/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.enterprise.distributedtx;
import java.util.*;
import java.rmi.RemoteException;
import javax.transaction.*;
import javax.transaction.xa.*;
import com.sun.enterprise.*;
import com.sun.ejb.*;
import com.sun.enterprise.resource.*;
import com.sun.enterprise.log.Log;
import javax.servlet.Servlet;
import javax.servlet.Filter;
import javax.servlet.SingleThreadModel;
import javax.ejb.EnterpriseBean;
import javax.resource.spi.XATerminator;
import javax.resource.spi.work.WorkException;
// START IASRI 4662745
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.ConfigBean;
import com.sun.enterprise.config.serverbeans.ServerBeansFactory;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.server.ApplicationServer;
import com.sun.enterprise.server.ServerContext;
import com.sun.enterprise.config.ConfigException;
import com.sun.enterprise.config.serverbeans.TransactionService;
import com.sun.enterprise.config.serverbeans.ElementProperty;
import com.sun.enterprise.transaction.TransactionAdminBean;
import com.sun.enterprise.transaction.JTSConfigChangeEventListener;
import com.sun.enterprise.admin.event.tx.JTSEvent;
import com.sun.enterprise.util.i18n.StringManager;
// END IASRI 4662745
//
import com.sun.enterprise.util.InvocationManagerImpl;
import com.sun.jts.jta.TransactionManagerImpl;
//START OF IASRI 4664284
import java.util.logging.*;
import com.sun.logging.*;
//END OF IASRI 4664284
// START IASRI 4705808 TTT001 -- use BaseCache instead of Hashtable
import com.sun.appserv.util.cache.Cache;
import com.sun.appserv.util.cache.BaseCache;
// END IASRI 4705808 TTT001
import com.sun.ejb.ComponentContext;
/**
* This class implements the Transaction Manager for the J2EE RI.
* It provides implementations of the JTA TransactionManager interface,
* which delegates actual transaction work to JTS.
* It also implements the association between transactions, resources and
* components at various stages of the component lifecycle.
*
* @author Tony Ng
*/
public class J2EETransactionManagerImpl implements J2EETransactionManager {
// START OF IASRI 4664284
static Logger _logger=LogDomains.getLogger(LogDomains.JTA_LOGGER);
// END OF IASRI 4664284
private static final String TX_TIMEOUT = "transaction.timeout";
private static final String TX_OPT = "transaction.nonXA.optimization";
// an implementation of the JTA TransactionManager provided by JTS.
private TransactionManager tm;
// If multipleEnlistDelists is set to true, with in the transaction, for the same
// - connection multiple enlistments and delistments might happen
// - By setting the System property ALLOW_MULTIPLE_ENLISTS_DELISTS to true
// - multipleEnlistDelists can be enabled
private boolean multipleEnlistDelists = false;
// Sting Manager for Localization
private static StringManager sm = StringManager.getManager(J2EETransactionManagerImpl.class);
protected InvocationManager invMgr;
protected PoolManager poolmgr;
// START OF IASRI 4629815
//
//protected ResourcePoolManager resourcePoolMgr; //Added by Miriam - ECU
// START OF IASRI 4629815
//
protected int transactionTimeout;
protected ThreadLocal<Integer> txnTmout = new ThreadLocal();
protected boolean useLAO = true;
// START IASRI 4662745
// admin and monitoring related parameters
protected Hashtable statusMap;
protected Vector activeTransactions;
protected boolean monitoringEnabled = false;
static protected int JTAStatus[] =
{
javax.transaction.Status.STATUS_ACTIVE,
javax.transaction.Status.STATUS_MARKED_ROLLBACK,
javax.transaction.Status.STATUS_PREPARED,
javax.transaction.Status.STATUS_COMMITTED,
javax.transaction.Status.STATUS_ROLLEDBACK,
javax.transaction.Status.STATUS_UNKNOWN,
javax.transaction.Status.STATUS_NO_TRANSACTION,
javax.transaction.Status.STATUS_PREPARING,
javax.transaction.Status.STATUS_COMMITTING,
javax.transaction.Status.STATUS_ROLLING_BACK
};
static protected String STATUS[] =
{
"Active",
"MarkedRollback",
"Prepared",
"Committed",
"RolledBack",
"UnKnown",
"NoTransaction",
"Preparing",
"Committing",
"RollingBack"
};
protected int m_transCommitted = 0;
protected int m_transRolledback = 0;
protected int m_transInFlight = 0;
// END IASRI 4662745
/**
* instance -> resource list mapping
* // START IASRI 4705808 TTT002 -- use List instead of Vector
