/*
* Copyright 2011 JBoss, by 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.ioc.rebind.ioc.builtin;
import java.lang.annotation.Annotation;
import org.jboss.errai.bus.client.api.Local;
import org.jboss.errai.bus.client.framework.MessageBus;
import org.jboss.errai.bus.server.annotations.Service;
import org.jboss.errai.codegen.framework.Statement;
import org.jboss.errai.codegen.framework.util.Stmt;
import org.jboss.errai.ioc.client.api.CodeDecorator;
import org.jboss.errai.ioc.rebind.ioc.IOCDecoratorExtension;
import org.jboss.errai.ioc.rebind.ioc.InjectableInstance;
import org.jboss.errai.ioc.rebind.ioc.InjectionContext;
@CodeDecorator
public class ServiceIOCExtension extends IOCDecoratorExtension<Service> {
public ServiceIOCExtension(Class<Service> decoratesWith) {
super(decoratesWith);
}
@Override
public Statement generateDecorator(InjectableInstance<Service> decContext) {
final InjectionContext ctx = decContext.getInjectionContext();
/**
* Ensure the the container generates a stub to internally expose the field if it's private.
*/
decContext.ensureMemberExposed();
final Statement busHandle = ctx.getInjector(MessageBus.class).getType(ctx, decContext);
/**
* Figure out the service name;
*/
final String svcName = decContext.getAnnotation().value().equals("")
? decContext.getMemberName() : decContext.getAnnotation().value();
boolean local = false;
for (Annotation a : decContext.getQualifiers()) {
if (Local.class.equals(a.annotationType())) {
local = true;
}
}
if (local) {
return Stmt.nestedCall(busHandle)
.invoke("subscribeLocal", svcName, decContext.getValueStatement());
}
else {
return Stmt.nestedCall(busHandle)
.invoke("subscribe", svcName, decContext.getValueStatement());
}
}
}