/*
* JBoss, Home of Professional Open Source
* Copyright 2015, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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 org.jboss.weld.tests.contexts.application.event;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.Initialized;
import javax.enterprise.event.Observes;
import javax.servlet.ServletContext;
public abstract class AbstractObserver {
public abstract String getName();
private Object observed;
synchronized void observeObject(@Observes @Initialized(ApplicationScoped.class) Object event) {
storeLocally(event);
if (!EventRepository.OBJECTS.add(getName())) {
throw new IllegalStateException("Event delivered multiple times " + event);
}
}
synchronized void observeServletContext(@Observes @Initialized(ApplicationScoped.class) ServletContext event) {
if (!event.getContextPath().equals("/" + getName())) {
throw new IllegalArgumentException("Excepted /" + getName() + " but received " + event.getContextPath());
}
storeLocally(event);
if (!EventRepository.SERVLET_CONTEXTS.add(getName())) {
throw new IllegalStateException("Event delivered multiple times " + event);
}
}
private void storeLocally(Object event) {
if (observed != null && observed != event) {
throw new IllegalStateException("Event delivered multiple times " + event + "; " + observed);
}
observed = event;
}
}