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/*
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*
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*
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package com.sun.enterprise.connectors.inbound;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.resource.spi.ActivationSpec;
import javax.resource.spi.ResourceAdapter;
import javax.resource.spi.UnavailableException;
import javax.resource.spi.endpoint.MessageEndpoint;
import javax.resource.spi.endpoint.MessageEndpointFactory;
import javax.transaction.xa.XAResource;
import com.sun.appserv.connectors.internal.api.ConnectorConstants;
import com.sun.appserv.connectors.internal.api.ConnectorRuntimeException;
import com.sun.appserv.connectors.internal.api.ConnectorsUtil;
import com.sun.enterprise.config.serverbeans.Cluster;
import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.connectors.ActiveResourceAdapter;
import com.sun.enterprise.connectors.ConnectorRegistry;
import com.sun.enterprise.connectors.ConnectorRuntime;
import com.sun.enterprise.connectors.util.SetMethodAction;
import com.sun.enterprise.deployment.ConnectorDescriptor;
import com.sun.enterprise.deployment.EjbMessageBeanDescriptor;
import com.sun.enterprise.deployment.MessageListener;
import com.sun.enterprise.resource.ResourceHandle;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.logging.LogDomains;
import org.glassfish.ejb.api.MessageBeanListener;
import org.glassfish.ejb.api.MessageBeanProtocolManager;
import org.glassfish.ejb.spi.MessageBeanClient;
import org.glassfish.internal.api.Globals;
import org.glassfish.server.ServerEnvironmentImpl;
/**
* Main helper implementation for message-beans associated with
* a queue. Uses connection consumer for concurrent message
* delivery.
*
* @author Qingqing Ouyang
*/
public final class ConnectorMessageBeanClient
implements MessageBeanClient, MessageEndpointFactory {
private String activationName;
private ConnectorRegistry registry_;
private MessageBeanProtocolManager messageBeanPM_;
private final EjbMessageBeanDescriptor descriptor_;
private final BasicResourceAllocator allocator_;
private Class beanClass_;
private boolean started_ = false;
private final int CREATED = 0;
private final int BLOCKED = 1;
private final int UNBLOCKED = 2;
private int myState = CREATED;
private final long WAIT_TIME = 60000;
private static final String RA_MID="com.sun.enterprise.connectors.inbound.ramid";
private StringManager localStrings =
StringManager.getManager(ConnectorMessageBeanClient.class);
//unique identify a message-driven bean
private String beanID_; //appName:modlueID:beanName
private static final Logger logger =
LogDomains.getLogger(ConnectorMessageBeanClient.class, LogDomains.RSR_LOGGER);
/**
* Creates an instance of ConnectorMessageBeanClient
*
* @param descriptor EjbMessageBeanDescriptor object.
*/
public ConnectorMessageBeanClient(EjbMessageBeanDescriptor descriptor) {
this.descriptor_ = descriptor;
allocator_ = new BasicResourceAllocator();
String appName = descriptor.getApplication().getName();
String moduleID = descriptor.getEjbBundleDescriptor().getModuleID();
String beanName = descriptor.getName();
activationName = null;
beanID_ = appName + ":" + moduleID + ":" + beanName;
registry_ = ConnectorRegistry.getInstance();
}
/**
* Gets executed as part of message bean deployment. Creates the
* ActivationSpec javabean and does endpointfactory
* activation with the resource adapter. This code also converts
* all J2EE 1.3 MDB properties to MQ resource adapter activation
* spec properties, if user doesnt specifies resource adapter
* module name in sun-ejb-jar.xml of the MDB. This is done using
* com.sun.enterprise.connector.system.ActiveJmsResourceAdapter
*
*
* @param messageBeanPM MessageBeanProtocolManager object.
