public abstract class InputStreamHook extends ObjectInputStream {
// These should be visible in all the nested classes
static final OMGSystemException omgWrapper = OMGSystemException.get(CORBALogDomains.RPC_ENCODING);
static final UtilSystemException utilWrapper =
UtilSystemException.get(CORBALogDomains.RPC_ENCODING);
private class HookGetFields extends ObjectInputStream.GetField {
private Map fields = null;
HookGetFields(Map fields) {
this.fields = fields;
}
/**
* Get the ObjectStreamClass that describes the fields in the stream.
*
* <p>REVISIT! This doesn't work since we have our own ObjectStreamClass.
*/
public java.io.ObjectStreamClass getObjectStreamClass() {
return null;
}
/** Return true if the named field is defaulted and has no value in this stream. */
public boolean defaulted(String name) throws IOException, IllegalArgumentException {
return (!fields.containsKey(name));
}
/** Get the value of the named boolean field from the persistent field. */
public boolean get(String name, boolean defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Boolean) fields.get(name)).booleanValue();
}
/** Get the value of the named char field from the persistent fields. */
public char get(String name, char defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Character) fields.get(name)).charValue();
}
/** Get the value of the named byte field from the persistent fields. */
public byte get(String name, byte defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Byte) fields.get(name)).byteValue();
}
/** Get the value of the named short field from the persistent fields. */
public short get(String name, short defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Short) fields.get(name)).shortValue();
}
/** Get the value of the named int field from the persistent fields. */
public int get(String name, int defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Integer) fields.get(name)).intValue();
}
/** Get the value of the named long field from the persistent fields. */
public long get(String name, long defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Long) fields.get(name)).longValue();
}
/** Get the value of the named float field from the persistent fields. */
public float get(String name, float defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Float) fields.get(name)).floatValue();
}
/** Get the value of the named double field from the persistent field. */
public double get(String name, double defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return ((Double) fields.get(name)).doubleValue();
}
/** Get the value of the named Object field from the persistent field. */
public Object get(String name, Object defvalue) throws IOException, IllegalArgumentException {
if (defaulted(name)) return defvalue;
else return fields.get(name);
}
public String toString() {
return fields.toString();
}
}
public InputStreamHook() throws IOException {
super();
}
public void defaultReadObject() throws IOException, ClassNotFoundException, NotActiveException {
readObjectState.beginDefaultReadObject(this);
defaultReadObjectDelegate();
readObjectState.endDefaultReadObject(this);
}
public abstract void defaultReadObjectDelegate();
abstract void readFields(java.util.Map fieldToValueMap)
throws java.io.InvalidClassException, java.io.StreamCorruptedException,
ClassNotFoundException, java.io.IOException;
// See java.io.ObjectInputStream.GetField
// Remember that this is equivalent to defaultReadObject
// in RMI-IIOP
public ObjectInputStream.GetField readFields()
throws IOException, ClassNotFoundException, NotActiveException {
HashMap fieldValueMap = new HashMap();
// We were treating readFields same as defaultReadObject. It is
// incorrect if the state is readOptionalData. If this line
// is uncommented, it will throw a stream corrupted exception.
// _REVISIT_: The ideal fix would be to add a new state. In
// writeObject user may do one of the following
// 1. Call defaultWriteObject()
// 2. Put out optional fields
// 3. Call writeFields
// We have the state defined for (1) and (2) but not for (3), so
// we should ideally introduce a new state for 3 and have the
// beginDefaultReadObject do nothing.
// readObjectState.beginDefaultReadObject(this);
readFields(fieldValueMap);
readObjectState.endDefaultReadObject(this);
return new HookGetFields(fieldValueMap);
}
// The following is a State pattern implementation of what
// should be done when the sender's Serializable has a
// writeObject method. This was especially necessary for
// RMI-IIOP stream format version 2. Please see the
// state diagrams in the docs directory of the workspace.
