Java Util类代码示例

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * 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.");
        }
    }
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
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 ) ;
    }
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * 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.getCause());
    }

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

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * 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();
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * Creates the correct ValueHandler for the given ORB,
 * querying ORBVersion information.  If the ORB or
 * ORBVersion is null, gets the ValueHandler from
 * Util.createValueHandler.
 */
public static ValueHandler createValueHandler(ORB orb) {

    if (orb == null)
        return Util.createValueHandler();

    ORBVersion version = orb.getORBVersion();

    if (version == null)
        return Util.createValueHandler();

    if (version.equals(ORBVersionFactory.getOLD()))
        return new ValueHandlerImpl_1_3();
    if (version.equals(ORBVersionFactory.getNEW()))
        return new ValueHandlerImpl_1_3_1();

    return Util.createValueHandler();
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
public String implementation (String x){
    try{
        // default to using the current ORB version in case the
        // vhandler is not set
        if (vhandler == null) {
            vhandler = new ValueHandlerImpl(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 ) ;
    }
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * includes the found extension to the corresponding fragment
 * 
 * @param gEdge
 * @param emb
 * @param code
 * @param edge
 * @param nodeB
 */
protected void add(final GSpanEdge<NodeType, EdgeType> gEdge,
		final DFSCode<NodeType, EdgeType> code,int type) {
	// search corresponding extension
	GSpanExtension<NodeType, EdgeType> ext = children.get(gEdge);
	//~

	if (ext == null) {
		// create new extension
		 HPMutableGraph<NodeType, EdgeType> ng = (HPMutableGraph<NodeType, EdgeType>) code.getHPlistGraph().clone();
		// TODO: avoid clone??
		gEdge.addTo(ng);  //reformulate the form of the new extended fragment!!
		ext = new GSpanExtension<NodeType, EdgeType>();
		ext.edge=gEdge;
		ext.frag=new DFSCode<NodeType, EdgeType>(code.getSortedFreqLabels(), code.getSingleGraph(),utilities.Util.clone(code.getNonCandidates())).set((HPListGraph<NodeType, EdgeType>)ng,code.getFirst() , code.getLast(),code.getParents());
		ext.frag = (DFSCode<NodeType, EdgeType>) code.extend(ext); //PUT THE STRING HERE
		children.put(gEdge, ext);   //TODO push into Children !!!
	} else {
		gEdge.release();
	}
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * includes the found extension to the corresponding fragment
 * 
 * @param gEdge
 * @param emb
 * @param code
 * @param edge
 * @param nodeB
 */
protected void add(final GSpanEdge<NodeType, EdgeType> gEdge,
		final DFSCode<NodeType, EdgeType> code,int type) {
	// search corresponding extension
	GSpanExtension<NodeType, EdgeType> ext = children.get(gEdge);
	//~

	if (ext == null) {
		// create new extension
		 HPMutableGraph<NodeType, EdgeType> ng = (HPMutableGraph<NodeType, EdgeType>) code.getHPlistGraph().clone();
		// TODO: avoid clone??
		gEdge.addTo(ng);  //reformulate the form of the new extended fragment!!
		
		ext = new GSpanExtension<NodeType, EdgeType>();
		ext.edge=gEdge;
		ext.frag=new DFSCode<NodeType, EdgeType>(code.getSortedFreqLabels(), code.getSingleGraph(),utilities.Util.clone(code.getNonCandidates())).set((HPListGraph<NodeType, EdgeType>)ng,code.getFirst() , code.getLast(),code.getParents());
		
		ext.frag = (DFSCode<NodeType, EdgeType>) code.extend(ext); //PUT THE STRING HERE
		
		children.put(gEdge, ext);   //TODO push into Children !!!
	} else {
		gEdge.release();
	}
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * includes the found extension to the corresponding fragment
 * 
 * @param gEdge
 * @param emb
 * @param code
 * @param edge
 * @param nodeB
 */
protected void add(final GSpanEdge<NodeType, EdgeType> gEdge,
		final DFSCode<NodeType, EdgeType> code,int type) {
	// search corresponding extension
	GSpanExtension<NodeType, EdgeType> ext = children.get(gEdge);
	//~

	if (ext == null) {
		// create new extension
		 HPMutableGraph<NodeType, EdgeType> ng = (HPMutableGraph<NodeType, EdgeType>) code.getHPlistGraph().clone();
		// TODO: avoid clone??
		gEdge.addTo(ng);  //reformulate the form of the new extended fragment!!
		ext = new GSpanExtension<NodeType, EdgeType>();
		ext.edge=gEdge;
		ext.frag=new DFSCode<NodeType, EdgeType>(code.getSortedFreqLabels(), code.getSingleGraph(),utilities.Util.clone(code.getNonCandidates())).set((HPListGraph<NodeType, EdgeType>)ng,code.getFirst() , code.getLast(),code.getParents());
		ext.frag = (DFSCode<NodeType, EdgeType>) code.extend(ext); //PUT THE STRING HERE

		children.put(gEdge, ext);   //TODO push into Children !!!
	} else {
		gEdge.release();
	}
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
public void start(String[] args) throws Exception {
    Properties p = System.getProperties();
    p.put("org.omg.CORBA.ORBClass", "com.sun.corba.se.internal.POA.POAORB");
    p.put("org.omg.CORBA.ORBSingletonClass", "com.sun.corba.se.internal.corba.ORBSingleton");
    
    ORB orb = ORB.init(args, p);
    
    POA rootPOA = (POA) orb.resolve_initial_references("RootPOA");
    
    Policy[] tpolicy = new Policy[3];
    tpolicy[0] = rootPOA.create_lifespan_policy(LifespanPolicyValue.TRANSIENT);
    tpolicy[1] = rootPOA.create_request_processing_policy(RequestProcessingPolicyValue.USE_ACTIVE_OBJECT_MAP_ONLY);
    tpolicy[2] = rootPOA.create_servant_retention_policy(ServantRetentionPolicyValue.RETAIN);
    POA tPOA = rootPOA.create_POA("MyTransientPOA", null, tpolicy);
    
    tPOA.the_POAManager().activate();
    Tie tie = (Tie) Util.getTie(remoteDatabaseManager);
    byte[] id = "db".getBytes();
    tPOA.activate_object_with_id(id, (Servant) tie);
        
    Context initialNamingContext = new InitialContext();
    initialNamingContext.rebind("DatabaseService", tPOA.create_reference_with_id(id, ((Servant) tie)._all_interfaces(tPOA, id)[0]));
    System.out.println("Database Server: Ready...");
    
    orb.run();
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
/**
 * 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;
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
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 ) ;
    }
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
public Object[] copyArguments( Object[] args,
    ORB orb ) throws RemoteException
{
    if (needsArgumentCopy)
        return Util.copyObjects( args, orb ) ;
    else
        return args ;
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
public Object copyResult( Object result, ORB orb ) throws RemoteException
{
    if (needsResultCopy)
        return Util.copyObject( result, orb ) ;
    else
        return result ;
}
 

import javax.rmi.CORBA.Util; //导入依赖的package包/类
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);
    }