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com.atomikos.icatch.imp.CompositeTransactionImp Maven / Gradle / Ivy
/**
* Copyright (C) 2000-2020 Atomikos
*
* LICENSE CONDITIONS
*
* See http://www.atomikos.com/Main/WhichLicenseApplies for details.
*/
package com.atomikos.icatch.imp;
import java.util.Map;
import java.util.Stack;
import com.atomikos.finitestates.FSMEnterEvent;
import com.atomikos.finitestates.FSMEnterListener;
import com.atomikos.icatch.CompositeCoordinator;
import com.atomikos.icatch.CompositeTransaction;
import com.atomikos.icatch.Extent;
import com.atomikos.icatch.HeurHazardException;
import com.atomikos.icatch.HeurMixedException;
import com.atomikos.icatch.HeurRollbackException;
import com.atomikos.icatch.Participant;
import com.atomikos.icatch.RecoveryCoordinator;
import com.atomikos.icatch.RollbackException;
import com.atomikos.icatch.SubTxAwareParticipant;
import com.atomikos.icatch.Synchronization;
import com.atomikos.icatch.SysException;
import com.atomikos.icatch.config.Configuration;
import com.atomikos.logging.Logger;
import com.atomikos.logging.LoggerFactory;
import com.atomikos.recovery.TxState;
/**
* A complete composite transaction implementation for use in the local VM.
*/
class CompositeTransactionImp extends AbstractCompositeTransaction implements FSMEnterListener
{
private static final long serialVersionUID = 975317723773209940L;
private static final Logger LOGGER = LoggerFactory.createLogger(CompositeTransactionImp.class);
private CoordinatorImp coordinator = null;
private TransactionServiceImp txservice;
private Extent extent = null;
protected boolean noLocalAncestors;
private TransactionStateHandler stateHandler;
/**
* This constructor is kept for compatibility with the test classes.
*/
CompositeTransactionImp ( Stack lineage , String tid , boolean serial ,
CoordinatorImp coordinator )
{
this ( null , lineage , tid , serial , coordinator );
}
/**
* Constructor.
*
* @param txservice
* The Transaction Service this is for.
* @param lineage
* The ancestor information.
* @param tid
* The identifier for this one.
* @param serial
* If true, no parallel calls allowed.
* @param coordinator
* The coordinator to use.
* @exception IllegalStateException
* If coordinator no longer activatable.
*/
CompositeTransactionImp ( TransactionServiceImp txservice ,
Stack lineage , String tid , boolean serial ,
CoordinatorImp coordinator ) throws IllegalStateException
{
super ( tid , lineage , serial );
this.coordinator = coordinator;
this.txservice = txservice;
this.extent = null;
this.noLocalAncestors = true;
this.stateHandler = new TxActiveStateHandler ( this );
coordinator.addFSMEnterListener ( this, TxState.TERMINATED );
}
synchronized void localSetTransactionStateHandler ( TransactionStateHandler handler )
{
stateHandler = handler;
}
synchronized void localTestAndSetTransactionStateHandler ( TransactionStateHandler expected , TransactionStateHandler newHandler )
{
if ( stateHandler != expected ) throw new IllegalStateException ( "State is no longer " + expected.getState() + " but " + newHandler.getState() );
localSetTransactionStateHandler( newHandler );
}
synchronized TransactionStateHandler localGetTransactionStateHandler()
{
return stateHandler;
}
boolean isLocalRoot ()
{
return noLocalAncestors;
}
TransactionServiceImp getTransactionService ()
{
return txservice;
}
CoordinatorImp getCoordinatorImp ()
{
return coordinator;
}
public synchronized void setSerial () throws IllegalStateException,
SysException
{
if ( !isRoot () ) throw new IllegalStateException ( "Not a root tx." );
serial_ = true;
}
/**
* @see TransactionControl.
*/
public CompositeTransaction createSubTransaction () throws SysException,
IllegalStateException
{
CompositeTransaction ret = localGetTransactionStateHandler().createSubTransaction ();
if(LOGGER.isDebugEnabled()){
LOGGER.logDebug("createSubTransaction(): created new SUBTRANSACTION "
+ ret.getTid () + " for existing transaction " + getTid () + " with coordinatorId " + ret.getCompositeCoordinator().getCoordinatorId());
}
return ret;
}
/**
* @see CompositeTransaction
*/
public RecoveryCoordinator addParticipant ( Participant participant )
throws SysException, java.lang.IllegalStateException
{
RecoveryCoordinator ret = localGetTransactionStateHandler().addParticipant ( participant );
return ret;
}
/**
* @see CompositeTransaction
*/
public void registerSynchronization ( Synchronization sync ) throws // RollbackException,
IllegalStateException, UnsupportedOperationException, SysException
{
localGetTransactionStateHandler().registerSynchronization ( sync );
if(LOGGER.isDebugEnabled()){
LOGGER.logDebug("registerSynchronization ( " + sync + " ) for transaction "
+ getTid ());
}
}
/**
* @see CompositeTransaction
*/
public void addSubTxAwareParticipant ( SubTxAwareParticipant subtxaware )
throws SysException, java.lang.IllegalStateException
{
localGetTransactionStateHandler().addSubTxAwareParticipant ( subtxaware );
}
/**
* @see TransactionControl.