//
// On the reader's side, the main factors are whether or not
// we have a readObject method and whether or not the
// sender wrote default data
protected void setState(ReadObjectState newState) {
readObjectState = newState;
}
protected abstract byte getStreamFormatVersion();
protected abstract org.omg.CORBA_2_3.portable.InputStream getOrbStream();
// Description of possible actions
protected static class ReadObjectState {
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject)
throws IOException {}
public void endUnmarshalCustomValue(InputStreamHook stream) throws IOException {}
public void beginDefaultReadObject(InputStreamHook stream) throws IOException {}
public void endDefaultReadObject(InputStreamHook stream) throws IOException {}
public void readData(InputStreamHook stream) throws IOException {}
}
protected ReadObjectState readObjectState = DEFAULT_STATE;
protected static final ReadObjectState DEFAULT_STATE = new DefaultState();
protected static final ReadObjectState IN_READ_OBJECT_OPT_DATA =
new InReadObjectOptionalDataState();
protected static final ReadObjectState IN_READ_OBJECT_NO_MORE_OPT_DATA =
new InReadObjectNoMoreOptionalDataState();
protected static final ReadObjectState IN_READ_OBJECT_DEFAULTS_SENT =
new InReadObjectDefaultsSentState();
protected static final ReadObjectState NO_READ_OBJECT_DEFAULTS_SENT =
new NoReadObjectDefaultsSentState();
protected static final ReadObjectState IN_READ_OBJECT_REMOTE_NOT_CUSTOM_MARSHALED =
new InReadObjectRemoteDidNotUseWriteObjectState();
protected static final ReadObjectState IN_READ_OBJECT_PAST_DEFAULTS_REMOTE_NOT_CUSTOM =
new InReadObjectPastDefaultsRemoteDidNotUseWOState();
protected static class DefaultState extends ReadObjectState {
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject)
throws IOException {
if (hasReadObject) {
if (calledDefaultWriteObject) stream.setState(IN_READ_OBJECT_DEFAULTS_SENT);
else {
try {
if (stream.getStreamFormatVersion() == 2)
((ValueInputStream) stream.getOrbStream()).start_value();
} catch (Exception e) {
// This will happen for Big Integer which uses
// writeFields in it's writeObject. We should be past
// start_value by now.
// NOTE: If we don't log any exception here we should
// be fine. If there is an error, it will be caught
// while reading the optional data.
}
stream.setState(IN_READ_OBJECT_OPT_DATA);
}
} else {
if (calledDefaultWriteObject) stream.setState(NO_READ_OBJECT_DEFAULTS_SENT);
else
// XXX I18N and logging needed.
throw new StreamCorruptedException("No default data sent");
}
}
}
// REVISIT. If a readObject exits here without reading
// default data, we won't skip it. This could be done automatically
// as in line 1492 in IIOPInputStream.
protected static class InReadObjectRemoteDidNotUseWriteObjectState extends ReadObjectState {
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject) {
throw utilWrapper.badBeginUnmarshalCustomValue();
}
public void endDefaultReadObject(InputStreamHook stream) {
stream.setState(IN_READ_OBJECT_PAST_DEFAULTS_REMOTE_NOT_CUSTOM);
}
public void readData(InputStreamHook stream) {
stream.throwOptionalDataIncompatibleException();
}
}
protected static class InReadObjectPastDefaultsRemoteDidNotUseWOState extends ReadObjectState {
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject) {
throw utilWrapper.badBeginUnmarshalCustomValue();
}
public void beginDefaultReadObject(InputStreamHook stream) throws IOException {
// XXX I18N and logging needed.
throw new StreamCorruptedException("Default data already read");
}
public void readData(InputStreamHook stream) {
stream.throwOptionalDataIncompatibleException();
}
}
protected void throwOptionalDataIncompatibleException() {
throw omgWrapper.rmiiiopOptionalDataIncompatible2();
}
protected static class InReadObjectDefaultsSentState extends ReadObjectState {
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject) {
// This should never happen.
throw utilWrapper.badBeginUnmarshalCustomValue();
}
public void endUnmarshalCustomValue(InputStreamHook stream) {
// In stream format version 2, we can skip over
// the optional data this way. In stream format version 1,
// we will probably wind up with an error if we're
// unmarshaling a superclass.
if (stream.getStreamFormatVersion() == 2) {
((ValueInputStream) stream.getOrbStream()).start_value();
((ValueInputStream) stream.getOrbStream()).end_value();
}
stream.setState(DEFAULT_STATE);
}
public void endDefaultReadObject(InputStreamHook stream) throws IOException {
// Read the fake valuetype header in stream format version 2
if (stream.getStreamFormatVersion() == 2)
((ValueInputStream) stream.getOrbStream()).start_value();
stream.setState(IN_READ_OBJECT_OPT_DATA);
}
public void readData(InputStreamHook stream) throws IOException {
org.omg.CORBA.ORB orb = stream.getOrbStream().orb();
if ((orb == null) || !(orb instanceof com.sun.corba.se.spi.orb.ORB)) {
throw new StreamCorruptedException("Default data must be read first");
}
ORBVersion clientOrbVersion = ((com.sun.corba.se.spi.orb.ORB) orb).getORBVersion();
// Fix Date interop bug. For older versions of the ORB don't do
// anything for readData(). Before this used to throw
// StreamCorruptedException for older versions of the ORB where
// calledDefaultWriteObject always returns true.
