javax.rmi.CORBA.Util Java Examples

/**
 * Returns the maximum stream format version supported by our
 * ValueHandler.
 */
public static byte getMaxStreamFormatVersion() {
    ValueHandler vh;
    try {
        vh = AccessController.doPrivileged(new PrivilegedExceptionAction<ValueHandler>() {
            public ValueHandler run() throws Exception {
                return Util.createValueHandler();
            }
        });
    } catch (PrivilegedActionException e) {
        throw new InternalError(e.getMessage());
    }

    if (!(vh instanceof javax.rmi.CORBA.ValueHandlerMultiFormat))
        return ORBConstants.STREAM_FORMAT_VERSION_1;
    else
        return ((ValueHandlerMultiFormat)vh).getMaximumStreamFormatVersion();
}
 

/**
 * Returns the maximum stream format version supported by our
 * ValueHandler.
 */
public static byte getMaxStreamFormatVersion() {
    ValueHandler vh;
    try {
        vh = AccessController.doPrivileged(new PrivilegedExceptionAction<ValueHandler>() {
            public ValueHandler run() throws Exception {
                return Util.createValueHandler();
            }
        });
    } catch (PrivilegedActionException e) {
        throw new InternalError(e.getMessage());
    }

    if (!(vh instanceof javax.rmi.CORBA.ValueHandlerMultiFormat))
        return ORBConstants.STREAM_FORMAT_VERSION_1;
    else
        return ((ValueHandlerMultiFormat)vh).getMaximumStreamFormatVersion();
}
 

/**
 * Deregisters a server object from the runtime, allowing the object to become
 * available for garbage collection.
 * @param obj the object to unexport.
 * @exception NoSuchObjectException if the remote object is not
 * currently exported.
 */
public void unexportObject(Remote obj)
    throws NoSuchObjectException {

    if (obj == null) {
        throw new NullPointerException("invalid argument");
    }

    if (StubAdapter.isStub(obj) ||
        obj instanceof java.rmi.server.RemoteStub) {
        throw new NoSuchObjectException(
            "Can only unexport a server object.");
    }

    Tie theTie = Util.getTie(obj);
    if (theTie != null) {
        Util.unexportObject(obj);
    } else {
        if (Utility.loadTie(obj) == null) {
            UnicastRemoteObject.unexportObject(obj,true);
        } else {
            throw new NoSuchObjectException("Object not exported.");
        }
    }
}
 

/**
 * Deregisters a server object from the runtime, allowing the object to become
 * available for garbage collection.
 * @param obj the object to unexport.
 * @exception NoSuchObjectException if the remote object is not
 * currently exported.
 */
public void unexportObject(Remote obj)
    throws NoSuchObjectException {

    if (obj == null) {
        throw new NullPointerException("invalid argument");
    }

    if (StubAdapter.isStub(obj) ||
        obj instanceof java.rmi.server.RemoteStub) {
        throw new NoSuchObjectException(
            "Can only unexport a server object.");
    }

    Tie theTie = Util.getTie(obj);
    if (theTie != null) {
        Util.unexportObject(obj);
    } else {
        if (Utility.loadTie(obj) == null) {
            UnicastRemoteObject.unexportObject(obj,true);
        } else {
            throw new NoSuchObjectException("Object not exported.");
        }
    }
}
 

/**
 * Returns the maximum stream format version supported by our
 * ValueHandler.
 */
public static byte getMaxStreamFormatVersion() {
    ValueHandler vh;
    try {
        vh = AccessController.doPrivileged(new PrivilegedExceptionAction<ValueHandler>() {
            public ValueHandler run() throws Exception {
                return Util.createValueHandler();
            }
        });
    } catch (PrivilegedActionException e) {
        throw new InternalError(e.getMessage());
    }

    if (!(vh instanceof javax.rmi.CORBA.ValueHandlerMultiFormat))
        return ORBConstants.STREAM_FORMAT_VERSION_1;
    else
        return ((ValueHandlerMultiFormat)vh).getMaximumStreamFormatVersion();
}
 

/**
 * Returns the maximum stream format version supported by our
 * ValueHandler.
 */
public static byte getMaxStreamFormatVersion() {
    ValueHandler vh;
    try {
        vh = AccessController.doPrivileged(new PrivilegedExceptionAction<ValueHandler>() {
            public ValueHandler run() throws Exception {
                return Util.createValueHandler();
            }
        });
    } catch (PrivilegedActionException e) {
        throw new InternalError(e.getMessage());
    }

    if (!(vh instanceof javax.rmi.CORBA.ValueHandlerMultiFormat))
        return ORBConstants.STREAM_FORMAT_VERSION_1;
    else
        return ((ValueHandlerMultiFormat)vh).getMaximumStreamFormatVersion();
}
 

public String implementation (String x){
    try{
        // default to using the current ORB version in case the
        // vhandler is not set
        if (vhandler == null) {
            vhandler = ValueHandlerImpl.getInstance(false);
        }

