/*
* Copyright 2009 JBoss, a divison Red Hat, Inc
*
* 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.errai.cdi.server;
import org.jboss.errai.bus.client.api.Message;
import org.jboss.errai.bus.client.framework.MessageBus;
import org.jboss.errai.bus.server.annotations.Service;
import org.jboss.errai.bus.server.service.ErraiService;
import org.jboss.errai.container.ServiceFactory;
import org.jboss.weld.environment.se.Weld;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Set;
/**
* @author: Heiko Braun <hbraun@redhat.com>
* @date: Sep 15, 2010
*/
public class Util {
private static final String ERRAI_SERVICE_JNDI = "java:comp/ErraiService";
private static final String BEAN_MANAGER_JNDI = "java:comp/BeanManager";
private static final String BEAN_MANAGER_FALLBACK_JNDI = "java:comp/env/BeanManager";
public static Object lookupCallbackBean(BeanManager beanManager, Class<?> serviceType) {
Set<Bean<?>> beans = beanManager.getBeans(serviceType);
Bean<?> bean = beanManager.resolve(beans);
if (bean == null) {
return null;
}
CreationalContext<?> context = beanManager.createCreationalContext(bean);
return beanManager.getReference(bean, serviceType, context);
}
public static String getSessionId(Message message) {
String sessionID = message.getResource(String.class, "SessionID");
return sessionID;
}
public static <T> T lookupRPCBean(BeanManager beanManager, T rpcIntf, Class beanClass) {
Set<Bean<?>> beans = beanManager.getBeans(beanClass);
Bean<?> bean = beanManager.resolve(beans);
CreationalContext<?> context = beanManager.createCreationalContext(bean);
return (T) beanManager.getReference(bean, beanClass, context);
}
@Deprecated
public static MessageBus lookupMessageBus() {
InitialContext ctx = null;
ErraiService errai = null;
try {
ctx = new InitialContext();
errai = (ErraiService) ctx.lookup("java:/Errai");
} catch (NamingException e) {
if (ctx != null) {
try {
errai = (ErraiService) ctx.lookup("java:comp/env/Errai"); // development mode
} catch (NamingException e1) {
}
}
if (null == errai)
throw new RuntimeException("Failed to locate Errai service instance", e);
}
return errai.getBus();
}
public static ErraiService lookupErraiService() {
InitialContext ctx = null;
ErraiService erraiService = null;
try {
ctx = new InitialContext();
erraiService = (ErraiService) ctx.lookup(ERRAI_SERVICE_JNDI);
} catch (NamingException e) {
if (ctx != null) {
try {
erraiService = ServiceFactory.create();
ctx.bind(ERRAI_SERVICE_JNDI, erraiService);
} catch (NamingException e1) {
}
}
if (null == erraiService)
throw new RuntimeException("Failed to locate or create ErraiService", e);
}
return erraiService;
}
public static BeanManager lookupBeanManager() {
InitialContext ctx = null;
BeanManager bm = null;
try {
ctx = new InitialContext();
bm = (BeanManager) ctx.lookup(BEAN_MANAGER_JNDI);
} catch (NamingException e) {
if (ctx != null) {
try {
bm = (BeanManager) ctx.lookup(BEAN_MANAGER_FALLBACK_JNDI); // development mode
} catch (NamingException e1) {
}
}
/**
* Experimental stand-alone Weld-support
*/
if (bm == null) {
try {
Weld weld = new Weld();
ctx.bind(BEAN_MANAGER_JNDI, weld.initialize().getBeanManager());
return lookupBeanManager();
} catch (NamingException e2) {
bm = null;
}
}
if (null == bm)
throw new RuntimeException("Failed to locate BeanManager", e);
}
return bm;
}
public static String resolveServiceName(Class<?> type) {
String subjectName = type.getAnnotation(Service.class).value();
if (subjectName.equals("")) subjectName = type.getSimpleName();
return subjectName;
}
}