if ((ORBVersionFactory.getPEORB().compareTo(clientOrbVersion) <= 0)
|| (clientOrbVersion.equals(ORBVersionFactory.getFOREIGN()))) {
// XXX I18N and logging needed.
throw new StreamCorruptedException("Default data must be read first");
}
}
}
protected static class InReadObjectOptionalDataState extends ReadObjectState {
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject) {
// This should never happen.
throw utilWrapper.badBeginUnmarshalCustomValue();
}
public void endUnmarshalCustomValue(InputStreamHook stream) throws IOException {
if (stream.getStreamFormatVersion() == 2) {
((ValueInputStream) stream.getOrbStream()).end_value();
}
stream.setState(DEFAULT_STATE);
}
public void beginDefaultReadObject(InputStreamHook stream) throws IOException {
// XXX I18N and logging needed.
throw new StreamCorruptedException("Default data not sent or already read/passed");
}
}
protected static class InReadObjectNoMoreOptionalDataState extends InReadObjectOptionalDataState {
public void readData(InputStreamHook stream) throws IOException {
stream.throwOptionalDataIncompatibleException();
}
}
protected static class NoReadObjectDefaultsSentState extends ReadObjectState {
public void endUnmarshalCustomValue(InputStreamHook stream) throws IOException {
// Code should read default fields before calling this
if (stream.getStreamFormatVersion() == 2) {
((ValueInputStream) stream.getOrbStream()).start_value();
((ValueInputStream) stream.getOrbStream()).end_value();
}
stream.setState(DEFAULT_STATE);
}
}
}
/**
* Maps a SystemException to a RemoteException.
*
* @param ex the SystemException to map.
* @return the mapped exception.
*/
public RemoteException mapSystemException(SystemException ex) {
if (ex instanceof UnknownException) {
Throwable orig = ((UnknownException) ex).originalEx;
if (orig instanceof Error) {
return new ServerError("Error occurred in server thread", (Error) orig);
} else if (orig instanceof RemoteException) {
return new ServerException("RemoteException occurred in server thread", (Exception) orig);
} else if (orig instanceof RuntimeException) {
throw (RuntimeException) orig;
}
}
// Build the message string...
String name = ex.getClass().getName();
String corbaName = name.substring(name.lastIndexOf('.') + 1);
String status;
switch (ex.completed.value()) {
case CompletionStatus._COMPLETED_YES:
status = "Yes";
break;
case CompletionStatus._COMPLETED_NO:
status = "No";
break;
case CompletionStatus._COMPLETED_MAYBE:
default:
status = "Maybe";
break;
}
String message = "CORBA " + corbaName + " " + ex.minor + " " + status;
// Now map to the correct RemoteException type...
if (ex instanceof COMM_FAILURE) {
return new MarshalException(message, ex);
} else if (ex instanceof INV_OBJREF) {
RemoteException newEx = new NoSuchObjectException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof NO_PERMISSION) {
return new AccessException(message, ex);
} else if (ex instanceof MARSHAL) {
return new MarshalException(message, ex);
} else if (ex instanceof OBJECT_NOT_EXIST) {
RemoteException newEx = new NoSuchObjectException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof TRANSACTION_REQUIRED) {
RemoteException newEx = new TransactionRequiredException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof TRANSACTION_ROLLEDBACK) {
RemoteException newEx = new TransactionRolledbackException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof INVALID_TRANSACTION) {
RemoteException newEx = new InvalidTransactionException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof BAD_PARAM) {
Exception inner = ex;
// Pre-Merlin Sun ORBs used the incorrect minor code for
// this case. See Java to IDL ptc-00-01-08 1.4.8.
