Examples of org.apache.tapestry.services.Heartbeat

org.apache.tapestry.services.Heartbeat
Allow for deferred execution of logic, useful when trying to get multiple components to coordinate behavior. A component may add a command to be executed " {@link #end() at the end of the heartbeat}". The classic example of this is a Label and the field it labels; since we don't know which order the two will render, we can't tell if the field's id is correct until after both have rendered.

    @Test
    public void trigger_immediate()
    {
        FormSupport support = mockFormSupport();
        ComponentResources resources = mockComponentResources();
        Heartbeat heartbeat = new HeartbeatImpl();
        Request request = mockRequest();


        String elementName = "myname";


        train_getParameter(request, elementName, "login");


        replay();


        heartbeat.begin();


        Submit submit = new Submit(request);


        submit.setup(resources, support, heartbeat);
        submit.setDefer(false);


        submit.processSubmission(support, elementName);


        verify();


        expect(resources.triggerEvent(Submit.SELECTED_EVENT, null, null)).andReturn(false);


        replay();


        heartbeat.end();


        verify();


    }

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public class LoopTest extends InternalBaseTestCase
{
    @Test
    public void non_empty_iterator()
    {
        Heartbeat hb = mockHeartbeat();


        // Really hard to test the exact timing of all this; it will have to
        // be "proven" by integration tests.


        hb.begin();
        getMocksControl().times(3);


        hb.end();
        getMocksControl().times(3);


        replay();


        Loop loop = new Loop();

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    @Test
    public void trigger_immediate()
    {
        FormSupport support = newFormSupport();
        ComponentResources resources = mockComponentResources();
        Heartbeat heartbeat = new HeartbeatImpl();


        String elementName = "myname";


        train_getParameterValue(support, elementName, "login");


        replay();


        heartbeat.begin();


        Submit submit = new Submit();


        submit.setup(resources, support, heartbeat);
        submit.setDefer(false);


        submit.processSubmission(support, elementName);


        verify();


        expect(resources.triggerEvent(Submit.SELECTED_EVENT, null, null)).andReturn(false);


        replay();


        heartbeat.end();


        verify();


    }

View Full Code Here

    @Test
    public void trigger_immediate()
    {
        FormSupport support = mockFormSupport();
        ComponentResources resources = mockComponentResources();
        Heartbeat heartbeat = new HeartbeatImpl();
        Request request = mockRequest();


        String elementName = "myname";


        train_getParameter(request, elementName, "login");


        replay();


        heartbeat.begin();


        Submit submit = new Submit(request);


        submit.setup(resources, support, heartbeat);
        submit.setDefer(false);


        submit.processSubmission(support, elementName);


        verify();


        expect(resources.triggerEvent(Submit.SELECTED_EVENT, null, null)).andReturn(false);


        replay();


        heartbeat.end();


        verify();
    }

View Full Code Here

        _formSupport = new FormSupportImpl(_paramLookup);


        _environment.push(ValidationTracker.class, _tracker);
        _environment.push(FormSupport.class, _formSupport);


        Heartbeat heartbeat = new HeartbeatImpl();


        _environment.push(Heartbeat.class, heartbeat);


        heartbeat.begin();


        try
        {
            final Holder<ActionResponseGenerator> holder = Holder.create();


            ComponentEventHandler handler = new ComponentEventHandler()
            {
                public boolean handleResult(Object result, Component component,
                        String methodDescription)
                {
                    if (result instanceof Boolean) return ((Boolean) result);


                    holder.put(_eventResultProcessor.processComponentEvent(
                            result,
                            component,
                            methodDescription));


                    return true; // Abort other event processing.
                }
            };


            _resources.triggerEvent(PREPARE, context, handler);


            if (holder.hasValue()) return holder.get();


            // TODO: Ajax stuff will eventually mean there are multiple values for this parameter
            // name


            String actionsBase64 = _paramLookup.getParameter(FORM_DATA);


            try
            {
                ObjectInputStream ois = new Base64ObjectInputStream(actionsBase64);


                while (true)
                {
                    String componentId = ois.readUTF();
                    ComponentAction action = (ComponentAction) ois.readObject();


                    Component component = _source.getComponent(componentId);


                    action.execute(component);
                }
            }
            catch (EOFException ex)
            {
                // Expected.
            }
            catch (Exception ex)
            {
                throw new RuntimeException(ex);
            }


            heartbeat.end();


            ValidationTracker tracker = _environment.peek(ValidationTracker.class);


            // Let the listeners peform any final validations

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        _formSupport = new FormSupportImpl(_paramLookup);


        _environment.push(ValidationTracker.class, _tracker);
        _environment.push(FormSupport.class, _formSupport);


