947 lines
29 KiB
Java
947 lines
29 KiB
Java
|
/* RmiUtilities.java --
|
||
|
Copyright (C) 2005 Free Software Foundation, Inc.
|
||
|
|
||
|
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.javax.rmi.CORBA;
|
||
|
|
||
|
import gnu.CORBA.OrbFunctional;
|
||
|
import gnu.CORBA.Minor;
|
||
|
import gnu.CORBA.Unexpected;
|
||
|
import gnu.CORBA.CDR.Vio;
|
||
|
import gnu.CORBA.CDR.gnuRuntime;
|
||
|
import gnu.CORBA.CDR.gnuValueStream;
|
||
|
import gnu.CORBA.CDR.HeadlessInput;
|
||
|
|
||
|
import org.omg.CORBA.MARSHAL;
|
||
|
import org.omg.CORBA.StringValueHelper;
|
||
|
import org.omg.CORBA.WStringValueHelper;
|
||
|
import org.omg.CORBA.portable.Delegate;
|
||
|
import org.omg.CORBA.portable.InputStream;
|
||
|
import org.omg.CORBA.portable.ObjectImpl;
|
||
|
import org.omg.CORBA.portable.OutputStream;
|
||
|
import org.omg.CORBA.portable.ValueBase;
|
||
|
import org.omg.PortableServer.POA;
|
||
|
import org.omg.PortableServer.POAHelper;
|
||
|
import org.omg.PortableServer.Servant;
|
||
|
import org.omg.PortableServer.POAManagerPackage.State;
|
||
|
import org.omg.SendingContext.RunTime;
|
||
|
|
||
|
import java.io.ByteArrayOutputStream;
|
||
|
import java.io.DataOutputStream;
|
||
|
import java.io.Externalizable;
|
||
|
import java.io.IOException;
|
||
|
import java.io.ObjectInputStream;
|
||
|
import java.io.ObjectOutputStream;
|
||
|
import java.io.Serializable;
|
||
|
import java.lang.reflect.Field;
|
||
|
import java.lang.reflect.Method;
|
||
|
import java.lang.reflect.Modifier;
|
||
|
import java.rmi.Remote;
|
||
|
import java.security.MessageDigest;
|
||
|
import java.util.Arrays;
|
||
|
import java.util.Comparator;
|
||
|
import java.util.Iterator;
|
||
|
import java.util.TreeSet;
|
||
|
import java.util.WeakHashMap;
|
||
|
|
||
|
import javax.rmi.PortableRemoteObject;
|
||
|
import javax.rmi.CORBA.Stub;
|
||
|
import javax.rmi.CORBA.Tie;
|
||
|
import javax.rmi.CORBA.Util;
|
||
|
|
||
|
/**
|
||
|
* Defines methods that must be accessible in several derived classes.
|
||
|
*
|
||
|
* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
|
||
|
*/
|
||
|
public class RmiUtilities
|
||
|
{
|
||
|
/**
|
||
|
* The currently used RMI-IIOP version format.
|
||
|
*/
|
||
|
public static byte VERSION = 1;
|
||
|
|
||
|
/**
|
||
|
* The non - writable class fields.
|
||
|
*/
|
||
|
static final int NON_WRITABLE = Modifier.STATIC | Modifier.TRANSIENT;
|
||
|
|
||
|
/**
|
||
|
* The standard String repository Id.
|
||
|
*/
|
||
|
public static final String RMI_STRING_ID = StringValueHelper.id();
|
||
|
|
||
|
/**
|
||
|
* The standard Class repository Id.
|
||
|
*/
|
||
|
public static final String RMI_CLASS_ID = "RMI:javax.rmi.CORBA.ClassDesc:2BABDA04587ADCCC:CFBF02CF5294176B";
|
||
|
|
||
|
/**
|
||
|
* The standard string array repository Id.
|
||
|
*/
|
||
|
public static final String RMI_STRING_ARRAY_ID = "RMI:[Ljava.lang.String;:071DA8BE7F971128:A0F0A4387A3BB342";
|
||
|
|
||
|
/**
|
||
|
* An instance of the wide string value helper for writing strings.
|
||
|
*/
|
||
|
static WStringValueHelper wStringValueHelper = new WStringValueHelper();
|
||
|
|
||
|
/**
|
||
|
* Set of serializable classes that have .writeObject and .readObject defined.