if (ex.minor == ORBConstants.LEGACY_SUN_NOT_SERIALIZABLE
|| ex.minor == OMGSystemException.NOT_SERIALIZABLE) {
if (ex.getMessage() != null) inner = new NotSerializableException(ex.getMessage());
else inner = new NotSerializableException();
inner.initCause(ex);
}
return new MarshalException(message, inner);
} else if (ex instanceof ACTIVITY_REQUIRED) {
try {
Class<?> cl =
SharedSecrets.getJavaCorbaAccess()
.loadClass("javax.activity.ActivityRequiredException");
Class[] params = new Class[2];
params[0] = java.lang.String.class;
params[1] = java.lang.Throwable.class;
Constructor cr = cl.getConstructor(params);
Object[] args = new Object[2];
args[0] = message;
args[1] = ex;
return (RemoteException) cr.newInstance(args);
} catch (Throwable e) {
utilWrapper.classNotFound(e, "javax.activity.ActivityRequiredException");
}
} else if (ex instanceof ACTIVITY_COMPLETED) {
try {
Class<?> cl =
SharedSecrets.getJavaCorbaAccess()
.loadClass("javax.activity.ActivityCompletedException");
Class[] params = new Class[2];
params[0] = java.lang.String.class;
params[1] = java.lang.Throwable.class;
Constructor cr = cl.getConstructor(params);
Object[] args = new Object[2];
args[0] = message;
args[1] = ex;
return (RemoteException) cr.newInstance(args);
} catch (Throwable e) {
utilWrapper.classNotFound(e, "javax.activity.ActivityCompletedException");
}
} else if (ex instanceof INVALID_ACTIVITY) {
try {
Class<?> cl =
SharedSecrets.getJavaCorbaAccess().loadClass("javax.activity.InvalidActivityException");
Class[] params = new Class[2];
params[0] = java.lang.String.class;
params[1] = java.lang.Throwable.class;
Constructor cr = cl.getConstructor(params);
Object[] args = new Object[2];
args[0] = message;
args[1] = ex;
return (RemoteException) cr.newInstance(args);
} catch (Throwable e) {
utilWrapper.classNotFound(e, "javax.activity.InvalidActivityException");
}
}
// Just map to a generic RemoteException...
return new RemoteException(message, ex);
}
public void beginUnmarshalCustomValue(
InputStreamHook stream, boolean calledDefaultWriteObject, boolean hasReadObject) {
// This should never happen.
throw utilWrapper.badBeginUnmarshalCustomValue();
}
/** Provides utility methods that can be used by stubs and ties to perform common operations. */
public class Util implements javax.rmi.CORBA.UtilDelegate {
// Runs as long as there are exportedServants
private static KeepAlive keepAlive = null;
// Maps targets to ties.
private static IdentityHashtable exportedServants = new IdentityHashtable();
private static final ValueHandlerImpl valueHandlerSingleton =
SharedSecrets.getJavaCorbaAccess().newValueHandlerImpl();
private UtilSystemException utilWrapper = UtilSystemException.get(CORBALogDomains.RPC_ENCODING);
private static Util instance = null;
public Util() {
setInstance(this);
}
private static void setInstance(Util util) {
assert instance == null : "Instance already defined";
instance = util;
}
public static Util getInstance() {
return instance;
}
public static boolean isInstanceDefined() {
return instance != null;
}
// Used by TOAFactory.shutdown to unexport all targets for this
// particular ORB. This happens during ORB shutdown.
public void unregisterTargetsForORB(org.omg.CORBA.ORB orb) {
for (Enumeration e = exportedServants.keys(); e.hasMoreElements(); ) {
java.lang.Object key = e.nextElement();
Remote target = (Remote) (key instanceof Tie ? ((Tie) key).getTarget() : key);
// Bug 4476347: BAD_OPERATION is thrown if the ties delegate isn't set.
// We can ignore this because it means the tie is not connected to an ORB.
try {
if (orb == getTie(target).orb()) {
try {
unexportObject(target);
} catch (java.rmi.NoSuchObjectException ex) {
// We neglect this exception if at all if it is
// raised. It is not harmful.
}
}
} catch (BAD_OPERATION bad) {
/* Ignore */
}
}
}
/**
* Maps a SystemException to a RemoteException.
*
* @param ex the SystemException to map.
* @return the mapped exception.
*/
public RemoteException mapSystemException(SystemException ex) {
if (ex instanceof UnknownException) {
Throwable orig = ((UnknownException) ex).originalEx;
if (orig instanceof Error) {
return new ServerError("Error occurred in server thread", (Error) orig);
} else if (orig instanceof RemoteException) {
return new ServerException("RemoteException occurred in server thread", (Exception) orig);
} else if (orig instanceof RuntimeException) {
throw (RuntimeException) orig;
}
}
// Build the message string...
