/*
* @(#)ORBVersionFactory.java 1.14 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.orb ;
import com.sun.corba.se.spi.orb.ORBVersion ;
import com.sun.corba.se.impl.orb.ORBVersionImpl ;
import org.omg.CORBA.portable.InputStream ;
import org.omg.CORBA.INTERNAL ;
public class ORBVersionFactory {
private ORBVersionFactory() {} ;
public static ORBVersion getFOREIGN()
{
return ORBVersionImpl.FOREIGN ;
}
public static ORBVersion getOLD()
{
return ORBVersionImpl.OLD ;
}
public static ORBVersion getNEW()
{
return ORBVersionImpl.NEW ;
}
public static ORBVersion getJDK1_3_1_01()
{
return ORBVersionImpl.JDK1_3_1_01 ;
}
public static ORBVersion getNEWER()
{
return ORBVersionImpl.NEWER ;
}
public static ORBVersion getPEORB()
{
return ORBVersionImpl.PEORB ;
}
/** Return the current version of this ORB
*/
public static ORBVersion getORBVersion()
{
return ORBVersionImpl.PEORB ;
}
public static ORBVersion create( InputStream is )
{
byte value = is.read_octet() ;
return byteToVersion( value ) ;
}
private static ORBVersion byteToVersion( byte value )
{
/* Throwing an exception here would cause this version to be
* incompatible with future versions of the ORB, to the point
* that this version could
* not even unmarshal objrefs from a newer version that uses
* extended versioning. Therefore, we will simply treat all
* unknown versions as the latest version.
if (value < 0)
throw new INTERNAL() ;
*/
/**
* Update: If we treat all unknown versions as the latest version
* then when we send an IOR with a PEORB version to an ORB that
* doesn't know the PEORB version it will treat it as whatever
* its idea of the latest version is. Then, if that IOR is
* sent back to the server and compared with the original
* the equality check will fail because the versions will be
* different.
*
* Instead, just capture the version bytes.
*/
switch (value) {
case ORBVersion.FOREIGN : return ORBVersionImpl.FOREIGN ;
case ORBVersion.OLD : return ORBVersionImpl.OLD ;
case ORBVersion.NEW : return ORBVersionImpl.NEW ;
case ORBVersion.JDK1_3_1_01: return ORBVersionImpl.JDK1_3_1_01 ;
case ORBVersion.NEWER : return ORBVersionImpl.NEWER ;
case ORBVersion.PEORB : return ORBVersionImpl.PEORB ;
default : return new ORBVersionImpl(value);
}
}
}