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package com.sun.ejb;
import com.sun.ejb.containers.EJBContextImpl;
import com.sun.ejb.containers.EJBTimerServiceWrapper;
import com.sun.ejb.containers.EJBTimerService;
import com.sun.enterprise.container.common.spi.EjbNamingReferenceManager;
import com.sun.enterprise.deployment.EjbReferenceDescriptor;
import org.glassfish.api.invocation.ComponentInvocation;
import org.glassfish.api.invocation.InvocationManager;
import org.glassfish.enterprise.iiop.api.GlassFishORBHelper;
import javax.inject.Inject;
import org.jvnet.hk2.annotations.Service;
import javax.inject.Provider;
import javax.naming.Context;
import com.sun.enterprise.util.Utility;
import org.omg.CORBA.ORB;
import javax.naming.NamingException;
/**
* @author Mahesh Kannan
*/
@Service
public class EjbNamingReferenceManagerImpl
implements EjbNamingReferenceManager {
private static final String CORBANAME = "corbaname:";
@Inject
InvocationManager invMgr;
@Inject
Provider<GlassFishORBHelper> glassFishORBHelperProvider;
@Override
public Object resolveEjbReference(EjbReferenceDescriptor ejbRefDesc, Context context)
throws NamingException {
Object jndiObj = null;
boolean resolved = false;
if( ejbRefDesc.isLocal() ) {
// local ejb dependencies if there's a lookup string, use that.
// Otherwise, the ejb will be resolved by EJBUtils.
if( ejbRefDesc.hasLookupName()) {
jndiObj = context.lookup(ejbRefDesc.getLookupName());
resolved = true;
}
} else if (!ejbRefDesc.hasJndiName() && ejbRefDesc.hasLookupName()) {
// For a remote reference, only do a context lookup if there is no
// jndi name.
// The thread context class loader usually is the EAR class loader,
// which is able to load business interfaces. But if the lookup request
// originated from appclient, and the ejb-ref is under java:app/env,
// and it also has a lookup-name, then we need to set the EAR class
// loader to the thread. Issue 17376.
try {
jndiObj = context.lookup(ejbRefDesc.getLookupName());
} catch (NamingException e) {
ClassLoader oldLoader = null;
try {
oldLoader = Utility.setContextClassLoader(
ejbRefDesc.getReferringBundleDescriptor().getClassLoader());
jndiObj = context.lookup(ejbRefDesc.getLookupName());
} finally {
Utility.setContextClassLoader(oldLoader);
}
}
resolved = true;
} else if( ejbRefDesc.hasJndiName() &&
ejbRefDesc.getJndiName().startsWith("java:app/") &&
!ejbRefDesc.getJndiName().startsWith("java:app/env/")) {
// This could be an @EJB dependency in an appclient whose target name
// is a portable java:app ejb name. Try the global version. If that
// doesn't work, the javaURLContext logic should be able to figure it
// out.
String remoteJndiName = ejbRefDesc.getJndiName();
String appName = (String) context.lookup("java:app/AppName");
String newPrefix = "java:global/" + appName + "/";
int javaAppLength = "java:app/".length();
String globalLookup = newPrefix + remoteJndiName.substring(javaAppLength);
jndiObj = context.lookup(globalLookup);
resolved = true;
} else {
// Get actual jndi-name from ejb module.
String remoteJndiName = EJBUtils.getRemoteEjbJndiName(ejbRefDesc);
// We could be resolving an ejb-ref as part of a remote lookup thread. In that
// case the context class loader won't be set appropriately on the thread
// being used to process the remote naming request. We can't just always
// set the context class loader to the class loader of the application module
// that defined the ejb reference. That would cause ClassCastExceptions
// when the returned object is assigned within a cross-application intra-server
// lookup. So, just try to lookup the interface associated with the ejb-ref
// using the context class loader. If that doesn't work, explicitly use the
// defining application's class loader.
ClassLoader origClassLoader = Utility.getClassLoader();
boolean setCL = false;
try {
try {
String refInterface = ejbRefDesc.isEJB30ClientView() ?
ejbRefDesc.getEjbInterface() : ejbRefDesc.getHomeClassName();
origClassLoader.loadClass(refInterface);
} catch(ClassNotFoundException e) {
ClassLoader referringBundleClassLoader =
ejbRefDesc.getReferringBundleDescriptor().getClassLoader();
Utility.setContextClassLoader(referringBundleClassLoader);
setCL = true;
}
/* For remote ejb refs, first lookup the target remote object
* and pass it to the next stage of ejb ref resolution.
* If the string is a "corbaname:...." URL
* the lookup happens thru the corbanameURL context,
* else it happens thru the context provided by the NamingManager.
*
* NOTE : we might need some additional logic to handle cross-server
* MEJB resolution for cluster support post V3 FCS.
*/
if (remoteJndiName.startsWith(CORBANAME)) {
GlassFishORBHelper orbHelper = glassFishORBHelperProvider.get();
ORB orb = orbHelper.getORB();
jndiObj = (Object) orb.string_to_object(remoteJndiName);
} else {
jndiObj = context.lookup(remoteJndiName);
}
} catch(Exception e) {
// Important to make the real underlying lookup name part of the exception.
NamingException ne = new NamingException("Exception resolving Ejb for '" +
ejbRefDesc + "' . Actual (possibly internal) Remote JNDI name used for lookup is '" +
remoteJndiName + "'");
ne.initCause(e);
throw ne;
} finally {
if( setCL ) {
Utility.setContextClassLoader(origClassLoader);
}
}
}
return resolved ? jndiObj : EJBUtils.resolveEjbRefObject(ejbRefDesc, jndiObj);
}
public boolean isEjbReferenceCacheable(EjbReferenceDescriptor ejbRefDesc) {
// Ejb-ref is only eligible for caching if it refers to the legacy
// Home view and it is resolved to an ejb within the same application.
return ( (!ejbRefDesc.isEJB30ClientView()) &&
(ejbRefDesc.getEjbDescriptor() != null) );
// caching not enabled.
//return false;
}
public Object getEJBContextObject(String contextType) {
ComponentInvocation currentInv = invMgr.getCurrentInvocation();
if(currentInv == null) {
throw new IllegalStateException("no current invocation");
} else if (currentInv.getInvocationType() !=
ComponentInvocation.ComponentInvocationType.EJB_INVOCATION) {
throw new IllegalStateException
("Illegal invocation type for EJB Context : "
+ currentInv.getInvocationType());
}
EjbInvocation ejbInv = (EjbInvocation) currentInv;
Object returnObject = ejbInv.context;
if( contextType.equals("javax.ejb.TimerService") ) {
if (EJBTimerService.getEJBTimerService() == null ) {
throw new IllegalStateException("EJB Timer Service not " +
"available");
}
returnObject = new EJBTimerServiceWrapper
(EJBTimerService.getEJBTimerService(), (EJBContextImpl) ejbInv.context);
}
return returnObject;
}
}