/*
 * @(#)ResolverDefault.java	1.7 03/12/19
 * 
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

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

import java.io.File ;

import com.sun.corba.se.impl.resolver.LocalResolverImpl ;
import com.sun.corba.se.impl.resolver.ORBInitRefResolverImpl ;
import com.sun.corba.se.impl.resolver.ORBDefaultInitRefResolverImpl ;
import com.sun.corba.se.impl.resolver.BootstrapResolverImpl ;
import com.sun.corba.se.impl.resolver.CompositeResolverImpl ;
import com.sun.corba.se.impl.resolver.INSURLOperationImpl ;
import com.sun.corba.se.impl.resolver.SplitLocalResolverImpl ;
import com.sun.corba.se.impl.resolver.FileResolverImpl ;

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

/** Utility class that provides factory methods for all of the 
 * standard resolvers that we provide.
 */
public class ResolverDefault {
    /** Return a local resolver that simply stores bindings in a map.
    */
    public static LocalResolver makeLocalResolver( ) 
    {
	return new LocalResolverImpl() ;
    }

    /** Return a resolver that relies on configured values of ORBInitRef for data.
    */
    public static Resolver makeORBInitRefResolver( Operation urlOperation,
	StringPair[] initRefs ) 
    {
	return new ORBInitRefResolverImpl( urlOperation, initRefs ) ;
    }

    public static Resolver makeORBDefaultInitRefResolver( Operation urlOperation,
	String defaultInitRef ) 
    {
	return new ORBDefaultInitRefResolverImpl( urlOperation,
	    defaultInitRef ) ;
    }

    /** Return a resolver that uses the proprietary bootstrap protocol 
    * to implement a resolver.  Obtains the necessary host and port 
    * information from the ORB.
    */
    public static Resolver makeBootstrapResolver( ORB orb, String host, int port ) 
    {
	return new BootstrapResolverImpl( orb, host, port ) ;
    }

    /** Return a resolver composed of the two given resolvers.  result.list() is the 
    * union of first.list() and second.list().  result.resolve( name ) returns
    * first.resolve( name ) if that is not null, otherwise returns the result of
    * second.resolve( name ).
    */
    public static Resolver makeCompositeResolver( Resolver first, Resolver second ) 
    {
	return new CompositeResolverImpl( first, second ) ;
    }

    public static Operation makeINSURLOperation( ORB orb, Resolver bootstrapResolver )
    {
	return new INSURLOperationImpl( 
	    (com.sun.corba.se.spi.orb.ORB)orb, bootstrapResolver ) ;
    }

    public static LocalResolver makeSplitLocalResolver( Resolver resolver,
	LocalResolver localResolver ) 
    {
	return new SplitLocalResolverImpl( resolver, localResolver ) ;
    }

    public static Resolver makeFileResolver( ORB orb, File file ) 
    {
	return new FileResolverImpl( orb, file ) ;
    }
}