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/*
 * Fabric3
 * Copyright (c) 2009-2013 Metaform Systems
 *
 * Fabric3 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version, with the
 * following exception:
 *
 * Linking this software statically or dynamically with other
 * modules is making a combined work based on this software.
 * Thus, the terms and conditions of the GNU General Public
 * License cover the whole combination.
 *
 * As a special exception, the copyright holders of this software
 * give you permission to link this software with independent
 * modules to produce an executable, regardless of the license
 * terms of these independent modules, and to copy and distribute
 * the resulting executable under terms of your choice, provided
 * that you also meet, for each linked independent module, the
 * terms and conditions of the license of that module. An
 * independent module is a module which is not derived from or
 * based on this software. If you modify this software, you may
 * extend this exception to your version of the software, but
 * you are not obligated to do so. If you do not wish to do so,
 * delete this exception statement from your version.
 *
 * Fabric3 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 General Public License for more details.
 *
 * You should have received a copy of the
 * GNU General Public License along with Fabric3.
 * If not, see .
*/
package org.fabric3.runtime.weblogic.federation;

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

/**
 * Helper class for JNDI operations.
 */
public final class JndiHelper {

    private JndiHelper() {
    }

    /**
     * Returns the named subcontext, creating it if it does not exist.
     *
     * @param name   the subcontext name
     * @param parent the parent context
     * @return the subcontext
     * @throws NamingException if there is an error resolving or creating the subcontext
     */
    public static Context getContext(String name, Context parent) throws NamingException {
        Context context;
        try {
            context = (Context) parent.lookup(name);
        } catch (NameNotFoundException e) {
            context = parent.createSubcontext(name);
        }
        return context;
    }

    /**
     * Closes JNDI contexts.
     *
     * @param contexts the context(s) to close.
     */
    public static void close(Context... contexts) {
        if (contexts != null) {
            for (Context context : contexts) {
                try {
                    if (context != null) {
                        context.close();
                    }
                } catch (NamingException e) {
                    e.printStackTrace();
                }
            }
        }
    }

}