com.autentia.common.util.JndiUtils.java Source code

Introduction

Here is the source code for com.autentia.common.util.JndiUtils.java

Source

/**
 * Copyright 2008 Autentia Real Business Solutions S.L.
 * 
 * This file is part of autentia-util.
 * 
 * autentia-util 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, version 3 of the License.
 * 
 * autentia-util 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 autentia-util. If not, see <http://www.gnu.org/licenses/>.
 */

package com.autentia.common.util;

import javax.naming.InitialContext;
import javax.naming.NamingException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public final class JndiUtils {

    private static final Log log = LogFactory.getLog(JndiUtils.class);

    private JndiUtils() {
        // Para cumplir con el patrn singleton.
    }

    private static InitialContext ctx;

    private static InitialContext getInitialContext() {
        if (ctx == null) {
            try {
                ctx = new InitialContext();
            } catch (NamingException e) {
                log.fatal("It is not possible to create a new InitialContext.", e);
                throw new RuntimeException(e);
            }
        }
        return ctx;
    }

    public static Object jndiLookup(String jndiName) throws NamingException {
        final Object obj;
        try {
            obj = getInitialContext().lookup(jndiName);
            if (log.isDebugEnabled())
                log.debug("Found JNDI name: " + jndiName);
        } catch (NamingException e) {
            log.error("Cannot find JNDI name: " + jndiName);
            throw e;
        }
        return obj;
    }

}