I have a method marked with #HystrixCommand that has a fallback method defined. I'm trying to add a hystrix property to it so that in case of a timeout it degrades gracefully into a fallback method.
But when I add the #HystrixProperty it shows an error in the STS IDE (3.8.2 Release) saying #HystrixProperty cannot be resolved to a type.
Here is what I'm trying to do:
#HystrixCommand(fallbackMethod="fallbackPerformOperation",
commandProperties={#HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="5000")})
public Future<Object> performOperation(String requestString) throws InterruptedException {
return new AsyncResult<Object>() {
#Override
public Object invoke() {.......
}}}
and this is the error being shown in the IDE:
I'm unable to figure out what the problem is.
Do I need to clear the STS Cache? If so how do I do it?
Thank You.
With in the IDE it is not obvious to suggest the import HystrixProperty class, thus you need to manually import this
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
Then the error should be gone
Related
I'm doing something in an Eclipse plugin that throws a ResourceException. I in turn need to know what the path of the resource involved is.
I can do this via ((ResourceStatus) caughtException.getStatus()).getPath() , however I then get admonished with Discouraged access: The type 'ResourceException' is not API (same warning for ResourceStatus). Should I just ignore the warning, or is there a better way for me to get the path? I'm just worried that this might change later on.
Technically I could extract the path from the exception's message, but that feels gross & have back luck with scraping data out of human-presentable strings :-/
ResourceException extends CoreException which is part of the official API so you can catch that.
ResourceStatus implements IResourceStatus which again is an official API.
So something like:
catch (CoreException ex) {
IStatus status = ex.getStatus();
if (status instanceof IResourceStatus) {
IPath path = ((IResourceStatus)status).getPath();
....
}
}
IResourceStatus also contains the definitions of the error codes that IStatus.getCode returns for a resource exception.
I am using my implicit wait as below:
//import
import org.openqa.selenium.WebDriver;
//driver declaration
public static WebDriver driver = null;
//implicit wait
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
having error as below:
The method timeouts() is undefined for the type WebDriver.Options
Need help to resolve this.
Nice catch. Seems to me a Bug with Selenium JARS
Here is the Answer to your Question:
As of now your code have only 2 lines. The first line public static WebDriver driver = null; shows no error as you have imported org.openqa.selenium.WebDriver;
In the second line , you are providing Implicit Wait as in driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);. In this case the IDE on which you are working tries to resolve the method timeouts() from org.openqa.selenium.WebDriver which we have already imported. Hence no error should have been shown for timeouts() method.
Hence the following error is not justified:
The method timeouts() is undefined for the type WebDriver.Options
The error should have been shown for either implicitlyWait() method or parameter TimeUnit.
Now, the actual error is with the parameter TimeUnit which is passed within implicitlyWait() method. The IDE clearly suggests about importing java.util.concurrent.
Solution:
The solution is to import java.util.concurrent.TimeUnit; and your code will be error free as follows:
import java.util.concurrent.TimeUnit;
Let me know if this Answers your Question.
My question is about phpunit+selenium usage.
The standard usage of this union is
class BlaBlaTest extends PHPUnit_Extensions_SeleniumTestCase
{... }
OR
class BlaBlaTest extends PHPUnit_Extensions_Selenium2TestCase
{...}
The first one (PHPUnit_Extensions_SeleniumTestCase) is not very convinient to use
(e.g. there is no such thing as $this->elements('xpath')).
Second(PHPUnit_Extensions_Selenium2TestCase) also has limited functionality
(e.g. there is no such functions as waitForPageToLoad() or clickAndWait(),
and using something like $this->timeouts()->implicitWait(10000) looks for me like
complete nonsense).
Is it possible to use the functional
PHPUnit_Extensions_SeleniumTestCase + PHPUnit_Extensions_Selenium2TestCase
in one test class?
Maybe smb knows good alternatives to phpunit+selenium?
Inspired by Dan I've written this for use in PHPUnit_Extensions_Selenium2TestCase and it seems to work ok:
/**
* #param string $id - DOM id
* #param int $wait - maximum (in seconds)
* #retrn element|false - false on time-out
*/
protected function waitForId($id, $wait=30) {
for ($i=0; $i <= $wait; $i++) {
try{
$x = $this->byId($id);
return $x;
}
catch (Exception $e) {
sleep(1);
}
}
return false;
}
Sorry for resurrecting this but I'd like to hopefully clear up some confusion for anyone stumbling across this.
You're saying that you wanted functionality from RC and WebDriver combined where there are workarounds to it, but I wouldn't recommend it. Firstly you'll need to understand the difference between both frameworks.
My brief definitions...
Selenium RC (PHPUnit_Extensions_SeleniumTestCase) is script oriented. By that I mean it will run your tests exactly how you expect the page to respond. This often will require more explicit commands such as the waitForPageToLoad() that you have mentioned when waiting for elements to appear and/or pages to loads.
