Examples with WorkflowInstance org.opencastproject.workflow.api.WorkflowInstance used on opensource projects

Example 26 with WorkflowInstance

use of org.opencastproject.workflow.api.WorkflowInstance in project opencast by opencast.

the class WorkflowServiceImpl method process.

/**
 * Processes the workflow job.
 *
 * @param job
 *          the job
 * @return the job payload
 * @throws Exception
 *           if job processing fails
 */
protected String process(Job job) throws Exception {
    List<String> arguments = job.getArguments();
    Operation op = null;
    WorkflowInstance workflowInstance = null;
    WorkflowOperationInstance wfo = null;
    String operation = job.getOperation();
    try {
        try {
            op = Operation.valueOf(operation);
            switch(op) {
                case START_WORKFLOW:
                    workflowInstance = WorkflowParser.parseWorkflowInstance(job.getPayload());
                    logger.debug("Starting new workflow %s", workflowInstance);
                    runWorkflow(workflowInstance);
                    break;
                case RESUME:
                    workflowInstance = getWorkflowById(Long.parseLong(arguments.get(0)));
                    wfo = workflowInstance.getCurrentOperation();
                    Map<String, String> properties = null;
                    if (arguments.size() > 1) {
                        Properties props = new Properties();
                        props.load(IOUtils.toInputStream(arguments.get(arguments.size() - 1)));
                        properties = new HashMap<String, String>();
                        for (Entry<Object, Object> entry : props.entrySet()) {
                            properties.put(entry.getKey().toString(), entry.getValue().toString());
                        }
                    }
                    logger.debug("Resuming %s at %s", workflowInstance, workflowInstance.getCurrentOperation());
                    workflowInstance.setState(RUNNING);
                    update(workflowInstance);
                    wfo = runWorkflowOperation(workflowInstance, properties);
                    break;
                case START_OPERATION:
                    workflowInstance = getWorkflowById(Long.parseLong(arguments.get(0)));
                    wfo = workflowInstance.getCurrentOperation();
                    if (OperationState.RUNNING.equals(wfo.getState()) || OperationState.PAUSED.equals(wfo.getState())) {
                        logger.info("Reset operation state %s %s to INSTANTIATED due to job restart", workflowInstance, wfo);
                        wfo.setState(OperationState.INSTANTIATED);
                    }
                    wfo.setExecutionHost(job.getProcessingHost());
                    logger.debug("Running %s %s", workflowInstance, wfo);
                    wfo = runWorkflowOperation(workflowInstance, null);
                    updateOperationJob(job.getId(), wfo.getState());
                    break;
                default:
                    throw new IllegalStateException("Don't know how to handle operation '" + operation + "'");
            }
        } catch (IllegalArgumentException e) {
            throw new ServiceRegistryException("This service can't handle operations of type '" + op + "'", e);
        } catch (IndexOutOfBoundsException e) {
            throw new ServiceRegistryException("This argument list for operation '" + op + "' does not meet expectations", e);
        } catch (NotFoundException e) {
            logger.warn(e.getMessage());
            updateOperationJob(job.getId(), OperationState.FAILED);
        }
        return null;
    } catch (Exception e) {
        logger.warn(e, "Exception while accepting job " + job);
        try {
            if (workflowInstance != null) {
                logger.warn("Marking job {} and workflow instance {} as failed", job, workflowInstance);
                updateOperationJob(job.getId(), OperationState.FAILED);
                workflowInstance.setState(FAILED);
                update(workflowInstance);
            } else {
                logger.warn(e, "Unable to parse workflow instance");
            }
        } catch (WorkflowDatabaseException e1) {
            throw new ServiceRegistryException(e1);
        }
        if (e instanceof ServiceRegistryException)
            throw e;
        throw new ServiceRegistryException("Error handling operation '" + op + "'", e);
    }
}

Example 27 with WorkflowInstance

use of org.opencastproject.workflow.api.WorkflowInstance in project opencast by opencast.

the class WorkflowInstanceTest method testFlavorMarshalling.

