/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.jooby.servlet;
import static java.util.Objects.requireNonNull;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.jooby.Env;
import org.jooby.Jooby;
import org.jooby.spi.Server;
import com.google.inject.Binder;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import com.typesafe.config.ConfigValueFactory;
public class ServerInitializer implements ServletContextListener {
public static class ServletModule implements Jooby.Module {
@Override
public void configure(final Env env, final Config config, final Binder binder) {
binder.bind(Server.class).toInstance(ServletContainer.NOOP);
}
}
@Override
public void contextInitialized(final ServletContextEvent sce) {
ServletContext ctx = sce.getServletContext();
String appClass = ctx.getInitParameter("application.class");
requireNonNull(appClass, "Context param NOT found: application.class");
try {
Jooby app = (Jooby) ctx.getClassLoader().loadClass(appClass).newInstance();
app.use(ConfigFactory.empty()
.withValue("application.path", ConfigValueFactory.fromAnyRef(ctx.getContextPath()))
.withValue("server.module", ConfigValueFactory.fromAnyRef(ServletModule.class.getName())));
app.start();
ctx.setAttribute(Jooby.class.getName(), app);
} catch (Throwable ex) {
throw new IllegalStateException("App didn't to start: " + appClass, ex);
}
}
@Override
public void contextDestroyed(final ServletContextEvent sce) {
ServletContext ctx = sce.getServletContext();
Jooby app = (Jooby) ctx.getAttribute(Jooby.class.getName());
if (app != null) {
app.stop();
}
}
}