* For EJB, a mapping of EnterpriseBean -> ArrayList
* For Servlets/JSPs, a mapping of <Context+Thread> -> ArrayList
* // END IASRI 4705808 TTT002
*/
// START IASRI 4705808 TTT001 -- use BaseCache instead of Hashtable
private Cache resourceTable;
// END IASRI 4705808 TTT001
public J2EETransactionManagerImpl() {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: Initializing distributed TM...");
//tm = TransactionManagerImpl.getTransactionManagerImpl();
if( Switch.getSwitch().getPoolManager() == null ) {
poolmgr = new PoolManagerImpl();
Switch.getSwitch().setPoolManager( poolmgr );
} else {
poolmgr = Switch.getSwitch().getPoolManager();
}
Switch.getSwitch().setPoolManager(poolmgr);
ResourceInstaller installer = new ResourceInstaller();
Switch.getSwitch().setResourceInstaller(installer);
// START IASRI 4705808 TTT001 -- use BaseCache instead of Hashtable
//int maxEntries = 16000; // FIXME: this maxEntry should be a config
int maxEntries = 8192; // FIXME: this maxEntry should be a config
float loadFactor = 0.75f; // FIXME: this loadFactor should be a config
// for now, let's get it from system prop
try {
String mEnlistDelists
= System.getProperty("ALLOW_MULTIPLE_ENLISTS_DELISTS");
if ("true".equals(mEnlistDelists)) {
multipleEnlistDelists = true;
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: multiple enlists, delists are enabled");
}
String maxEntriesValue
= System.getProperty("JTA_RESOURCE_TABLE_MAX_ENTRIES");
if (maxEntriesValue != null) {
int temp = Integer.parseInt(maxEntriesValue);
if (temp > 0) {
maxEntries = temp;
}
}
String loadFactorValue
= System.getProperty("JTA_RESOURCE_TABLE_DEFAULT_LOAD_FACTOR");
if (loadFactorValue != null) {
float f = Float.parseFloat(loadFactorValue);
if (f > 0) {
loadFactor = f;
}
}
} catch (Exception ex) {
// ignore
}
Properties cacheProps = null;
resourceTable = new BaseCache();
((BaseCache)resourceTable).init(maxEntries, loadFactor, cacheProps);
// END IASRI 4705808 TTT001
invMgr = Switch.getSwitch().getInvocationManager();
if (invMgr == null) { // Stand Alone Clients
invMgr = new InvocationManagerImpl();
// Switch.getSwitch().setInvocationManager(invMgr);
// createJTSTransactionManager();
}
// START IASRI 4662745
ServerContext sCtx = ApplicationServer.getServerContext();
// running on the server side
if (sCtx != null) {
ConfigContext ctx = sCtx.getConfigContext();
TransactionService txnService = null;
try {
txnService = ServerBeansFactory.getTransactionServiceBean(ctx);
transactionTimeout = Integer.parseInt(txnService.getTimeoutInSeconds());
ElementProperty[] eprops = txnService.getElementProperty();
for (int index = 0; index < eprops.length; index++) {
if ("use-last-agent-optimization".equals(eprops[index].getName())) {
if ("false".equals(eprops[index].getValue())) {
useLAO = false;
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: LAO is disabled");
}
}
}
} catch(ConfigException e) {
throw new RuntimeException(sm.getString("enterprise_distributedtx.config_excep",e));
} catch (NumberFormatException ex) {
}
}
// ENF OF BUG 4665539
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: Tx Timeout = " + transactionTimeout);
// monitor and administration
activeTransactions = new Vector();
statusMap = new Hashtable();
for (int i=0; i<JTAStatus.length; i++) {
statusMap.put(new Integer(JTAStatus[i]),STATUS[i]);
}
// END IASRI 4662745
// START IASRI 4705808 TTT004 -- monitor resource table stats
try {
String doStats
= System.getProperty("MONITOR_JTA_RESOURCE_TABLE_STATISTICS");
if (Boolean.getBoolean(doStats)) {
registerStatisticMonitorTask();
}
} catch (Exception ex) {
// ignore
}
// END IASRI 4705808 TTT004
}
public static J2EETransactionManager createTransactionManager() {
ServerConfiguration sc = ServerConfiguration.getConfiguration();
String txOpt = sc.getProperty(TX_OPT);
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: Tx Opt = " + txOpt);
J2EETransactionManager j2eeTM;
if ( txOpt != null && txOpt.equals("false") )
j2eeTM = new J2EETransactionManagerImpl();
else {
j2eeTM = new J2EETransactionManagerOpt();
J2EETransaction.j2eeTM = (J2EETransactionManagerOpt)j2eeTM;
}
return j2eeTM;
}
public static void createJTSTransactionManager() {
// It is assumed that transaction manager is already created
// and is available in switch.
