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// Portions Copyright [2016-2019] [Payara Foundation and/or its affiliates]

package org.glassfish.ejb.deployment.node.runtime;

import com.sun.enterprise.deployment.EjbIORConfigurationDescriptor;
import com.sun.enterprise.deployment.EjbSessionDescriptor;
import com.sun.enterprise.deployment.RunAsIdentityDescriptor;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.runtime.EjbRefNode;
import com.sun.enterprise.deployment.node.runtime.MessageDestinationRefNode;
import com.sun.enterprise.deployment.node.runtime.ResourceEnvRefNode;
import com.sun.enterprise.deployment.node.runtime.ResourceRefNode;
import com.sun.enterprise.deployment.node.runtime.RuntimeDescriptorNode;
import com.sun.enterprise.deployment.node.runtime.ServiceRefNode;
import com.sun.enterprise.deployment.node.runtime.WebServiceEndpointRuntimeNode;
import com.sun.enterprise.deployment.runtime.BeanPoolDescriptor;
import com.sun.enterprise.deployment.util.DOLUtils;
import com.sun.enterprise.deployment.xml.RuntimeTagNames;
import com.sun.enterprise.deployment.xml.TagNames;
import com.sun.enterprise.deployment.xml.WebServicesTagNames;
import fish.payara.cluster.DistributedLockType;
import java.util.Map;
import java.util.logging.Level;
import org.glassfish.ejb.deployment.descriptor.EjbBundleDescriptorImpl;
import org.glassfish.ejb.deployment.descriptor.EjbDescriptor;
import org.glassfish.ejb.deployment.descriptor.EjbMessageBeanDescriptor;
import org.glassfish.ejb.deployment.descriptor.IASEjbCMPEntityDescriptor;
import org.glassfish.ejb.deployment.descriptor.runtime.BeanCacheDescriptor;
import org.glassfish.ejb.deployment.descriptor.runtime.CheckpointAtEndOfMethodDescriptor;
import org.glassfish.ejb.deployment.descriptor.runtime.FlushAtEndOfMethodDescriptor;
import org.glassfish.ejb.deployment.descriptor.runtime.IASEjbExtraDescriptors;
import org.glassfish.ejb.deployment.descriptor.runtime.MdbConnectionFactoryDescriptor;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

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

    private EjbDescriptor descriptor;
    private String availEnabled;

    public EjbNode() {
        super();
        registerElementHandler(new XMLElement(TagNames.RESOURCE_REFERENCE), 
                               ResourceRefNode.class);
        registerElementHandler(new XMLElement(TagNames.EJB_REFERENCE), 
                               EjbRefNode.class);             
        registerElementHandler(new XMLElement(TagNames.RESOURCE_ENV_REFERENCE), 
                               ResourceEnvRefNode.class);
        registerElementHandler(new XMLElement(TagNames.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);
    }

    @Override
    public EjbDescriptor getDescriptor() {
        return descriptor;
    }

