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Micro Distribution of the Payara Project for IBM JDK
/*
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*
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* and Distribution License("CDDL") (collectively, the "License"). You
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*
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// Portions Copyright [2016] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.transaction;
import java.util.*;
import java.util.logging.*;
import javax.transaction.*;
import javax.transaction.xa.*;
import javax.persistence.EntityManagerFactory;
import com.sun.enterprise.util.Utility;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.enterprise.transaction.api.JavaEETransaction;
import com.sun.enterprise.transaction.api.SimpleResource;
import com.sun.enterprise.transaction.api.JavaEETransactionManager;
import com.sun.enterprise.transaction.spi.TransactionalResource;
import com.sun.enterprise.transaction.spi.TransactionInternal;
import com.sun.logging.LogDomains;
/**
* This class implements the JTA Transaction API for the J2EE RI.
* It is a wrapper over the JTS Transaction object that provides optimized local
* transaction support when a transaction uses zero/one non-XA resource,
* and delegates to JTS otherwise.
* This object can be in two states: local tx (jtsTx==null) or global (JTS) tx.
* If jtsTx!=null, all calls are delegated to jtsTx.
*
* Time out capability is added to the local transactions. This class extends the TimerTask.
* When the transaction needs to be timedout, this schedules with the timer. At the commit
* and rollback time, task will be cancelled. If the transaction is timedout, run() method
* will be called and transaction will be marked for rollback.
*/
public final class JavaEETransactionImpl extends TimerTask implements
JavaEETransaction {
static Logger _logger = LogDomains.getLogger(JavaEETransactionImpl.class, LogDomains.JTA_LOGGER);
// Sting Manager for Localization
private static StringManager sm = StringManager.getManager(JavaEETransactionImpl.class);
JavaEETransactionManager javaEETM;
// Local Tx ids are just numbers: they dont need to be unique across
// processes or across multiple activations of this server process.
private static long txIdCounter = 1;
// Fall back to the old (wrong) behavior for the case when setRollbackOnly
// was called before XA transaction started
private static boolean DISABLE_STATUS_CHECK_ON_SWITCH_TO_XA =
Boolean.getBoolean("com.sun.jts.disable_status_check_on_switch_to_xa");
private long txId;
private JavaEEXid xid;
private TransactionInternal jtsTx;
private TransactionalResource nonXAResource;
private TransactionalResource laoResource;
private int localTxStatus;
private Vector syncs = new Vector();
private Vector interposedSyncs = new Vector();
private boolean commitStarted = false;
// START 4662745
private long startTime;
// END 4662745
// START: local transaction timeout
private boolean timedOut = false;
private boolean isTimerTask = false;
private int timeout = 0;
// END: local transaction timeout
private boolean imported = false;
private HashMap resourceTable;
private HashMap userResourceMap;
//This cache contains the EntityContexts in this Tx
private Object activeTxCache;
// SimpleResource mapping for EMs with TX persistent context type
private Map txEntityManagerMap;
// SimpleResource mapping for EMs with EXTENDED persistence context type
private Map extendedEntityManagerMap;
private String componentName = null;
private ArrayList resourceNames = null;
// tx-specific ejb container info associated with this tx
private Object containerData = null;
static private boolean isTimerInitialized = false;
static private Timer timer = null;
static private long timerTasksScheduled = 0; // Global counter
static synchronized private void initializeTimer() {
if (isTimerInitialized)
return;
timer = new Timer("JTA TX Timer",true); // daemon
isTimerInitialized = true;
}
JavaEETransactionImpl(JavaEETransactionManager javaEETM) {
this.javaEETM = javaEETM;
this.txId = getNewTxId();
this.xid = new JavaEEXid(txId);
this.resourceTable = new HashMap();
localTxStatus = Status.STATUS_ACTIVE;
startTime=System.currentTimeMillis();
if (_logger != null && _logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE,"--Created new JavaEETransactionImpl, txId = "+txId);
}
}
// START: local transaction timeout
JavaEETransactionImpl(int timeout, JavaEETransactionManager javaEETM) {