J2EETransactionManagerImpl impl = (J2EETransactionManagerImpl)
Switch.getSwitch().getTransactionManager();
if (impl.tm != null)
return;
impl.tm = TransactionManagerImpl.getTransactionManagerImpl();
}
private static void print(String s) {
/** IASRI 4664284
System.err.println(s);
**/
// START OF IASRI 4664284
_logger.log(Level.FINE,s);
// END OF IASRI 4664284
}
/****************************************************************************/
/** Implementations of J2EETransactionManager APIs **************************/
/****************************************************************************/
/**
* Return true if a "null transaction context" was received
* from the client. See EJB2.0 spec section 19.6.2.1.
* A null tx context has no Coordinator objref. It indicates
* that the client had an active
* tx but the client container did not support tx interop.
*/
public boolean isNullTransaction()
{
try {
return com.sun.jts.pi.InterceptorImpl.isTxCtxtNull();
} catch ( Exception ex ) {
// sometimes JTS throws an EmptyStackException if isTxCtxtNull
// is called outside of any CORBA invocation.
return false;
}
}
public void recover(XAResource[] resourceList) {
int size = resourceList.length;
Vector v = new Vector();
for (int i=0; i<size; i++) {
v.addElement(resourceList[i]);
}
((TransactionManagerImpl)tm).recover(v.elements());
}
public boolean enlistResource(Transaction tran, ResourceHandle h)
throws RollbackException,
IllegalStateException, SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: enlistResource");
if (h.isTransactional() && (!h.isEnlisted() || !h.isShareable() || multipleEnlistDelists)) {
XAResource res = h.getXAResource();
boolean result = tran.enlistResource(res);
if (!h.isEnlisted())
poolmgr.resourceEnlisted(tran, h);
return result;
} else {
return true;
}
}
public boolean enlistLAOResource(Transaction tran, ResourceHandle h)
throws RollbackException,
IllegalStateException, SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: enlistLAOResource");
if (h.isTransactional()) {
XAResource res = h.getXAResource();
boolean result = tran.enlistResource(res);
return result;
} else {
return true;
}
}
public void enlistComponentResources() throws RemoteException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: enlistComponentResources");
ComponentInvocation inv = invMgr.getCurrentInvocation();
if (inv == null)
return;
try {
Transaction tran = getTransaction();
inv.setTransaction(tran);
enlistComponentResources(inv);
} catch (InvocationException ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
//START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_enlist" ,ex);
//END OF IASRI 4664284
throw new RemoteException(ex.getMessage(), ex.getNestedException());
} catch (Exception ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
//START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_enlist" ,ex);
//END OF IASRI 4664284
throw new RemoteException(ex.getMessage(), ex);
}
}
public void delistComponentResources(boolean suspend)
throws RemoteException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: delistComponentResources");
ComponentInvocation inv = invMgr.getCurrentInvocation();
// BEGIN IASRI# 4646060
if (inv == null) {
return;
}
// END IASRI# 4646060
try {
delistComponentResources(inv, suspend);
} catch (InvocationException ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
// START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_delist",ex);
// END OF IASRI 4664284
throw new RemoteException("", ex.getNestedException());
} catch (Exception ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
// START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_delist",ex);
// END OF IASRI 4664284
throw new RemoteException("", ex);
}
}
public void registerComponentResource(ResourceHandle h) {
ComponentInvocation inv = invMgr.getCurrentInvocation();
if (inv != null) {
Object instance = inv.getInstance();
if (instance == null) return;
h.setComponentInstance(instance);
List l = getResourceList(instance, inv);
l.add(h);
}
}
public void unregisterComponentResource(ResourceHandle h) {
Object instance = h.getComponentInstance();
if (instance == null) return;
h.setComponentInstance(null);
ComponentInvocation inv = invMgr.getCurrentInvocation();
List l = null;
if (inv != null)
l = getExistingResourceList(instance, inv);
else
l = getExistingResourceList(instance);
if (l != null) {
l.remove(h);
}
}
private void handleResourceError(ResourceHandle h,
Exception ex, Transaction tran,
ComponentInvocation inv) {
if (_logger.isLoggable(Level.FINE)) {
if (h.isTransactional()) {
_logger.log(Level.FINE,"TM: HandleResourceError " +
h.getXAResource() +
"," + ex);
}
}
/** IASRI 4658504
// unregister resource
Object instance = inv.getInstance();
if (instance == null) return;
Vector v = getResourceList(instance);
v.removeElement(h);
** IASRI 4658504 **/
try {
if (tran != null && h.isTransactional() && h.isEnlisted() ) {
tran.delistResource(h.getXAResource(), XAResource.TMSUCCESS);
}
} catch (Exception ex2) {
// ignore
}
if (ex instanceof RollbackException) {
// transaction marked as rollback
return;
} else if (ex instanceof IllegalStateException) {
// transaction aborted by time out
// close resource
try {
h.getResourceAllocator().closeUserConnection(h);
} catch (Exception ex2) {
//Log.err.println(ex2);
}
} else {
// destroy resource. RM Error.