|
||
|
* Contains weak references to ensure that the classes will be unloadable.
|
||
|
*/
|
||
|
WeakHashMap io_format = new WeakHashMap();
|
||
|
|
||
|
/**
|
||
|
* The standard IO format with no .writeObject and .readObject defined.
|
||
|
*/
|
||
|
static final Object STANDARD = new Object();
|
||
|
|
||
|
/**
|
||
|
* The custom IO format with .writeObject and .readObject defined,
|
||
|
* defaultWriteObject called.
|
||
|
*/
|
||
|
static final Object CUSTOM_DWO = new Object();
|
||
|
|
||
|
/**
|
||
|
* The custom IO format with .writeObject and .readObject defined,
|
||
|
* defaultWriteObject has not been called.
|
||
|
*/
|
||
|
static final Object CUSTOM_NO_DWO = new Object();
|
||
|
|
||
|
/**
|
||
|
* The arguments for readObject.
|
||
|
*/
|
||
|
static final Class[] READ_OBJECT_ARGS = new Class[] { ObjectInputStream.class };
|
||
|
|
||
|
/**
|
||
|
* The arguments for writeObject.
|
||
|
*/
|
||
|
static final Class[] WRITE_OBJECT_ARGS = new Class[] { ObjectOutputStream.class };
|
||
|
|
||
|
/**
|
||
|
* The undocumented field that is heading the Sun's object data, written with
|
||
|
* writeObject.
|
||
|
*/
|
||
|
static final int S_X = 16908034;
|
||
|
|
||
|
/**
|
||
|
* Write all fields of the passed value.
|
||
|
*/
|
||
|
void writeFields(OutputStream an_output, Serializable object)
|
||
|
{
|
||
|
org.omg.CORBA_2_3.portable.OutputStream output = (org.omg.CORBA_2_3.portable.OutputStream) an_output;
|
||
|
try
|
||
|
{
|
||
|
Class o_class = object.getClass();
|
||
|
Field[] fields = getWritableFields(o_class);
|
||
|
Field f;
|
||
|
|
||
|
Class fc;
|
||
|
|
||
|
for (int i = 0; i < fields.length; i++)
|
||
|
{
|
||
|
f = fields[i];
|
||
|
fc = f.getType();
|
||
|
Object v = f.get(object);
|
||
|
|
||
|
if (fc == String.class)
|
||
|
{
|
||
|
output.write_value((Serializable) v, wStringValueHelper);
|
||
|
}
|
||
|
else if (fc == int.class)
|
||
|
output.write_long(((Integer) v).intValue());
|
||
|
else if (fc == long.class)
|
||
|
output.write_longlong(((Number) v).longValue());
|
||
|
else if (fc == double.class)
|
||
|
output.write_double(((Number) v).doubleValue());
|
||
|
else if (fc == float.class)
|
||
|
output.write_float(((Number) v).floatValue());
|
||
|
else if (fc == boolean.class)
|
||
|
output.write_boolean(((Boolean) v).booleanValue());
|
||
|
else if (fc == short.class)
|
||
|
output.write_short(((Number) v).shortValue());
|
||
|
else if (fc == byte.class)
|
||
|
output.write_octet(((Number) v).byteValue());
|
||
|
else if (fc == char.class)
|
||
|
output.write_wchar(((Character) v).charValue());
|
||
|
else
|
||
|
{
|
||
|
if (!fc.isInterface() && Remote.class.isAssignableFrom(fc))
|
||
|
fc = getExportedInterface(fc);
|
||
|
writeMember(output, v, fc);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("Cannot write " + object);
|
||
|
m.minor = Minor.ValueFields;
|
||
|
m.initCause(ex);
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Write a memeber (field) of the data structure.
|
||
|
*/
|
||
|
void writeMember(org.omg.CORBA_2_3.portable.OutputStream output,
|
||
|
Object object, Class xClass)
|
||
|
{
|
||
|
if (output instanceof gnuValueStream)
|
||
|
{
|
||
|
gnuRuntime g = ((gnuValueStream) output).getRunTime();
|
||
|
// Reset the target as we are already beyond the critical point
|
||
|
// where is must have the value being written.
