package org.gatein.integration.jboss.as7.deployment;
import org.gatein.cdi.contexts.listeners.CDIServletListener;
import org.gatein.integration.jboss.as7.GateInConfiguration;
import org.jboss.as.ee.component.Attachments;
import org.jboss.as.ee.component.EEApplicationClasses;
import org.jboss.as.ee.component.EEModuleDescription;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.web.deployment.WarMetaData;
import org.jboss.as.web.deployment.WebAttachments;
import org.jboss.as.web.deployment.component.ComponentInstantiator;
import org.jboss.as.web.deployment.component.WebComponentDescription;
import org.jboss.as.web.deployment.component.WebComponentInstantiator;
import org.jboss.as.weld.WeldDeploymentMarker;
import org.jboss.logging.Logger;
import org.jboss.metadata.web.jboss.JBossWebMetaData;
import org.jboss.metadata.web.spec.ListenerMetaData;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
/**
* Adds #{CDIServletListener} into the list of servlet listeners, if not already found,
* and adds the listener as a component to allow injection to be performed on it.
*
* @author <a href="http://community.jboss.org/people/kenfinni">Ken Finnigan</a>
*/
public class CdiWebIntegrationProcessor implements DeploymentUnitProcessor {
private static final Logger log = Logger.getLogger(CdiWebIntegrationProcessor.class);
private static final String CDI_LISTENER = CDIServletListener.class.getName();
private final ListenerMetaData cdiListener;
public CdiWebIntegrationProcessor() {
cdiListener = new ListenerMetaData();
cdiListener.setListenerClass(CDI_LISTENER);
}
@Override
public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
final EEModuleDescription module = deploymentUnit.getAttachment(Attachments.EE_MODULE_DESCRIPTION);
final EEApplicationClasses applicationClasses = deploymentUnit.getAttachment(Attachments.EE_APPLICATION_CLASSES_DESCRIPTION);
if (!GateInConfiguration.isPortletArchive(deploymentUnit)) {
return;
}
if (!WeldDeploymentMarker.isPartOfWeldDeployment(deploymentUnit)) {
return; // skip non weld deployments
}
WarMetaData warMetaData = deploymentUnit.getAttachment(WarMetaData.ATTACHMENT_KEY);
if (warMetaData == null) {
log.debug("Not installing GateIn CDI web tier integration as no war metadata found");
return;
}
JBossWebMetaData webMetaData = warMetaData.getMergedJBossWebMetaData();
if (webMetaData == null) {
log.debug("Not installing GateIn CDI web tier integration as no merged web metadata found");
return;
}
List<ListenerMetaData> listeners = webMetaData.getListeners();
if (listeners == null) {
listeners = new ArrayList<ListenerMetaData>();
webMetaData.setListeners(listeners);
} else {
//if the cdi servlet listener is present remove it
//this should allow wars to be portable between AS7 and servlet containers
final ListIterator<ListenerMetaData> iterator = listeners.listIterator();
while (iterator.hasNext()) {
final ListenerMetaData listener = iterator.next();
if (listener.getListenerClass().trim().equals(CDI_LISTENER)) {
log.debugf("Removing cdi servlet listener %s from web config, as it is not needed in EE6 environments", CDI_LISTENER);
iterator.remove();
break;
}
}
}
listeners.add(0, cdiListener);
// This uses resource injection, so it needs to be a component
final WebComponentDescription componentDescription = new WebComponentDescription(CDI_LISTENER, CDI_LISTENER, module, deploymentUnit.getServiceName(), applicationClasses);
module.addComponent(componentDescription);
final Map<String, ComponentInstantiator> instantiators = deploymentUnit.getAttachment(WebAttachments.WEB_COMPONENT_INSTANTIATORS);
instantiators.put(CDI_LISTENER, new WebComponentInstantiator(deploymentUnit, componentDescription));
}
@Override
public void undeploy(DeploymentUnit context) {
}
}