try {
h.getResourceAllocator().destroyResource(h);
} catch (Exception ex2) {
//Log.err.println(ex2);
}
}
}
private void enlistComponentResources(ComponentInvocation inv)
throws InvocationException {
// Exception ex1 = null;
try {
Transaction tran = inv.getTransaction();
if (isTransactionActive(tran)) {
/** IASRI 4658504
Vector v = getResourceList(inv.getInstance());
Enumeration e = v.elements();
while (e.hasMoreElements()) {
ResourceHandle h = (ResourceHandle) e.nextElement();
try {
enlistResource(tran, h);
} catch (Exception ex) {
handleResourceError(h, ex, tran, inv);
}
}
** IASRI 4658504 **/
List l = getExistingResourceList(inv.getInstance(), inv);
if (l == null || l.size() == 0) return;
Iterator it = l.iterator();
// END IASRI 4705808 TTT002
while(it.hasNext()) {
ResourceHandle h = (ResourceHandle) it.next();
try{
enlistResource(tran,h);
}catch(Exception ex){
// ex1 = ex;
it.remove();
handleResourceError(h,ex,tran,inv);
}
}
//END OF IASRI 4658504
}
} catch (Exception ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
// START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_enlist",ex);
// END OF IASRI 4664284
//throw new InvocationException(ex);
}
/**
if (ex1 != null) {
InvocationException ivx = new InvocationException(ex1.getMessage());
ivx.initCause(ex1);
throw ivx;
}
**/
}
private void delistComponentResources(ComponentInvocation inv,
boolean suspend)
throws InvocationException {
try {
Transaction tran = inv.getTransaction();
if (isTransactionActive(tran)) {
/** IASRI 4658504
Vector v = getResourceList(inv.getInstance());
Enumeration e = v.elements();
int flag = XAResource.TMSUCCESS;
if (suspend) flag = XAResource.TMSUSPEND;
while (e.hasMoreElements()) {
ResourceHandle h = (ResourceHandle) e.nextElement();
try {
delistResource(tran, h, flag);
} catch (IllegalStateException ex) {
// ignore error due to tx time out
} catch (Exception ex) {
handleResourceError(h, ex, tran, inv);
}
}
**IASRI 4658504 **/
List l = getExistingResourceList(inv.getInstance(), inv);
if (l == null || l.size() == 0)
return;
Iterator it = l.iterator();
// END IASRI 4705808 TTT002
int flag = XAResource.TMSUCCESS;
if(suspend)flag = XAResource.TMSUSPEND;
while(it.hasNext()){
ResourceHandle h = (ResourceHandle)it.next();
try{
if ( h.isEnlisted() ) {
delistResource(tran,h,flag);
}
} catch (IllegalStateException ex) {
// ignore error due to tx time out
}catch(Exception ex){
it.remove();
handleResourceError(h,ex,tran,inv);
}
}
//END OF IASRI 4658504
}
} catch (Exception ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
// START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.excep_in_delist",ex);
// END OF IASRI 4664284
//throw new InvocationException(ex);
}
}
private boolean isTransactionActive(Transaction tran) {
return (tran != null);
}
public void preInvoke(ComponentInvocation prev)
throws InvocationException {
if ( prev != null && prev.getTransaction() != null &&
prev.isTransactionCompleting() == false) {
// do not worry about delisting previous invocation resources
// if transaction is being completed
delistComponentResources(prev, true); // delist with TMSUSPEND
}
}
public void postInvoke(ComponentInvocation curr, ComponentInvocation prev)
throws InvocationException {
if ( curr != null && curr.getTransaction() != null )
delistComponentResources(curr, false); // delist with TMSUCCESS
if ( prev != null && prev.getTransaction() != null &&
prev.isTransactionCompleting() == false) {
// do not worry about re-enlisting previous invocation resources
// if transaction is being completed
enlistComponentResources(prev);
}
}
public void componentDestroyed(Object instance) {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: componentDestroyed" + instance);
// START IASRI 4705808 TTT002 -- use List instead of Vector
// Mod: remove the bad behavior of adding an empty list then remove it
List l = (List)resourceTable.get(getInstanceKey(instance));
if (l != null && l.size() > 0) {
//START IASRI 4720840
resourceTable.remove(getInstanceKey(instance));
//END IASRI 4720840
Iterator it = l.iterator();
while (it.hasNext()) {
ResourceHandle h = (ResourceHandle) it.next();
try {
h.getResourceAllocator().closeUserConnection(h);
} catch (PoolingException ex) {
/** IASRI 4664284
if (debug) ex.printStackTrace();
**/
// START OF IASRI 4664284
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.WARNING,"enterprise_distributedtx.pooling_excep", ex);
// END OF IASRI 4664284
}
}
l.clear();
//START IASRI 4720840
// resourceTable.remove(getInstanceKey(instance));
//END IASRI 4720840
}
// END IASRI 4705808 TTT002
}
public void ejbDestroyed(ComponentContext context) {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, " ejbDestroyed: " + context);
List l = (List)context.getResourceList();
if (l != null && l.size() > 0) {