|
||
|
if (g != null)
|
||
|
g.target = null;
|
||
|
}
|
||
|
if (Serializable.class.isAssignableFrom(xClass)
|
||
|
|| Remote.class.isAssignableFrom(xClass))
|
||
|
{
|
||
|
// Object handles null reference on its own.
|
||
|
if (org.omg.CORBA.Object.class.isAssignableFrom(xClass)
|
||
|
|| Remote.class.isAssignableFrom(xClass))
|
||
|
{
|
||
|
if (object == null)
|
||
|
output.write_Object(null);
|
||
|
else if (isTieRequired(object))
|
||
|
exportTie(output, object, xClass);
|
||
|
else
|
||
|
writeValue(output, (Serializable) object);
|
||
|
}
|
||
|
else
|
||
|
output.write_value((Serializable) object, xClass);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL(xClass + " is not Serializable");
|
||
|
m.minor = Minor.NonSerializable;
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Check if the object must be wrapped into Tie, connected to the ORB and then
|
||
|
* the corresponding Stub be written.
|
||
|
*/
|
||
|
public boolean isTieRequired(Object object)
|
||
|
{
|
||
|
return object instanceof Remote && !(object instanceof Stub);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Get the interface under that the class of this object must be exposed. The
|
||
|
* interface must be derived from Remote.
|
||
|
*/
|
||
|
Class getExportedInterface(Object object)
|
||
|
throws MARSHAL
|
||
|
{
|
||
|
Class fc = null;
|
||
|
Class[] interfaces = object.getClass().getInterfaces();
|
||
|
for (int i = 0; i < interfaces.length; i++)
|
||
|
{
|
||
|
if (!Remote.class.equals(interfaces[i]))
|
||
|
if (Remote.class.isAssignableFrom(interfaces[i]))
|
||
|
{
|
||
|
if (fc == null)
|
||
|
fc = interfaces[i];
|
||
|
else
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("Both " + fc + " and " + interfaces[i]
|
||
|
+ " extends Remote");
|
||
|
m.minor = Minor.TargetConversion;
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
if (fc == null)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL(object.getClass()
|
||
|
+ " does not implement any interface, derived from Remote");
|
||
|
m.minor = Minor.TargetConversion;
|
||
|
throw m;
|
||
|
}
|
||
|
return fc;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Get the persistent hash code for the given class, as defined by OMG
|
||
|
* standard. The inheritance, field names and types (but not the visibility)
|
||
|
* are taken into consideration as well as the presence of the writeObject
|
||
|
* method are taken into consideration. The class name and methods, if any,
|
||
|
* are not taken into consideration.
|
||
|
*/
|
||
|
public static long getHashCode(Class c)
|
||
|
{
|
||
|
Class of = c.isArray() ? c.getComponentType() : null;
|
||
|
if (c.isArray()
|
||
|
&& ((!Serializable.class.isAssignableFrom(of) || of.isPrimitive() || Remote.class.isAssignableFrom(of))))
|
||
|
return 0;
|
||
|
if (!Serializable.class.isAssignableFrom(c))
|
||
|
return 0;
|
||
|
try
|
||
|
{
|
||
|
ByteArrayOutputStream bout = new ByteArrayOutputStream();
|
||
|
DataOutputStream out = new DataOutputStream(bout);
|
||
|
|
||
|
Class superClass = c.getSuperclass();
|
||
|
if (superClass != null)
|
||
|
out.writeLong(getHashCode(superClass));
|
||
|
|
||
|
int writeObjectPresentCode;
|
||
|
try
|
||
|
{
|
||
|
c.getDeclaredMethod("writeObject",
|
||
|
new Class[] { ObjectOutputStream.class });
|
||
|
writeObjectPresentCode = 2; // Exists.
|
||
|
}
|
||
|
catch (NoSuchMethodException e)
|
||
|
{
|
||
|
writeObjectPresentCode = 1; // Missing.
