I want to make a custom camel processor to behave as a custom component.I read it as it as possible from http://camel.apache.org/processor.html - section--> Turning your processor into a full component.
Here the Custom Processor created will have to do the job when i call
someComponent://action1?param1=value1¶m2=value2
in the route.
For this i created a sample component using maven catalog.This created Endpoint,Consumer, Producer and Component classes.
The link says that the component should return ProcessorEndpoint which i have done.
So, Endpoint looks as below
public class SampleEndpoint extends ProcessorEndpoint{
// Automatically Generated code begins
public Producer createProducer() throws Exception{
return new SampleProducer(this, processor);
}
public Consumer createConsumer() throws Exception{
throw new UnsupportedOperationException("This operation is not permitted....");
}
// Automatically generated code ends here
//added below to make custom processor work for custom component
public Processor createProcessor(Processor processor){
return new SampleProcessor();
}
}
But, here the code in the processor is not getting executed instead the code in the SampleProducer gets executed.
Here i want the processor to be excuted.How do i do that?
When extending ProcessorEndpoint, the Producer from createProducer() will handle the exchange, i.e. Producer.process(Exchange exchange).
This is why you are seeing SampleProducer being used. But if you wanted to delegate to a processor, you could probably just change your code to be:
return new SampleProducer(this, new SampleProcessor());
My best advice would be to attach a debugger and put breakpoints in your SampleEndpoint, SampleProducer and SampleProcessor methods to see what gets called and when.
Related
Is it possible to use some kind of #Before annotation ?
I want to 'pre-load' datas (POST) before to launch my tests (GET).
But I only want parallel executions on the GET.
I was thinking to define a method with #LoadWith("preload_generation.properties") with :
number.of.threads=1
ramp.up.period.in.seconds=1
loop.count=1
Just to be sure that we execute it only once.
But it looks like I cannot choose the order of execution, and I need this POST method to be the first one executed.
I also tried to put a TestMappings with my 'loading method' at the top of the class.
But it doesn't work neither.
I am not aware of any way that ZeroCode would be able to do this as it is specific to only re-leveraging tests already written in JUnit. My suggestion would be to follow a bit more traditional approach and use standard JUnit setup methods
#BeforeClass
public static void setupClass() {
// setup before the entire class
}
#Before
public void setup() {
// setup before each individual test
}
rather than attempting to use a tool outside of its intended purposes.
As per your described scenario above that you want to ensure data is loaded before your tests are executed, especially in the case of being run under load by ZeroCode it is suggested that you determine how to create your data using the
#BeforeClass
public static void setupClass() {
// setup before the entire class
}
While this may take a bit more thought into how you create your data by creating it before all the tests it will ensure that your load test is excluding data setup time.
This question already has answers here:
Invoke or BeginInvoke cannot be called on a control until the window handle has been created
(8 answers)
Closed 9 years ago.
I have a WinForm screen that is also a message consumer (using Rhino ESB). If I try to update anything on the screen when I receive a message, nothing happens. A call to Invoke gives me an error that the handle is not created. The form is definitely created though, I'm firing a message on button click on the form and the background process sends a message back. It's with this return message I want to update the UI.
THIS IS NOT A DUPLICATE QUESTION, NONE OF THE SUGGESTED SOLUTIONS WORK.
I believe the difference here may be because I'm using Rhino Service bus. Rhino may be constructing a separate instance of my form rather than the one I'm using. I think what I probably need to do is to have Rhino use my instance of the form as the consumer by passing my instance into the IoC container Rhino is using. Another alternative is to move the Consumer off to it's own class and inject my Form into the consumer, and put a public method on my Form for the Consumer to use. This may work fine with my app because this is the main form and will never be disposed unless the app is closed. This would become problematic on another form that may be instantiated multiple times. Perhaps I could have my form "observe" another static object that a separate Consumer class updates. Please give suggestions as to the best approach.
public partial class MainForm : Form, ConsumerOf<MoveJobCompletedEvent>
{
public void Consume(MoveJobCompletedEvent message)
{
// This does nothing!
txtLogs.Text = "\nJob completed!";
}
}
This throws an error:
this.BeginInvoke((MethodInvoker)delegate
{
txtLogs.Text += "\nJob job completed!";
});
ERROR: Invoke or BeginInvoke cannot be called on a control until the window handle has been created.
It seems that you're consuming a JobCompleted event before the window handle is created. You could try the following:
public partial class MainForm : Form, ConsumerOf<MoveJobCompletedEvent>
{
public void Consume(MoveJobCompletedEvent message)
{
if (!this.HandleCreated)
return;
this.BeginInvoke((MethodInvoker)delegate
{
txtLogs.Text += "\nJob job completed!";
});
}
}
I am using a Thread in Spring mvc project to do some background working.
What I have done is
I write a class which extends Thread. and I added init() method to start this class.
Whole ThreadTest.java is Below.
package org.owls.thread.vo;
public class ThreadTest extends Thread {
public void init(){
this.start();
}
public void pause(){
this.interrupt();
}
#Override
public void run() {
for(int i = 0; i < 100; i++){
try{
Thread.sleep(3000);
System.out.println("Thread is running : " + i);
} catch(Exception e){e.printStackTrace();}
}
}
};
edit root-context.xml intent to start this Thread as soon as possible when the server started.