Iterator it = l.iterator();
while (it.hasNext()) {
ResourceHandle h = (ResourceHandle) it.next();
try {
h.getResourceAllocator().closeUserConnection(h);
} catch (PoolingException ex) {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.WARNING,"enterprise_distributedtx.pooling_excep", ex);
}
}
l.clear();
}
}
private Object getInstanceKey(Object instance) {
Object key = null;
if (instance instanceof Servlet ||
instance instanceof Filter) {
// Servlet or Filter
if (instance instanceof SingleThreadModel) {
key = instance;
} else {
Vector pair = new Vector(2);
pair.addElement(instance);
pair.addElement(Thread.currentThread());
key = pair;
}
} else {
key = instance;
}
return key;
}
//START IASRI 4720840
public List getExistingResourceList(Object instance) {
if (instance == null)
return null;
Object key = getInstanceKey(instance);
if (key == null)
return null;
return (List) resourceTable.get(key);
}
//END IASRI 4720840
public List getExistingResourceList(Object instance, ComponentInvocation inv) {
if (inv == null)
return null;
List l = null;
if (inv.getInvocationType() == ComponentInvocation.EJB_INVOCATION) {
ComponentContext ctx = inv.context;
if (ctx != null)
l = ctx.getResourceList();
return l;
}
else {
Object key = getInstanceKey(instance);
if (key == null)
return null;
return (List) resourceTable.get(key);
}
}
// START IASRI 4705808 TTT001 -- use BaseCache instead of Hashtable
public List getResourceList(Object instance) {
Object key = getInstanceKey(instance);
List l = (List) resourceTable.get(key);
if (l == null) {
l = new ArrayList(); //FIXME: use an optimum size?
resourceTable.put(key, l);
}
return l;
}
// END IASRI 4705808 TTT002
public List getResourceList(Object instance, ComponentInvocation inv) {
if (inv == null)
return new ArrayList(0);
List l = null;
if (inv.getInvocationType() == ComponentInvocation.EJB_INVOCATION) {
ComponentContext ctx = inv.context;
if (ctx != null)
l = ctx.getResourceList();
else {
l = new ArrayList(0);
}
}
else {
Object key = getInstanceKey(instance);
if (key == null)
return new ArrayList(0);
l = (List) resourceTable.get(key);
if (l == null) {
l = new ArrayList(); //FIXME: use an optimum size?
resourceTable.put(key, l);
}
}
return l;
}
/**
* @param suspend true if the transaction association should
* be suspended rather than ended.
*/
public boolean delistResource(Transaction tran, ResourceHandle h,
int flag)
throws IllegalStateException, SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: delistResource");
if (!h.isShareable() || multipleEnlistDelists) {
if (h.isTransactional() && h.isEnlisted()) {
return tran.delistResource(h.getXAResource(), flag);
} else {
return true;
}
}
return true;
}
public void registerSynchronization(Synchronization sync)
throws IllegalStateException, SystemException
{
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: registerSynchronization");
try {
Transaction tran = getTransaction();
if (tran != null) {
tran.registerSynchronization(sync);
}
} catch (RollbackException ex) {
/** IASRI 4664284
ex.printStackTrace();
ex.printStackTrace(Log.err);
**/
//START OF IASRI 4664284
_logger.log(Level.SEVERE,"enterprise_distributedtx.rollbackexcep_in_regsynch",ex);
//END OF IASRI 4664284
throw new IllegalStateException();
}
}
public void begin(int timeout)
throws NotSupportedException, SystemException {
//START RI PERFIMPROVEMENT
/***
// Just to tell that, use this timeout for the transaction, there is no need
// to synchronized and thus serrialize the activity. Now this is avoided by
// the introduction of two new methods begin(timeout) in TransactionManagerImpl
// and CurrentImpl
// ensure no other thread change the timeout
synchronized(tm) {
tm.setTransactionTimeout(timeout);
tm.begin();
tm.setTransactionTimeout(0);
// START IASRI 4662745
if (monitoringEnabled) {
Transaction tran = tm.getTransaction();
activeTransactions.addElement(tran);
m_transInFlight++;
}
// END IASRI 4662745
}
**/
((TransactionManagerImpl)tm).begin(timeout);
// START IASRI 4662745
if (monitoringEnabled) {
Transaction tran = tm.getTransaction();
activeTransactions.addElement(tran);
m_transInFlight++;
}
// END IASRI 4662745
//END RI PERFIMPROVEMENT
}
public void checkTransactionExport(boolean isLocal) { }
public void checkTransactionImport() { }
private void validateTransactionManager() throws IllegalStateException {
if (tm == null) {
throw new IllegalStateException
(sm.getString("enterprise_distributedtx.transaction_notactive"));
}
}
/****************************************************************************/
/** Implementations of JTA TransactionManager APIs **************************/
/****************************************************************************/
/**
* Create a new transaction and associate it with the current thread.