*/
public void setup(MessageBeanProtocolManager messageBeanPM) throws Exception {
ClassLoader loader = descriptor_.getEjbBundleDescriptor().getClassLoader();
if (loader == null) {
loader = Thread.currentThread().getContextClassLoader();
}
beanClass_ = loader.loadClass(descriptor_.getEjbClassName());
messageBeanPM_ = messageBeanPM;
String resourceAdapterMid = getResourceAdapterMid(descriptor_);
ActiveInboundResourceAdapter aira = getActiveResourceAdapter(resourceAdapterMid);
aira.updateMDBRuntimeInfo(descriptor_,
messageBeanPM_.getPoolDescriptor());
//the resource adapter this MDB client is deployed to
ResourceAdapter ra = aira.getResourceAdapter();
if(ra == null){
String i18nMsg = localStrings.getString("msg-bean-client.ra.class.not.specified", resourceAdapterMid);
throw new ConnectorRuntimeException(i18nMsg);
}
ConnectorDescriptor desc = aira.getDescriptor();
MessageListener msgListener = getMessageListener(desc);
String activationSpecClassName = null;
if (msgListener != null) {
activationSpecClassName = msgListener.getActivationSpecClass();
}
if (activationSpecClassName != null) {
if (logger.isLoggable(Level.FINEST)) {
String msg = "ActivationSpecClassName = " + activationSpecClassName;
logger.log(Level.FINEST, msg);
}
try {
ActivationSpec activationSpec = getActivationSpec(aira, activationSpecClassName);
activationSpec.setResourceAdapter(ra);
//at this stage, activation-spec is created, config properties merged with ejb-descriptor.
//validate activation-spec now
ConnectorRuntime runtime = ConnectorRuntime.getRuntime();
runtime.getConnectorBeanValidator().validateJavaBean(activationSpec, resourceAdapterMid);
aira.validateActivationSpec(activationSpec);
myState = BLOCKED;
ra.endpointActivation(this, activationSpec);
aira.addEndpointFactoryInfo(beanID_,
new MessageEndpointFactoryInfo(this, activationSpec));
} catch (Exception ex) {
Object args[] = new Object[]{resourceAdapterMid, activationSpecClassName, ex};
logger.log(Level.WARNING, "endpoint.activation.failure", args);
throw (Exception) (new Exception()).initCause(ex);
}
} else {
//FIXME throw some exception here.
throw new Exception("Unsupported message listener type");
}
}
/**
* derive the resource-adapter-mid in the following order
* a) specified in the glassfish-ejb-jar / sun-ejb-jar descriptor
* b) jms-ra message-listener of type javax.jms.MessageListener
* c) Check the resource-adapters supporting the message-listener-type and
* if there is only one use it, otherwise fail.
* @param descriptor_ EJB Descriptor
* @return resource-adapter-mid (resource-adapter-name)
* @throws ConnectorRuntimeException
*/
private String getResourceAdapterMid(EjbMessageBeanDescriptor descriptor_) throws ConnectorRuntimeException {
String resourceAdapterMid = descriptor_.getResourceAdapterMid();
if (resourceAdapterMid == null) {
resourceAdapterMid = System.getProperty(RA_MID);
}
if (resourceAdapterMid == null) {
String messageListener = descriptor_.getMessageListenerType();
//DOL of MDB descriptor has default value as "javax.jms.MessageListener" which
//will take care of the case when the message-listener-type is not specified in the DD
if(ConnectorConstants.JMS_MESSAGE_LISTENER.equals(messageListener)){
resourceAdapterMid = ConnectorRuntime.DEFAULT_JMS_ADAPTER;
logger.fine("No ra-mid is specified, using default JMS Resource Adapter for message-listener-type " +
"["+descriptor_.getMessageListenerType()+"]");
}else{
List resourceAdapters =
ConnectorRegistry.getInstance().getConnectorsSupportingMessageListener(messageListener);
if(resourceAdapters.size() == 1){
resourceAdapterMid = resourceAdapters.get(0);
String message = localStrings.getString("msg-bean-client.defaulting.message-listener.supporting.rar",
resourceAdapterMid, messageListener);
logger.info(message);
}else if(resourceAdapters.size()<=0){
String message = localStrings.getString("msg-bean-client.could-not-detect-ra-mid",
descriptor_.getMessageListenerType() );
throw new ConnectorRuntimeException(message);
}else{
String message = localStrings.getString("msg-bean-client.multiple-ras-supporting-message-listener",
messageListener);
throw new ConnectorRuntimeException(message);
}
}
}
return resourceAdapterMid;
}
private ActivationSpec getActivationSpec(ActiveInboundResourceAdapter aira, String activationSpecClassName)
throws Exception {
ClassLoader cl = aira.getClassLoader();
Class aClass = cl.loadClass(activationSpecClassName);
if (logger.isLoggable(Level.FINEST)) {
logger.log(Level.FINEST, "classloader = "
+ aClass.getClassLoader());
logger.log(Level.FINEST, "classloader parent = "
+ aClass.getClassLoader().getParent());
}
ActivationSpec activationSpec =
(ActivationSpec) aClass.newInstance();
Set props = ConnectorsUtil.getMergedActivationConfigProperties(getDescriptor());
AccessController.doPrivileged(new SetMethodAction(activationSpec, props));
return activationSpec;
}
private MessageListener getMessageListener(ConnectorDescriptor desc) {
String msgListenerType = getDescriptor().getMessageListenerType();
if (msgListenerType == null || "".equals(msgListenerType))
msgListenerType = "javax.jms.MessageListener";
Iterator i =
desc.getInboundResourceAdapter().getMessageListeners().iterator();
MessageListener msgListener = null;
while (i.hasNext()) {
msgListener = (MessageListener) i.next();
if (msgListenerType.equals(msgListener.getMessageListenerType()))
break;
}
return msgListener;
}
private ActiveInboundResourceAdapter getActiveResourceAdapter(String resourceAdapterMid) throws Exception {
Object activeRar = registry_.getActiveResourceAdapter(resourceAdapterMid);
// Except system-rars, all other rars are loaded eagerly.
