Examples of hudson.model.Queue$Task

org.eclipse.bpmn2.Task
Task whose execution is controlled by the queue.
{@link #equals(Object) Value equality} of {@link Task}s is used to collapse two tasks into one. This is used to avoid infinite queue backlog.
Pending {@link Task}s are persisted when Hudson shuts down, so it needs to be persistable via XStream. To create a non-persisted transient Task, extend {@link TransientTask} marker interface.
Plugins are encouraged to extend from {@link AbstractQueueTask}instead of implementing this interface directly, to maintain compatibility with future changes to this interface.
For historical reasons, {@link Task} object by itselfalso represents the "primary" sub-task (and as implied by this design, a {@link Task} must have at least one sub-task.)Most of the time, the primary subtask is the only sub task.

        return Arrays.asList("queue","q");
    }


    public void executeCommand(Bot bot, IMChat chat, IMMessage message,
                               Sender sender, String[] args) throws IMException {
    Queue queue = Hudson.getInstance().getQueue();
    Item[] items = queue.getItems();
    String reply;
    if (items.length > 0) {
      StringBuffer msg = new StringBuffer();
      msg.append("Build queue:");
      for (Item item : queue.getItems()) {
        msg.append("\n- ")
        .append(item.task.getFullDisplayName())
        .append(": ").append(item.getWhy());
      }
      reply = msg.toString();

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        Jenkins jenkins = Jenkins.getInstance();
        if (jenkins == null) {
            return;
        }


        Queue q = jenkins.getQueue();


        // if the build is still in the queue, abort it.
        // BuildTriggerListener will report the failure, so this method shouldn't call getContext().onFailure()
        for (Queue.Item i : q.getItems()) {
            BuildTriggerAction bta = i.getAction(BuildTriggerAction.class);
            if (bta!=null && bta.getStepContext().equals(getContext())) {
                q.cancel(i);
            }
        }


        // if there's any in-progress build already, abort that.
        // when the build is actually aborted, BuildTriggerListener will take notice and report the failure,

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                return Result.ABORTED;
            } catch (AggregatorFailureException e) {
                return Result.FAILURE;
            } finally {
                // if the build was aborted in the middle. Cancel all the configuration builds.
                Queue q = Hudson.getInstance().getQueue();
                synchronized (q) {// avoid micro-locking in q.cancel.
                    for (MatrixConfiguration c : activeConfigurations) {
                        if (q.cancel(c)) {
                            logger.println(Messages.MatrixBuild_Cancelled(c.getDisplayName()));
                        }
                        MatrixRun b = c.getBuildByNumber(n);
                        if (b != null) {
                            Executor exe = b.getExecutor();

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        this.task = task;
    }


    @Override
    public boolean cancel(boolean mayInterruptIfRunning) {
        Queue q = Hudson.getInstance().getQueue();
        synchronized (q) {
            synchronized (this) {
                if(!executors.isEmpty()) {
                    if(mayInterruptIfRunning)
                        for (Executor e : executors)
                            e.interrupt();
                    return mayInterruptIfRunning;
                }
                return q.cancel(task);
            }
        }
    }

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    @Initializer(after=JOB_LOADED)
    public static void installDefaultQueueSorter() {
        ExtensionList<QueueSorter> all = all();
        if (all.isEmpty())  return;


        Queue q = Hudson.getInstance().getQueue();
        if (q.getSorter()!=null)        return; // someone has already installed something. leave that alone.


        q.setSorter(all.get(0));
        if (all.size()>1)
            LOGGER.warning("Multiple QueueSorters are registered. Only the first one is used and the rest are ignored: "+all);
    }

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        Bpmn2JsonUnmarshaller unmarshaller = new Bpmn2JsonUnmarshaller();
        Definitions definitions = ((Definitions) unmarshaller.unmarshall(getTestJsonFile("sequenceFlow.json"), "").getContents().get(0));
        assertTrue(definitions.getRootElements().size() == 1);
        Process process = getRootProcess(definitions);
        assertTrue(process.getFlowElements().get(0) instanceof Task);
        Task task = (Task) process.getFlowElements().get(0);
        assertEquals("task1", task.getName());
        Task task2 = (Task) process.getFlowElements().get(1);
        assertEquals("task2", task2.getName());
        SequenceFlow flow = (SequenceFlow) process.getFlowElements().get(2);
        assertEquals("seqFlow", flow.getName());
        assertEquals(task, flow.getSourceRef());
        assertEquals(task2, flow.getTargetRef());
        definitions.eResource().save(System.out, Collections.emptyMap());