        Heartbeat heartbeat = new HeartbeatImpl();


        _environment.push(Heartbeat.class, heartbeat);


        heartbeat.begin();


        try
        {
            final Holder<ActionResponseGenerator> holder = Holder.create();


            ComponentEventHandler handler = new ComponentEventHandler()
            {
                public boolean handleResult(Object result, Component component,
                        String methodDescription)
                {
                    if (result instanceof Boolean)
                        return ((Boolean) result);


                    holder.put(_eventResultProcessor.processComponentEvent(
                            result,
                            component,
                            methodDescription));


                    return true; // Abort other event processing.
                }
            };


            _resources.triggerEvent(PREPARE, context, handler);


            if (holder.hasValue())
                return holder.get();


            // TODO: Ajax stuff will eventually mean there are multiple values for this parameter
            // name


            String actionsBase64 = _paramLookup.getParameter(FORM_DATA);


            try
            {
                ObjectInputStream ois = new Base64ObjectInputStream(actionsBase64);


                while (true)
                {
                    String componentId = ois.readUTF();
                    ComponentAction action = (ComponentAction) ois.readObject();


                    Component component = _source.getComponent(componentId);


                    action.execute(component);
                }
            }
            catch (EOFException ex)
            {
                // Expected.
            }
            catch (Exception ex)
            {
                throw new RuntimeException(ex);
            }


            heartbeat.end();


            ValidationTracker tracker = _environment.peek(ValidationTracker.class);


            // Let the listeners peform any final validations

View Full Code Here

        _formSupport = new FormSupportImpl(_paramLookup);


        _environment.push(ValidationTracker.class, _tracker);
        _environment.push(FormSupport.class, _formSupport);


        Heartbeat heartbeat = new HeartbeatImpl();


        _environment.push(Heartbeat.class, heartbeat);


        heartbeat.begin();


        try
        {
            final Holder<ActionResponseGenerator> holder = Holder.create();


            ComponentEventHandler handler = new ComponentEventHandler()
            {
                public boolean handleResult(Object result, Component component,
                        String methodDescription)
                {
                    if (result instanceof Boolean) return ((Boolean) result);


                    holder.put(_eventResultProcessor.processComponentEvent(
                            result,
                            component,
                            methodDescription));


                    return true; // Abort other event processing.
                }
            };


            _resources.triggerEvent(PREPARE, context, handler);


            if (holder.hasValue()) return holder.get();


            // TODO: Ajax stuff will eventually mean there are multiple values for this parameter
            // name


            String actionsBase64 = _paramLookup.getParameter(FORM_DATA);


            try
            {
                ObjectInputStream ois = new Base64ObjectInputStream(actionsBase64);


                while (true)
                {
                    String componentId = ois.readUTF();
                    ComponentAction action = (ComponentAction) ois.readObject();


                    Component component = _source.getComponent(componentId);


                    action.execute(component);
                }
            }
            catch (EOFException ex)
            {
                // Expected.
            }
            catch (Exception ex)
            {
                throw new RuntimeException(ex);
            }


            heartbeat.end();


            ValidationTracker tracker = _environment.peek(ValidationTracker.class);


            // Let the listeners peform any final validations

View Full Code Here

        Runnable r1 = mockRunnable();
        Runnable r2 = mockRunnable();


        replay();


        Heartbeat hb = new HeartbeatImpl();


        hb.begin();


        hb.defer(r1);
        hb.defer(r2);


        verify();


        r1.run();
        r2.run();


        replay();


        hb.end();


        verify();
    }

View Full Code Here

        Runnable r2 = mockRunnable();
        Runnable r3 = mockRunnable();


        replay();


        Heartbeat hb = new HeartbeatImpl();


        hb.begin();


        hb.defer(r1);
        hb.defer(r2);


        hb.begin();


        hb.defer(r3);


        verify();


        r3.run();


        replay();


        hb.end();


        verify();


        r1.run();
        r2.run();


        replay();


        hb.end();


        verify();
    }

View Full Code Here

public class LoopTest extends InternalBaseTestCase
{
    @Test
    public void non_empty_iterator()
    {
        Heartbeat hb = mockHeartbeat();


        // Really hard to test the exact timing of all this; it will have to
        // be "proven" by integration tests.


        hb.begin();
        getMocksControl().times(3);


        hb.end();
        getMocksControl().times(3);


        replay();


        Loop loop = new Loop();

View Full Code Here

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Related Classes of org.apache.tapestry.services.Heartbeat

org.apache.tapestry.corelib.components.Form

org.apache.tapestry.corelib.components.LoopTest

org.apache.tapestry.corelib.components.SubmitTest

org.apache.tapestry.internal.services.HeartbeatImplTest

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