        // Util.getCodebase may return null which would
        // cause a BAD_PARAM exception.
        String result = Util.getCodebase(vhandler.getClassFromType(x));
        if (result == null)
            return "";
        else
            return result;
    } catch(ClassNotFoundException cnfe){
        throw wrapper.missingLocalValueImpl( CompletionStatus.COMPLETED_MAYBE,
            cnfe ) ;
    }
}
 

/**
 * Get the helper for an IDLValue
 *
 * Throws MARSHAL exception if no helper found.
 */
public static BoxedValueHelper getHelper(Class clazz, String codebase,
    String repId)
{
    String className = null;
    if (clazz != null) {
        className = clazz.getName();
        if (codebase == null)
            codebase = Util.getCodebase(clazz);
    } else {
        if (repId != null)
            className = RepositoryId.cache.getId(repId).getClassName();
        if (className == null) // no repId or unrecognized repId
            throw wrapper.unableLocateValueHelper(
                CompletionStatus.COMPLETED_MAYBE);
    }

    try {
        ClassLoader clazzLoader =
            (clazz == null ? null : clazz.getClassLoader());
        Class helperClass =
            loadClassForClass(className+"Helper", codebase, clazzLoader,
            clazz, clazzLoader);
        return (BoxedValueHelper)helperClass.newInstance();

    } catch (ClassNotFoundException cnfe) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            cnfe );
    } catch (IllegalAccessException iae) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            iae );
    } catch (InstantiationException ie) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            ie );
    } catch (ClassCastException cce) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            cce );
    }
}
 

/**
 * Returns a stub for the given server object.
 * @param obj the server object for which a stub is required. Must either be a subclass
 * of PortableRemoteObject or have been previously the target of a call to
 * {@link #exportObject}.
 * @return the most derived stub for the object.
 * @exception NoSuchObjectException if a stub cannot be located for the given server object.
 */
public Remote toStub (Remote obj)
    throws NoSuchObjectException
{
    Remote result = null;
    if (obj == null) {
        throw new NullPointerException("invalid argument");
    }

    // If the class is already an IIOP stub then return it.
    if (StubAdapter.isStub( obj )) {
        return obj;
    }

    // If the class is already a JRMP stub then return it.
    if (obj instanceof java.rmi.server.RemoteStub) {
        return obj;
    }

    // Has it been exported to IIOP?
    Tie theTie = Util.getTie(obj);

    if (theTie != null) {
        result = Utility.loadStub(theTie,null,null,true);
    } else {
        if (Utility.loadTie(obj) == null) {
            result = java.rmi.server.RemoteObject.toStub(obj);
        }
    }

    if (result == null) {
        throw new NoSuchObjectException("object not exported");
    }

    return result;
}
 

private void writeClassBody(Class clz) {
    if (orb == null ||
        ORBVersionFactory.getFOREIGN().equals(orb.getORBVersion()) ||
        ORBVersionFactory.getNEWER().compareTo(orb.getORBVersion()) <= 0) {

        write_value(Util.getCodebase(clz));
        write_value(repIdStrs.createForAnyType(clz));
    } else {

        write_value(repIdStrs.createForAnyType(clz));
        write_value(Util.getCodebase(clz));
    }
}
 

public static Class loadClassForClass (String className,
                                       String remoteCodebase,
                                       ClassLoader loader,
                                       Class relatedType,
                                       ClassLoader relatedTypeClassLoader)
    throws ClassNotFoundException
{
    if (relatedType == null)
        return Util.loadClass(className, remoteCodebase, loader);

    Class loadedClass = null;
    try {
        loadedClass = Util.loadClass(className, remoteCodebase, loader);
    } catch (ClassNotFoundException cnfe) {
        if (relatedType.getClassLoader() == null)
            throw cnfe;
    }