*/
protected void doRollback () throws java.lang.IllegalStateException,
SysException
{
localGetTransactionStateHandler().rollbackWithStateCheck ();
if(LOGGER.isDebugEnabled()){
LOGGER.logDebug("rollback() done of transaction " + getTid ());
}
}
/**
* @see CompositeTransaction.
*/
public CompositeCoordinator getCompositeCoordinator () throws SysException
{
return coordinator;
}
/**
* @see CompositeTransaction.
*/
public boolean isLocal ()
{
return true;
}
/**
* Successfully end the composite transaction. Marks it as inactive. Called
* by Terminator implementation only! NOTE: this does NOT commit the
* participants, but rather only marks the (sub)transaction as being
* ELIGIBLE FOR PREPARE IN 2PC.
*
* @exception IllegalStateException
* If no longer active.
* @exception SysException
* Unexpected failure.
*/
protected void doCommit () throws SysException,
java.lang.IllegalStateException, RollbackException
{
localGetTransactionStateHandler().commit ();
if(LOGGER.isDebugEnabled()){
LOGGER.logDebug("commit() done (by application) of transaction " + getTid ());
}
}
public long getTimeout ()
{
return coordinator.getTimeOut ();
}
public synchronized Extent getExtent() {
if (extent == null) {
if (isRoot()) {
extent = new Extent();
} else {
String parentTransactionId = getLineage().peek().getTid();
extent = new Extent(parentTransactionId);
}
}
return extent;
}
public void setRollbackOnly ()
{
localGetTransactionStateHandler().setRollbackOnly ();
if(LOGGER.isDebugEnabled()){
LOGGER.logDebug("setRollbackOnly() called for transaction " + getTid ());
}
}
/**
* @see com.atomikos.icatch.CompositeTransaction#commit()
*/
public void commit () throws HeurMixedException,
HeurHazardException, SysException, SecurityException,
RollbackException
{
doCommit ();
setSiblingInfoForIncoming1pcRequestFromRemoteClient();
try {
if (isRoot()) {
coordinator.terminate(true);
} else {
coordinator.incLocalSiblingsTerminated();
}
} catch (HeurRollbackException rb) {
throw new RollbackException("Transaction was rolled back", rb);
} catch ( RollbackException rb) {
throw rb;
} catch ( HeurHazardException | HeurMixedException h ) {
//no need to log: coordinator already logs on heuristics
if (throwOnHeuristic()) {
throw h;
}
} catch ( SysException se ) {
throw se;
} catch ( Exception e ) {
throw new SysException (
"Unexpected error: " + e.getMessage (), e );
}
}
private boolean throwOnHeuristic() {
return Configuration.getConfigProperties().getThrowOnHeuristic();
}
private void setSiblingInfoForIncoming1pcRequestFromRemoteClient() {
Map cascadelist = getExtent().getRemoteParticipants ();
coordinator.setGlobalSiblingCount ( coordinator.getLocalSiblingCount () );
coordinator.setCascadeList ( cascadelist );
}
/**
* @see com.atomikos.icatch.CompositeTransaction#rollback()
*/
public void rollback() throws IllegalStateException, SysException
{
doRollback();
try {
if (isRoot()) {
coordinator.terminate(false);
} else {
coordinator.incLocalSiblingsTerminated();
}
} catch ( Exception e ) {
throw new SysException ( "Unexpected error in rollback: " + e.getMessage (), e );
}
}
/**
* @see com.atomikos.finitestates.Stateful.
*/
public TxState getState ()
{
return localGetTransactionStateHandler().getState ();
}
/**
* @see com.atomikos.finitestates.FSMEnterListener#preEnter(com.atomikos.finitestates.FSMEnterEvent)
*/
public void entered ( FSMEnterEvent coordinatorTerminatedEvent )
{
if (getState().isOneOf(TxState.ACTIVE,TxState.MARKED_ABORT )) {
// our coordinator terminated and we did not -> coordinator must have seen a timeout/abort
try {
if (!( stateHandler instanceof TxTerminatedStateHandler ) ) {
// note: check for TxTerminatedStateHandler differentiates regular rollback from timeout/rollback !!!
setRollbackOnly(); // see case 27857: keep tx context for thread on timeout
} else {
rollback();
}
} catch ( Exception e ) {
// ignore but log
LOGGER.logTrace("Ignoring error during event callback",e);
}
}
}
}