|
||
|
}
|
||
|
out.writeInt(writeObjectPresentCode);
|
||
|
|
||
|
Field[] fields = c.getDeclaredFields();
|
||
|
|
||
|
Arrays.sort(fields, new Comparator()
|
||
|
{
|
||
|
public int compare(Object a, Object b)
|
||
|
{
|
||
|
Field fa = (Field) a;
|
||
|
Field fb = (Field) b;
|
||
|
return fa.getName().compareTo(fb.getName());
|
||
|
}
|
||
|
});
|
||
|
|
||
|
Field f;
|
||
|
for (int i = 0; i < fields.length; i++)
|
||
|
{
|
||
|
f = fields[i];
|
||
|
if ((f.getModifiers() & NON_WRITABLE) == 0)
|
||
|
{
|
||
|
out.writeUTF(f.getName());
|
||
|
out.writeUTF(getDescriptor(f.getType()));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
out.flush();
|
||
|
out.close();
|
||
|
MessageDigest shaDigest;
|
||
|
try
|
||
|
{
|
||
|
shaDigest = MessageDigest.getInstance("SHA");
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
throw new InternalError("SHA digesting algorithm is not available");
|
||
|
}
|
||
|
|
||
|
// Return the digest value to the calling
|
||
|
// method as an array of bytes.
|
||
|
byte[] sha = shaDigest.digest(bout.toByteArray());
|
||
|
|
||
|
long hash = 0;
|
||
|
for (int i = 0; i < Math.min(8, sha.length); i++)
|
||
|
{
|
||
|
hash += (long) (sha[i] & 255) << (i * 8);
|
||
|
}
|
||
|
return hash;
|
||
|
}
|
||
|
catch (IOException ioex)
|
||
|
{
|
||
|
throw new Unexpected(ioex);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Converts to hexadecimal string, supplementing leading zeros.
|
||
|
*/
|
||
|
public static String toHex(long l)
|
||
|
{
|
||
|
StringBuffer b = new StringBuffer();
|
||
|
b.append(Long.toHexString(l).toUpperCase());
|
||
|
while (b.length() < 16)
|
||
|
b.insert(0, '0');
|
||
|
return b.toString();
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns a <code>String</code> representing the type-encoding of a class.
|
||
|
*/
|
||
|
static String getDescriptor(Class type)
|
||
|
{
|
||
|
if (type.equals(boolean.class))
|
||
|
return "Z";
|
||
|
if (type.equals(byte.class))
|
||
|
return "B";
|
||
|
if (type.equals(short.class))
|
||
|
return "S";
|
||
|
if (type.equals(char.class))
|
||
|
return "C";
|
||
|
if (type.equals(int.class))
|
||
|
return "I";
|
||
|
if (type.equals(long.class))
|
||
|
return "J";
|
||
|
if (type.equals(float.class))
|
||
|
return "F";
|
||
|
if (type.equals(double.class))
|
||
|
return "D";
|
||
|
if (type.equals(void.class))
|
||
|
return "V";
|
||
|
else if (type.isArray())
|
||
|
{
|
||
|
StringBuffer l = new StringBuffer("[");
|
||
|
Class component = type.getComponentType();
|
||
|
|
||
|
while (component.isArray())
|
||
|
{
|
||
|
l.append('[');
|
||
|
component = component.getComponentType();
|
||
|
}
|
||
|
|
||
|
l.append('L');
|
||
|
l.append(component.getName().replace('.', '/'));
|
||
|
l.append(';');
|
||
|
return l.toString();
|
||
|
}
|
||
|
else
|
||
|
return "L" + type.getName().replace('.', '/') + ';';
|
||
|
}
|
||
|
|
||
|
public static Field[] getWritableFields(Class c)
|
||
|
{
|
||
|
TreeSet set = new TreeSet(new Comparator()
|
||
|
{
|
||
|
public int compare(Object a, Object b)
|
||
|
{
|
||
|
return ((Field) a).getName().compareTo(((Field) b).getName());
|
||
|
}
|
||
|
});
|
||
|
|
||
|
while (!c.equals(Object.class))
|
||
|
{
|
||
|
Field[] f = c.getDeclaredFields();
|
||
|
for (int i = 0; i < f.length; i++)
|
||
|
{
|
||
|
if ((f[i].getModifiers() & NON_WRITABLE) == 0)
|
||
|
{
|
||
|
f[i].setAccessible(true);
|
||
|
set.add(f[i]);
|
||
|
}
|
||
|
}
|
||
|
c = c.getSuperclass();
|
||
|
}
|
||
|
|
||
|
Field[] r = new Field[set.size()];
|
||
|
int p = 0;
|
||
|
Iterator it = set.iterator();
|
||
|
while (it.hasNext())
|
||
|
{
|
||
|
r[p++] = (Field) it.next();
|
||
|
}
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* The method is called for Remotes that are not Stubs. It is assumed, that
|
||
|
* the Remote is an implementation. The method searches for the suitable tie
|
||
|
* and, if found, exports it by creating and connecting the stub. Such export
|
||
|
* is supported since jdk 1.5.