    // If no class was not loaded, or if the loaded class is not of the
    // correct type, make a further attempt to load the correct class
    // using the classloader of the related type.
    // _REVISIT_ Is this step necessary, or should the Util,loadClass
    // algorithm always produce a valid class if the setup is correct?
    // Does the OMG standard algorithm need to be changed to include
    // this step?
    if (loadedClass == null ||
        (loadedClass.getClassLoader() != null &&
         loadedClass.getClassLoader().loadClass(relatedType.getName()) !=
             relatedType))
    {
        if (relatedType.getClassLoader() != relatedTypeClassLoader)
            throw new IllegalArgumentException(
                "relatedTypeClassLoader not class loader of relatedType.");

        if (relatedTypeClassLoader != null)
            loadedClass = relatedTypeClassLoader.loadClass(className);
    }

    return loadedClass;
}
 

private void writeClassBody(Class clz) {
    if (orb == null ||
        ORBVersionFactory.getFOREIGN().equals(orb.getORBVersion()) ||
        ORBVersionFactory.getNEWER().compareTo(orb.getORBVersion()) <= 0) {

        write_value(Util.getCodebase(clz));
        write_value(repIdStrs.createForAnyType(clz));
    } else {

        write_value(repIdStrs.createForAnyType(clz));
        write_value(Util.getCodebase(clz));
    }
}
 

/**
 * Get the helper for an IDLValue
 *
 * Throws MARSHAL exception if no helper found.
 */
public static BoxedValueHelper getHelper(Class clazz, String codebase,
    String repId)
{
    String className = null;
    if (clazz != null) {
        className = clazz.getName();
        if (codebase == null)
            codebase = Util.getCodebase(clazz);
    } else {
        if (repId != null)
            className = RepositoryId.cache.getId(repId).getClassName();
        if (className == null) // no repId or unrecognized repId
            throw wrapper.unableLocateValueHelper(
                CompletionStatus.COMPLETED_MAYBE);
    }

    try {
        ClassLoader clazzLoader =
            (clazz == null ? null : clazz.getClassLoader());
        Class helperClass =
            loadClassForClass(className+"Helper", codebase, clazzLoader,
            clazz, clazzLoader);
        return (BoxedValueHelper)helperClass.newInstance();

    } catch (ClassNotFoundException cnfe) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            cnfe );
    } catch (IllegalAccessException iae) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            iae );
    } catch (InstantiationException ie) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            ie );
    } catch (ClassCastException cce) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            cce );
    }
}
 

private void writeArray(Serializable array, Class clazz) {

        if (valueHandler == null)
            valueHandler = ORBUtility.createValueHandler(); //d11638

        // Write value_tag
        int indirection = writeValueTag(mustChunk, true,
                                        Util.getCodebase(clazz));

        // Write repository ID
        write_repositoryId(repIdStrs.createSequenceRepID(clazz));

        // Add indirection for object to indirection table
        updateIndirectionTable(indirection, array, array);

        // Write Value chunk
        if (mustChunk) {
            start_block();
            end_flag--;
            chunkedValueNestingLevel--;
        } else
            end_flag--;

        if (valueHandler instanceof ValueHandlerMultiFormat) {
            ValueHandlerMultiFormat vh = (ValueHandlerMultiFormat)valueHandler;
            vh.writeValue(parent, array, streamFormatVersion);
        } else
            valueHandler.writeValue(parent, array);

        if (mustChunk)
            end_block();

        // Write end tag
        writeEndTag(mustChunk);
    }
 

public Object copyResult( Object result, ORB orb ) throws RemoteException
{
    if (needsResultCopy)
        return Util.copyObject( result, orb ) ;
    else
        return result ;
}
 

private void writeClassBody(Class clz) {
    if (orb == null ||
        ORBVersionFactory.getFOREIGN().equals(orb.getORBVersion()) ||
        ORBVersionFactory.getNEWER().compareTo(orb.getORBVersion()) <= 0) {

        write_value(Util.getCodebase(clz));
        write_value(repIdStrs.createForAnyType(clz));
    } else {

        write_value(repIdStrs.createForAnyType(clz));
        write_value(Util.getCodebase(clz));
    }
}
 

private void writeValueBase(org.omg.CORBA.portable.ValueBase object,
                            Class clazz) {
    // _REVISIT_ could check to see whether chunking really needed
    mustChunk = true;

    // Write value_tag
    int indirection = writeValueTag(true, true, Util.getCodebase(clazz));

    // Get rep id
    String repId = ((ValueBase)object)._truncatable_ids()[0];

    // Write rep id
    write_repositoryId(repId);

    // Add indirection for object to indirection table
    updateIndirectionTable(indirection, object, object);

    // Write Value chunk
    start_block();
    end_flag--;
    chunkedValueNestingLevel--;
    writeIDLValue(object, repId);
    end_block();

    // Write end tag
    writeEndTag(true);
}
 

/** This is the implementation of the public API used to connect
 *  a servant-skeleton to the ORB.
 */
public synchronized void connect(org.omg.CORBA.Object servant)
{
    checkShutdownState();
    if (getTOAFactory() == null)
        throw wrapper.noToa() ;

    try {
        String codebase = javax.rmi.CORBA.Util.getCodebase( servant.getClass() ) ;
        getTOAFactory().getTOA( codebase ).connect( servant ) ;
    } catch ( Exception ex ) {
        throw wrapper.orbConnectError( ex ) ;
    }
}
 