*
* @exception NotSupportedException Thrown if the thread is already
* associated with a transaction.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public void begin() throws NotSupportedException, SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: begin");
//START RI PERFIMPROVEMENT
/***
// Just to tell that, use this timeout for the transaction, there is no need
// to synchronize and thus serrialize the activity. Now this is avoided by
// the introduction of two new methods begin(timeout) in TransactionManagerImpl
// and CurrentImpl
synchronized(tm) {
// ensure no other thread change the timeout
tm.setTransactionTimeout(transactionTimeout);
tm.begin();
tm.setTransactionTimeout(0);
// START IASRI 4662745
if (monitoringEnabled) {
Transaction tran = tm.getTransaction();
activeTransactions.addElement(tran);
m_transInFlight++;
}
// END IASRI 4662745
}
***/
((TransactionManagerImpl)tm).begin(getEffectiveTimeout());
// START IASRI 4662745
if (monitoringEnabled) {
Transaction tran = tm.getTransaction();
activeTransactions.addElement(tran);
m_transInFlight++;
}
// END IASRI 4662745
// END IASRI PERFIMPROVEMENT
}
/**
* Complete the transaction associated with the current thread. When this
* method completes, the thread becomes associated with no transaction.
*
* @exception RollbackException Thrown to indicate that
* the transaction has been rolled back rather than committed.
*
* @exception HeuristicMixedException Thrown to indicate that a heuristic
* decision was made and that some relevant updates have been committed
* while others have been rolled back.
*
* @exception HeuristicRollbackException Thrown to indicate that a
* heuristic decision was made and that some relevant updates have been
* rolled back.
*
* @exception SecurityException Thrown to indicate that the thread is
* not allowed to commit the transaction.
*
* @exception IllegalStateException Thrown if the current thread is
* not associated with a transaction.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public void commit() throws RollbackException,
HeuristicMixedException, HeuristicRollbackException, SecurityException,
IllegalStateException, SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: commit");
validateTransactionManager();
Object obj = null;
if(monitoringEnabled){
obj = tm.getTransaction();
}
if (invMgr.isInvocationStackEmpty()) {
try{
tm.commit();
if (monitoringEnabled){
monitorTxCompleted(obj, true);
}
}catch(RollbackException e){
if (monitoringEnabled){
monitorTxCompleted(obj, false);
}
throw e;
}catch(HeuristicRollbackException e){
if (monitoringEnabled){
monitorTxCompleted(obj, false);
}
throw e;
}catch(HeuristicMixedException e){
if (monitoringEnabled){
monitorTxCompleted(obj, true);
}
throw e;
}
} else {
ComponentInvocation curr = null;
try {
curr = invMgr.getCurrentInvocation();
if (curr != null)
curr.setTransactionCompeting(true);
tm.commit();
if (monitoringEnabled){
monitorTxCompleted(obj, true);
}
} catch (InvocationException ex) {
assert false;
}catch(RollbackException e){
if (monitoringEnabled){
monitorTxCompleted(obj, false);
}
throw e;
}catch(HeuristicRollbackException e){
if (monitoringEnabled){
monitorTxCompleted(obj, false);
}
throw e;
}catch(HeuristicMixedException e){
if (monitoringEnabled){
monitorTxCompleted(obj, true);
}
throw e;
} finally {
if (curr != null) {
curr.setTransactionCompeting(false);
}
}
}
}
/**
* Obtain the status of the transaction associated with the current thread.
*
* @return The transaction status. If no transaction is associated with
* the current thread, this method returns the Status.NoTransaction
* value.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public int getStatus() throws SystemException {
if (tm != null) {
return tm.getStatus();
} else {
return javax.transaction.Status.STATUS_NO_TRANSACTION;
}
}
/**
* Get the transaction object that represents the transaction
* context of the calling thread
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public Transaction getTransaction() throws SystemException {
if (tm == null) {
return null;
} else {
return tm.getTransaction();
}
}
/**
* Resume the transaction context association of the calling thread
* with the transaction represented by the supplied Transaction object.
