Package com.sun.enterprise.deployment.node.runtime

Source Code of com.sun.enterprise.deployment.node.runtime.EjbNode

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package com.sun.enterprise.deployment.node.runtime;

import java.util.Map;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.logging.Level;
import org.w3c.dom.Node;
import org.w3c.dom.Element;

import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.ServiceReferenceNode;
import com.sun.enterprise.deployment.node.WebServiceEndpointNode;
import com.sun.enterprise.deployment.Descriptor;
import com.sun.enterprise.deployment.EjbDescriptor;
import com.sun.enterprise.deployment.EjbCMPEntityDescriptor;
import com.sun.enterprise.deployment.IASEjbCMPEntityDescriptor;
import com.sun.enterprise.deployment.EjbMessageBeanDescriptor;
import com.sun.enterprise.deployment.EjbSessionDescriptor;
import com.sun.enterprise.deployment.EjbIORConfigurationDescriptor;
import com.sun.enterprise.deployment.EjbBundleDescriptor;
import com.sun.enterprise.deployment.runtime.MdbConnectionFactoryDescriptor;
import com.sun.enterprise.deployment.runtime.BeanPoolDescriptor;
import com.sun.enterprise.deployment.runtime.BeanCacheDescriptor;
import com.sun.enterprise.deployment.runtime.FlushAtEndOfMethodDescriptor;
import com.sun.enterprise.deployment.runtime.CheckpointAtEndOfMethodDescriptor;
import com.sun.enterprise.deployment.QueryDescriptor;
import com.sun.enterprise.deployment.Application;
import com.sun.enterprise.deployment.RunAsIdentityDescriptor;
import com.sun.enterprise.deployment.ResourceReferenceDescriptor;
import com.sun.enterprise.deployment.JmsDestinationReferenceDescriptor;
import com.sun.enterprise.deployment.types.EjbReference;   
import com.sun.enterprise.deployment.xml.RuntimeTagNames;
import com.sun.enterprise.deployment.xml.WebServicesTagNames;
import com.sun.enterprise.deployment.util.DOLUtils;

/**
* This node handles all runtime information for ejbs
*
* @author  Jerome Dochez
* @version
*/
public class EjbNode extends DeploymentDescriptorNode {

    private EjbDescriptor descriptor;
    private String availEnabled;
   
    /** Creates new EjbNode */
    public EjbNode() {
        super();
        registerElementHandler(new XMLElement(RuntimeTagNames.RESOURCE_REFERENCE),
                               ResourceRefNode.class);    
        registerElementHandler(new XMLElement(RuntimeTagNames.EJB_REFERENCE),
                               EjbRefNode.class);            
        registerElementHandler(new XMLElement(RuntimeTagNames.RESOURCE_ENV_REFERENCE),
                               ResourceEnvRefNode.class);     
        registerElementHandler(new XMLElement(RuntimeTagNames.MESSAGE_DESTINATION_REFERENCE),
                               MessageDestinationRefNode.class);     
        registerElementHandler(new XMLElement(WebServicesTagNames.SERVICE_REF),
                               ServiceRefNode.class);
        registerElementHandler(new XMLElement(RuntimeTagNames.CMP),
                               CmpNode.class);
  registerElementHandler(new XMLElement(RuntimeTagNames.MDB_CONNECTION_FACTORY),
        MDBConnectionFactoryNode.class);        
        registerElementHandler(new XMLElement(RuntimeTagNames.IOR_CONFIG),
                               IORConfigurationNode.class,"addIORConfigurationDescriptor");     
        registerElementHandler(new XMLElement(RuntimeTagNames.BEAN_POOL),
                               BeanPoolNode.class);
        registerElementHandler(new XMLElement(RuntimeTagNames.BEAN_CACHE),
                               BeanCacheNode.class);                    
        registerElementHandler(new XMLElement(RuntimeTagNames.MDB_RESOURCE_ADAPTER),
                    MDBResourceAdapterNode.class);
        registerElementHandler(new XMLElement(WebServicesTagNames.WEB_SERVICE_ENDPOINT),
                               WebServiceEndpointRuntimeNode.class);
        registerElementHandler(new XMLElement(RuntimeTagNames.FLUSH_AT_END_OF_METHOD), FlushAtEndOfMethodNode.class);                    
        registerElementHandler(new XMLElement(RuntimeTagNames.CHECKPOINT_AT_END_OF_METHOD), CheckpointAtEndOfMethodNode.class);                    
    }
   
   /**
    * @return the descriptor instance to associate with this XMLNode
    */   
    public Object getDescriptor() {
        return descriptor;
    }
   
