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The core O/RM functionality as provided by Hibernate
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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program 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 distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.internal.util.jndi;

import java.util.Hashtable;
import java.util.Map;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.naming.NameNotFoundException;
import javax.naming.NamingException;

import org.hibernate.engine.jndi.internal.JndiServiceImpl;

/**
 * Helper for dealing with JNDI.
 *
 * @deprecated As JNDI access should get routed through {@link org.hibernate.engine.jndi.spi.JndiService}
 */
@Deprecated
public final class JndiHelper {
	private JndiHelper() {
	}

	/**
	 * Given a hodgepodge of properties, extract out the ones relevant for JNDI interaction.
	 *
	 * @param configurationValues The map of config values
	 *
	 * @return The extracted JNDI specific properties.
	 */
	@SuppressWarnings({ "unchecked" })
	public static Properties extractJndiProperties(Map configurationValues) {
		return JndiServiceImpl.extractJndiProperties( configurationValues );
	}

	public static InitialContext getInitialContext(Properties props) throws NamingException {
		final Hashtable hash = extractJndiProperties( props );
		return hash.size() == 0 ? new InitialContext() : new InitialContext( hash );
	}

	/**
	 * Bind val to name in ctx, and make sure that all intermediate contexts exist.
	 *
	 * @param ctx the root context
	 * @param name the name as a string
	 * @param val the object to be bound
	 *
	 * @throws NamingException Indicates a problem performing the bind.
	 */
	public static void bind(Context ctx, String name, Object val) throws NamingException {
		try {
			ctx.rebind(name, val);
		}
		catch (Exception e) {
			Name n = ctx.getNameParser( "" ).parse( name );
			while ( n.size() > 1 ) {
				final String ctxName = n.get( 0 );

				Context subctx = null;
				try {
					subctx = (Context) ctx.lookup( ctxName );
				}
				catch (NameNotFoundException ignore) {
				}

				if ( subctx != null ) {
					ctx = subctx;
				}
				else {
					ctx = ctx.createSubcontext( ctxName );
				}
				n = n.getSuffix( 1 );
			}
			ctx.rebind( n, val );
		}
	}
}