Java Code Examples for org.flowable.job.service.impl.asyncexecutor.AsyncExecutor#start()

public static void executeJobExecutorForTime(ProcessEngineConfiguration processEngineConfiguration, long maxMillisToWait, long intervalMillis) {
    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        try {
            while (!task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }

    } finally {
        asyncExecutor.shutdown();
    }
}
 

public void waitForJobExecutorToProcessAllJobs(long maxMillisToWait, long intervalMillis) {
    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        boolean areJobsAvailable = true;
        try {
            while (areJobsAvailable && !task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
                areJobsAvailable = areJobsAvailable();
            }
        } catch (InterruptedException e) {
        } finally {
            timer.cancel();
        }
        if (areJobsAvailable) {
            throw new FlowableException("time limit of " + maxMillisToWait + " was exceeded");
        }

    } finally {
        asyncExecutor.shutdown();
    }
}
 

public static void executeJobExecutorForTime(CmmnEngineConfiguration cmmnEngineConfiguration, long maxMillisToWait, long intervalMillis) {
    AsyncExecutor asyncExecutor = cmmnEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        try {
            while (!task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }

    } finally {
        asyncExecutor.shutdown();
    }
}
 

public static void executeJobExecutorForTime(ProcessEngineConfiguration processEngineConfiguration, long maxMillisToWait, long intervalMillis) {
    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        try {
            while (!task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }

    } finally {
        asyncExecutor.shutdown();
    }
}
 

public void waitForJobExecutorToProcessAllJobs(long maxMillisToWait, long intervalMillis) {
    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        boolean areJobsAvailable = true;
        try {
            while (areJobsAvailable && !task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
                areJobsAvailable = areJobsAvailable();
            }
        } catch (InterruptedException e) {
        } finally {
            timer.cancel();
        }
        if (areJobsAvailable) {
            throw new FlowableException("time limit of " + maxMillisToWait + " was exceeded");
        }

    } finally {
        asyncExecutor.shutdown();
    }
}
 

public static void waitForJobExecutorToProcessAllJobs(ProcessEngineConfiguration processEngineConfiguration,
        ManagementService managementService, long maxMillisToWait, long intervalMillis, boolean shutdownExecutorWhenFinished) {

    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        boolean areJobsAvailable = true;
        try {
            while (areJobsAvailable && !task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
                try {
                    areJobsAvailable = areJobsAvailable(managementService);
                } catch (Throwable t) {
                    // Ignore, possible that exception occurs due to locking/updating of table on MSSQL when
                    // isolation level doesn't allow READ of the table
                }
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }
        if (areJobsAvailable) {
            throw new FlowableException("time limit of " + maxMillisToWait + " was exceeded");
        }

    } finally {
        if (shutdownExecutorWhenFinished) {
            asyncExecutor.shutdown();
        }
    }
}
 

public static void waitForJobExecutorToProcessAllJobsAndExecutableTimerJobs(ProcessEngineConfiguration processEngineConfiguration, ManagementService managementService, long maxMillisToWait, long intervalMillis,
        boolean shutdownExecutorWhenFinished) {

    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();
    processEngineConfiguration.setAsyncExecutorActivate(true);

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        boolean areJobsAvailable = true;
        try {
            while (areJobsAvailable && !task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
                try {
                    areJobsAvailable = areJobsOrExecutableTimersAvailable(managementService);
                } catch (Throwable t) {
                    // Ignore, possible that exception occurs due to locking/updating of table on MSSQL when
                    // isolation level doesn't allow READ of the table
                }
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }
        if (areJobsAvailable) {
            throw new FlowableException("time limit of " + maxMillisToWait + " was exceeded");
        }