* When this method returns, the calling thread is associated with the
* transaction context specified.
*
* @exception InvalidTransactionException Thrown if the parameter
* transaction object contains an invalid transaction
*
* @exception IllegalStateException Thrown if the thread is already
* associated with another transaction.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*/
public void resume(Transaction tobj)
throws InvalidTransactionException, IllegalStateException,
SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: resume");
tm.resume(tobj);
}
/**
* Roll back the transaction associated with the current thread. When this
* method completes, the thread becomes associated with no transaction.
*
* @exception SecurityException Thrown to indicate that the thread is
* not allowed to roll back the transaction.
*
* @exception IllegalStateException Thrown if the current thread is
* not associated with a transaction.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public void rollback() throws IllegalStateException, SecurityException,
SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: rollback");
validateTransactionManager();
// START IASRI 4662745
Object obj = null;
if (monitoringEnabled){
obj = tm.getTransaction();
}
if (invMgr.isInvocationStackEmpty()) {
tm.rollback();
} else {
ComponentInvocation curr = null;
try {
curr = invMgr.getCurrentInvocation();
if (curr != null)
curr.setTransactionCompeting(true);
tm.rollback();
} catch (InvocationException ex) {
assert false;
} finally {
if (curr != null) {
curr.setTransactionCompeting(false);
}
}
}
if (monitoringEnabled){
monitorTxCompleted(obj, false);
}
// END IASRI 4662745
}
/**
* Modify the transaction associated with the current thread such that
* the only possible outcome of the transaction is to roll back the
* transaction.
*
* @exception IllegalStateException Thrown if the current thread is
* not associated with a transaction.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public void setRollbackOnly()
throws IllegalStateException, SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: setRollbackOnly");
validateTransactionManager();
tm.setRollbackOnly();
}
/**
* Modify the value of the timeout value that is associated with the
* transactions started by the current thread with the begin method.
*
* <p> If an application has not called this method, the transaction
* service uses some default value for the transaction timeout.
*
* @param seconds The value of the timeout in seconds. If the value
* is zero, the transaction service restores the default value.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public void setTransactionTimeout(int seconds) throws SystemException {
if (seconds < 0) seconds = 0;
txnTmout.set(seconds);
// transactionTimeout = seconds;
}
public void cleanTxnTimeout() {
txnTmout.set(null);
}
int getEffectiveTimeout() {
Integer tmout = txnTmout.get();
if (tmout == null) {
return transactionTimeout;
}
else {
return tmout;
}
}
public void setDefaultTransactionTimeout(int seconds) {
if (seconds < 0) seconds = 0;
transactionTimeout = seconds;
}
/**
* Suspend the transaction currently associated with the calling
* thread and return a Transaction object that represents the
* transaction context being suspended. If the calling thread is
* not associated with a transaction, the method returns a null
* object reference. When this method returns, the calling thread
* is associated with no transaction.
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
* @exception SystemException Thrown if the transaction manager
* encounters an unexpected error condition
*
*/
public Transaction suspend() throws SystemException {
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE,"TM: suspend");
validateTransactionManager();
return tm.suspend();
}
// START IASRI 4662745
/*
* This method returns the details of the Currently Active Transactions
* Called by Admin Framework when transaction monitoring is enabled
* @returns ArrayList of TransactionAdminBean
* @see TransactionAdminBean
*/
public ArrayList getActiveTransactions() {
ArrayList tranBeans = new ArrayList();
Vector active = (Vector)activeTransactions.clone(); // get the clone of the active transactions
for(int i=0;i<active.size();i++){
try{
Transaction tran = (Transaction)active.elementAt(i);
String id="unknown";
long startTime = 0;
long elapsedTime = 0;
String status = "unknown";
String componentName = "unknown";
ArrayList<String> resourceNames = null;
if(tran instanceof com.sun.jts.jta.TransactionImpl){
id=((com.sun.jts.jta.TransactionImpl)tran).getTransactionId();
startTime = ((com.sun.jts.jta.TransactionImpl)tran).getStartTime();
}else if(tran instanceof J2EETransaction){
J2EETransaction tran1 = (J2EETransaction)tran;
id=tran1.getTransactionId();
startTime = tran1.getStartTime();
componentName = tran1.getComponentName();
resourceNames = tran1.getResourceNames();
}
elapsedTime = System.currentTimeMillis()-startTime;
status = (String)statusMap.get(new Integer(tran.getStatus()));
TransactionAdminBean tBean = new TransactionAdminBean(tran,id,status,elapsedTime,
componentName, resourceNames);
tranBeans.add(tBean);
}catch(Exception ex){
//LOG !!!