/**
 * Get the helper for an IDLValue
 *
 * Throws MARSHAL exception if no helper found.
 */
public static BoxedValueHelper getHelper(Class clazz, String codebase,
    String repId)
{
    String className = null;
    if (clazz != null) {
        className = clazz.getName();
        if (codebase == null)
            codebase = Util.getCodebase(clazz);
    } else {
        if (repId != null)
            className = RepositoryId.cache.getId(repId).getClassName();
        if (className == null) // no repId or unrecognized repId
            throw wrapper.unableLocateValueHelper(
                CompletionStatus.COMPLETED_MAYBE);
    }

    try {
        ClassLoader clazzLoader =
            (clazz == null ? null : clazz.getClassLoader());
        Class helperClass =
            loadClassForClass(className+"Helper", codebase, clazzLoader,
            clazz, clazzLoader);
        return (BoxedValueHelper)helperClass.newInstance();

    } catch (ClassNotFoundException cnfe) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            cnfe );
    } catch (IllegalAccessException iae) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            iae );
    } catch (InstantiationException ie) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            ie );
    } catch (ClassCastException cce) {
        throw wrapper.unableLocateValueHelper( CompletionStatus.COMPLETED_MAYBE,
            cce );
    }
}
 

/**
 * Override the actions of the final method "writeObject()"
 * in ObjectOutputStream.
 * @since     JDK1.1.6
 */
public final void writeObjectOverride(Object obj)
    throws IOException
{
    writeObjectState.writeData(this);

    Util.writeAbstractObject((OutputStream)orbStream, obj);
}
 

/**
 * Override the actions of the final method "writeObject()"
 * in ObjectOutputStream.
 * @since     JDK1.1.6
 */
public final void writeObjectOverride(Object obj)
    throws IOException
{
    writeObjectState.writeData(this);

    Util.writeAbstractObject((OutputStream)orbStream, obj);
}
 

/**
 * Return default ValueHandler
 */
public static ValueHandler createValueHandler() {
    ValueHandler vh;
    try {
        vh = AccessController.doPrivileged(new PrivilegedExceptionAction<ValueHandler>() {
            public ValueHandler run() throws Exception {
    return Util.createValueHandler();
}
        });
    } catch (PrivilegedActionException e) {
        throw new InternalError(e.getMessage());
    }
    return vh;
}
 

public PresentationManager.StubFactory createStubFactory(
    String className, boolean isIDLStub, String remoteCodeBase,
    Class expectedClass, ClassLoader classLoader)
{
    Class cls = null ;

    try {
        cls = Util.loadClass( className, remoteCodeBase, classLoader ) ;
    } catch (ClassNotFoundException exc) {
        throw wrapper.classNotFound3(
            CompletionStatus.COMPLETED_MAYBE, exc, className ) ;
    }

    PresentationManager pm = ORB.getPresentationManager() ;

    if (IDLEntity.class.isAssignableFrom( cls ) &&
        !Remote.class.isAssignableFrom( cls )) {
        // IDL stubs must always use static factories.
        PresentationManager.StubFactoryFactory sff =
            pm.getStubFactoryFactory( false ) ;
        PresentationManager.StubFactory sf =
            sff.createStubFactory( className, true, remoteCodeBase,
                expectedClass, classLoader ) ;
        return sf ;
    } else {
        PresentationManager.ClassData classData = pm.getClassData( cls ) ;
        return makeDynamicStubFactory( pm, classData, classLoader ) ;
    }
}
 

public final Class getClassFromType()
    throws ClassNotFoundException {
    if (clazz != null)
        return clazz;

    Class specialCase = (Class)kSpecialCasesClasses.get(getClassName());

    if (specialCase != null){
        clazz = specialCase;
        return specialCase;
    }
    else
        {
            try{
                return Util.loadClass(getClassName(), null, null);
            }
            catch(ClassNotFoundException cnfe){
                if (defaultServerURL != null) {
                    try{
                        return getClassFromType(defaultServerURL);
                    }
                    catch(MalformedURLException mue){
                        throw cnfe;
                    }
                }
                else throw cnfe;
            }
        }

}
 

private void writeArray(Serializable array, Class clazz) {

        if (valueHandler == null)
            valueHandler = ORBUtility.createValueHandler(); //d11638

        // Write value_tag
        int indirection = writeValueTag(mustChunk, true,
                                        Util.getCodebase(clazz));