    /**
     * receives notification of the value for a particular tag
     *
     * @param element the xml element
     * @param value it's associated value
     */
    public void setElementValue(XMLElement element, String value) {       
        if (RuntimeTagNames.EJB_NAME.equals(element.getQName())) {
            Object parentDesc = getParentNode().getDescriptor();
            if (parentDesc==null) {
    // In J2EE 1.2.x, all ejbs in app were clubbed under
    // one <enterprise-beans> element.
    // So we get the ejbDescriptor from the application
                Object application = getParentNode().getParentNode().getDescriptor();
                if (application!=null && application instanceof Application) {
                    descriptor = ((Application) application).getEjbByName(value);
                }
            } else {
                if (parentDesc instanceof EjbBundleDescriptor) {
                    descriptor = ((EjbBundleDescriptor) parentDesc).getEjbByName(value);
                }
            }
            if (descriptor==null) {
                DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.addDescriptorFailure",
                            new Object[]{element , value});
            } else {
                if (availEnabled != null) {
                    descriptor.getIASEjbExtraDescriptors().setAttributeValue(descriptor.getIASEjbExtraDescriptors().AVAILABILITY_ENABLED, availEnabled);
                }
            }
            return;
        } else if (descriptor==null && ! RuntimeTagNames.AVAILABILITY_ENABLED.equals(element.getQName())) {
            DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.addDescriptorFailure",
                            new Object[] {element.getQName() , value });
        }
        // if this is the availability-enabled attribute, save the value
        // and set it later
  if (RuntimeTagNames.AVAILABILITY_ENABLED.equals(element.getQName())) {
            availEnabled = value;
        } else if (RuntimeTagNames.NAME.equals(element.getQName())) {
      // principal
            if (Boolean.FALSE.equals(descriptor.getUsesCallerIdentity())
                && descriptor.getRunAsIdentity() != null) {
                    descriptor.getRunAsIdentity().setPrincipal(value);
            }
        } else if (RuntimeTagNames.PASS_BY_REFERENCE.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setPassByReference(Boolean.valueOf(value));
  } else if (RuntimeTagNames.PER_REQ_LOAD_BALANCING.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setPerRequestLoadBalancing(Boolean.valueOf(value));
  } else if (RuntimeTagNames.JMS_MAX_MESSAGES_LOAD.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setJmsMaxMessagesLoad((Integer.valueOf(value)).intValue());
  } else if (RuntimeTagNames.IS_READ_ONLY_BEAN.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setIsReadOnlyBean((Boolean.valueOf(value)).booleanValue());
  } else if (RuntimeTagNames.REFRESH_PERIOD_IN_SECONDS.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setRefreshPeriodInSeconds((Integer.valueOf(value)).intValue());
  } else if (RuntimeTagNames.COMMIT_OPTION.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setCommitOption(value);
  } else if (RuntimeTagNames.CMT_TIMEOUT_IN_SECONDS.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setCmtTimeoutInSeconds((Integer.valueOf(value)).intValue());
  } else if (RuntimeTagNames.USE_THREAD_POOL_ID.equals(element.getQName())) {
      descriptor.getIASEjbExtraDescriptors().setUseThreadPoolId(value);
  } else if (RuntimeTagNames.CHECKPOINTED_METHODS.equals(
            element.getQName())) {
            descriptor.getIASEjbExtraDescriptors().setCheckpointedMethods(
                value);
        }
        else super.setElementValue(element, value);
    }
   
    /**
     * all sub-implementation of this class can use a dispatch table to map xml element to
     * method name on the descriptor class for setting the element value.
     * 
     * @return the map with the element name as a key, the setter method as a value
     */   
    protected Map getDispatchTable() {   
        Map table = super.getDispatchTable();
       
        table.put(RuntimeTagNames.JNDI_NAME, "setJndiName");
       
        // gen-classes
        table.put(RuntimeTagNames.REMOTE_IMPL, "setEJBObjectImplClassName");
        table.put(RuntimeTagNames.LOCAL_IMPL, "setEJBLocalObjectImplClassName");
        table.put(RuntimeTagNames.REMOTE_HOME_IMPL, "setRemoteHomeImplClassName");
        table.put(RuntimeTagNames.LOCAL_HOME_IMPL, "setLocalHomeImplClassName");       
       
        // for mdbs...
        table.put(RuntimeTagNames.DURABLE_SUBSCRIPTION, "setDurableSubscriptionName");       
        table.put(RuntimeTagNames.MDB_CONNECTION_FACTORY, "setConnectionFactoryName");               
        table.put(RuntimeTagNames.RESOURCE_ADAPTER_MID, "setResourceAdapterMid");               
        return table;
    }
   