|
||
|
*/
|
||
|
void exportTie(org.omg.CORBA_2_3.portable.OutputStream output,
|
||
|
Object implementation, Class interfaceClass)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
// Remote, but non - stub class (implementation)
|
||
|
// must be replaced by stub.
|
||
|
Tie t = Util.getTie((Remote) implementation);
|
||
|
if (t instanceof Servant)
|
||
|
{
|
||
|
POA rootPoa = POAHelper.narrow(output.orb().resolve_initial_references(
|
||
|
"RootPOA"));
|
||
|
org.omg.CORBA.Object co = rootPoa.servant_to_reference((Servant) t);
|
||
|
Stub stub = (Stub) PortableRemoteObject.narrow(co, interfaceClass);
|
||
|
writeRemoteObject(output, stub);
|
||
|
|
||
|
if (rootPoa.the_POAManager().get_state().value() == State._HOLDING)
|
||
|
rootPoa.the_POAManager().activate();
|
||
|
}
|
||
|
else if (t instanceof org.omg.CORBA.Object)
|
||
|
{
|
||
|
org.omg.CORBA.Object co = (org.omg.CORBA.Object) t;
|
||
|
output.orb().connect(co);
|
||
|
|
||
|
Stub stub = (Stub) PortableRemoteObject.narrow(co, interfaceClass);
|
||
|
writeRemoteObject(output, stub);
|
||
|
}
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("Unable to export " + implementation);
|
||
|
m.minor = Minor.TargetConversion;
|
||
|
m.initCause(ex);
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Start the ORB, if it is not already runnning.
|
||
|
*/
|
||
|
void ensureOrbRunning(org.omg.CORBA_2_3.portable.OutputStream output)
|
||
|
{
|
||
|
// Ensure ORB is running.
|
||
|
if (output.orb() instanceof OrbFunctional)
|
||
|
{
|
||
|
((OrbFunctional) output.orb()).ensureRunning();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Write data to the CORBA output stream. Writes the object contents only; the
|
||
|
* header must be already written. For object, containing objects, may be
|
||
|
* called recursively.
|
||
|
*
|
||
|
* @param an_output a stream to write to, must be
|
||
|
* org.omg.CORBA_2_3.portable.OutputStream
|
||
|
* @param object an object to write.
|
||
|
*/
|
||
|
public void writeRemoteObject(OutputStream an_output, Object object)
|
||
|
{
|
||
|
org.omg.CORBA_2_3.portable.OutputStream output = (org.omg.CORBA_2_3.portable.OutputStream) an_output;
|
||
|
|
||
|
if (isTieRequired(object))
|
||
|
{
|
||
|
// Find the interface that is implemented by the object and extends
|
||
|
// Remote.
|
||
|
Class fc = getExportedInterface(object);
|
||
|
exportTie(output, object, fc);
|
||
|
}
|
||
|
else if (object instanceof org.omg.CORBA.Object)
|
||
|
{
|
||
|
ensureOrbRunning(output);
|
||
|
an_output.write_Object((org.omg.CORBA.Object) object);
|
||
|
}
|
||
|
else if (object != null && object instanceof Serializable)
|
||
|
writeFields(an_output, (Serializable) object);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Write data to the CORBA output stream. Writes the object contents only; the
|
||
|
* header must be already written. For object, containing objects, may be
|
||
|
* called recursively.
|
||
|
*
|
||
|
* @param an_output a stream to write to, must be
|
||
|
* org.omg.CORBA_2_3.portable.OutputStream
|
||
|
* @param object an object to write.
|
||
|
*/
|
||
|
public void writeValue(OutputStream an_output, Serializable object)
|
||
|
{
|
||
|
org.omg.CORBA_2_3.portable.OutputStream output = (org.omg.CORBA_2_3.portable.OutputStream) an_output;
|
||
|
|
||
|
if (isTieRequired(object))
|
||
|
{
|
||
|
// Find the interface that is implemented by the object and extends
|
||
|
// Remote.
