diff options
Diffstat (limited to 'gnu/classpath/jdwp/util/Value.java')
| -rw-r--r-- | gnu/classpath/jdwp/util/Value.java | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/gnu/classpath/jdwp/util/Value.java b/gnu/classpath/jdwp/util/Value.java deleted file mode 100644 index 414c4a33b..000000000 --- a/gnu/classpath/jdwp/util/Value.java +++ /dev/null @@ -1,301 +0,0 @@ -/* Value.java -- class to read/write JDWP tagged and untagged values - 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.util; - -import gnu.classpath.jdwp.JdwpConstants; -import gnu.classpath.jdwp.VMIdManager; -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.ObjectId; - -import java.io.DataOutputStream; -import java.io.IOException; -import java.nio.ByteBuffer; - -/** - * A class to read/write JDWP tagged and untagged values. - * - * @author Aaron Luchko <aluchko@redhat.com> - */ -public class Value -{ - /** - * Will write the given object as an untagged value to the DataOutputStream. - * - * @param os write the value here - * @param obj the Object to write - * @throws IOException - * @throws InvalidFieldException - */ - public static void writeUntaggedValue(DataOutputStream os, Object obj) - throws JdwpException, IOException - { - writeValue(os, obj, false); - } - - /** - * Will write the given object as a tagged value to the DataOutputStream. - * - * @param os write the value here - * @param obj the Object to write - * @throws IOException - * @throws InvalidFieldException - */ - public static void writeTaggedValue(DataOutputStream os, Object obj) - throws JdwpException, IOException - { - writeValue(os, obj, true); - } - - /** - * Will write the given object as either a value or an untagged value to the - * DataOutputStream. - * - * @param os write the value here - * @param obj the Object to write - * @param tagged true if the value is tagged, false otherwise - * @throws IOException - * @throws InvalidFieldException - */ - private static void writeValue(DataOutputStream os, Object obj, - boolean tagged) - throws IOException, JdwpException - { - Class clazz = obj.getClass(); - if (clazz.isPrimitive()) - { - if (clazz == byte.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.BYTE); - os.writeByte(((Byte) obj).byteValue()); - } - else if (clazz == char.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.CHAR); - os.writeChar(((Character) obj).charValue()); - } - else if (clazz == float.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.FLOAT); - os.writeFloat(((Float) obj).floatValue()); - } - else if (clazz == double.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.DOUBLE); - os.writeDouble(((Double) obj).doubleValue()); - } - else if (clazz == int.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.BYTE); - os.writeInt(((Integer) obj).intValue()); - } - else if (clazz == long.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.LONG); - os.writeLong(((Long) obj).longValue()); - } - else if (clazz == short.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.SHORT); - os.writeInt(((Short) obj).shortValue()); - } - else if (clazz == void.class) - { // A 'void' has no data - if (tagged) - os.writeByte(JdwpConstants.Tag.VOID); - } - else if (clazz == boolean.class) - { - if (tagged) - os.writeByte(JdwpConstants.Tag.BOOLEAN); - os.writeBoolean(((Boolean) obj).booleanValue()); - } - else - { // This shouldn't be possible - throw new JdwpInternalErrorException( - "Field has invalid primitive!"); - } - } - else - { - // Object is an Object, not a primitive type wrapped in an object - // Write the appropriate tag - if (tagged) - { - if (clazz.isArray()) - os.writeByte(JdwpConstants.Tag.ARRAY); - else if (obj instanceof String) - os.writeByte(JdwpConstants.Tag.STRING); - else if (obj instanceof Thread) - os.writeByte(JdwpConstants.Tag.THREAD); - else if (obj instanceof ThreadGroup) - os.writeByte(JdwpConstants.Tag.THREAD_GROUP); - else if (obj instanceof ClassLoader) - os.writeByte(JdwpConstants.Tag.CLASS_LOADER); - else if (obj instanceof Class) - os.writeByte(JdwpConstants.Tag.CLASS_OBJECT); - else - os.writeByte(JdwpConstants.Tag.OBJECT); - } - ObjectId oid = VMIdManager.getDefault().getObjectId(obj); - oid.write(os); - } - } - - /** - * Reads the appropriate object for the tagged value contained in the - * ByteBuffer. - * - * @param bb contains the Object - * @return The Object referenced by the value - * @throws JdwpException - * @throws IOException - */ - public static Object getObj(ByteBuffer bb) - throws JdwpException, IOException - { - return getUntaggedObj(bb, bb.get()); - } - - /** - * Reads an object of the given Class from the untagged value contained - * in the ByteBuffer. - * - * @param bb contains the Object - * @param type corresponds to the TAG of value to be read - * @return the resultant object - * @throws JdwpException - * @throws IOException - */ - public static Object getUntaggedObj(ByteBuffer bb, Class type) - throws JdwpException, IOException - { - if (type.isPrimitive()) - { - if (type == byte.class) - return new Byte(bb.get()); - else if (type == char.class) - return new Character(bb.getChar()); - else if (type == float.class) - return new Float(bb.getFloat()); - else if (type == double.class) - return new Double(bb.getDouble()); - else if (type == int.class) - return new Integer(bb.getInt()); - else if (type == long.class) - return new Long(bb.getLong()); - else if (type == short.class) - return new Short(bb.getShort()); - else if (type == boolean.class) - return Boolean.valueOf(bb.get() != 0); - else if (type == void.class) - return new byte[0]; - else - { // This shouldn't be possible - throw new JdwpInternalErrorException( - "Field has invalid primitive!"); - } - } - else - { - // Field is an object - ObjectId oid = VMIdManager.getDefault().readObjectId(bb); - return oid.getObject(); - } - } - - /** - * Reads the an object of the given Class from the untagged value contained - * in the ByteBuffer. - * - * @param bb contains the Object - * @param tag TAG of the Value to be read - * @return the object - * @throws JdwpException - * @throws IOException - */ - public static Object getUntaggedObj(ByteBuffer bb, byte tag) - throws JdwpException, IOException - { - switch (tag) - { - case JdwpConstants.Tag.BYTE: - return new Byte(bb.get()); - case JdwpConstants.Tag.CHAR: - return new Character(bb.getChar()); - case JdwpConstants.Tag.FLOAT: - return new Float(bb.getFloat()); - case JdwpConstants.Tag.DOUBLE: - return new Double(bb.getDouble()); - case JdwpConstants.Tag.INT: - return new Integer(bb.getInt()); - case JdwpConstants.Tag.LONG: - return new Long(bb.getLong()); - case JdwpConstants.Tag.SHORT: - return new Short(bb.getShort()); - case JdwpConstants.Tag.VOID: - return new byte[0]; - case JdwpConstants.Tag.BOOLEAN: - return (bb.get() == 0) ? new Boolean(false) : new Boolean(true); - case JdwpConstants.Tag.STRING: - return JdwpString.readString(bb); - case JdwpConstants.Tag.ARRAY: - case JdwpConstants.Tag.THREAD: - case JdwpConstants.Tag.OBJECT: - case JdwpConstants.Tag.THREAD_GROUP: - case JdwpConstants.Tag.CLASS_LOADER: - case JdwpConstants.Tag.CLASS_OBJECT: - // All these cases are ObjectIds - ObjectId oid = VMIdManager.getDefault().readObjectId(bb); - return oid.getObject(); - default: - throw new NotImplementedException("Tag " + tag - + " is not implemented."); - } - } -} |