    } finally {
        if (shutdownExecutorWhenFinished) {
            processEngineConfiguration.setAsyncExecutorActivate(false);
            asyncExecutor.shutdown();
        }
    }
}
 

public static void waitForExecutorToProcessAllJobs(final AsyncExecutor asyncExecutor, Callable<Boolean> callable,
        final long maxMillisToWait, final long intervalMillis, final boolean shutdownExecutorWhenFinished) {

    if (asyncExecutor == null) {
        throw new FlowableException("No async executor set. Check the cmmn engine configuration.");
    }
    
    asyncExecutor.start();

    try {
        Timer timer = new Timer();
        InterruptTask interruptTask = new InterruptTask(Thread.currentThread());
        timer.schedule(interruptTask, maxMillisToWait);
        
        boolean areJobsAvailable = true;
        try {
            while (areJobsAvailable && !interruptTask.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
                try {
                    areJobsAvailable = callable.call();
                } catch (Throwable t) { 
                    // ignore
                }
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }
        if (areJobsAvailable) {
            throw new FlowableException("Time limit of " + maxMillisToWait + " was exceeded");
        }

    } finally {
        if (shutdownExecutorWhenFinished) {
            asyncExecutor.shutdown();
        }
    }
}
 

protected static void internalWaitForJobs(ProcessEngineConfiguration processEngineConfiguration, ManagementService managementService,
    Predicate<ManagementService> jobsAvailablePredicate, long maxMillisToWait, long intervalMillis, boolean shutdownExecutorWhenFinished) {
    AsyncExecutor asyncExecutor = processEngineConfiguration.getAsyncExecutor();
    asyncExecutor.start();
    processEngineConfiguration.setAsyncExecutorActivate(true);

    try {
        Timer timer = new Timer();
        InterruptTask task = new InterruptTask(Thread.currentThread());
        timer.schedule(task, maxMillisToWait);
        boolean areJobsAvailable = true;
        try {
            while (areJobsAvailable && !task.isTimeLimitExceeded()) {
                Thread.sleep(intervalMillis);
                try {
                    areJobsAvailable = jobsAvailablePredicate.test(managementService);
                } catch (Throwable t) {
                    // Ignore, possible that exception occurs due to locking/updating of table on MSSQL when
                    // isolation level doesn't allow READ of the table
                }
            }
        } catch (InterruptedException e) {
            // ignore
        } finally {
            timer.cancel();
        }
        if (areJobsAvailable) {
            throw new FlowableException("time limit of " + maxMillisToWait + " was exceeded");
        }

    } finally {
        if (shutdownExecutorWhenFinished) {
            processEngineConfiguration.setAsyncExecutorActivate(false);
            asyncExecutor.shutdown();
        }
    }
}
 

public static void waitForJobExecutorToProcessAllHistoryJobs(ProcessEngineConfiguration processEngineConfiguration, ManagementService managementService, 
        long maxMillisToWait, long intervalMillis, boolean shutdownExecutorWhenFinished) {

    ProcessEngineConfigurationImpl processEngineConfigurationImpl = (ProcessEngineConfigurationImpl) processEngineConfiguration;
    if (processEngineConfigurationImpl.isAsyncHistoryEnabled()) {
        AsyncExecutor asyncHistoryExecutor = processEngineConfiguration.getAsyncHistoryExecutor();
        
        if (!asyncHistoryExecutor.isActive()) {
            asyncHistoryExecutor.start();
        }

        try {
            Timer timer = new Timer();
            InterruptTask task = new InterruptTask(Thread.currentThread());
            timer.schedule(task, maxMillisToWait);
            boolean areJobsAvailable = true;
            try {
                while (areJobsAvailable && !task.isTimeLimitExceeded()) {
                    Thread.sleep(intervalMillis);
                    try {
                        areJobsAvailable = areHistoryJobsAvailable(managementService);
                    } catch (Throwable t) {
                        // Ignore, possible that exception occurs due to locking/updating of table on MSSQL when
                        // isolation level doesn't allow READ of the table
                    }
                }
            } catch (InterruptedException e) {
                // ignore
            } finally {
                timer.cancel();
            }
            if (areJobsAvailable) {
                throw new FlowableException("time limit of " + maxMillisToWait + " was exceeded");
            }