|
||
|
Class fc = getExportedInterface(object);
|
||
|
exportTie(output, object, fc);
|
||
|
}
|
||
|
else if (object instanceof org.omg.CORBA.Object)
|
||
|
{
|
||
|
ensureOrbRunning(output);
|
||
|
an_output.write_Object((org.omg.CORBA.Object) object);
|
||
|
}
|
||
|
else if (object instanceof Externalizable)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
ObjectOutputStream stream = new CorbaOutput(output, object,
|
||
|
this);
|
||
|
stream.write(VERSION);
|
||
|
((Externalizable) object).writeExternal(stream);
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("writeExternal failed");
|
||
|
m.minor = Minor.Value;
|
||
|
m.initCause(ex);
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
else if (object instanceof Serializable)
|
||
|
{
|
||
|
Object mode = null;
|
||
|
synchronized (io_format)
|
||
|
{
|
||
|
mode = io_format.get(object.getClass());
|
||
|
if (mode == STANDARD)
|
||
|
{
|
||
|
writeFields(an_output, (Serializable) object);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
try
|
||
|
{
|
||
|
Method m = object.getClass().getDeclaredMethod("writeObject",
|
||
|
WRITE_OBJECT_ARGS);
|
||
|
m.setAccessible(true); // May be private.
|
||
|
|
||
|
try
|
||
|
{
|
||
|
ObjectOutputStream stream = new CorbaOutput(output,
|
||
|
object, this);
|
||
|
|
||
|
// Write version.
|
||
|
stream.write(VERSION);
|
||
|
|
||
|
if (mode == CUSTOM_DWO)
|
||
|
// Write true, supposing that the defaultWriteObject
|
||
|
// has been called.
|
||
|
stream.write(1);
|
||
|
else if (mode == CUSTOM_NO_DWO)
|
||
|
// Write false (has not been called)
|
||
|
stream.write(0);
|
||
|
else
|
||
|
{
|
||
|
// Measure.
|
||
|
DefaultWriteObjectTester tester = new DefaultWriteObjectTester(object);
|
||
|
m.invoke(object, new Object[] { tester });
|
||
|
|
||
|
synchronized (io_format)
|
||
|
{
|
||
|
io_format.put(object.getClass(),
|
||
|
tester.dwo_called ? CUSTOM_DWO : CUSTOM_NO_DWO);
|
||
|
stream.write(tester.dwo_called ? 1 : 0);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
m.invoke(object, new Object[] { stream });
|
||
|
stream.flush();
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
MARSHAL mx = new MARSHAL(object.getClass().getName()
|
||
|
+ ".writeObject failed");
|
||
|
mx.initCause(ex);
|
||
|
throw mx;
|
||
|
}
|
||
|
}
|
||
|
catch (NoSuchMethodException e)
|
||
|
{
|
||
|
// Write in a standard way.
|
||
|
writeFields(an_output, (Serializable) object);
|
||
|
synchronized (io_format)
|
||
|
{
|
||
|
io_format.put(object.getClass(), STANDARD);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Read data from the CDR input stream. Reads the object contents only; the
|
||
|
* header must be already read (the repository id or ids ara passed). For
|
||
|
* object, containing objects, may be called recursively.
|
||
|
*
|
||
|
* @param an_input the stream to read from, must be
|
||
|
* org.omg.CORBA_2_3.portable.InputStream
|
||
|
* @param object the instance of the object being read.
|
||
|
* @param id the repository Id from the stream in the case when single id was
|
||
|
* specified.
|
||
|
* @param ids the repository Ids from the stream in the case when multiple ids
|
||
|
* were specified.
|
||
|
* @param codebase the codebase, if it was included in the header of the value
|
||
|
* type. Null if not codebase was included.
|
||
|
*
|
||
|
* @return the object, extracted from the stream.
|
||
|
*/
|
||
|
/**
|
||
|
* Read value from the input stream in the case when the value is not
|
||
|
* Streamable or CustomMarshalled.