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    public void testAssociationUnmarshalling() throws Exception {
        Bpmn2JsonUnmarshaller unmarshaller = new Bpmn2JsonUnmarshaller();
        Definitions definitions = ((Definitions) unmarshaller.unmarshall(getTestJsonFile("association.json"), "").getContents().get(0));
        assertTrue(definitions.getRootElements().size() == 1);
        Process process = getRootProcess(definitions);
        Task g = (Task) process.getFlowElements().get(0);
        assertEquals("task", g.getName());
        TextAnnotation textA = (TextAnnotation) process.getArtifacts().get(0);
        Association association = (Association) process.getArtifacts().get(1);
        assertEquals(g, association.getSourceRef());
        assertEquals(textA, association.getTargetRef());
        assertEquals(AssociationDirection.NONE, association.getAssociationDirection());

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    @Test
    public void testAssociationUnidirectionalUnmarshalling() throws Exception {
        Bpmn2JsonUnmarshaller unmarshaller = new Bpmn2JsonUnmarshaller();
        Definitions definitions = ((Definitions) unmarshaller.unmarshall(getTestJsonFile("associationOne.json"), "").getContents().get(0));
        Process process = getRootProcess(definitions);
        Task g = (Task) process.getFlowElements().get(0);
        assertEquals("task", g.getName());
        TextAnnotation textA = (TextAnnotation) process.getArtifacts().get(0);
        Association association = (Association) process.getArtifacts().get(1);
        assertEquals(g, association.getSourceRef());
        assertEquals(textA, association.getTargetRef());
        assertEquals(AssociationDirection.ONE, association.getAssociationDirection());

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    @Test
    public void testAssociationBidirectionalUnmarshalling() throws Exception {
        Bpmn2JsonUnmarshaller unmarshaller = new Bpmn2JsonUnmarshaller();
        Definitions definitions = ((Definitions) unmarshaller.unmarshall(getTestJsonFile("associationBoth.json"), "").getContents().get(0));
        Process process = getRootProcess(definitions);
        Task g = (Task) process.getFlowElements().get(0);
        assertEquals("task", g.getName());
        TextAnnotation textA = (TextAnnotation) process.getArtifacts().get(0);
        Association association = (Association) process.getArtifacts().get(1);
        assertEquals(g, association.getSourceRef());
        assertEquals(textA, association.getTargetRef());
        assertEquals(AssociationDirection.BOTH, association.getAssociationDirection());

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    private void updateTaskDataInputs(FlowElementsContainer container, Definitions def) {
        List<FlowElement> flowElements = container.getFlowElements();
        for(FlowElement fe : flowElements) {
            if(fe instanceof Task && !(fe instanceof UserTask)) {
                Task task = (Task) fe;
                boolean foundReadOnlyServiceTask = false;
                Iterator<FeatureMap.Entry> iter = task.getAnyAttribute().iterator();
                while(iter.hasNext()) {
                    FeatureMap.Entry entry = iter.next();
                    if(entry.getEStructuralFeature().getName().equals("taskName")) {
                        if(entry.getValue().equals("ReadOnlyService")) {
                            foundReadOnlyServiceTask = true;
                        }
                    }
                }


                if(foundReadOnlyServiceTask) {
                    if(task.getDataInputAssociations() != null) {
                        List<DataInputAssociation> dataInputAssociations = task.getDataInputAssociations();
                        for(DataInputAssociation dia : dataInputAssociations) {
                            if(dia.getTargetRef().getId().endsWith("TaskNameInput")) {
                                ((FormalExpression) dia.getAssignment().get(0).getFrom()).setBody("ReadOnlyService");
                            }
                        }

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