org.jboss.iiop.rmi.marshal.CDRStream Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.iiop.rmi.marshal;
import java.io.Externalizable;
import java.io.Serializable;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import javax.rmi.CORBA.Util;
import javax.rmi.PortableRemoteObject;
import org.omg.CORBA.portable.IDLEntity;
import org.omg.CORBA_2_3.portable.InputStream;
import org.omg.CORBA_2_3.portable.OutputStream;
import org.jboss.iiop.rmi.RmiIdlUtil;
/**
* Utility class with static methods to:
*
* - get the
CDRStreamReader for a given class
* - get the
CDRStreamWriter for a given class
*
*
* The CDRStreamReaders and CDRStreamWriters
* returned by these methods are instances of static inner classes
* defined by CDRStream.
*
* @author Francisco Reverbel
* @version $Revision: 81018 $
*/
public class CDRStream
{
/**
* Returns the abbreviated name of the marshaller for given
* Class.
*
* Abbreviated names of marshallers for basic types follow the usual
* Java convention:
*
*
* type abbrev name
* boolean "Z"
* byte "B"
* char "C"
* double "D"
* float "F"
* int "I"
* long "J"
* short "S"
* void "V"
*
*
* The abbreviated names of marshallers for object types are:
*
*
* java.lang.String "G" (strinG)
* RMI remote interface "R" + interfaceName
* RMI abstract interface "A"
* serializable "E" (sErializablE)
* valuetype "L" + className
* externalizable "X" (eXternalizable)
* org.omg.CORBA.Object "M" (oMg)
* IDL interface "N" + interfaceName
* java.lang.Object "O"
*
*
* As an example: the abbreviated name of a marshaller for a valuetype
* class named Foo is the string "LFoo".
*/
public static String abbrevFor(Class clz)
{
if (clz == Boolean.TYPE) {
return "Z";
}
else if (clz == Byte.TYPE) {
return "B";
}
else if (clz == Character.TYPE) {
return "C";
}
else if (clz == Double.TYPE) {
return "D";
}
else if (clz == Float.TYPE) {
return "F";
}
else if (clz == Integer.TYPE) {
return "I";
}
else if (clz == Long.TYPE) {
return "J";
}
else if (clz == Short.TYPE) {
return "S";
}
else if (clz == Void.TYPE) {
return "V";
}
else if (clz == String.class) {
return "G"; // strinG
}
else if (RmiIdlUtil.isRMIIDLRemoteInterface(clz)) {
return "R" + clz.getName(); // Remote interface
}
else if (clz == org.omg.CORBA.Object.class) {
return "M"; // oMg (CORBA Object)
}
else if (org.omg.CORBA.Object.class.isAssignableFrom(clz)) {
return "N" + clz.getName(); // IDL iNterface
}
else if (IDLEntity.class.isAssignableFrom(clz)) {
return "L" + clz.getName(); // vaLuetype
}
else if (clz == Serializable.class) {
return "E"; // sErializablE
}
else if (RmiIdlUtil.isAbstractInterface(clz)) {
return "A"; // Abstract interface
}
else if (Serializable.class.isAssignableFrom(clz)) {
return "L" + clz.getName(); // vaLuetype
}
else if (Externalizable.class.isAssignableFrom(clz)) {
return "X"; // eXternalizable
}
else if (clz == Object.class) {
return "O"; // Object
}
else {
return "L" + clz.getName(); // vaLuetype
}
}
/**
* Returns a CDRStreamReader given an abbreviated name
* and a ClassLoader for valuetype classes.
*/
public static CDRStreamReader readerFor(String s, ClassLoader cl)
{
switch (s.charAt(0)) {
case 'A':
return AbstractInterfaceReader.instance;
case 'B':
return ByteReader.instance;
case 'C':
return CharReader.instance;
case 'D':
return DoubleReader.instance;
case 'E':
return SerializableReader.instance;
case 'F':
return FloatReader.instance;
case 'G':
return StringReader.instance;
case 'I':
return IntReader.instance;
case 'J':
return LongReader.instance;
case 'L':
try {
// Use Class.forName() (rather than cl.loadClass()), because
// Class.forName() loads Java array types (which are valuetypes).
