JNDIUtil.java Source code

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Here is the source code for JNDIUtil.java

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/*
  * JBoss, Home of Professional Open Source
  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * This is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
  * published by the Free Software Foundation; either version 2.1 of
  * the License, or (at your option) any later version.
  *
  * This software is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this software; if not, write to the Free
  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
  */

import java.util.StringTokenizer;

import javax.naming.Binding;
import javax.naming.Context;
import javax.naming.NameNotFoundException;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;

/**
 * @author <a href="mailto:ovidiu@feodorov.com">Ovidiu Feodorov</a>
 * @version <tt>$Revision: 2868 $</tt>
 *
 * $Id: JNDIUtil.java 2868 2007-07-10 20:22:16Z timfox $
 */
public class JNDIUtil {
    /**
     * Context.rebind() requires that all intermediate contexts and the target context (that named by
     * all but terminal atomic component of the name) must already exist, otherwise
     * NameNotFoundException is thrown. This method behaves similar to Context.rebind(), but creates
     * intermediate contexts, if necessary.
     */
    public static void rebind(Context c, String jndiName, Object o) throws NamingException {
        Context context = c;
        String name = jndiName;

        int idx = jndiName.lastIndexOf('/');
        if (idx != -1) {
            context = createContext(c, jndiName.substring(0, idx));
            name = jndiName.substring(idx + 1);
        }
        boolean failed = false;
        try {
            context.rebind(name, o);
        } catch (Exception ignored) {
            failed = true;
        }
        if (failed) {
            context.bind(name, o);
        }
    }

    /**
     * Create a context path recursively.
     */
    public static Context createContext(Context c, String path) throws NamingException {
        Context crtContext = c;
        for (StringTokenizer st = new StringTokenizer(path, "/"); st.hasMoreTokens();) {
            String tok = st.nextToken();

            try {
                Object o = crtContext.lookup(tok);
                if (!(o instanceof Context)) {
                    throw new NamingException("Path " + path + " overwrites and already bound object");
                }
                crtContext = (Context) o;
                continue;
            } catch (NameNotFoundException e) {
                // OK
            }
            crtContext = crtContext.createSubcontext(tok);
        }
        return crtContext;
    }

}