    /**
     * Adds  a new DOL descriptor instance to the descriptor instance associated with
     * this XMLNode
     *
     * @param descriptor the new descriptor
     */
    public void addDescriptor(Object newDescriptor) {
  if (newDescriptor instanceof MdbConnectionFactoryDescriptor) {
      descriptor.getIASEjbExtraDescriptors().setMdbConnectionFactory(
        (MdbConnectionFactoryDescriptor) newDescriptor);
  } else
  if (newDescriptor instanceof BeanPoolDescriptor) {
      descriptor.getIASEjbExtraDescriptors().setBeanPool(
    (BeanPoolDescriptor) newDescriptor);
  } else
  if (newDescriptor instanceof BeanCacheDescriptor) {
      descriptor.getIASEjbExtraDescriptors().setBeanCache(
    (BeanCacheDescriptor) newDescriptor);
  } else
  if (newDescriptor instanceof FlushAtEndOfMethodDescriptor) {
      descriptor.getIASEjbExtraDescriptors().setFlushAtEndOfMethodDescriptor((FlushAtEndOfMethodDescriptor)newDescriptor);
  } else
  if (newDescriptor instanceof CheckpointAtEndOfMethodDescriptor) {
      descriptor.getIASEjbExtraDescriptors().setCheckpointAtEndOfMethodDescriptor((CheckpointAtEndOfMethodDescriptor)newDescriptor);
  }
    }
   
    /**
     * write the descriptor class to a DOM tree and return it
     *
     * @param parent node for the DOM tree
     * @param node name for the descriptor
     * @param the descriptor to write
     * @return the DOM tree top node
     */   
    public Node writeDescriptor(Node parent, String nodeName, EjbDescriptor ejbDescriptor) {   
        Element ejbNode = (Element)super.writeDescriptor(parent, nodeName, ejbDescriptor);
        appendTextChild(ejbNode, RuntimeTagNames.EJB_NAME, ejbDescriptor.getName());
        appendTextChild(ejbNode, RuntimeTagNames.JNDI_NAME, ejbDescriptor.getJndiName());
 
        RuntimeDescriptorNode.writeCommonComponentInfo(ejbNode, (Descriptor) ejbDescriptor);

  appendTextChild(ejbNode, RuntimeTagNames.PASS_BY_REFERENCE,
    String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().getPassByReference()));

  if (ejbDescriptor instanceof IASEjbCMPEntityDescriptor) {
      CmpNode cmpNode = new CmpNode();
      cmpNode.writeDescriptor(ejbNode, RuntimeTagNames.CMP, (IASEjbCMPEntityDescriptor) ejbDescriptor);
  }
 
        // principal
        if ( Boolean.FALSE.equals(ejbDescriptor.getUsesCallerIdentity()) ) {
            RunAsIdentityDescriptor raid = ejbDescriptor.getRunAsIdentity();
            if ( raid != null && raid.getPrincipal() != null ) {
                Node principalNode = appendChild(ejbNode, RuntimeTagNames.PRINCIPAL);
                appendTextChild(principalNode, RuntimeTagNames.NAME,raid.getPrincipal());
            }
        }
 
  if (ejbDescriptor instanceof EjbMessageBeanDescriptor) {
      EjbMessageBeanDescriptor msgBeanDesc = (EjbMessageBeanDescriptor) ejbDescriptor;
           
            // mdb-connection-factory?
            if (ejbDescriptor.getIASEjbExtraDescriptors().getMdbConnectionFactory()!=null) {
                MDBConnectionFactoryNode mcfNode = new MDBConnectionFactoryNode();
                mcfNode.writeDescriptor(ejbNode, RuntimeTagNames.MDB_CONNECTION_FACTORY,
                    ejbDescriptor.getIASEjbExtraDescriptors().getMdbConnectionFactory());
            }
           
            // jms-durable-subscription-name
      if (msgBeanDesc.hasDurableSubscription()) {
    appendTextChild(ejbNode, RuntimeTagNames.DURABLE_SUBSCRIPTION,
      msgBeanDesc.getDurableSubscriptionName());
      }
      appendTextChild(ejbNode, RuntimeTagNames.JMS_MAX_MESSAGES_LOAD,
        String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().getJmsMaxMessagesLoad()));
  }
 
  // ior-configuration
        IORConfigurationNode iorNode = new IORConfigurationNode();
        for (Iterator iorIterator = ejbDescriptor.getIORConfigurationDescriptors().iterator();
            iorIterator.hasNext();) {
                iorNode.writeDescriptor(ejbNode,RuntimeTagNames.IOR_CONFIG, (EjbIORConfigurationDescriptor) iorIterator.next());
        }              
       
  appendTextChild(ejbNode, RuntimeTagNames.IS_READ_ONLY_BEAN,
    String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().isIsReadOnlyBean()));
  appendTextChild(ejbNode, RuntimeTagNames.REFRESH_PERIOD_IN_SECONDS,
    String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().getRefreshPeriodInSeconds()));
  appendTextChild(ejbNode, RuntimeTagNames.COMMIT_OPTION,
    ejbDescriptor.getIASEjbExtraDescriptors().getCommitOption());
  appendTextChild(ejbNode, RuntimeTagNames.CMT_TIMEOUT_IN_SECONDS,
    String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().getCmtTimeoutInSeconds()));
  appendTextChild(ejbNode, RuntimeTagNames.USE_THREAD_POOL_ID,
    ejbDescriptor.getIASEjbExtraDescriptors().getUseThreadPoolId());
 