return new ValuetypeReader(Class.forName(s.substring(1),
true,
cl));
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ s.substring(1) + ": " + e);
}
case 'M':
return CorbaObjectReader.instance;
case 'N':
try {
return new IdlInterfaceReader(cl.loadClass(s.substring(1)));
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ s.substring(1) + ": " + e);
}
case 'O':
return ObjectReader.instance;
case 'R':
try {
return new RemoteReader(cl.loadClass(s.substring(1)));
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ s.substring(1) + ": " + e);
}
case 'S':
return ShortReader.instance;
case 'V':
return null;
case 'X':
return ExternalizableReader.instance;
case 'Z':
return BooleanReader.instance;
default:
return null;
}
}
/**
* Returns a CDRStreamWriter given an abbreviated name
* and a ClassLoader for valuetype classes.
*/
public static CDRStreamWriter writerFor(String s, ClassLoader cl)
{
switch (s.charAt(0)) {
case 'A':
return AbstractInterfaceWriter.instance;
case 'B':
return ByteWriter.instance;
case 'C':
return CharWriter.instance;
case 'D':
return DoubleWriter.instance;
case 'E':
return SerializableWriter.instance;
case 'F':
return FloatWriter.instance;
case 'G':
return StringWriter.instance;
case 'I':
return IntWriter.instance;
case 'J':
return LongWriter.instance;
case 'L':
try {
// Use Class.forName() (rather than cl.loadClass()), because
// Class.forName() loads Java array types (which are valuetypes).
return new ValuetypeWriter(Class.forName(s.substring(1),
true,
cl));
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ s.substring(1) + ": " + e);
}
case 'M':
return CorbaObjectWriter.instance;
case 'N':
try {
return new IdlInterfaceWriter(cl.loadClass(s.substring(1)));
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ s.substring(1) + ": " + e);
}
case 'O':
return ObjectWriter.instance;
case 'R':
return RemoteWriter.instance;
case 'S':
return ShortWriter.instance;
case 'V':
return null;
case 'X':
return ExternalizableWriter.instance;
case 'Z':
return BooleanWriter.instance;
default:
return null;
}
}
/**
* Returns the CDRStreamReader for a given Class.
*/
public static CDRStreamReader readerFor(Class clz)
{
if (clz == Boolean.TYPE) {
return BooleanReader.instance;
}
else if (clz == Byte.TYPE) {
return ByteReader.instance;
}
else if (clz == Character.TYPE) {
return CharReader.instance;
}
else if (clz == Double.TYPE) {
return DoubleReader.instance;
}
else if (clz == Float.TYPE) {
return FloatReader.instance;
}
else if (clz == Integer.TYPE) {
return IntReader.instance;
}
else if (clz == Long.TYPE) {
return LongReader.instance;
}
else if (clz == Short.TYPE) {
return ShortReader.instance;
}
else if (clz == Void.TYPE) {
return null;
}
else if (clz == String.class) {
return StringReader.instance;
}
else if (RmiIdlUtil.isRMIIDLRemoteInterface(clz)) {
return new RemoteReader(clz);
}
else if (clz == org.omg.CORBA.Object.class) {
return CorbaObjectReader.instance;
}
else if (org.omg.CORBA.Object.class.isAssignableFrom(clz)) {
return new IdlInterfaceReader(clz);
}
else if (IDLEntity.class.isAssignableFrom(clz)) {
return new ValuetypeReader(clz);
}
else if (clz == Serializable.class) {
return SerializableReader.instance;
}
else if (RmiIdlUtil.isAbstractInterface(clz)) {
return AbstractInterfaceReader.instance;
}
else if (Serializable.class.isAssignableFrom(clz)) {
return new ValuetypeReader(clz);
}
else if (Externalizable.class.isAssignableFrom(clz)) {
return ExternalizableReader.instance;
}
else if (clz == Object.class) {
return ObjectReader.instance;
}
else {
return new ValuetypeReader(clz);
}
}
/**
* Returns the CDRStreamWriter for a given Class.
