iorfactories.java

java1.6众多例子参考

/*
 * @(#)IORFactories.java	1.16 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.sun.corba.se.spi.ior ;

import java.io.Serializable ;

import org.omg.CORBA_2_3.portable.InputStream ;

import org.omg.CORBA.BAD_PARAM ;
import org.omg.CORBA.portable.ValueFactory ;

import org.omg.PortableInterceptor.ObjectReferenceTemplate ;
import org.omg.PortableInterceptor.ObjectReferenceFactory ;

import com.sun.corba.se.impl.ior.ObjectIdImpl ;
import com.sun.corba.se.impl.ior.ObjectKeyImpl ;
import com.sun.corba.se.impl.ior.IORImpl ;
import com.sun.corba.se.impl.ior.IORTemplateImpl ;
import com.sun.corba.se.impl.ior.IORTemplateListImpl ;
import com.sun.corba.se.impl.ior.ObjectReferenceProducerBase ;
import com.sun.corba.se.impl.ior.ObjectReferenceFactoryImpl ;
import com.sun.corba.se.impl.ior.ObjectReferenceTemplateImpl ;
import com.sun.corba.se.impl.ior.ObjectKeyFactoryImpl ;

import com.sun.corba.se.impl.orbutil.ORBUtility ;

import com.sun.corba.se.spi.orb.ORB ;

/** This class provides a number of factory methods for creating
 * various IOR SPI classes which are not subclassed for specific protocols.
 * The following types must be created using this class:
 * <ul>
 * <li>ObjectId</li>
 * <li>ObjectKey</li>
 * <li>IOR</li>
 * <li>IORTemplate</li>
 * </ul>
 */
public class IORFactories {
    private IORFactories() {} 

    /** Create an ObjectId for the given byte sequence.
     */
    public static ObjectId makeObjectId( byte[] id )
    {
	return new ObjectIdImpl( id ) ;
    }

    /** Create an ObjectKey for the given ObjectKeyTemplate and
     * ObjectId.
     */
    public static ObjectKey makeObjectKey( ObjectKeyTemplate oktemp, ObjectId oid )
    {
	return new ObjectKeyImpl( oktemp, oid ) ;
    }

    /** Create an empty IOR for the given orb and typeid.  The result is mutable.
     */
    public static IOR makeIOR( ORB orb, String typeid ) 
    {
	return new IORImpl( orb, typeid ) ;
    }

    /** Create an empty IOR for the given orb with a null typeid.  The result is mutable.
     */
    public static IOR makeIOR( ORB orb ) 
    {
	return new IORImpl( orb ) ;
    }

    /** Read an IOR from an InputStream.  ObjectKeys are not shared.
     */
    public static IOR makeIOR( InputStream is )
    {
	return new IORImpl( is ) ;
    }

    /** Create an IORTemplate with the given ObjectKeyTemplate.  The result
     * is mutable.
     */
    public static IORTemplate makeIORTemplate( ObjectKeyTemplate oktemp )
    {
	return new IORTemplateImpl( oktemp ) ;
    }

    /** Read an IORTemplate from an InputStream.
     */
    public static IORTemplate makeIORTemplate( InputStream is )
    {
	return new IORTemplateImpl( is ) ;
    }

    public static IORTemplateList makeIORTemplateList() 
    {
	return new IORTemplateListImpl() ;
    }

    public static IORTemplateList makeIORTemplateList( InputStream is ) 
    {
	return new IORTemplateListImpl( is ) ;
    }

    public static IORFactory getIORFactory( ObjectReferenceTemplate ort ) 
    {
	if (ort instanceof ObjectReferenceTemplateImpl) {
	    ObjectReferenceTemplateImpl orti = 
		(ObjectReferenceTemplateImpl)ort ;
	    return orti.getIORFactory() ;
	}

	throw new BAD_PARAM() ;
    }

    public static IORTemplateList getIORTemplateList( ObjectReferenceFactory orf ) 
    {
	if (orf instanceof ObjectReferenceProducerBase) {
	    ObjectReferenceProducerBase base =
		(ObjectReferenceProducerBase)orf ;
	    return base.getIORTemplateList() ;
	}

	throw new BAD_PARAM() ;
    }

    public static ObjectReferenceTemplate makeObjectReferenceTemplate( ORB orb, 
	IORTemplate iortemp ) 
    {
	return new ObjectReferenceTemplateImpl( orb, iortemp ) ;
    }

    public static ObjectReferenceFactory makeObjectReferenceFactory( ORB orb, 
	IORTemplateList iortemps )
    {
	return new ObjectReferenceFactoryImpl( orb, iortemps ) ;
    }

    public static ObjectKeyFactory makeObjectKeyFactory( ORB orb ) 
    {
	return new ObjectKeyFactoryImpl( orb ) ;
    }

    public static IOR getIOR( org.omg.CORBA.Object obj ) 
    {
	return ORBUtility.getIOR( obj ) ;
    }

    public static org.omg.CORBA.Object makeObjectReference( IOR ior ) 
    {
	return ORBUtility.makeObjectReference( ior ) ;
    }

    /** This method must be called in order to register the value
     * factories for the ObjectReferenceTemplate and ObjectReferenceFactory
     * value types.
     */
    public static void registerValueFactories( ORB orb ) 
    {
	// Create and register the factory for the Object Reference Template
	// implementation.
	ValueFactory vf = new ValueFactory() {
	    public Serializable read_value( InputStream is ) 
	    {
		return new ObjectReferenceTemplateImpl( is ) ;
	    }
	} ;

	orb.register_value_factory( ObjectReferenceTemplateImpl.repositoryId, vf ) ;

	// Create and register the factory for the Object Reference Factory
	// implementation.
	vf = new ValueFactory() {
	    public Serializable read_value( InputStream is ) 
	    {
		return new ObjectReferenceFactoryImpl( is ) ;
	    }
	} ;

	orb.register_value_factory( ObjectReferenceFactoryImpl.repositoryId, vf ) ;
    }
}