5:44 a.m.
Hi,
I think there is a bug in the handling of local-home-jndi-name when using the ejb3
deployer.
I am trying to set up some local SLSB beans to respond to a legacy SLSB. Initally when I
tried this I get ClassCastExceptions on the proxy returned from JNDI. I corrected this on
remote connections by replacing the jndi-name with home-jndi-name in jboss.xml.
Logically I thought the fix for local connections would be to use local-home-jndi-name,
this deploys fine but the corresponding JNDI entry is actually a proxy to the local
interface, not the local home interface.
Below is the test code I am using to verify this:
Remote bean:
| public class RemoteHomeTestEJB implements SessionBean {
|
| private SessionContext context = null;
|
| /*
| * (non-Javadoc)
| *
| * @see javax.ejb.SessionBean#ejbActivate()
| */
| public void ejbActivate() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| /*
| * (non-Javadoc)
| *
| * @see javax.ejb.SessionBean#ejbPassivate()
| */
| public void ejbPassivate() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| /*
| * (non-Javadoc)
| *
| * @see javax.ejb.SessionBean#ejbRemove()
| */
| public void ejbRemove() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| public void ejbCreate() {
| //Do nothing.
| }
|
| /*
| * (non-Javadoc)
| *
| * @see javax.ejb.SessionBean#setSessionContext(javax.ejb.SessionContext)
| */
| public void setSessionContext(SessionContext ctx) throws EJBException,
| RemoteException {
| context = ctx;
| }
|
| public String getHello() {
| try {
| LocalHomeTestHome home = null;
| home = ServiceLocator.locateHome(LocalHomeTestHome.class,
| "java:comp/env/local/LocalHomeTest");
| return home.create().getHello();
| } catch (Exception e) {
| StringWriter stringWriter = new StringWriter();
| PrintWriter writer = new PrintWriter(stringWriter);
| e.printStackTrace(writer);
| return stringWriter.toString();
| }
| }
| }
|
ServiceLocater.java
| public class ServiceLocator {
| private static final Logger LOG = Logger.getLogger(ServiceLocator.class);
|
| @SuppressWarnings("unchecked")
| public static <T> T locateHome(Class<T> clazz, String location)
| throws NamingException {
| T home = null;
| Context ic = new InitialContext();
|
| Object potentialHome = ic.lookup(location);
| if (clazz.isInstance(potentialHome)) {
| home = (T) potentialHome;
| } else {
| home = (T) PortableRemoteObject.narrow(potentialHome, clazz);
| }
| return home;
| }
| }
|
Local bean:
| public class LocalHomeTestEJB implements SessionBean {
|
| /* (non-Javadoc)
| * @see javax.ejb.SessionBean#ejbActivate()
| */
| public void ejbActivate() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| /* (non-Javadoc)
| * @see javax.ejb.SessionBean#ejbPassivate()
| */
| public void ejbPassivate() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| public void ejbCreate() {
| //Do nothing.
| }
|
| /* (non-Javadoc)
| * @see javax.ejb.SessionBean#ejbRemove()
| */
| public void ejbRemove() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| /* (non-Javadoc)
| * @see javax.ejb.SessionBean#setSessionContext(javax.ejb.SessionContext)
| */
| public void setSessionContext(SessionContext ctx) throws EJBException,
| RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| public String getHello() {
| return "Hello from Aerosystems";
| }
|
| }
|
ejb-jar.xml:
| <ejb-jar version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
| xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd">
|
| <description>Simple migration testing to see how to move to EJB
3</description>
| <display-name>EjbMigration</display-name>
|
| <enterprise-beans>
| <session>
| <description><![CDATA[EcardGenerationFacadeSessionEJB
Bean]]></description>
| <display-name>LocalHomeTest</display-name>
|
| <ejb-name>LocalHomeTest</ejb-name>
|
<remote>com.aeroint.ejbtest.common.RemoteHomeTestInterface</remote>
|
<local-home>com.aeroint.ejbtest.server.session.LocalHomeTestHome</local-home>
|
<local>com.aeroint.ejbtest.server.session.LocalHomeTestInterface</local>
|
<ejb-class>com.aeroint.ejbtest.server.session.LocalHomeTestEJB</ejb-class>
|
| <session-type>Stateless</session-type>
| <transaction-type>Container</transaction-type>
| </session>
|
| <session>
| <description><![CDATA[EcardUpdateFacadeSessionEJB
Bean]]></description>
| <display-name>RemoteHomeTest</display-name>
|
| <ejb-name>RemoteHomeTest</ejb-name>
|
| <home>com.aeroint.ejbtest.common.RemoteHomeTestHome</home>
|
<remote>com.aeroint.ejbtest.common.RemoteHomeTestInterface</remote>
|
<ejb-class>com.aeroint.ejbtest.server.facade.RemoteHomeTestEJB</ejb-class>
| <session-type>Stateless</session-type>
| <transaction-type>Container</transaction-type>
|
| <ejb-local-ref >
| <ejb-ref-name>local/LocalHomeTest</ejb-ref-name>
| <ejb-ref-type>Session</ejb-ref-type>
|
<local-home>com.aeroint.ejbtest.server.session.LocalHomeTestHome</local-home>
|
<local>com.aeroint.ejbtest.server.session.LocalHomeTestInterface</local>
| <ejb-link>LocalHomeTest</ejb-link>
| </ejb-local-ref>
|
| </session>
| </enterprise-beans>
| </ejb-jar>
|
jboss.xml
| <jboss xmlns="http://java.sun.com/xml/ns/javaee"
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
| xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
| http://www.jboss.org/j2ee/schema/jboss_5_0.xsd"
| version="3.0">
| <enterprise-beans>
| <session>
| <ejb-name>RemoteHomeTest</ejb-name>
| <home-jndi-name>remote/RemoteHomeTest</home-jndi-name>
| </session>
| <session>
| <ejb-name>LocalHomeTest</ejb-name>
| <local-home-jndi-name>local/LocalHomeTest</local-home-jndi-name>
| </session>
| </enterprise-beans>
| </jboss>
|
Thanks in advance,
Shane
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