// Check whether the rar is a system-rar.
// (as of now, jms-ra is the only inbound system-rar)
if (activeRar == null && ConnectorsUtil.belongsToSystemRA(resourceAdapterMid)) {
ConnectorRuntime crt = ConnectorRuntime.getRuntime();
crt.loadDeferredResourceAdapter(resourceAdapterMid);
activeRar = registry_.getActiveResourceAdapter(resourceAdapterMid);
}
if (activeRar == null) {
String msg = "Resource adapter " + resourceAdapterMid + " is not deployed";
throw new ConnectorRuntimeException(msg);
}
if (!(activeRar instanceof ActiveInboundResourceAdapter)) {
throw new Exception("Resource Adapter selected doesn't support Inbound");
}
return (ActiveInboundResourceAdapter) activeRar;
}
/**
* Marks the completion of MDB deployment. Unblocks the createEndPoint
* method call.
*
* @throws Exception
*/
public void start() throws Exception {
logger.logp(Level.FINEST,
"ConnectorMessageBeanClient", "start", "called...");
started_ = true;
synchronized (this) {
myState = UNBLOCKED;
notifyAll();
}
}
/**
* Does endpoint deactivation with the resource adapter.
* Also remove sthe MessageEndpointFactoryInfo
* from house keeping.
*/
public void close() {
logger.logp(Level.FINEST,
"ConnectorMessageBeanClient", "close", "called...");
started_ = false; //no longer available
String resourceAdapterMid = null;
try {
resourceAdapterMid = getResourceAdapterMid(descriptor_);
} catch (ConnectorRuntimeException e) {
String message = localStrings.getString("msg-bean-client.could-not-derive-ra-mid", descriptor_.getName());
logger.log(Level.WARNING, message, e);
}
ActiveResourceAdapter activeRar =
registry_.getActiveResourceAdapter(resourceAdapterMid);
if (activeRar instanceof ActiveInboundResourceAdapter) { //in case the RA is already undeployed
ActiveInboundResourceAdapter rar = (ActiveInboundResourceAdapter) activeRar;
MessageEndpointFactoryInfo info = rar.getEndpointFactoryInfo(beanID_);
if (info != null) {
rar.getResourceAdapter().endpointDeactivation(
info.getEndpointFactory(), info.getActivationSpec());
rar.removeEndpointFactoryInfo(beanID_);
} else {
logger.log(Level.FINE, "Not de-activating the end point, since it is not activated");
}
}
}
private EjbMessageBeanDescriptor getDescriptor() {
return descriptor_;
}
/**
* Creates a MessageEndpoint. This method gets blocked either until start()
* is called or until one minute. This is the time for completion
* of MDB deployment.
*
* Internally this method creates a message bean listener from the MDB
* container and a proxy object fo delivering messages.
*
* @return MessageEndpoint object.
* @throws UnavailableException
* In case of any failure. This
* should change.
*/
public MessageEndpoint
createEndpoint(XAResource xa) throws UnavailableException {
// This is a temporary workaround for blocking the the create enpoint
// until the deployment completes. One thread would wait for maximum a
// a minute.
return createEndpoint(xa, WAIT_TIME);
}
/**
* Checks whether the message delivery is transacted for the method.
*
* @return true or false.
