/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This 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; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package com.example.switchyard.switchyard_example;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;

import org.apache.ws.security.WSPasswordCallback;

public class KeystorePasswordCallback implements CallbackHandler {
	private Map<String, String> passwords = new HashMap<String, String>();

	public KeystorePasswordCallback() {
		passwords.put("alice", "welcome1");
		passwords.put("bob", "welcome1");
		passwords.put("swevolutivo", "welcome2");
	}

	/**
	 * It attempts to get the password from the private alias/passwords map.
	 */
	public void handle(Callback[] callbacks) throws IOException,
			UnsupportedCallbackException {
		for (int i = 0; i < callbacks.length; i++) {
			WSPasswordCallback pc = (WSPasswordCallback) callbacks[i];

			String pass = passwords.get(pc.getIdentifier());
			if (pass != null) {
				pc.setPassword(pass);
				return;
			}
		}
	}

	/**
	 * Add an alias/password pair to the callback mechanism.
	 */
	public void setAliasPassword(String alias, String password) {
		passwords.put(alias, password);
	}
}
