/*
* Copyright 2009 Red Hat, Inc.
* Red Hat licenses this file to you under the Apache License, version
* 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package org.hornetq.utils;
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>
*
*/
public class JNDIUtil
{
// Constants -----------------------------------------------------
// Static --------------------------------------------------------
/**
* Create a context path recursively.
*/
public static Context createContext(final Context c, final 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;
}
public static void tearDownRecursively(final Context c) throws Exception
{
for (NamingEnumeration<Binding> ne = c.listBindings(""); ne.hasMore();)
{
Binding b = ne.next();
String name = b.getName();
Object object = b.getObject();
if (object instanceof Context)
{
JNDIUtil.tearDownRecursively((Context)object);
}
c.unbind(name);
}
}
/**
* 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(final Context c, final String jndiName, final Object o) throws NamingException
{
Context context = c;
String name = jndiName;
int idx = jndiName.lastIndexOf('/');
if (idx != -1)
{
context = JNDIUtil.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);
}
}
// Attributes ----------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}