String name = ex.getClass().getName();
String corbaName = name.substring(name.lastIndexOf('.') + 1);
String status;
switch (ex.completed.value()) {
case CompletionStatus._COMPLETED_YES:
status = "Yes";
break;
case CompletionStatus._COMPLETED_NO:
status = "No";
break;
case CompletionStatus._COMPLETED_MAYBE:
default:
status = "Maybe";
break;
}
String message = "CORBA " + corbaName + " " + ex.minor + " " + status;
// Now map to the correct RemoteException type...
if (ex instanceof COMM_FAILURE) {
return new MarshalException(message, ex);
} else if (ex instanceof INV_OBJREF) {
RemoteException newEx = new NoSuchObjectException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof NO_PERMISSION) {
return new AccessException(message, ex);
} else if (ex instanceof MARSHAL) {
return new MarshalException(message, ex);
} else if (ex instanceof OBJECT_NOT_EXIST) {
RemoteException newEx = new NoSuchObjectException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof TRANSACTION_REQUIRED) {
RemoteException newEx = new TransactionRequiredException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof TRANSACTION_ROLLEDBACK) {
RemoteException newEx = new TransactionRolledbackException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof INVALID_TRANSACTION) {
RemoteException newEx = new InvalidTransactionException(message);
newEx.detail = ex;
return newEx;
} else if (ex instanceof BAD_PARAM) {
Exception inner = ex;
// Pre-Merlin Sun ORBs used the incorrect minor code for
// this case. See Java to IDL ptc-00-01-08 1.4.8.
if (ex.minor == ORBConstants.LEGACY_SUN_NOT_SERIALIZABLE
|| ex.minor == OMGSystemException.NOT_SERIALIZABLE) {
if (ex.getMessage() != null) inner = new NotSerializableException(ex.getMessage());
else inner = new NotSerializableException();
inner.initCause(ex);
}
return new MarshalException(message, inner);
} else if (ex instanceof ACTIVITY_REQUIRED) {
try {
Class<?> cl =
SharedSecrets.getJavaCorbaAccess()
.loadClass("javax.activity.ActivityRequiredException");
Class[] params = new Class[2];
params[0] = java.lang.String.class;
params[1] = java.lang.Throwable.class;
Constructor cr = cl.getConstructor(params);
Object[] args = new Object[2];
args[0] = message;
args[1] = ex;
return (RemoteException) cr.newInstance(args);
} catch (Throwable e) {
utilWrapper.classNotFound(e, "javax.activity.ActivityRequiredException");
}
} else if (ex instanceof ACTIVITY_COMPLETED) {
try {
Class<?> cl =
SharedSecrets.getJavaCorbaAccess()
.loadClass("javax.activity.ActivityCompletedException");
Class[] params = new Class[2];
params[0] = java.lang.String.class;
params[1] = java.lang.Throwable.class;
Constructor cr = cl.getConstructor(params);
Object[] args = new Object[2];
args[0] = message;
args[1] = ex;
return (RemoteException) cr.newInstance(args);
} catch (Throwable e) {
utilWrapper.classNotFound(e, "javax.activity.ActivityCompletedException");
}
} else if (ex instanceof INVALID_ACTIVITY) {
try {
Class<?> cl =
SharedSecrets.getJavaCorbaAccess().loadClass("javax.activity.InvalidActivityException");
Class[] params = new Class[2];
params[0] = java.lang.String.class;
params[1] = java.lang.Throwable.class;
Constructor cr = cl.getConstructor(params);
Object[] args = new Object[2];
args[0] = message;
args[1] = ex;
return (RemoteException) cr.newInstance(args);
} catch (Throwable e) {
utilWrapper.classNotFound(e, "javax.activity.InvalidActivityException");
}
}
// Just map to a generic RemoteException...
return new RemoteException(message, ex);
}
/**
* Writes any java.lang.Object as a CORBA any.
*
* @param out the stream in which to write the any.
* @param obj the object to write as an any.
*/
public void writeAny(org.omg.CORBA.portable.OutputStream out, java.lang.Object obj) {
org.omg.CORBA.ORB orb = out.orb();
// Create Any
Any any = orb.create_any();
// Make sure we have a connected object...
java.lang.Object newObj = Utility.autoConnect(obj, orb, false);
if (newObj instanceof org.omg.CORBA.Object) {
any.insert_Object((org.omg.CORBA.Object) newObj);
} else {
if (newObj == null) {
// Handle the null case, including backwards
// compatibility issues
any.insert_Value(null, createTypeCodeForNull(orb));
} else {
if (newObj instanceof Serializable) {
// If they're our Any and ORB implementations,
// we may want to do type code related versioning.