        // Write repository ID
        write_repositoryId(repIdStrs.createSequenceRepID(clazz));

        // Add indirection for object to indirection table
        updateIndirectionTable(indirection, array, array);

        // Write Value chunk
        if (mustChunk) {
            start_block();
            end_flag--;
            chunkedValueNestingLevel--;
        } else
            end_flag--;

        if (valueHandler instanceof ValueHandlerMultiFormat) {
            ValueHandlerMultiFormat vh = (ValueHandlerMultiFormat)valueHandler;
            vh.writeValue(parent, array, streamFormatVersion);
        } else
            valueHandler.writeValue(parent, array);

        if (mustChunk)
            end_block();

        // Write end tag
        writeEndTag(mustChunk);
    }
 

private void writeValueBase(org.omg.CORBA.portable.ValueBase object,
                            Class clazz) {
    // _REVISIT_ could check to see whether chunking really needed
    mustChunk = true;

    // Write value_tag
    int indirection = writeValueTag(true, true, Util.getCodebase(clazz));

    // Get rep id
    String repId = ((ValueBase)object)._truncatable_ids()[0];

    // Write rep id
    write_repositoryId(repId);

    // Add indirection for object to indirection table
    updateIndirectionTable(indirection, object, object);

    // Write Value chunk
    start_block();
    end_flag--;
    chunkedValueNestingLevel--;
    writeIDLValue(object, repId);
    end_block();

    // Write end tag
    writeEndTag(true);
}
 

private void writeValueBase(org.omg.CORBA.portable.ValueBase object,
                            Class clazz) {
    // _REVISIT_ could check to see whether chunking really needed
    mustChunk = true;

    // Write value_tag
    int indirection = writeValueTag(true, true, Util.getCodebase(clazz));

    // Get rep id
    String repId = ((ValueBase)object)._truncatable_ids()[0];

    // Write rep id
    write_repositoryId(repId);

    // Add indirection for object to indirection table
    updateIndirectionTable(indirection, object, object);

    // Write Value chunk
    start_block();
    end_flag--;
    chunkedValueNestingLevel--;
    writeIDLValue(object, repId);
    end_block();

    // Write end tag
    writeEndTag(true);
}
 

private void writeArray(Serializable array, Class clazz) {

        if (valueHandler == null)
            valueHandler = ORBUtility.createValueHandler(); //d11638

        // Write value_tag
        int indirection = writeValueTag(mustChunk, true,
                                        Util.getCodebase(clazz));

        // Write repository ID
        write_repositoryId(repIdStrs.createSequenceRepID(clazz));

        // Add indirection for object to indirection table
        updateIndirectionTable(indirection, array, array);

        // Write Value chunk
        if (mustChunk) {
            start_block();
            end_flag--;
            chunkedValueNestingLevel--;
        } else
            end_flag--;

        if (valueHandler instanceof ValueHandlerMultiFormat) {
            ValueHandlerMultiFormat vh = (ValueHandlerMultiFormat)valueHandler;
            vh.writeValue(parent, array, streamFormatVersion);
        } else
            valueHandler.writeValue(parent, array);

        if (mustChunk)
            end_block();

        // Write end tag
        writeEndTag(mustChunk);
    }
 

public Object[] copyArguments( Object[] args,
    ORB orb ) throws RemoteException
{
    if (needsArgumentCopy)
        return Util.copyObjects( args, orb ) ;
    else
        return args ;
}
 

/**
 * Returns a stub for the given server object.
 * @param obj the server object for which a stub is required. Must either be a subclass
 * of PortableRemoteObject or have been previously the target of a call to
 * {@link #exportObject}.
 * @return the most derived stub for the object.
 * @exception NoSuchObjectException if a stub cannot be located for the given server object.
 */
public Remote toStub (Remote obj)
    throws NoSuchObjectException
{
    Remote result = null;
    if (obj == null) {
        throw new NullPointerException("invalid argument");
    }

    // If the class is already an IIOP stub then return it.
    if (StubAdapter.isStub( obj )) {
        return obj;
    }

    // If the class is already a JRMP stub then return it.
    if (obj instanceof java.rmi.server.RemoteStub) {
        return obj;
    }

    // Has it been exported to IIOP?
    Tie theTie = Util.getTie(obj);

    if (theTie != null) {
        result = Utility.loadStub(theTie,null,null,true);
    } else {
        if (Utility.loadTie(obj) == null) {
            result = java.rmi.server.RemoteObject.toStub(obj);
        }
    }

    if (result == null) {
        throw new NoSuchObjectException("object not exported");
    }

    return result;
}