        } finally {
            if (shutdownExecutorWhenFinished) {
                asyncHistoryExecutor.shutdown();
            }
        }
    }
}
 

@Test
public void testSharedAsyncExecutor() throws Exception {
    // The async executor should be the same instance
    AsyncExecutor processEngineAsyncExecutor = processEngine.getProcessEngineConfiguration().getAsyncExecutor();
    AsyncExecutor cmmnEngineAsyncExecutor = cmmnEngine.getCmmnEngineConfiguration().getAsyncExecutor();
    assertThat(processEngineAsyncExecutor).isNotNull();
    assertThat(cmmnEngineAsyncExecutor).isNotNull();

    // Contrary to the asyncHistoryExecutor, the async executors are not shared between the engines (by default)
    assertThat(cmmnEngineAsyncExecutor).isNotSameAs(processEngineAsyncExecutor);

    assertThat(processEngineAsyncExecutor.getJobServiceConfiguration().getJobExecutionScope()).isNull();
    assertThat(cmmnEngineAsyncExecutor.getJobServiceConfiguration().getJobExecutionScope()).isEqualTo(JobServiceConfiguration.JOB_EXECUTION_SCOPE_CMMN);

    // Deploy and start test processes/cases
    // Trigger one plan item instance to start the process
    processEngine.getRepositoryService().createDeployment()
            .addClasspathResource("org/flowable/cmmn/test/CmmnEngineConfiguratorAsyncJobTest.taskAndTimer.bpmn20.xml").deploy();
    cmmnEngine.getCmmnRepositoryService().createDeployment()
            .addClasspathResource("org/flowable/cmmn/test/CmmnEngineConfiguratorAsyncJobTest.processAndTimer.cmmn.xml").deploy();

    // Starting the case instance starts the process task. The process has an async job at the beginning
    cmmnEngine.getCmmnRuntimeService().createCaseInstanceBuilder().caseDefinitionKey("timerAndProcess").start();
    Job job = processEngine.getManagementService().createJobQuery().singleResult();
    assertThat(job.getScopeType()).isNull();
    JobTestHelper.waitForJobExecutorToProcessAllJobs(processEngine.getProcessEngineConfiguration(), processEngine.getManagementService(), 10000L, 100L);

    // There should now be two timers, one for the case and one for the process
    List<Job> timerJobs = processEngine.getManagementService().createTimerJobQuery().list();
    timerJobs.forEach(timerJob -> {
        if (timerJob.getScopeId() != null) { // cmmn
            assertThat(timerJob.getScopeType()).isEqualTo(JobServiceConfiguration.JOB_EXECUTION_SCOPE_CMMN);
        } else {
            assertThat(timerJob.getScopeType()).isNull();
        }

        processEngine.getManagementService().moveTimerToExecutableJob(timerJob.getId());
    });

    // Can't use the JobTestHelper's, so manually starting the executors
    processEngineAsyncExecutor.start();
    cmmnEngineAsyncExecutor.start();

    try {
        long startTime = new Date().getTime();
        while (processEngine.getManagementService().createJobQuery().count() > 0
                && (new Date().getTime() - startTime > 10000)) {
            Thread.sleep(100L);
        }
    } finally {
        processEngineAsyncExecutor.shutdown();
        cmmnEngineAsyncExecutor.shutdown();
    }

    // There should be one user task which is async (from the case)
    job = processEngine.getManagementService().createJobQuery().singleResult();
    assertThat(job.getScopeType()).isEqualTo(JobServiceConfiguration.JOB_EXECUTION_SCOPE_CMMN);
    CmmnJobTestHelper.waitForJobExecutorToProcessAllJobs(cmmnEngine, 10000L, 100L, true);

    // There should be two user tasks now: one after the timer of the case and one after the timer of the process
    assertThat(processEngine.getTaskService().createTaskQuery().count()).isEqualTo(2);
    assertThat(cmmnEngine.getCmmnTaskService().createTaskQuery().count()).isEqualTo(2);

}