,176 @@ +/* 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.value.Value; +import gnu.classpath.jdwp.value.ValueFactory; + +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++) + { + Value val = ValueFactory.createFromObject(Array.get(array, i), clazz); + if (clazz.isPrimitive()) + val.writeUntagged(os); + else + val.writeTagged(os); + } + } + + 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.getUntaggedObject(bb, type); + Array.set(array, i, value); + } + } +} |