TypeCode tc = createTypeCode((Serializable) newObj, any, orb);
if (tc == null) any.insert_Value((Serializable) newObj);
else any.insert_Value((Serializable) newObj, tc);
} else if (newObj instanceof Remote) {
ORBUtility.throwNotSerializableForCorba(newObj.getClass().getName());
} else {
ORBUtility.throwNotSerializableForCorba(newObj.getClass().getName());
}
}
}
out.write_any(any);
}
/**
* When using our own ORB and Any implementations, we need to get the ORB version and create the
* type code appropriately. This is to overcome a bug in which the JDK 1.3.x ORBs used a tk_char
* rather than a tk_wchar to describe a Java char field.
*
* <p>This only works in RMI-IIOP with Util.writeAny since we actually know what ORB and stream
* we're writing with when we insert the value.
*
* <p>Returns null if it wasn't possible to create the TypeCode (means it wasn't our ORB or Any
* implementation).
*
* <p>This does not handle null objs.
*/
private TypeCode createTypeCode(Serializable obj, org.omg.CORBA.Any any, org.omg.CORBA.ORB orb) {
if (any instanceof com.sun.corba.se.impl.corba.AnyImpl && orb instanceof ORB) {
com.sun.corba.se.impl.corba.AnyImpl anyImpl = (com.sun.corba.se.impl.corba.AnyImpl) any;
ORB ourORB = (ORB) orb;
return anyImpl.createTypeCodeForClass(obj.getClass(), ourORB);
} else return null;
}
/**
* This is used to create the TypeCode for a null reference. It also handles backwards
* compatibility with JDK 1.3.x.
*
* <p>This method will not return null.
*/
private TypeCode createTypeCodeForNull(org.omg.CORBA.ORB orb) {
if (orb instanceof ORB) {
ORB ourORB = (ORB) orb;
// Preserve backwards compatibility with Kestrel and Ladybird
// by not fully implementing interop issue resolution 3857,
// and returning a null TypeCode with a tk_value TCKind.
// If we're not talking to Kestrel or Ladybird, fall through
// to the abstract interface case (also used for foreign ORBs).
if (!ORBVersionFactory.getFOREIGN().equals(ourORB.getORBVersion())
&& ORBVersionFactory.getNEWER().compareTo(ourORB.getORBVersion()) > 0) {
return orb.get_primitive_tc(TCKind.tk_value);
}
}
// Use tk_abstract_interface as detailed in the resolution
// REVISIT: Define this in IDL and get the ID in generated code
String abstractBaseID = "IDL:omg.org/CORBA/AbstractBase:1.0";
return orb.create_abstract_interface_tc(abstractBaseID, "");
}
/**
* Reads a java.lang.Object as a CORBA any.
*
* @param in the stream from which to read the any.
* @return the object read from the stream.
*/
public Object readAny(InputStream in) {
Any any = in.read_any();
if (any.type().kind().value() == TCKind._tk_objref) return any.extract_Object();
else return any.extract_Value();
}
/**
* Writes a java.lang.Object as a CORBA Object. If <code>obj</code> is an exported RMI-IIOP server
* object, the tie is found and wired to <code>obj</code>, then written to <code>
* out.write_Object(org.omg.CORBA.Object)</code>. If <code>obj</code> is a CORBA Object, it is
* written to <code>out.write_Object(org.omg.CORBA.Object)</code>.
*
* @param out the stream in which to write the object.
* @param obj the object to write.
*/
public void writeRemoteObject(OutputStream out, java.lang.Object obj) {
// Make sure we have a connected object, then
// write it out...
Object newObj = Utility.autoConnect(obj, out.orb(), false);
out.write_Object((org.omg.CORBA.Object) newObj);
}
/**
* Writes a java.lang.Object as either a value or a CORBA Object. If <code>obj</code> is a value
* object or a stub object, it is written to <code>out.write_abstract_interface(java.lang.Object)
* </code>. If <code>obj</code> is an exported RMI-IIOP server object, the tie is found and wired
* to <code>obj</code>, then written to <code>out.write_abstract_interface(java.lang.Object)
* </code>.
*
* @param out the stream in which to write the object.
* @param obj the object to write.