|
||
|
*/
|
||
|
public Serializable readValue(InputStream in, int offset, Class clz,
|
||
|
String repositoryID, RunTime sender)
|
||
|
{
|
||
|
if (in instanceof HeadlessInput)
|
||
|
((HeadlessInput) in).subsequentCalls = true;
|
||
|
|
||
|
gnuRuntime g;
|
||
|
Serializable object = null;
|
||
|
|
||
|
try
|
||
|
{
|
||
|
g = (gnuRuntime) sender;
|
||
|
object = g.target;
|
||
|
}
|
||
|
catch (ClassCastException e)
|
||
|
{
|
||
|
// Working with the other CORBA implementation.
|
||
|
g = null;
|
||
|
}
|
||
|
|
||
|
org.omg.CORBA_2_3.portable.InputStream input = (org.omg.CORBA_2_3.portable.InputStream) in;
|
||
|
|
||
|
if (Remote.class.isAssignableFrom(clz)
|
||
|
|| ValueBase.class.isAssignableFrom(clz))
|
||
|
{
|
||
|
// Interface is narrowed into Stub.
|
||
|
if (clz.isInterface())
|
||
|
try
|
||
|
{
|
||
|
clz = Util.loadClass(
|
||
|
PortableRemoteObjectDelegateImpl.getStubClassName(clz.getName()),
|
||
|
null, clz.getClassLoader());
|
||
|
}
|
||
|
catch (ClassNotFoundException e)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("Cannot get stub from interface "
|
||
|
+ clz.getClass().getName());
|
||
|
m.minor = Minor.TargetConversion;
|
||
|
m.initCause(e);
|
||
|
throw m;
|
||
|
}
|
||
|
|
||
|
// Remote needs special handling.
|
||
|
if (ObjectImpl.class.isAssignableFrom(clz))
|
||
|
{
|
||
|
// First read CORBA object reference.
|
||
|
Object ro = input.read_Object();
|
||
|
|
||
|
ObjectImpl obj = (ObjectImpl) ro;
|
||
|
if (obj == null)
|
||
|
return null;
|
||
|
|
||
|
Delegate delegate = obj._get_delegate();
|
||
|
object = instantiate(offset, clz, g);
|
||
|
((ObjectImpl) object)._set_delegate(delegate);
|
||
|
}
|
||
|
// The object - specific data follows.
|
||
|
}
|
||
|
else if (org.omg.CORBA.Object.class.isAssignableFrom(clz))
|
||
|
object = (Serializable) input.read_Object();
|
||
|
|
||
|
if (object == null)
|
||
|
object = instantiate(offset, clz, g);
|
||
|
|
||
|
// The sentence below prevents attempt to read the internal fields of the
|
||
|
// ObjectImpl (or RMI Stub) that might follow the object definition.
|
||
|
// Sun's jre 1.5 does not write this information. The stubs, generated
|
||
|
// by rmic, does not contain such fields.
|
||
|
if (object instanceof ObjectImpl)
|
||
|
return object;
|
||
|
|
||
|
if (object instanceof Externalizable)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
CorbaInput stream = new CorbaInput(input, object, this,
|
||
|
offset, repositoryID, g);
|
||
|
|
||
|
byte version = stream.readByte();
|
||
|
if (version != 1)
|
||
|
throw new MARSHAL("Unsuported RMI-IIOP version " + version);
|
||
|
|
||
|
((Externalizable) object).readExternal(stream);
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("readExternal failed");
|
||
|
m.initCause(ex);
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
Object mode = null;
|
||
|
synchronized (io_format)
|
||
|
{
|
||
|
mode = io_format.get(object.getClass());
|
||
|
}
|
||
|
|
||
|
if (mode == STANDARD)
|
||
|
{
|
||
|
readFields(offset, repositoryID, object, input, g);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
Method m = object.getClass().getDeclaredMethod("readObject",
|
||
|
READ_OBJECT_ARGS);
|
||
|
try
|
||
|
{
|
||
|
m.setAccessible(true); // May be private.
|
||
|
|
||
|
CorbaInput stream = new CorbaInput(input,
|
||
|
object, this, offset, repositoryID, g);
|
||
|
|
||
|
byte version = stream.readByte();
|
||
|
if (version != 1)
|
||
|
throw new MARSHAL("Unsuported RMI-IIOP version "
|
||
|
+ version);
|
||
|
|
||
|
// This would indicate is defaultWriteObject has been
|
||
|
// called,
|
||
|
// but the readObject method normally takes care about this.