@Test
public void testFlavorMarshalling() throws Exception {
    URI uri = new URI("http://testing");
    Track track = TrackImpl.fromURI(uri);
    track.setFlavor(MediaPackageElements.PRESENTATION_SOURCE);
    MediaPackage mp = MediaPackageBuilderFactory.newInstance().newMediaPackageBuilder().createNew();
    mp.add(track);
    WorkflowInstance workflow = new WorkflowInstanceImpl();
    workflow.setMediaPackage(mp);
    // Marshall the workflow to xml
    String xml = WorkflowParser.toXml(workflow);
    // Get it back from xml
    WorkflowInstance instance2 = WorkflowParser.parseWorkflowInstance(xml);
    Assert.assertEquals(workflow.getMediaPackage().getTracks()[0].getFlavor(), instance2.getMediaPackage().getTracks()[0].getFlavor());
    String namespaceXml = "<workflow xmlns=\"http://workflow.opencastproject.org\" xmlns:mp=\"http://mediapackage.opencastproject.org\"><parent/><mp:mediapackage><mp:media><mp:track type=\"presentation/source\" id=\"track-1\"><mp:url>http://testing</mp:url></mp:track></mp:media></mp:mediapackage></workflow>";
    WorkflowInstance instance3 = WorkflowParser.parseWorkflowInstance(namespaceXml);
    Assert.assertEquals(workflow.getMediaPackage().getTracks()[0].getFlavor(), instance3.getMediaPackage().getTracks()[0].getFlavor());
}

Example 28 with WorkflowInstance

use of org.opencastproject.workflow.api.WorkflowInstance in project opencast by opencast.

the class WorkflowRestEndpointTest method testGetWorkflowInstance.

@Test
public void testGetWorkflowInstance() throws Exception {
    try {
        restService.getWorkflowAsJson(-1);
        Assert.fail("This should have thrown a not found exception");
    } catch (NotFoundException e) {
    // expected
    }
    try {
        restService.getWorkflowAsXml(-1);
        Assert.fail("This should have thrown a not found exception");
    } catch (NotFoundException e) {
    // expected
    }
    WorkflowInstance xmlResponse = restService.getWorkflowAsXml(1);
    Assert.assertNotNull(xmlResponse);
}

Example 29 with WorkflowInstance

use of org.opencastproject.workflow.api.WorkflowInstance in project opencast by opencast.

the class WorkflowServiceImplTest method testRetryStrategyHold.

@Test
public void testRetryStrategyHold() throws Exception {
    WorkflowDefinitionImpl def = new WorkflowDefinitionImpl();
    def.setId("workflow-definition-1");
    def.setTitle("workflow-definition-1");
    def.setDescription("workflow-definition-1");
    def.setPublished(true);
    service.registerWorkflowDefinition(def);
    WorkflowOperationDefinitionImpl opDef = new WorkflowOperationDefinitionImpl("failOneTime", "fails once", null, true);
    opDef.setRetryStrategy(RetryStrategy.HOLD);
    opDef.setMaxAttempts(2);
    def.add(opDef);
    MediaPackage mp = MediaPackageBuilderFactory.newInstance().newMediaPackageBuilder().createNew();
    WorkflowInstance workflow = startAndWait(def, mp, WorkflowState.PAUSED);
    WorkflowOperationInstance errorResolutionOperation = service.getWorkflowById(workflow.getId()).getOperations().get(0);
    WorkflowOperationInstance failOneTimeOperation = service.getWorkflowById(workflow.getId()).getOperations().get(1);
    Assert.assertTrue(errorResolutionOperation.getTemplate().equals(WorkflowServiceImpl.ERROR_RESOLUTION_HANDLER_ID));
    Assert.assertTrue(errorResolutionOperation.getState() == OperationState.PAUSED);
    Assert.assertTrue(errorResolutionOperation.getFailedAttempts() == 0);
    Assert.assertTrue(failOneTimeOperation.getState() == OperationState.RETRY);
    Assert.assertTrue(failOneTimeOperation.getMaxAttempts() == 2);
    Assert.assertTrue(failOneTimeOperation.getFailedAttempts() == 1);
}

Example 30 with WorkflowInstance

use of org.opencastproject.workflow.api.WorkflowInstance in project opencast by opencast.

the class WorkflowServiceImplTest method testRemove.

/**
 * Test for {@link WorkflowServiceImpl#remove(long)}
 *
 * @throws Exception
 *           if anything fails
 */
@Test
public void testRemove() throws Exception {
    WorkflowInstance wi1 = startAndWait(workingDefinition, mediapackage1, WorkflowState.SUCCEEDED);
    WorkflowInstance wi2 = startAndWait(workingDefinition, mediapackage2, WorkflowState.SUCCEEDED);
    // reload instances, because operations have no id before
    wi1 = service.getWorkflowById(wi1.getId());
    wi2 = service.getWorkflowById(wi2.getId());
    service.remove(wi1.getId());
    assertEquals(1, service.getWorkflowInstances(new WorkflowQuery()).size());
    for (WorkflowOperationInstance op : wi1.getOperations()) {
        assertEquals(0, serviceRegistry.getChildJobs(op.getId()).size());
    }
    service.remove(wi2.getId());
    assertEquals(0, service.getWorkflowInstances(new WorkflowQuery()).size());
}