001    package org.apache.myfaces.tobago.util;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one or more
005     * contributor license agreements.  See the NOTICE file distributed with
006     * this work for additional information regarding copyright ownership.
007     * The ASF licenses this file to You under the Apache License, Version 2.0
008     * (the "License"); you may not use this file except in compliance with
009     * the License.  You may obtain a copy of the License at
010     *
011     *      http://www.apache.org/licenses/LICENSE-2.0
012     *
013     * Unless required by applicable law or agreed to in writing, software
014     * distributed under the License is distributed on an "AS IS" BASIS,
015     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016     * See the License for the specific language governing permissions and
017     * limitations under the License.
018     */
019    
020    import org.apache.commons.logging.Log;
021    import org.apache.commons.logging.LogFactory;
022    
023    import javax.naming.Context;
024    import javax.naming.NamingException;
025    import javax.naming.Binding;
026    import javax.naming.NamingEnumeration;
027    
028    public class JndiUtils {
029    
030      private static final Log LOG = LogFactory.getLog(JndiUtils.class);
031    
032      public static Object getJndiProperty(Context ctx, String property) throws NamingException {
033        return getJndiProperty(ctx, property, null);
034      }
035      
036      public static Object getJndiProperty(Context ctx, String property, Object defaultValue) throws NamingException {
037        NamingEnumeration<Binding> ne = ctx.listBindings("java:comp/env");
038        while (ne.hasMore()) {
039          Binding b = ne.next();
040          if (LOG.isDebugEnabled()) {
041            LOG.debug("Property: " + b.getName());
042          }
043          if (property.equals(b.getName())) {
044            Object obj = b.getObject();
045            if (LOG.isDebugEnabled()) {
046              LOG.debug("Value: "+ obj);
047            }
048            return obj;
049          }
050        }
051        return defaultValue;
052      }
053    }