    /**
     * receives notification of the value for a particular tag
     * 
     * @param element the xml element
     * @param value it's associated value
     */
    @Override
    public void setElementValue(XMLElement element, String value) {
        String qName = element.getQName();
        boolean isAvailabilityEnabled = RuntimeTagNames.AVAILABILITY_ENABLED.equals(qName);
        if (RuntimeTagNames.EJB_NAME.equals(qName)) {
            Object parentDesc = getParentNode().getDescriptor();
            if (parentDesc != null) {
                if (parentDesc instanceof EjbBundleDescriptorImpl) {
                    descriptor = ((EjbBundleDescriptorImpl) 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(IASEjbExtraDescriptors.AVAILABILITY_ENABLED, availEnabled);
                }
            }
            return;
        } else if (descriptor==null && !isAvailabilityEnabled) {
            DOLUtils.getDefaultLogger().log(Level.SEVERE, "enterprise.deployment.backend.addDescriptorFailure",
                    new Object[] {qName , value });
            super.setElementValue(element, value);
            return;
        }
        // if this is the availability-enabled attribute, save the value
        // and set it later
        if (isAvailabilityEnabled) {
            availEnabled = value;
        } else if (RuntimeTagNames.NAME.equals(qName)) {
            // principal
            if (Boolean.FALSE.equals(descriptor.getUsesCallerIdentity())
                    && descriptor.getRunAsIdentity() != null) {
                descriptor.getRunAsIdentity().setPrincipal(value);
            }
        } else if (RuntimeTagNames.PASS_BY_REFERENCE.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setPassByReference(Boolean.valueOf(value));
        } else if (RuntimeTagNames.JMS_MAX_MESSAGES_LOAD.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setJmsMaxMessagesLoad(Integer.parseInt(value));
        } else if (RuntimeTagNames.IS_READ_ONLY_BEAN.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setIsReadOnlyBean((Boolean.valueOf(value)).booleanValue());
        } else if (RuntimeTagNames.REFRESH_PERIOD_IN_SECONDS.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setRefreshPeriodInSeconds(Integer.parseInt(value));
        } else if (RuntimeTagNames.COMMIT_OPTION.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setCommitOption(value);
        } else if (RuntimeTagNames.CMT_TIMEOUT_IN_SECONDS.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setCmtTimeoutInSeconds(Integer.parseInt(value));
        } else if (RuntimeTagNames.USE_THREAD_POOL_ID.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setUseThreadPoolId(value);
        } else if (RuntimeTagNames.CHECKPOINTED_METHODS.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setCheckpointedMethods(value);
        } else if(RuntimeTagNames.PER_REQUEST_LOAD_BALANCING.equals(qName)) {
            descriptor.getIASEjbExtraDescriptors().setPerRequestLoadBalancing(Boolean.valueOf(value));
        } else if(RuntimeTagNames.PAYARA_CLUSTERED_BEAN.equals(qName)) {
            ((org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor)descriptor).setClustered(Boolean.valueOf(value));
        } else if(RuntimeTagNames.PAYARA_CLUSTERED_KEY_NAME.equals(qName)) {
            ((org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor)descriptor).setClusteredKeyValue(value);
        } else if(RuntimeTagNames.PAYARA_CLUSTERED_LOCK_TYPE.equals(qName)) {
            org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor ejbDesc = (org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor)descriptor;
            switch(value.toLowerCase()) {
            case "inherit":
                ejbDesc.setClusteredLockType(DistributedLockType.INHERIT);
                break;
            case "none":
                ejbDesc.setClusteredLockType(DistributedLockType.LOCK_NONE);
                break;
            default:
                DOLUtils.getDefaultLogger().log(Level.WARNING, "Invalid clustered lock type: {0}", value);
            }
        } else if(RuntimeTagNames.PAYARA_CLUSTERED_POSTCONSTRUCT_ON_ATTACH.equals(qName)) {
            ((org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor)descriptor).setDontCallPostConstructOnAttach(!Boolean.valueOf(value));
        } else if(RuntimeTagNames.PAYARA_CLUSTERED_PREDESTROY_ON_DETTACH.equals(qName)) {
            ((org.glassfish.ejb.deployment.descriptor.EjbSessionDescriptor)descriptor).setDontCallPreDestroyOnDetach(!Boolean.valueOf(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
     */    
    @Override
    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;
    }

    @Override
    public boolean endElement(XMLElement element) {
        if(RuntimeTagNames.EJB.equals(element.getQName())) {
            descriptor.getIASEjbExtraDescriptors().parseCheckpointedMethods(descriptor);
        }
        return super.endElement(element);
    }
    
    /**
     * Adds  a new DOL descriptor instance to the descriptor instance associated with 
     * this XMLNode
     *
     * @param descriptor the new descriptor
     */
    @Override
    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
     */    
    @Override
    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, 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 (EjbIORConfigurationDescriptor iorConf : ejbDescriptor.getIORConfigurationDescriptors()) {
            iorNode.writeDescriptor(ejbNode,RuntimeTagNames.IOR_CONFIG, iorConf);
        }               
        
	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
        // 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);
        }
        if (ejbDescriptor.getIASEjbExtraDescriptors().getPerRequestLoadBalancing() != null) {
            appendTextChild(ejbNode, RuntimeTagNames.PER_REQUEST_LOAD_BALANCING, String.valueOf(ejbDescriptor.getIASEjbExtraDescriptors().getPerRequestLoadBalancing()));
        }
        // availability-enabled
        setAttribute(ejbNode, RuntimeTagNames.AVAILABILITY_ENABLED, ejbDescriptor.getIASEjbExtraDescriptors().getAttributeValue(IASEjbExtraDescriptors.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 static 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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