Selenium WebDriver (PHPUnit_Extensions_Selenium2TestCase) uses a more native approach. It cuts off 'the middle-man' and runs your tests through your chosen browsers driver. Using the waitForPageToLoad() example, you wont need to explicitly put that wherever you open a page in your code because the WebDriver already knows when the page is loading and will resume the test when the page load request is complete.
If you need to define an implicit timeout in WebDriver, you will only need to place that in the setUp() method within a base Selenium class that will be extended in your test classes;
class BaseSelenium extends PHPUnit_Extensions_Selenium2TestCase {
protected function setUp() {
// Whatever else needs to be in here like setting
// the host url and port etc.
$this->setSeleniumServerRequestsTimeout( 100 ); // <- seconds
}
}
That will happily span across all of your tests and will timeout whenever a page takes longer than that to load.
Although I personally prefer WebDriver over RC (mainly because it's a lot faster!) there is a big difference between the methods available. Whenever I got stuck when recently converting a lot a RC tests to WebDriver I always turned to this first. It's a great reference to nearly every situation.
I hope that helps?
For functions such as waitForPageToLoad() and clickAndWait(), which are unavailable in Selenium2, you can reproduce those functions by using try catch blocks, in conjunction with implicit waits and explicit sleeps.
So, for a function like clickAndWait(), you can define what element you are waiting for, and then check for that element's existence for a set amount of seconds. If the element doesn't exist, the try catch block will stop the error from propagating. If the element does exist, you can continue. If the element doesn't exist after the set amount of time, then bubble up the error.
I would recommend using Selenium2 and then reproducing any functionality that you feel is missing from within your framework.
EXAMPLE:
def wait_for_present(element, retry = 10, seconds = 2)
for i in 0...retry
return true if element.present?
sleep(seconds)
end
return false
end
you can try use traits to extend two different classes http://php.net/manual/en/language.oop5.traits.php
class PHPUnit_Extensions_SeleniumTestCase{
...
}
change PHPUnit_Extensions_Selenium2TestCase class to trait:
trait PHPUnit_Extensions_Selenium2TestCase {
...
}
class blabla extends PHPUnit_Extensions_SeleniumTestCase {
use PHPUnit_Extensions_Selenium2TestCase;
your tests here..
}
I am working with the Windows 8 developer build. I am attempting to create a basic dependency property. I've used them before in WPF and Silverlight. However, I'm not trying to create one in WinRT without any luck.
public static DependencyProperty GPAProperty = DependencyProperty.Register("GPA", "double", "MyNamespace.MyClass", new PropertyMetadata(0));
public double GPA
{
get { return (double)GetValue(GPAProperty); }
set { SetValue(GPAProperty, value); }
}
When I run my code, I get a runtime exception when the app first starts that says:
A first chance exception of type 'System.TypeInitializationException' occurred in mscorlib.dll
My question is, does this look right? I keep thinking I'm overlooking something. But it all looks correct to me.
You need to change double to Double...
I'm doing an experiment with wxWebConnect test application, incorporating the xpcom tutorial at "http://nerdlife.net/building-a-c-xpcom-component-in-windows/"
I adapt MyComponent class as necessary to compile together with testapp.exe (not as separate dll), and on MyApp::OnInit I have the following lines:
ns_smartptr<nsIComponentRegistrar> comp_reg;
res = NS_GetComponentRegistrar(&comp_reg.p);
if (NS_FAILED(res))
return false;
ns_smartptr<nsIFactory> prompt_factory;
CreateMyComponentFactory(&prompt_factory.p);
nsCID prompt_cid = MYCOMPONENT_CID;
res = comp_reg->RegisterFactory(prompt_cid,
"MyComponent",
"#mozilla.org/mycomp;1",
prompt_factory);
Those lines are copied from GeckoEngine::Init(), using the same mechanism to register PromptService, etc. The code compiles well and testapp.exe is running as expected.
I put javascript test as below :
try {
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
const cid = "#mozilla.org/mycomp;1";
obj = Components.classes[cid].createInstance();
alert(typeof obj);
// bind the instance we just created to our interface
alert(Components.interfaces.nsIMyComponent);
obj = obj.QueryInterface(Components.interfaces.nsIMyComponent);
} catch (err) {
alert(err);
return;
}
and get the following exception:
Could not convert JavaScript argument arg 0 [nsISupport.QueryInterface]
The first alert says "object", so the line
Components.classes[cid].createInstance()
is returning the created instance.
The second alert says "undefined", so the interface nsIMyComponent is not recognized by XULRunner.
How to dynamically registering nsIMyComponent interface in wxWebConnect environment ?
Thx
I'm not sure what is happening here. The first thing I would check is that your component is scriptable (I assume it is, since the demo you copy from is). The next thing I would check is whether you can instantiate other, standard XULRunner components and get their interface (try something like "alert('Components.interfaces.nsIFile');" - at least in my version of wxWebConnect this shows an alert box with string "nsIFile".
Also, I think it would be worth checking the Error Console to make sure there are no errors or warnings reported. A magic string to do that (in Javascript) is:
window.open('chrome://global/content/console.xul', '', 'chrome,dialog=no,toolbar,resizable');