Examples with TransactionContext org.activiti.engine.impl.cfg.TransactionContext used on opensource projects

Example 1 with TransactionContext

use of org.activiti.engine.impl.cfg.TransactionContext in project Activiti by Activiti.

the class EntityManagerSessionImpl method getEntityManager.

public EntityManager getEntityManager() {
    if (entityManager == null) {
        entityManager = getEntityManagerFactory().createEntityManager();
        if (handleTransactions) {
            // Add transaction listeners, if transactions should be handled
            TransactionListener jpaTransactionCommitListener = new TransactionListener() {

                public void execute(CommandContext commandContext) {
                    if (isTransactionActive()) {
                        entityManager.getTransaction().commit();
                    }
                }
            };
            TransactionListener jpaTransactionRollbackListener = new TransactionListener() {

                public void execute(CommandContext commandContext) {
                    if (isTransactionActive()) {
                        entityManager.getTransaction().rollback();
                    }
                }
            };
            TransactionContext transactionContext = Context.getCommandContext().getTransactionContext();
            transactionContext.addTransactionListener(TransactionState.COMMITTED, jpaTransactionCommitListener);
            transactionContext.addTransactionListener(TransactionState.ROLLED_BACK, jpaTransactionRollbackListener);
            // Also, start a transaction, if one isn't started already
            if (!isTransactionActive()) {
                entityManager.getTransaction().begin();
            }
        }
    }
    return entityManager;
}

Example 2 with TransactionContext

use of org.activiti.engine.impl.cfg.TransactionContext in project Activiti by Activiti.

the class JobRetryCmd method execute.

public Object execute(CommandContext commandContext) {
    JobEntity job = commandContext.getJobEntityManager().findJobById(jobId);
    if (job == null) {
        return null;
    }
    ActivityImpl activity = getCurrentActivity(commandContext, job);
    ProcessEngineConfiguration processEngineConfig = commandContext.getProcessEngineConfiguration();
    if (activity == null || activity.getFailedJobRetryTimeCycleValue() == null) {
        log.debug("activitiy or FailedJobRetryTimerCycleValue is null in job " + jobId + "'. only decrementing retries.");
        job.setRetries(job.getRetries() - 1);
        job.setLockOwner(null);
        job.setLockExpirationTime(null);
        if (job.getDuedate() == null) {
            // add wait time for failed async job
            job.setDuedate(calculateDueDate(commandContext, processEngineConfig.getAsyncFailedJobWaitTime(), null));
        } else {
            // add default wait time for failed job
            job.setDuedate(calculateDueDate(commandContext, processEngineConfig.getDefaultFailedJobWaitTime(), job.getDuedate()));
        }
    } else {
        String failedJobRetryTimeCycle = activity.getFailedJobRetryTimeCycleValue();
        try {
            DurationHelper durationHelper = new DurationHelper(failedJobRetryTimeCycle, processEngineConfig.getClock());
            job.setLockOwner(null);
            job.setLockExpirationTime(null);
            job.setDuedate(durationHelper.getDateAfter());
            if (job.getExceptionMessage() == null) {
                // is it the first exception 
                log.debug("Applying JobRetryStrategy '" + failedJobRetryTimeCycle + "' the first time for job " + job.getId() + " with " + durationHelper.getTimes() + " retries");
                // then change default retries to the ones configured
                job.setRetries(durationHelper.getTimes());
            } else {
                log.debug("Decrementing retries of JobRetryStrategy '" + failedJobRetryTimeCycle + "' for job " + job.getId());
            }
            job.setRetries(job.getRetries() - 1);
        } catch (Exception e) {
            throw new ActivitiException("failedJobRetryTimeCylcle has wrong format:" + failedJobRetryTimeCycle, exception);
        }
    }
    if (exception != null) {
        job.setExceptionMessage(exception.getMessage());
        job.setExceptionStacktrace(getExceptionStacktrace());
    }
    // Dispatch both an update and a retry-decrement event
    ActivitiEventDispatcher eventDispatcher = commandContext.getEventDispatcher();
    if (eventDispatcher.isEnabled()) {
        eventDispatcher.dispatchEvent(ActivitiEventBuilder.createEntityEvent(ActivitiEventType.ENTITY_UPDATED, job));
        eventDispatcher.dispatchEvent(ActivitiEventBuilder.createEntityEvent(ActivitiEventType.JOB_RETRIES_DECREMENTED, job));
    }
    if (processEngineConfig.isAsyncExecutorEnabled() == false) {
        JobExecutor jobExecutor = processEngineConfig.getJobExecutor();
        JobAddedNotification messageAddedNotification = new JobAddedNotification(jobExecutor);
        TransactionContext transactionContext = commandContext.getTransactionContext();
        transactionContext.addTransactionListener(TransactionState.COMMITTED, messageAddedNotification);
    }
    return null;
}