/*
 *   Copyright 2014 Brian Rosenberger (Brutex Network)
 *
 *   Licensed 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 net.brutex.emitter;

import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.log4j.Logger;

/**
 * The EventManagerContext class represents the eventmanager endpoint and authentication credentials.
 *
 * @author Brian Rosenberger, bru(at)brutex.de
 * @since 0.1
 */
public class EventManagerContext {
	
	private Logger logger = Logger.getLogger(EventManagerContext.class);
	
	private final URL url;
	private final String user;
	private final byte[] pass;
	
	private static final String CHARSET_UTF8 = "UTF-8";
	
	/**
	 * Create a new Eventmanager context.
	 * 
	 * @param url	URL for the SBM ALF Eventmanager
	 * @param username	ALFSecurity user name
	 * @param password  ALFSecurity password
	 * @throws MalformedURLException
	 */
	public EventManagerContext(String url, String username, String password) throws MalformedURLException {
		//Verify URL
		try {
			this.url = new URL(url);
		} catch (MalformedURLException e) {
			logger.error(String.format("Could not parse '%s' as a valid URL. %s", url, e.getMessage()));
			throw e;
		}
		
		//Verify username
		this.user = username;		
		if(this.user==null) {
			final String s = "Username for ALF Eventmanager cannot be null.";
			logger.error(s);
			throw new IllegalArgumentException(s);
		}
		
		//Verify password
		try {
			this.pass = password.getBytes(CHARSET_UTF8);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			throw new IllegalArgumentException(e.getMessage());
		}
		if(this.pass==null) {
			final String s = "Password for ALF Eventmanager cannot be null.";
			logger.error(s);
			throw new IllegalArgumentException(s);
		}		
		
	}

	public URL getUrl() {
		return url;
	}
	
	public String getUser() {
		return user;
	}
	
	public byte[] getPass() {
		return pass;
	}
}