001    /*
002    Copyright (c) 1996-2012, Damon Hart-Davis
003    All rights reserved.
004    
005    Redistribution and use in source and binary forms, with or without
006    modification, are permitted provided that the following conditions are
007    met:
008    
009      * Redistributions of source code must retain the above copyright
010        notice, this list of conditions and the following disclaimer.
011    
012      * Redistributions in binary form must reproduce the above copyright
013        notice, this list of conditions and the following disclaimer in the
014        documentation and/or other materials provided with the
015        distribution.
016    
017    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
018    IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
019    TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
020    PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
021    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
022    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
023    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
024    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
025    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
026    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
027    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
028    */
029    package org.hd.d.pg2k.svrCore;
030    
031    import javax.naming.InitialContext;
032    
033    /**This holds some JNDI utilities.
034     */
035    public final class JNDIUtils
036        {
037        /**Looks up an ejb name with an without a java:comp/env/ prefix.
038         * This hides differences in behaviour between (for example),
039         * Sun's 1.3 beta RI which uses names with the prefix throughout,
040         * and JBoss 2.2.1 WAR and command-line client access which does
041         * not, whereas inter-bean access does!
042         * <p>
043         * This returns a (non-null) object reference suitable for narrowing
044         * given a short name such as ejb/MyBean.
045         */
046        public static Object getObjref(final String shortName)
047            throws javax.naming.NamingException
048            {
049            final InitialContext ctx = new InitialContext();
050            Object objref = null;
051            try { objref = ctx.lookup(shortName); }
052            catch(final javax.naming.NameNotFoundException e)
053                { objref = ctx.lookup(CoreConsts.JNDI_COMPENV_PREFIX + shortName); }
054            return(objref);
055            }
056    
057        }