*/
public void writeAbstractObject(OutputStream out, java.lang.Object obj) {
// Make sure we have a connected object, then
// write it out...
Object newObj = Utility.autoConnect(obj, out.orb(), false);
((org.omg.CORBA_2_3.portable.OutputStream) out).write_abstract_interface(newObj);
}
/**
* Registers a target for a tie. Adds the tie to an internal table and calls {@link Tie#setTarget}
* on the tie object.
*
* @param tie the tie to register.
* @param target the target for the tie.
*/
public void registerTarget(javax.rmi.CORBA.Tie tie, java.rmi.Remote target) {
synchronized (exportedServants) {
// Do we already have this target registered?
if (lookupTie(target) == null) {
// No, so register it and set the target...
exportedServants.put(target, tie);
tie.setTarget(target);
// Do we need to instantiate our keep-alive thread?
if (keepAlive == null) {
// Yes. Instantiate our keep-alive thread and start
// it up...
keepAlive =
(KeepAlive)
AccessController.doPrivileged(
new PrivilegedAction() {
public java.lang.Object run() {
return new KeepAlive();
}
});
keepAlive.start();
}
}
}
}
/**
* Removes the associated tie from an internal table and calls {@link Tie#deactivate} to
* deactivate the object.
*
* @param target the object to unexport.
*/
public void unexportObject(java.rmi.Remote target) throws java.rmi.NoSuchObjectException {
synchronized (exportedServants) {
Tie cachedTie = lookupTie(target);
if (cachedTie != null) {
exportedServants.remove(target);
Utility.purgeStubForTie(cachedTie);
Utility.purgeTieAndServant(cachedTie);
try {
cleanUpTie(cachedTie);
} catch (BAD_OPERATION e) {
// ignore
} catch (org.omg.CORBA.OBJ_ADAPTER e) {
// This can happen when the target was never associated with a POA.
// We can safely ignore this case.
}
// Is it time to shut down our keep alive thread?
if (exportedServants.isEmpty()) {
keepAlive.quit();
keepAlive = null;
}
} else {
throw new java.rmi.NoSuchObjectException("Tie not found");
}
}
}
protected void cleanUpTie(Tie cachedTie) throws java.rmi.NoSuchObjectException {
cachedTie.setTarget(null);
cachedTie.deactivate();
}
/**
* Returns the tie (if any) for a given target object.
*
* @return the tie or null if no tie is registered for the given target.
*/
public Tie getTie(Remote target) {
synchronized (exportedServants) {
return lookupTie(target);
}
}
/** An unsynchronized version of getTie() for internal use. */
private static Tie lookupTie(Remote target) {
Tie result = (Tie) exportedServants.get(target);
if (result == null && target instanceof Tie) {
if (exportedServants.contains(target)) {
result = (Tie) target;
}
}
return result;
}
/**
* Returns a singleton instance of a class that implements the {@link ValueHandler} interface.
*
* @return a class which implements the ValueHandler interface.
*/
public ValueHandler createValueHandler() {
return valueHandlerSingleton;
}
/**
* Returns the codebase, if any, for the given class.
*
* @param clz the class to get a codebase for.
* @return a space-separated list of URLs, or null.
*/
public String getCodebase(java.lang.Class clz) {
return RMIClassLoader.getClassAnnotation(clz);
}
/**
* Returns a class instance for the specified class.
*
* @param className the name of the class.
* @param remoteCodebase a space-separated list of URLs at which the class might be found. May be
* null.
* @param loadingContext a class whose ClassLoader may be used to load the class if all other
* methods fail.
* @return the <code>Class</code> object representing the loaded class.
* @exception ClassNotFoundException if class cannot be loaded.
*/
public Class loadClass(String className, String remoteCodebase, ClassLoader loader)
throws ClassNotFoundException {
return JDKBridge.loadClass(className, remoteCodebase, loader);
}
/**
* The <tt>isLocal</tt> method has the same semantics as the ObjectImpl._is_local method, except
* that it can throw a RemoteException. (no it doesn't but the spec says it should.)
*
* <p>The <tt>_is_local()</tt> method is provided so that stubs may determine if a particular
* object is implemented by a local servant and hence local invocation APIs may be used.
*
* @param stub the stub to test.
* @return The <tt>_is_local()</tt> method returns true if the servant incarnating the object is
* located in the same process as the stub and they both share the same ORB instance. The
* <tt>_is_local()</tt> method returns false otherwise. The default behavior of
* <tt>_is_local()</tt> is to return false.
