WebappAuthenticatorFrameworkBundleActivator.java

/*
 *   Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 *   WSO2 Inc. licenses this file to you 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 org.wso2.carbon.webapp.authenticator.framework.internal;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.wso2.carbon.tomcat.ext.valves.CarbonTomcatValve;
import org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer;
import org.wso2.carbon.webapp.authenticator.framework.DataHolder;
import org.wso2.carbon.webapp.authenticator.framework.WebappAuthenticator;
import org.wso2.carbon.webapp.authenticator.framework.WebappAuthenticatorFrameworkValve;
import org.wso2.carbon.webapp.authenticator.framework.WebappAuthenticatorRepository;
import org.wso2.carbon.webapp.authenticator.framework.config.AuthenticatorConfig;
import org.wso2.carbon.webapp.authenticator.framework.config.WebappAuthenticatorConfig;

import java.util.ArrayList;
import java.util.List;

public class WebappAuthenticatorFrameworkBundleActivator implements BundleActivator {

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

    @Override
    public void start(BundleContext bundleContext) throws Exception {
        if (log.isDebugEnabled()) {
            log.debug("Starting Web Application Authenticator Framework Bundle");
        }
        try {
            WebappAuthenticatorConfig.init();

            WebappAuthenticatorRepository repository = new WebappAuthenticatorRepository();
            for (AuthenticatorConfig config : WebappAuthenticatorConfig.getInstance().getAuthenticators()) {
                WebappAuthenticator authenticator =
                        (WebappAuthenticator) Class.forName(config.getClassName()).newInstance();
                repository.addAuthenticator(authenticator);
            }
            DataHolder.setWebappAuthenticatorRepository(repository);

            List<CarbonTomcatValve> valves = new ArrayList<CarbonTomcatValve>();
            valves.add(new WebappAuthenticatorFrameworkValve());
            TomcatValveContainer.addValves(valves);

            if (log.isDebugEnabled()) {
                log.debug("Web Application Authenticator Framework Bundle has been started successfully");
            }
        } catch (Throwable e) {
            log.error("Error occurred while initializing the bundle", e);
        }
    }

    @Override
    public void stop(BundleContext bundleContext) throws Exception {
        //do nothing
    }

}