Hello
I'm trying to get gwt application to work with EJB3 and JPA....
via a servlet it works fine but when i use a factory with a
servicelocator within my
public class ProxyServiceImpl extends RemoteServiceServlet implements
ProxyService, ServiceTemplateInterface {
//@EJB EJBBWBean ejbSession;
/**
*
*/
EJBBWServiceLocal ejbSession =null;
BusinessDelegator businessDelegator = null;
private static final long serialVersionUID = -5280597539333461188L;
public ProxyServiceImpl(){
System.out.println("EJB3ProxyServlet");
businessDelegator =
BusinessDelegatorFactory.getBusinessDelegator();
try{
ejbSession = businessDelegator.getLocalEJBBWService();
}catch(Exception e){
System.err.println("Error occured "+ e.toString());
e.printStackTrace();
}
}
public boolean isAuthorizedPerson(String userId){
boolean isAuthorized = false;
if ( DEBUG
)System.out.println("HomeServiceServlet.isAuthorizedPerson
(" + userId +" ");
if("toine".equals(userId)){
isAuthorized = true;
}
return isAuthorized;
}
public String getUserName(){
return "toine eetgerink";
}
@Override
public boolean isAuthorized(String userId) {
// TODO Auto-generated method stub
return false;
}
@Override
public List<Category> getCategorys() {
// Thanks business delegate! ;-)
return ejbSession.getCategorys();
}
@Override
public List<Subcategory> getSubCategorys(String catName) {
// TODO Auto-generated method stub
return null;
}
@Override
public Users getUserByUserNameandPassword(String userName, String
password){
return null;
//return ejbSession.getUserByUserNamePassword(userName,
password);
}
@Override
public String getTest(){
if( ejbSession == null)
{
try{
ejbSession =
businessDelegator.getLocalEJBBWService();
}catch(Exception e){
System.err.println("Error occured "+
e.toString());
e.printStackTrace();
}
}else{
System.out.println(" getting session"
+ejbSession.getClass().getName
());
}
return ejbSession.getTest();
}
}
with factory ...
package nl.betterwell.bwgxt01.server.services;
import java.util.Hashtable;
import java.util.Properties;
import java.util.logging.Logger;
import javax.naming.Context;
import nl.betterwell.server.services.ServiceLocator;
import nl.betterwell.server.services.ServiceLocatorOPENEJB;
import nl.betterwell.server.services.ServiceLocatorWebSphere;
public class BusinessDelegatorFactory {
private static final Logger log = Logger.getLogger
(BusinessDelegatorFactory.class.getName());
private static ServiceLocator serviceLocator =
ServiceLocatorWebSphere.getInstance();
// return an instance of Business Delegator with serviceLocator
constructor-injected
public static BusinessDelegator getBusinessDelegator() {
return new BusinessDelegator(serviceLocator);
}
/*
*/
}
package nl.betterwell.bwgxt01.server.services;
/**
* Business Delegator
*
* @author toine eetgerink
*/
import java.util.logging.Logger;
import nl.betterwell.server.services.ServiceLocator;
import
nl.betterwell.server.services.ServiceLocator.ServiceLocatorContext;
import nl.betterwell.service.EJBBWServiceLocal;
import nl.betterwell.service.EJBBWServiceRemote;
public class BusinessDelegator {
private static final String EJBBWSERVICEREMOTE
= "nl.betterwell.service.EJBBWServiceRemote";
private static final String EJBBWSERVICELOCAL
= "nl.betterwell.service.EJBBWServiceLocal";
private static Logger log = Logger.getLogger
(BusinessDelegator.class.getName());
private ServiceLocator sl = null;
public BusinessDelegator(ServiceLocator serviceLocator) {
this.sl = serviceLocator;
}
public EJBBWServiceLocal getLocalEJBBWService() {
//return null;
return sl.lookupResource(EJBBWSERVICELOCAL,
ServiceLocatorContext.LOCAL);
}
public EJBBWServiceRemote getRemoteEJBBWService() {
//return null;
return sl.lookupResource(EJBBWSERVICEREMOTE,
ServiceLocatorContext.REMOTE);
}
}
package nl.betterwell.server.services;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.rmi.PortableRemoteObject;
/*
* EJB3 Service Locator
*/
public class ServiceLocatorWebSphere extends ServiceLocator {
static {
try {
setInstance(new ServiceLocatorWebSphere());
cache = Collections.synchronizedMap(new HashMap<String,
Object>());
} catch (NamingException e) {
log.log(Level.SEVERE, e.getMessage());
e.printStackTrace(System.err);
}
};
private static final String REMOTE_EJB_CONTAINER = "myhostname:2812";
public ServiceLocatorWebSphere() throws NamingException {
initLocalServiceLocator();
initRemoteServiceLocator
(REMOTE_EJB_CONTAINER,"username","password"); // TODO
}
private void initLocalServiceLocator() throws NamingException { //
get Abstract!
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY,
"com.ibm.websphere.naming.WsnInitialContextFactory");
ctx = new InitialContext(properties);
log.log(Level.INFO, "Local Initial Context ServiceLocator
created.");
}
private void initRemoteServiceLocator(String url, String user, String
password) throws NamingException {
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY,
"com.ibm.websphere.naming.WsnInitialContextFactory");
properties.put(Context.SECURITY_CREDENTIALS, user);
properties.put(Context.SECURITY_PRINCIPAL, password);
ctxRemote = new InitialContext(properties);
log.log(Level.INFO, "Remote Initial Context ServiceLocator
created.");
}
@SuppressWarnings("unchecked")
public <T> T lookupResource(String idResource, ServiceLocatorContext
slc) {
if (cache.containsKey(idResource)) // TODO check Local or
Remote?
return (T) cache.get(idResource);
return (T) ((slc == ServiceLocatorContext.LOCAL) ?
lookupLocalResource(idResource)
:
lookupRemoteResource(idResource));
}
@SuppressWarnings("unchecked")
private <T> T lookupLocalResource(String idResource) {
try {
log.log(Level.INFO, "OK... let's lookup Local (" +
idResource +
") !");
T ref = (T) ctx.lookup("ejblocal:"+ idResource );
cache.put(idResource, ref);
return ref;
} catch (NamingException e) {
log.log(Level.SEVERE, e.getMessage());
e.printStackTrace();
}
return null;
}
@SuppressWarnings("unchecked")
private <T> T lookupRemoteResource(String idResource) {
try {
log.log(Level.INFO, "OK... let's lookup Remote (" +
idResource +
") !");
T ref = (T) ctxRemote.lookup(idResource);
T ejb =
(T)PortableRemoteObject.narrow(ref,Object.class);
cache.put(idResource, ejb);
return ref;
} catch (NamingException e) {
log.log(Level.SEVERE, e.getMessage());
e.printStackTrace();
}
return null;
}
}
CAN ANYONE PLEASE HELP
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