<bean id="threadTest" class="org.owls.thread.vo.ThreadTest" init-method="init"/>
Now is the problem. I want to make a toggle button(pause/resume) in my home.jsp and When I click the button it works. But I do not know how can I access to the Thread, which already registered and run.
please, show me the way~>0<
P.S
additional question about java Thread.
What method exactly means pause and resume. I thought stop is the one similar to pause, but it is deprecated.
And start() is somehow feels like 'new()' not resume.
Thanks
I figured out how to control a thread.
if I want to pause(not stop), code should be like below.
thread.suspend();
And want to resume this from where it paused, like below.
thread.resume();
even though those methods are both deprecated.
(if somebody knows some replacement of these, reply please)
If you do not want to yellow warning in your spring project,
you can remove warning by simply add an annotation on that method.
annotation is #SuppressWarnings("deprecated").
=========================================================
From here, additional solutions based on my experience.
To make automatic executing Spring mvc Thread,
I did following steps.
make a simple Class which extends Thread class.
inside that class, make a method. this will be calles by
config files. in this method. I wrote code like "this.start();".
Let Spring knows we have a Thread class that should run independently
with Web activities. To do this, we have to edit root-context.xml.
Add a bean like this.
<bean id="threadTest" class="org.owls.thread.vo.ThreadTest" init-method="init"/>
init is the method name which generated by user in step 2.
Now we run this project Automatically Thread runs.
Controlling Thread is not relavent with Spring, I guess.
It is basically belongs to java rules.
I hope this TIP(?) will be helpful to people who just entered world of programming :-)
I'm having trouble synchronising my GEF editor with the EMF-based model. I think this is due to the fact that the model-internal EMF Adapter, or rather the methods it calls, aren't finished before the editor's Adapter's notifyChanged() is called and updates the model children. This leads to the editor view being out-of-sync with the model itself, or rather, the changes to the model not being represented in the view when they should be.
Consider this set up. A Command "CreateNodeCommand" adds a node to the underlying model:
#Override
public void execute() {
...
getNewNode().setGraph(getGraph());
...
}
The GraphEditPart has an internal class extending org.eclipse.emf.common.notify.Adapter. It's notifyChanged() method is indeed notified, as tested similar to below (incomplete code):
#Override
public void notifyChanged(Notification notification) {
switch (notification.getEventType()) {
case Notification.ADD:
System.err.println("ADD occurred!");
refreshChildren();
}
The problem is, that the (third-party) model itself also implements an Adapter, which in turn runs a number of methods on the new model element, such as adding an ID, etc.
It seems to me that the fact that the new element's figure doesn't show up in the editor directly after it's been created - but only after the next editing step, the figure for which then doesn't appear - suggests that the model adapter is still busy setting up the new element while refreshChildren() is already being called by the editor adapter.
This seems to call for synchronisation, but I'm unsure whether this can be achieved with built-in Java functionality for multithreading, or calls for an EMF-based approach.
Please share your knowledge about synchronising in EMF.
Many thanks in advance!
EDIT
On request, here is the source code for the getModelChildren() method:
#Override
protected List<EObject> getModelChildren() {
List<EObject> allModelObjects = new ArrayList<EObject>();
allModelObjects.addAll(((MyGraph) getModel()).getTokens());
allModelObjects.addAll(((MyGraph) getModel()).getNodes());
return allModelObjects;
}
Debugging the (3rd party) model, I found out that the Graph's enotify() fired the notification before the actual adding took place, hence my Adapterreceived the notification too early, i.e., before the node had been added.
The notification is now called after the add and everything works fine.
Thanks for all of your help!
Try extending EContentAdapter instead of AdapterImpl, and not forget to call
super.notifyChanged(Notification notification);
in it. It's an adapter, which will add itself to new elements of the model, and notify you then they are changed.
I have an application that has a class named: UploadItem. The application creates uploading tasks based on information it has, for example, an upload needs to be created to upload a file to sitex.com with this the application creates a new UploadItem and adds that to an ObservableCollection, the collection is bound to a listview.
Now comes the part that I cannot solve.. I decided to change the structure so that people can create their own plugins that can upload a file, the problem lies with the fact that the UploadItem class has properties such as:
string _PercentagedDone;
public string PercentageDone
{
get { return _PercentagedDone; }
set { _PercentagedDone = value + "%"; NotifyPropertyChanged("PercentageDone"); }
}
But the plugin controls on how a file is uploaded, so how would the plugin edit the PercentageDone property that is located in the UploadItem class? If there is no way to do such a thing, then is there another way to achieve the same, i.e. showing the progress on the main GUI?
You'll want to define an interface for the plugins. Something like:
public interface IUploadPlugin
{
Task<bool> Upload(IEnumerable<Stream> files);
int Progress { get; }
}
The plugins then need to implement this interface and export themselves:
[Export(typeof(IUploadPlugin))]
public class MyUploader : IUploadPlugin, INotifyPropertyChanged
{
// ...
}
Notice that this plugin implements INotifyPropertyChanged. This is an easy way to handle updating the progress. Fire PropertyChanged on the Progress property and then databind your ProgressBar control in the main view to this property. Make sure that you fire PropertyChanged on the UI thread.
Another option would be to fire a custom event when the property changes. You could handle this event in the main view logic and update the progress.
Notice that I'm using Task for the return. This allows the caller to wait until the upload task finishes. You could use a callback instead, but with the CTP of the next version of .NET, using Task<> will allow you to use the await keyword for your async programming. Check it out here and here.