        // gen-classes
        writeGenClasses(ejbNode, ejbDescriptor);
       
  // bean-pool
  BeanPoolDescriptor beanPoolDesc = ejbDescriptor.getIASEjbExtraDescriptors().getBeanPool();
  if (beanPoolDesc!=null) {
      BeanPoolNode bpNode = new BeanPoolNode();
      bpNode.writeDescriptor(ejbNode, RuntimeTagNames.BEAN_POOL, beanPoolDesc);
  }
 
  // bean-cache
  BeanCacheDescriptor beanCacheDesc = ejbDescriptor.getIASEjbExtraDescriptors().getBeanCache();
  if (beanCacheDesc!=null) {
      BeanCacheNode bcNode = new BeanCacheNode();
      bcNode.writeDescriptor(ejbNode, RuntimeTagNames.BEAN_CACHE, beanCacheDesc);
  }
 
  if (ejbDescriptor instanceof EjbMessageBeanDescriptor) {
      EjbMessageBeanDescriptor msgBeanDesc = (EjbMessageBeanDescriptor) ejbDescriptor;     
            if (msgBeanDesc.hasResourceAdapterMid()) {
                MDBResourceAdapterNode mdb = new MDBResourceAdapterNode();
                mdb.writeDescriptor(ejbNode, RuntimeTagNames.MDB_RESOURCE_ADAPTER, msgBeanDesc);
            }
        } else if( ejbDescriptor instanceof EjbSessionDescriptor ) {
           
            // web-services
            WebServiceEndpointRuntimeNode wsRuntime = new WebServiceEndpointRuntimeNode();
            wsRuntime.writeWebServiceEndpointInfo(ejbNode, ejbDescriptor);
        }

  // flush-at-end-of-method
  FlushAtEndOfMethodDescriptor flushMethodDesc = ejbDescriptor.getIASEjbExtraDescriptors().getFlushAtEndOfMethodDescriptor();
  if (flushMethodDesc!=null) {
      FlushAtEndOfMethodNode flushNode = new FlushAtEndOfMethodNode();
      flushNode.writeDescriptor(ejbNode, RuntimeTagNames.FLUSH_AT_END_OF_METHOD, flushMethodDesc);
  }

        // checkpointed-methods
        ejbDescriptor.getIASEjbExtraDescriptors().parseCheckpointedMethods(ejbDescriptor);

        // checkpoint-at-end-of-method
        CheckpointAtEndOfMethodDescriptor checkpointMethodDesc = ejbDescriptor.getIASEjbExtraDescriptors().getCheckpointAtEndOfMethodDescriptor();
        if (checkpointMethodDesc!=null) {
            CheckpointAtEndOfMethodNode checkpointNode =
                new CheckpointAtEndOfMethodNode();
            checkpointNode.writeDescriptor(ejbNode, RuntimeTagNames.CHECKPOINT_AT_END_OF_METHOD, checkpointMethodDesc);
        }

        appendTextChild(ejbNode, RuntimeTagNames.PER_REQ_LOAD_BALANCING,
    String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().hasPerRequestLoadBalancing()));
 
        // availability-enabled
        setAttribute(ejbNode, RuntimeTagNames.AVAILABILITY_ENABLED, (String) ejbDescriptor.getIASEjbExtraDescriptors().getAttributeValue(ejbDescriptor.getIASEjbExtraDescriptors().AVAILABILITY_ENABLED));

        return ejbNode;
    }

    /**
   * write all the classes info generated at deployment
   * @param parent node for the information
   * @param descriptor the descriptor containing the generated info
   */
    private void writeGenClasses(Node parent, EjbDescriptor ejbDescriptor) {
        // common to all ejbs but mdb...
        Node genClasses = appendChild(parent, RuntimeTagNames.GEN_CLASSES);
       
        appendTextChild(genClasses, RuntimeTagNames.REMOTE_IMPL,
            ejbDescriptor.getEJBObjectImplClassName());
       
        appendTextChild(genClasses, RuntimeTagNames.LOCAL_IMPL,
            ejbDescriptor.getEJBLocalObjectImplClassName());

        appendTextChild(genClasses, RuntimeTagNames.REMOTE_HOME_IMPL,
            ejbDescriptor.getRemoteHomeImplClassName());
       
        appendTextChild(genClasses, RuntimeTagNames.LOCAL_HOME_IMPL,
            ejbDescriptor.getLocalHomeImplClassName());



    }   
}
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