*/
public boolean isDeliveryTransacted(Method method) {
return messageBeanPM_.isDeliveryTransacted(method);
}
/**
* @return beanID of the message bean client
*/
public String toString() {
return beanID_;
}
/**
* {@inheritDoc}
*/
public MessageEndpoint createEndpoint(XAResource xaResource, long timeout) throws UnavailableException {
synchronized (this) {
while (myState == BLOCKED) {
try {
wait(timeout);
} catch (Exception e) {
// This exception should not affect the functionality.
} finally {
// Once the first thread comes out of wait, block is
// is removed. This makes sure that the time for which the
// the block remains is limited. Max 2x6000.
myState = UNBLOCKED;
}
}
}
if (!started_) {
logger.log(Level.WARNING, "endpointfactory.unavailable");
throw new UnavailableException(
"EndpointFactory is currently not available");
}
MessageEndpoint endpoint = null;
try {
ResourceHandle resourceHandle = allocator_.createResource(xaResource);
MessageBeanListener listener =
messageBeanPM_.createMessageBeanListener(resourceHandle);
MessageEndpointInvocationHandler handler =
new MessageEndpointInvocationHandler(listener, messageBeanPM_);
endpoint = (MessageEndpoint) messageBeanPM_.createMessageBeanProxy(handler);
} catch (Exception ex) {
throw (UnavailableException)
(new UnavailableException()).initCause(ex);
}
return endpoint;
}
/**
* {@inheritDoc}
* @Override
*/
public String getActivationName(){
if(activationName == null){
String appName = descriptor_.getApplication().getName();
String moduleID = descriptor_.getEjbBundleDescriptor().getModuleID();
int pound = moduleID.indexOf("#");
if(pound>=0){
// the module ID is in the format: appName#ejbName.jar
// remove the appName part since it is duplicated
moduleID = moduleID.substring(pound+1);
}
String mdbClassName = descriptor_.getEjbClassName();
ServerEnvironmentImpl env = Globals.get(ServerEnvironmentImpl.class);
String instanceName = env.getInstanceName();
Domain domain = Globals.get(Domain.class);
String domainName = domain.getName();
Cluster cluster = domain.getServerNamed(instanceName).getCluster();
String clusterName=null;
if(cluster!=null){
// this application is deployed in a cluster
clusterName = cluster.getName();
}
if(clusterName!=null){
// this application is deployed in a cluster
activationName = combineString(domainName, clusterName, appName, moduleID, mdbClassName);
}else{
// this application is deployed in a stand-alone server instance.
activationName = combineString(domainName, instanceName, appName, moduleID, mdbClassName);
}
}
return activationName;
}
// /**
// * Compute the activation name according to the names of domain, cluster, instance,
// * application, module and MDB.
// *
// * Check whether the combination of the activation name and instance name
// * is longer than 128 characters. If yes, then compact the activation name.
// *
// */
// public String computeActivationName(String domainName, String clusterName,
// String instanceName, String appName, String moduleID, String mdbName){
//
// if(clusterName!=null){
// // this application is deployed in a cluster
// String fullActivationName = combineString(domainName, clusterName, appName, moduleID, mdbName);
// // Check if the combination of activation name and instance name is longer
// // than 128 characters. If yes, then compact it.
// // BootstrapContextImpl.getInstanceName() will return at most 24 characters
// int instanceLenth = Math.min(instanceName.length(), BootstrapContextImpl.MAX_INSTANCE_LENGTH);
// if((fullActivationName.length()+instanceLenth)>127){
// String compactedName = compactActivationName(fullActivationName, domainName,
// clusterName, instanceName, appName, moduleID, mdbName);
// logger.log(Level.INFO, "The original activation is: "+fullActivationName
// +", because it is too long, compact it to: "+compactedName);
// return compactedName;
// }else{
// return fullActivationName;
// }
//
// }else{
// // this application is deployed in a stand-alone server instance.
// String fullActivationName = combineString(domainName, instanceName, appName, moduleID, mdbName);
// if(fullActivationName.length()>128){
// String compactedName = compactActivationName(fullActivationName, domainName,
// instanceName, appName, moduleID, mdbName);
// logger.log(Level.INFO, "The original activation is: "+fullActivationName
// +", because it is too long, compact it to: "+compactedName);
// return compactedName;
// }else{
// return fullActivationName;
// }
// }
// }
// /*
// * This method is called when the server is a clustered instance.