this(javaEETM);
if (!isTimerInitialized)
initializeTimer();
timer.schedule(this,timeout * 1000L);
timerTasksScheduled++;
isTimerTask = true;
this.timeout = timeout;
}
// END: local transaction timeout
JavaEETransactionImpl(TransactionInternal jtsTx, JavaEETransactionManager javaEETM) {
this(javaEETM);
this.jtsTx = jtsTx;
imported = true;
}
// START: local transaction timeout
// TimerTask run() method implementation
public void run() {
timedOut = true;
try {
setRollbackOnly();
} catch (Exception e) {
_logger.log(Level.WARNING, "enterprise_distributedtx.some_excep", e);
}
}
public Object getContainerData() {
return containerData;
}
public void setContainerData(Object data) {
containerData = data;
}
boolean isAssociatedTimeout() {
return isTimerTask;
}
// Cancels the timertask and returns the timeout
public int cancelTimerTask() {
cancel();
int mod = javaEETM.getPurgeCancelledTtransactionsAfter();
if (mod > 0 && timerTasksScheduled % mod == 0) {
int purged = timer.purge();
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Purged " + purged + " timer tasks from canceled queue");
}
}
return timeout;
}
public boolean isTimedOut() {
return timedOut;
}
// END: local transaction timeout
private static synchronized long getNewTxId() {
long newTxId = txIdCounter++;
return newTxId;
}
public boolean equals(Object other) {
if ( other == this )
return true;
if ( other instanceof JavaEETransactionImpl ) {
JavaEETransactionImpl othertx = (JavaEETransactionImpl)other;
return ( txId == othertx.txId );
}
return false;
}
public int hashCode() {
return (int)txId;
}
Xid getLocalXid() {
return xid;
}
public TransactionalResource getNonXAResource() {
return nonXAResource;
}
void setNonXAResource(TransactionalResource h) {
nonXAResource = h;
}
public TransactionalResource getLAOResource() {
return laoResource;
}
public void setLAOResource(TransactionalResource h) {
laoResource = h;
}
boolean isImportedTransaction() {
return imported;
}
synchronized void putUserResource(Object key, Object value) {
if (userResourceMap == null)
userResourceMap = new HashMap();
userResourceMap.put(key, value);
}
synchronized Object getUserResource(Object key) {
if (userResourceMap == null)
return null;
return userResourceMap.get(key);
}
void registerInterposedSynchronization(Synchronization sync)
throws RollbackException,
SystemException {
interposedSyncs.add(sync);
if (jtsTx != null)
jtsTx.registerInterposedSynchronization(sync);
}
void setComponentName(String componentName) {
this.componentName = componentName;
}
String getComponentName() {
return componentName;
}
synchronized void addResourceName(String resourceName) {
if (resourceNames == null)
resourceNames = new ArrayList();
if( !resourceNames.contains(resourceName) ) {
resourceNames.add(resourceName);
}
}
synchronized ArrayList getResourceNames() {
return resourceNames;
}
public void addTxEntityManagerMapping(EntityManagerFactory emf,
SimpleResource em) {
getTxEntityManagerMap().put(emf, em);
}
public SimpleResource getTxEntityManagerResource(EntityManagerFactory emf) {
return getTxEntityManagerMap().get(emf);
}
private Map
getTxEntityManagerMap() {
if( txEntityManagerMap == null ) {
txEntityManagerMap =
new HashMap();
}
return txEntityManagerMap;
}
protected void onTxCompletion(boolean status) {
if( txEntityManagerMap == null ) {
return;
}
for (Map.Entry entry :
getTxEntityManagerMap().entrySet()) {
SimpleResource em = entry.getValue();
if (em.isOpen()) {
try {
em.close();
} catch (Throwable th) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Exception while closing em.", th);
}
}
}
}
}
public void addExtendedEntityManagerMapping(EntityManagerFactory emf,
SimpleResource em) {
getExtendedEntityManagerMap().put(emf, em);
}
public void removeExtendedEntityManagerMapping(EntityManagerFactory emf) {
getExtendedEntityManagerMap().remove(emf);
}
public SimpleResource getExtendedEntityManagerResource(EntityManagerFactory emf) {
return getExtendedEntityManagerMap().get(emf);
}
private Map
getExtendedEntityManagerMap() {
if( extendedEntityManagerMap == null ) {
extendedEntityManagerMap =
new HashMap();
}
return extendedEntityManagerMap;
}
public boolean isLocalTx() {
return (jtsTx==null);
}
void setJTSTx(TransactionInternal jtsTx) throws RollbackException, SystemException {
// Remember the status from this transaction
boolean marked_for_rollback = isRollbackOnly();
this.jtsTx = jtsTx;
if ( !commitStarted ) {
// register syncs
for ( int i=0; i© 2015 - 2024 Weber Informatics LLC | Privacy Policy