maia/.svn/pristine/73/73d7cefb55b425ecc6bdf09188f...

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package com.fp.facadeclient.helper;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import com.fp.common.logger.APPLogger;
import com.fp.facadeclient.ejb.FacadeBeanRemote;
/**
* Clase utilitaria que mantiene una coneccion con el bean de fachada de entrada al core que esta desplegado en jboss 7.
* @author Jorge Vaca.
* @version 2.1
*/
public class ServiceLocatorJboss7 {
/**
* Almacena una instancia de ServiceLocatorJboss.
*/
private static ServiceLocatorJboss7 cache;
private FacadeBeanRemote facadebeanremote;
/**
* Entrega una instancia de ServiceLocatorJboss.
* @return ServiceLocator
*/
public static ServiceLocatorJboss7 getInstance() {
if (ServiceLocatorJboss7.cache != null) {
return ServiceLocatorJboss7.cache;
}
synchronized (ServiceLocatorJboss7.class) {
if (ServiceLocatorJboss7.cache == null) {
ServiceLocatorJboss7.cache = new ServiceLocatorJboss7();
}
}
return ServiceLocatorJboss7.cache;
}
/**
* Entrega un proxy de los ejb remotos.
* @return FacadeBeanRemote
*/
public FacadeBeanRemote getFacadeRemote() throws Exception {
if (this.facadebeanremote == null) {
APPLogger.getLogger().error("Obtiene una coneccion con el core");
this.facadebeanremote = ServiceLocatorJboss7.lookupRemoteStatelessFacadeBean();
}
return this.facadebeanremote;
}
/**
* Looks up and returns the proxy to remote stateless calculator bean
* @return
* @throws NamingException
*/
private static FacadeBeanRemote lookupRemoteStatelessFacadeBean() throws NamingException {
Hashtable<String, String> jndiProperties = new Hashtable<String, String>();
jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
Context context = new InitialContext(jndiProperties);
// The app name is the application name of the deployed EJBs. This is typically the ear name
// without the .ear suffix. However, the application name could be overridden in the application.xml of the
// EJB deployment on the server.
// Since we haven't deployed the application as a .ear, the app name for us will be an empty string
final String appName = "maiaear-2.1";
// This is the module name of the deployed EJBs on the server. This is typically the jar name of the
// EJB deployment, without the .jar suffix, but can be overridden via the ejb-jar.xml
// In this example, we have deployed the EJBs in a jboss-as-ejb-remote-app.jar, so the module name is
// jboss-as-ejb-remote-app
final String moduleName = "facade";
// AS7 allows each deployment to have an (optional) distinct name. We haven't specified a distinct name for
// our EJB deployment, so this is an empty string
final String distinctName = "";
// The EJB name which by default is the simple class name of the bean implementation class
// final String beanName = FacadeBean.class.getSimpleName();
final String beanName = "facadebean"; // esto porque en el ejb esta el nombre del bean cambiado.
// the remote view fully qualified class name
final String viewClassName = FacadeBeanRemote.class.getName();
// let's do the lookup
String aux = "ejb:" + appName + "/" + moduleName + "/" + distinctName + "/" + beanName + "!" + viewClassName;
return (FacadeBeanRemote) context.lookup(aux);
}
// LIbrerias
// jboss-client-7.1.0.Final.jar esta bajo jbos-as-7.1.0.final\bin\client
}