*/
public static CDRStreamWriter writerFor(Class clz)
{
if (clz == Boolean.TYPE) {
return BooleanWriter.instance;
}
else if (clz == Byte.TYPE) {
return ByteWriter.instance;
}
else if (clz == Character.TYPE) {
return CharWriter.instance;
}
else if (clz == Double.TYPE) {
return DoubleWriter.instance;
}
else if (clz == Float.TYPE) {
return FloatWriter.instance;
}
else if (clz == Integer.TYPE) {
return IntWriter.instance;
}
else if (clz == Long.TYPE) {
return LongWriter.instance;
}
else if (clz == Short.TYPE) {
return ShortWriter.instance;
}
else if (clz == String.class) {
return StringWriter.instance;
}
else if (clz == Void.TYPE) {
return null;
}
else if (RmiIdlUtil.isRMIIDLRemoteInterface(clz)) {
return RemoteWriter.instance;
}
else if (clz == org.omg.CORBA.Object.class) {
return CorbaObjectWriter.instance;
}
else if (org.omg.CORBA.Object.class.isAssignableFrom(clz)) {
return new IdlInterfaceWriter(clz);
}
else if (IDLEntity.class.isAssignableFrom(clz)) {
return new ValuetypeWriter(clz);
}
else if (clz == Serializable.class) {
return SerializableWriter.instance;
}
else if (RmiIdlUtil.isAbstractInterface(clz)) {
return AbstractInterfaceWriter.instance;
}
else if (Serializable.class.isAssignableFrom(clz)) {
return new ValuetypeWriter(clz);
}
else if (Externalizable.class.isAssignableFrom(clz)) {
return ExternalizableWriter.instance;
}
else if (clz == Object.class) {
return ObjectWriter.instance;
}
else {
return new ValuetypeWriter(clz);
}
}
// Private -----------------------------------------------------------------
// Static inner classes (all of them private) ------------------------------
/**
* Singleton class that unmarshals booleans from a CDR input
* stream.
*/
private static final class BooleanReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new BooleanReader();
private BooleanReader() { }
public Object read(InputStream in)
{
return new Boolean(in.read_boolean());
}
}
/**
* Singleton class that unmarshals bytes from a CDR input
* stream.
*/
private static final class ByteReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new ByteReader();
private ByteReader() { }
public Object read(InputStream in)
{
return new Byte(in.read_octet());
}
}
/**
* Singleton class that unmarshals chars from a CDR input
* stream.
*/
private static final class CharReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new CharReader();
private CharReader() { }
public Object read(InputStream in)
{
return new Character(in.read_wchar());
}
}
/**
* Singleton class that unmarshals doubles from a CDR input
* stream.
*/
private static final class DoubleReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new DoubleReader();
private DoubleReader() { }
public Object read(InputStream in)
{
return new Double(in.read_double());
}
}
/**
* Singleton class that unmarshals floats from a CDR input
* stream.
*/
private static final class FloatReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new FloatReader();
private FloatReader() { }
public Object read(InputStream in)
{
return new Float(in.read_float());
}
}
/**
* Singleton class that unmarshals ints from a CDR input
* stream.
*/
private static final class IntReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new IntReader();
private IntReader() { }
public Object read(InputStream in)
{
return new Integer(in.read_long());
}
}
/**
* Singleton class that unmarshals longs from a CDR input
* stream.
*/
private static final class LongReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new LongReader();
private LongReader() { }
public Object read(InputStream in)
{
return new Long(in.read_longlong());
}
}
/**
* Singleton class that unmarshals shorts from a CDR input
* stream.
*/
private static final class ShortReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new ShortReader();
private ShortReader() { }
public Object read(InputStream in)
{
return new Short(in.read_short());
}
}
/**
* Singleton class that unmarshals Strings from a CDR input
* stream.
*/
private static final class StringReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new StringReader();
private StringReader() { }
public Object read(InputStream in)
{
return in.read_value(String.class);
}
}
/**
* Class that unmarshals java.rmi.Remote objects from a CDR
* input stream. A RemoteReader is specific for a given
* remote interface, which is passed as a parameter to the
* RemoteReader constructor.
*/
private static final class RemoteReader
implements CDRStreamReader
{
private Class clz;
RemoteReader(Class clz) {
this.clz = clz;
}
public Object read(InputStream in)
{
// The narrow() call downloads the stub from the codebase embedded
// within the IOR of the unmarshalled object.
return PortableRemoteObject.narrow(in.read_Object(), clz);
}
}
/**
* Singleton class that unmarshals objects whose declared type is
* java.lang.Object from a CDR input stream.
