com.atomikos.persistence.imp.StateRecoveryManagerImp Maven / Gradle / Ivy
/**
* Copyright (C) 2000-2023 Atomikos
*
* LICENSE CONDITIONS
*
* See http://www.atomikos.com/Main/WhichLicenseApplies for details.
*/
package com.atomikos.persistence.imp;
import com.atomikos.finitestates.FSMEnterEvent;
import com.atomikos.finitestates.FSMEnterListener;
import com.atomikos.persistence.RecoverableCoordinator;
import com.atomikos.persistence.StateRecoveryManager;
import com.atomikos.recovery.LogException;
import com.atomikos.recovery.OltpLog;
import com.atomikos.recovery.PendingTransactionRecord;
import com.atomikos.recovery.TxState;
import com.atomikos.util.Assert;
/**
* Default implementation of a state recovery manager.
*/
public class StateRecoveryManagerImp implements StateRecoveryManager, FSMEnterListener
{
/**
* @see StateRecoveryManager
*/
public void register(RecoverableCoordinator staterecoverable) {
Assert.notNull("illegal attempt to register null staterecoverable", staterecoverable);
TxState[] states = TxState.values();
for (TxState txState : states) {
if (txState.isRecoverableState()) {
staterecoverable.addFSMEnterListener(this, txState);
}
}
}
/**
* @see FSMPreEnterListener
*/
public void preEnter(FSMEnterEvent event) throws IllegalStateException {
TxState state = event.getState();
RecoverableCoordinator source = (RecoverableCoordinator) event.getSource();
PendingTransactionRecord pendingTransactionRecord = source.getPendingTransactionRecord(state);
if (pendingTransactionRecord != null) {
// null images are not logged as per the Recoverable contract
try {
oltpLog.write(pendingTransactionRecord);
} catch (Exception le) {
throw new IllegalStateException("could not flush state image " + le.getMessage() + " " + le.getClass().getName(), le);
}
}
}
/**
* @see StateRecoveryManager
*/
public void close() throws LogException {
oltpLog.close();
}
private OltpLog oltpLog;
public void setOltpLog(OltpLog oltpLog) {
this.oltpLog = oltpLog;
}
@Override
public void entered(FSMEnterEvent e) {}
}