* @throws RemoteException The Java to IDL specification does to specify the conditions that cause
* a RemoteException to be thrown.
*/
public boolean isLocal(javax.rmi.CORBA.Stub stub) throws RemoteException {
boolean result = false;
try {
org.omg.CORBA.portable.Delegate delegate = stub._get_delegate();
if (delegate instanceof CorbaClientDelegate) {
// For the Sun ORB
CorbaClientDelegate cdel = (CorbaClientDelegate) delegate;
ContactInfoList cil = cdel.getContactInfoList();
if (cil instanceof CorbaContactInfoList) {
CorbaContactInfoList ccil = (CorbaContactInfoList) cil;
LocalClientRequestDispatcher lcs = ccil.getLocalClientRequestDispatcher();
result = lcs.useLocalInvocation(null);
}
} else {
// For a non-Sun ORB
result = delegate.is_local(stub);
}
} catch (SystemException e) {
throw javax.rmi.CORBA.Util.mapSystemException(e);
}
return result;
}
/**
* Wraps an exception thrown by an implementation method. It returns the corresponding client-side
* exception.
*
* @param orig the exception to wrap.
* @return the wrapped exception.
*/
public RemoteException wrapException(Throwable orig) {
if (orig instanceof SystemException) {
return mapSystemException((SystemException) orig);
}
if (orig instanceof Error) {
return new ServerError("Error occurred in server thread", (Error) orig);
} else if (orig instanceof RemoteException) {
return new ServerException("RemoteException occurred in server thread", (Exception) orig);
} else if (orig instanceof RuntimeException) {
throw (RuntimeException) orig;
}
if (orig instanceof Exception)
return new UnexpectedException(orig.toString(), (Exception) orig);
else return new UnexpectedException(orig.toString());
}
/**
* Copies or connects an array of objects. Used by local stubs to copy any number of actual
* parameters, preserving sharing across parameters as necessary to support RMI semantics.
*
* @param obj the objects to copy or connect.
* @param orb the ORB.
* @return the copied or connected objects.
* @exception RemoteException if any object could not be copied or connected.
*/
public Object[] copyObjects(Object[] obj, org.omg.CORBA.ORB orb) throws RemoteException {
if (obj == null)
// Bug fix for 5018613: JCK test expects copyObjects to throw
// NPE when obj==null. This is actually not in the spec, since
// obj is not really an RMI-IDL data type, but we follow our
// test here, and force this error to be thrown.
throw new NullPointerException();
Class compType = obj.getClass().getComponentType();
if (Remote.class.isAssignableFrom(compType) && !compType.isInterface()) {
// obj is an array of remote impl types. This
// causes problems with stream copier, so we copy
// it over to an array of Remotes instead.
Remote[] result = new Remote[obj.length];
System.arraycopy((Object) obj, 0, (Object) result, 0, obj.length);
return (Object[]) copyObject(result, orb);
} else return (Object[]) copyObject(obj, orb);
}
/**
* Copies or connects an object. Used by local stubs to copy an actual parameter, result object,
* or exception.
*
* @param obj the object to copy.
* @param orb the ORB.
* @return the copy or connected object.
* @exception RemoteException if the object could not be copied or connected.
*/
public Object copyObject(Object obj, org.omg.CORBA.ORB orb) throws RemoteException {
if (orb instanceof ORB) {
ORB lorb = (ORB) orb;
try {
try {
// This gets the copier for the current invocation, which was
// previously set by preinvoke.
return lorb.peekInvocationInfo().getCopierFactory().make().copy(obj);
} catch (java.util.EmptyStackException exc) {
// copyObject was invoked outside of an invocation, probably by
// a test. Get the default copier from the ORB.
// XXX should we just make the default copier available directly
// and avoid constructing one on each call?
CopierManager cm = lorb.getCopierManager();
ObjectCopier copier = cm.getDefaultObjectCopierFactory().make();
return copier.copy(obj);
}
} catch (ReflectiveCopyException exc) {
RemoteException rexc = new RemoteException();
rexc.initCause(exc);
throw rexc;
}
} else {
org.omg.CORBA_2_3.portable.OutputStream out =
(org.omg.CORBA_2_3.portable.OutputStream) orb.create_output_stream();
out.write_value((Serializable) obj);
org.omg.CORBA_2_3.portable.InputStream in =
(org.omg.CORBA_2_3.portable.InputStream) out.create_input_stream();
return in.read_value();
}
}
}