*/
private static final class ObjectReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new ObjectReader();
private ObjectReader() { }
public Object read(InputStream in)
{
return Util.readAny(in);
}
}
/**
* Singleton class that unmarshals objects whose declared type is
* java.io.Serializable from a CDR input stream.
*/
private static final class SerializableReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new SerializableReader();
private SerializableReader() { }
public Object read(InputStream in)
{
return (Serializable)Util.readAny(in);
}
}
/**
* Singleton class that unmarshals objects whose declared type is
* java.io.Externalizable from a CDR input stream.
*/
private static final class ExternalizableReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new ExternalizableReader();
private ExternalizableReader() { }
public Object read(InputStream in)
{
return (Externalizable)Util.readAny(in);
}
}
/**
* Singleton class that unmarshals objects whose declared type is
* org.omg.CORBA.Object from a CDR input stream.
*/
private static final class CorbaObjectReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new CorbaObjectReader();
private CorbaObjectReader() { }
public Object read(InputStream in)
{
return (org.omg.CORBA.Object)in.read_Object();
}
}
/**
* Class that unmarshals IDL interfaces from a CDR input stream.
* An IdlInterfaceReader is specific for objects that
* implement the Java interface passed as a parameter to the
* IdlInterfaceReader constructor. This Java interface
* must extend org.omg.CORBA.Object.
*/
private static final class IdlInterfaceReader
implements CDRStreamReader
{
static private Class[] paramTypes =
{ org.omg.CORBA.portable.InputStream.class };
// The readMethod for this IdlInterfaceReader.
private Method readMethod = null;
IdlInterfaceReader(Class clz)
{
String helperClassName = clz.getName() + "Helper";
try {
Class helperClass =
clz.getClassLoader().loadClass(helperClassName);
readMethod = helperClass.getMethod("read", paramTypes);
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ helperClassName + ": " + e);
}
catch (NoSuchMethodException e) {
throw new RuntimeException("No read method in helper class "
+ helperClassName + ": " + e);
}
}
public Object read(InputStream in)
{
try {
return readMethod.invoke(null, new Object[] { in });
}
catch (IllegalAccessException e) {
throw new RuntimeException("Internal error: " + e);
}
catch (InvocationTargetException e) {
throw new RuntimeException("Exception unmarshaling CORBA object: "
+ e.getTargetException());
}
}
}
/**
* Singleton class that unmarshals from a CDR output stream objects whose
* declared type is an interface that does not extend
* java.rmi.Remote and whose declared methods
* (including inherited ones) all throw
* java.rmi.RemoteException.
*/
private static final class AbstractInterfaceReader
implements CDRStreamReader
{
static final CDRStreamReader instance = new AbstractInterfaceReader();
private AbstractInterfaceReader() { }
public Object read(InputStream in)
{
return in.read_abstract_interface();
}
}
/**
* Class that unmarshals valuetypes from a CDR input stream.
* A ValuetypeReader is specific for objects of a given class,
* which is passed as a parameter to the ValuetypeReader
* constructor and must implement java.io.Serializable.
*/
private static final class ValuetypeReader
implements CDRStreamReader
{
private Class clz;
ValuetypeReader(Class clz) {
this.clz = clz;
}
public Object read(InputStream in)
{
return in.read_value(clz);
}
}
/**
* Singleton class that marshals booleans into a CDR output
* stream.
*/
private static final class BooleanWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new BooleanWriter();
private BooleanWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_boolean(((Boolean)obj).booleanValue());
}
}
/**
* Singleton class that marshals bytes into a CDR output
* stream.
*/
private static final class ByteWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new ByteWriter();
private ByteWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_octet(((Byte)obj).byteValue());
}
}
/**
* Singleton class that marshals chars into a CDR output
* stream.
*/
private static final class CharWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new CharWriter();
private CharWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_wchar(((Character)obj).charValue());
}
}
/**
* Singleton class that marshals doubles into a CDR output
* stream.
*/
private static final class DoubleWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new DoubleWriter();
private DoubleWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_double(((Double)obj).doubleValue());
}
}
/**
* Singleton class that marshals floats into a CDR output
* stream.
*/
private static final class FloatWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new FloatWriter();
private FloatWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_float(((Float)obj).floatValue());
}
}
/**
* Singleton class that marshals ints into a CDR output
* stream.
*/
private static final class IntWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new IntWriter();
private IntWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_long(((Integer)obj).intValue());
}
}
/**
* Singleton class that marshals longs into a CDR output
* stream.
