JaasAuthenticationInvocationHandler.java

/*
 * Jopr Management Platform
 * Copyright (C) 2005-2009 Red Hat, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation, and/or the GNU Lesser
 * General Public License, version 2.1, also as published by the Free
 * Software Foundation.
 *
 * This program 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 and the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * and the GNU Lesser General Public License along with this program;
 * if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package org.rhq.plugins.jbossas5.connection;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;

import javax.security.auth.login.LoginException;
import javax.security.auth.login.LoginContext;
import javax.security.auth.login.Configuration;

import org.rhq.plugins.jbossas5.connection.jaas.JBossCallbackHandler;
import org.rhq.plugins.jbossas5.connection.jaas.JBossConfiguration;

/**
 * @author Ian Springer
 */
public class JaasAuthenticationInvocationHandler implements InvocationHandler {    
    private Object target;
    private LoginContext loginContext;

    public JaasAuthenticationInvocationHandler(Object target, String username, String password) {
        this.target = target;                
        JBossCallbackHandler jaasCallbackHandler = new JBossCallbackHandler(username, password);
        Configuration jaasConfig = new JBossConfiguration();
        try {
            this.loginContext = new LoginContext(JBossConfiguration.JBOSS_ENTRY_NAME, null, jaasCallbackHandler,
                    jaasConfig);
        }
        catch (LoginException e) {
            throw new RuntimeException(e);
        }
    }

    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        this.loginContext.login();
        Object returnValue = method.invoke(this.target, args);
        this.loginContext.logout();
        return returnValue;
    }
}