|
||
|
boolean dwo = stream.readByte() != 0;
|
||
|
|
||
|
m.invoke(object, new Object[] { stream });
|
||
|
synchronized (io_format)
|
||
|
{
|
||
|
io_format.put(object.getClass(), dwo ? CUSTOM_DWO
|
||
|
: CUSTOM_NO_DWO);
|
||
|
}
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
ex.printStackTrace();
|
||
|
MARSHAL mx = new MARSHAL(object.getClass().getName()
|
||
|
+ ".readObject failed");
|
||
|
mx.initCause(ex);
|
||
|
throw mx;
|
||
|
}
|
||
|
}
|
||
|
catch (NoSuchMethodException e)
|
||
|
{
|
||
|
// Read in a standard way.
|
||
|
synchronized (io_format)
|
||
|
{
|
||
|
io_format.put(object.getClass(), STANDARD);
|
||
|
readFields(offset, repositoryID, object, input, g);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return object;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Create an instance.
|
||
|
*/
|
||
|
Serializable instantiate(int offset, Class clz, gnuRuntime g)
|
||
|
throws MARSHAL
|
||
|
{
|
||
|
Serializable object;
|
||
|
try
|
||
|
{
|
||
|
object = (Serializable) Vio.instantiateAnyWay(clz);
|
||
|
g.objectWritten(object, offset);
|
||
|
}
|
||
|
catch (Exception e)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("Unable to instantiate " + clz);
|
||
|
m.minor = Minor.Instantiation;
|
||
|
m.initCause(e);
|
||
|
throw m;
|
||
|
}
|
||
|
return object;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Read fields of the object.
|
||
|
*/
|
||
|
void readFields(int offset, String repositoryID, Serializable object,
|
||
|
org.omg.CORBA_2_3.portable.InputStream input, gnuRuntime r)
|
||
|
throws MARSHAL
|
||
|
{
|
||
|
Field f = null;
|
||
|
Class o_class = object.getClass();
|
||
|
|
||
|
try
|
||
|
{
|
||
|
// The returned field array must already be in canonical order.
|
||
|
Field[] fields = getWritableFields(o_class);
|
||
|
|
||
|
Class fc;
|
||
|
|
||
|
for (int i = 0; i < fields.length; i++)
|
||
|
{
|
||
|
// Full value type header expected ahead.
|
||
|
if (input instanceof HeadlessInput)
|
||
|
((HeadlessInput) input).subsequentCalls = true;
|
||
|
|
||
|
f = fields[i];
|
||
|
fc = f.getType();
|
||
|
|
||
|
Object v;
|
||
|
|
||
|
if (fc == String.class)
|
||
|
{
|
||
|
v = input.read_value(wStringValueHelper);
|
||
|
}
|
||
|
else if (fc == int.class)
|
||
|
v = new Integer(input.read_long());
|
||
|
else if (fc == long.class)
|
||
|
v = new Long(input.read_longlong());
|
||
|
else if (fc == double.class)
|
||
|
v = new Double(input.read_double());
|
||
|
else if (fc == float.class)
|
||
|
v = new Float(input.read_float());
|
||
|
else if (fc == boolean.class)
|
||
|
v = input.read_boolean() ? Boolean.TRUE : Boolean.FALSE;
|
||
|
else if (fc == short.class)
|
||
|
v = new Short(input.read_short());
|
||
|
else if (fc == byte.class)
|
||
|
v = new Byte(input.read_octet());
|
||
|
else if (fc == char.class)
|
||
|
v = new Character(input.read_char());
|
||
|
else if (org.omg.CORBA.Object.class.isAssignableFrom(fc)
|
||
|
|| Remote.class.isAssignableFrom(fc))
|
||
|
{
|
||
|
v = readValue(input, offset, fc, null, r);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
v = Vio.read(input, fc);
|
||
|
}
|
||
|
|
||
|
f.set(object, v);
|
||
|
}
|
||
|
}
|
||
|
catch (Exception ex)
|
||
|
{
|
||
|
MARSHAL m = new MARSHAL("Cannot read " + o_class.getName() + " field "
|
||
|
+ f);
|
||
|
m.initCause(ex);
|
||
|
m.minor = Minor.ValueFields;
|
||
|
throw m;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|