// *
// * Compact the activationName so that the combination of it and instance name
// * is no longer than 128 characters. The combination of activation name and
// * instance name is of the format:
// * domain_cluster_application_module_mdb_MD5_instance
// *
// * The basic idea is that:
// * 1. Add the MD5 digest of the original activationName. This can ensure the
// * (almost) uniqueness of the activation name. The new activation name
// * will be of the format: domain_cluster_application_module_mdb_MD5
// * 2. The instance name is no longer than 24 characters, the method
// * BootstrapContextImpl.getInstanceName() will truncate instance name
// * if need.
// * 3. Truncate the longest element among the domain, instance, application,
// * module and mdb names, until the combination of new activation
// * name and instance name is no longer than 128 characters.
// *
// */
// private String compactActivationName(String originalActivationName,
// String domainName, String clusterName, String instanceName,
// String appName, String moduleID, String mdbName){
//
// String[] names = new String[5];
// names[0] = domainName;
// names[1] = clusterName;
// names[2] = appName;
// names[3] = moduleID;
// names[4] = mdbName;
//
// // the instanceName is longer than 24 characters.
// int instanceLenth = Math.min(instanceName.length(), BootstrapContextImpl.MAX_INSTANCE_LENGTH);
//
// // the MD5 digestion has 32 characters, the remaining capacity
// // is 128-(32 + size_of_instanceName + 2).
// int maxTotal = 94 - instanceLenth;
// StringBuilder compacted = compactString(names, maxTotal);
//
// String digest = computeMD5(originalActivationName);
// compacted.append("_").append(digest);
// return compacted.toString();
// }
//
// /*
// * This method is called when the server is a stand-alone instance.
// *
// * Compact the activationName so that it is no longer than 128 characters.
// * The new activation name is of the format:
// * domain_instance_application_module_mdb_MD5
// *
// * The basic idea is that:
// * 1. Add the MD5 digest of the original activationName which can ensure the
// * (almost) uniqueness of the activation.
// * 2. Truncate the longest element among the domain, instance, application,
// * module and mdb names, until the combination of them and MD5
// * digestion is no longer than 128 characters.
// *
// */
// private String compactActivationName(String originalActivationName, String domainName,
// String instanceName, String appName, String moduleID, String mdbName){
//
// String[] names = new String[5];
// names[0] = domainName;
// names[1] = instanceName;
// names[2] = appName;
// names[3] = moduleID;
// names[4] = mdbName;
// // the MD5 digestion has 32 characters, the remaining capacity is
// // (128-32-1) = 95 characters.
// StringBuilder compacted = compactString(names, 95);
//
// String digest = computeMD5(originalActivationName);
// compacted.append("_").append(digest);
// return compacted.toString();
// }
//
// /*
// * Compact the given Strings so that their total size is no longer than
// * maxTotal characters.
// *
// * Find the longest string, truncate its first half part, because in the most
// * cases, the last characters are more significant. Do this operation until
// * the total size is no longer than maxTotal:
// *
// */
// private StringBuilder compactString(String[] texts, int maxTotal){
// int arrayLengh = texts.length;
//
// int total=0;
// for(int i=0; imaxTotal){
// // find the longest item
// int longestLength = 0;
// int longestIndex = 0;
// for(int i=0; ilongestLength){
// longestLength = texts[i].length();
// longestIndex=i;
// }
// }
// // truncate the first half part of the string
// // because it seems that the last characters are more significant.
// int trunctionSize= Math.min(longestLength>>1, total-maxTotal);
// texts[longestIndex]=texts[longestIndex].substring(trunctionSize, longestLength);
//
// // re-compute the total size
// total -= trunctionSize;
// }
//
// StringBuilder sb = new StringBuilder(128);
// sb.append(texts[0]);
// for(int i=1; i getEndpointClass() {
return beanClass_;
}
// private String computeMD5(String message){
// StringBuilder sb = new StringBuilder(32);
// try {
// MessageDigest md5 = MessageDigest.getInstance("MD5");
// md5.update(message.getBytes());
// byte[] digest = md5.digest();
//
// for(int i=0; i>4)&0x0F));
// sb.append(Integer.toHexString(digest[i]&0x0F));
// }
//
// } catch (NoSuchAlgorithmException ignore) {
// ignore.printStackTrace();
// }
//
// return sb.toString();
// }
}
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