*/
private static final class LongWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new LongWriter();
private LongWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_longlong(((Long)obj).longValue());
}
}
/**
* Singleton class that marshals shorts into a CDR output
* stream.
*/
private static final class ShortWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new ShortWriter();
private ShortWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_short(((Short)obj).shortValue());
}
}
/**
* Singleton class that marshals Strings into a CDR output
* stream.
*/
private static final class StringWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new StringWriter();
private StringWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_value((String)obj, String.class);
}
}
/**
* Singleton class that marshals java.rmi.Remote objects into
* a CDR output stream.
*/
private static final class RemoteWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new RemoteWriter();
private RemoteWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_Object((org.omg.CORBA.Object)obj);
}
}
/**
* Singleton class that marshals objects whose declared type is
* java.lang.Object into a CDR output stream.
*/
private static final class ObjectWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new ObjectWriter();
private ObjectWriter() { }
public void write(OutputStream out, Object obj)
{
Util.writeAny(out, obj);
}
}
/**
* Singleton class that marshals objects whose declared type is
* java.io.Serializable into a CDR output stream.
*/
private static final class SerializableWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new SerializableWriter();
private SerializableWriter() { }
public void write(OutputStream out, Object obj)
{
Util.writeAny(out, (Serializable)obj);
}
}
/**
* Singleton class that marshals objects whose declared type is
* java.io.Externalizable into a CDR output stream.
*/
private static final class ExternalizableWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new ExternalizableWriter();
private ExternalizableWriter() { }
public void write(OutputStream out, Object obj)
{
Util.writeAny(out, (Externalizable)obj);
}
}
/**
* Singleton class that marshals objects whose declared type is
* org.omg.CORBA.Object into a CDR output stream.
*/
private static final class CorbaObjectWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new CorbaObjectWriter();
private CorbaObjectWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_Object((org.omg.CORBA.Object)obj);
}
}
/**
* Class that marshals IDL interfaces into a CDR output stream.
* An IdlInterfaceWriter is specific for objects that
* implement the Java interface is passed as a parameter to the
* IdlInterfaceWriter constructor. This Java interface
* must extend org.omg.CORBA.Object.
*/
private static final class IdlInterfaceWriter
implements CDRStreamWriter
{
// The writeMethod for this IdlInterfaceReader.
private Method writeMethod = null;
IdlInterfaceWriter(Class clz)
{
String helperClassName = clz.getName() + "Helper";
try {
Class helperClass =
clz.getClassLoader().loadClass(helperClassName);
Class[] paramTypes = {
org.omg.CORBA.portable.OutputStream.class,
clz
};
writeMethod = helperClass.getMethod("write", paramTypes);
}
catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading class "
+ helperClassName + ": " + e);
}
catch (NoSuchMethodException e) {
throw new RuntimeException("No write method in helper class "
+ helperClassName + ": " + e);
}
}
public void write(OutputStream out, Object obj)
{
try {
writeMethod.invoke(null, new Object[] { out, obj });
}
catch (IllegalAccessException e) {
throw new RuntimeException("Internal error: " + e);
}
catch (InvocationTargetException e) {
throw new RuntimeException("Exception marshaling CORBA object: "
+ e.getTargetException());
}
}
}
/**
* Singleton class that marshals into a CDR output stream objects whose
* declared type is an interface that does not extend
* java.rmi.Remote and whose declared methods
* (including inherited ones) all throw
* java.rmi.RemoteException.
*/
private static final class AbstractInterfaceWriter
implements CDRStreamWriter
{
static final CDRStreamWriter instance = new AbstractInterfaceWriter();
private AbstractInterfaceWriter() { }
public void write(OutputStream out, Object obj)
{
out.write_abstract_interface(obj);
}
}
/**
* Class that marshals valuetypes into a CDR output stream.
* A ValuetypeWriter is specific for objects of a given class,
* which is passed as a parameter to the ValuetypeWriter
* constructor and must implement java.io.Serializable.
*/
private static final class ValuetypeWriter
implements CDRStreamWriter
{
private Class clz;
ValuetypeWriter(Class clz)
{
this.clz = clz;
}
public void write(OutputStream out, Object obj)
{
out.write_value((java.io.Serializable)obj, clz);
}
}
}