/*
 * (c) Copyright 2009 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package org.databene.platform.jndi;

import java.util.Properties;

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

/**
 * Provides InitialContext operations with a more convenient property-based setup..<br/><br/>
 * Created: 21.10.2009 19:47:17
 * @since 0.6.0
 * @author Volker Bergmann
 */
public class InitialContext {

	private String url;
	private String factory;
	private String user;
	private String password;
	
	private javax.naming.InitialContext realContext;

	public InitialContext() {
    }

	public String getUrl() {
    	return url;
    }

	public void setUrl(String url) {
    	this.url = url;
    }

	public String getFactory() {
    	return factory;
    }

	public void setFactory(String factory) {
    	this.factory = factory;
    }

	public String getUser() {
    	return user;
    }

	public void setUser(String user) {
    	this.user = user;
    }

	public String getPassword() {
    	return password;
    }

	public void setPassword(String password) {
    	this.password = password;
    }
	
	// interface -------------------------------------------------------------------------------------------------------
	
	public Object lookup(String name) throws NamingException {
		return getRealContext().lookup(name);
	}

	// private helpers -------------------------------------------------------------------------------------------------
	
	private javax.naming.InitialContext getRealContext() throws NamingException {
	    if (realContext == null)
	    	init();
	    return realContext;
    }

	private void init() throws NamingException {
	    if (factory != null) {
	    	Properties p = new Properties();
	    	p.setProperty(Context.INITIAL_CONTEXT_FACTORY, factory);
	    	p.setProperty(Context.PROVIDER_URL, url);
	    	p.setProperty(Context.SECURITY_PRINCIPAL, user);
	    	p.setProperty(Context.SECURITY_CREDENTIALS, password);
	    	realContext = new javax.naming.InitialContext(p);
	    } else
	    	realContext = new javax.naming.InitialContext();
    }
	
}