}
}
return tranBeans;
}
/*
* Called by Admin Framework when transaction monitoring is enabled
*/
public void forceRollback(Transaction tran) throws IllegalStateException, SystemException{
if (tran != null){
tran.setRollbackOnly();
}
}
/* Returned Number of transactions commited since the time monitoring
* was enabeld
* Called by Admin Framework when transaction monitoring is enabled
*/
public int getNumberOfTransactionsCommitted(){
return m_transCommitted;
}
/* Returned Number of transactions Rolledback since the time monitoring
* was enabeld
* Called by Admin Framework when transaction monitoring is enabled
*/
public int getNumberOfTransactionsRolledBack(){
return m_transRolledback;
}
/* Returned Number of transactions Active
* Called by Admin Framework when transaction monitoring is enabled
*/
public int getNumberOfActiveTransactions(){
return m_transInFlight;
}
/*
* Called by Admin Framework to freeze the transactions.
*/
public synchronized void freeze(){
if(com.sun.jts.CosTransactions.AdminUtil.isFrozenAll()){
//multiple freezes will hang this thread, therefore just return
return;
}
com.sun.jts.CosTransactions.AdminUtil.freezeAll();
}
/*
* Called by Admin Framework to freeze the transactions. These undoes the work done by the freeze.
*/
public synchronized void unfreeze(){
if(com.sun.jts.CosTransactions.AdminUtil.isFrozenAll()){
com.sun.jts.CosTransactions.AdminUtil.unfreezeAll();
}
}
/*
* Called by Admin Framework.
*/
public synchronized boolean isFrozen(){
return com.sun.jts.CosTransactions.AdminUtil.isFrozenAll();
}
/**
* Recreate a transaction based on the Xid. This call causes the calling
* thread to be associated with the specified transaction. <p>
* This is used by importing transactions via the Connector contract.
*
* @param xid the Xid object representing a transaction.
*/
public void recreate(Xid xid, long timeout) throws WorkException {
((TransactionManagerImpl) tm).recreate(xid, timeout);
}
/**
* Release a transaction. This call causes the calling thread to be
* dissociated from the specified transaction. <p>
* This is used by importing transactions via the Connector contract.
*
* @param xid the Xid object representing a transaction.
*/
public void release(Xid xid) throws WorkException {
((TransactionManagerImpl) tm).release(xid);
}
/**
* Provides a handle to a <code>XATerminator</code> instance. The
* <code>XATerminator</code> instance could be used by a resource adapter
* to flow-in transaction completion and crash recovery calls from an EIS.
* <p>
* This is used by importing transactions via the Connector contract.
*
* @return a <code>XATerminator</code> instance.
*/
public XATerminator getXATerminator() {
return ((TransactionManagerImpl) tm).getXATerminator();
}
protected void monitorTxCompleted(Object tran, boolean committed){
if(tran==null || !activeTransactions.remove(tran)){
// WARN !!!
return;
}
if(committed){
m_transCommitted++;
}else{
m_transRolledback++;
}
m_transInFlight--;
}
public void setMonitoringEnabled(boolean enabled){
monitoringEnabled = enabled;
//reset the variables
m_transCommitted = 0;
m_transRolledback = 0;
m_transInFlight = 0;
activeTransactions.removeAllElements();
}
static {
com.sun.enterprise.admin.event.AdminEventListenerRegistry.addEventListener(JTSEvent.eventType, new JTSConfigChangeEventListener());
}
// END IASRI 4662745
// overridden in the Opt
public boolean isTimedOut() {
return false;
}
// START IASRI 4705808 TTT004 -- monitor resource table stats
// Mods: Adding method for statistic dumps using TimerTask
private void registerStatisticMonitorTask() {
TimerTask task = new StatisticMonitorTask();
Timer timer = Switch.getSwitch().getTimer();
// for now, get monitoring interval from system prop
int statInterval = 2 * 60 * 1000;
try {
String interval
= System.getProperty("MONITOR_JTA_RESOURCE_TABLE_SECONDS");
int temp = Integer.parseInt(interval);
if (temp > 0) {
statInterval = temp;
}
} catch (Exception ex) {
// ignore
}
timer.scheduleAtFixedRate(task, 0, statInterval);
}
// Mods: Adding TimerTask class for statistic dumps
class StatisticMonitorTask extends TimerTask {
public void run() {
if (resourceTable != null) {
Map stats = resourceTable.getStats();
Iterator it = stats.keySet().iterator();
String key;
//FIXME: use logger instead of System.out
System.out.println("********** J2EETransactionManagerImpl.resourceTable stats *****");
while (it.hasNext()) {
key = (String)it.next();
System.out.println(key + ": " + stats.get(key).toString());
}
}
}
}
// END IASRI 4705808 TTT004
}
|
