I have an application instance, backed by a web service using OIM Webservices Connector.
This connector is used in a synchronous manner by OIM, so when I create a new account in OIM for this application instance, the webservice calls the partner link's method.
Until the method ends its execution, the OIM screen hangs (as expected).
What seems strange to me is that, no matter the partner link's method executes successfully or not (when it does not execute properly, it throws an exception), the OIM operation actually ignores the exception and completes the operation.
Even if I explicitly throw an exception in the BPEL, I can see the error in the webservice log in weblogic, but the OIM method completes anyway.
What one would expect from a situation like this, I guess, is that OIM could just give an error message on the screen, because the operation failed. But no, OIM ignores the errors and go on.
Then I've tried to change the process definition in Design Console to force the process to stop on any error, setting the flag "required for completion" below
So I think I am missing something here
How can I make OIM abort some operation when the webservice connector throws an exception?
Assuming you're throwing a ConnectorException, check in the 'Responses' tab that you have that exception mapped, and in the 'Task to Object Status Mapping' you're setting the desired target Object Status for the object status setted before.
Related
In my web application, I have a custom configuration file which I want to monitor for changes and update the application settings immediately. So I am using IOptionsMonitor<T> to get this done. It works well.
As per the documentation the method that gets called when configuration file changed is wired up like below.
var data = _serviceProvider.GetRequiredService<IOptionsMonitor<MySettings>>();
data.OnChange(OnReaderSettingOptionsChanged);
Within the OnReaderSettingOptionsChanged() method, I do some validations and there is a need to throw an exception on an edge case so that application shouldn't continue.
The problem is when I throw the exception, I expect to see a error on browser (dev mode with details or normal error otherwise). But it's not showing because according to this exception gets fired in another thread.
So, is there another way for me to get this across to browser?
My goal is to influence the error descriptions that appear in BizTalk Administration Console in the Error Information tab of suspended instance windows, after errors occur in my custom functoids. If possible, I would also like the ErrorReport.Description promoted property to display this error description on the failed message.
I've read everything I can find about custom functoid development, but I can't find much about error handling within them. In particular, whenever my functoids throw exceptions, I see the boilerplate "Exception has been thrown at the target of an invocation" message that occurs whenever exceptions occur through reflection, rather than the message on the exception itself.
I had hoped to find something within the BaseFunctoid class framework that would allow me to submit an error string, so as to traverse the reflection boundary. Is there some way to pass error information from within a custom functoid, such that the BizTalk Administration Console will display it?
If I emulate the approach taken by DatabaseLookupFunctoid and DatabaseErrorExtractFunctoid, is there some way I can fail the map with the extracted error, rather than mapping it to a field on the destination schema as is shown in its examples?
The simplest way to do this is using custom C#, writing something like this in your code:
System.Diagnostics.EventLog.WriteEntry("EVENT_LOG_SOURCE", "Error message...", System.Diagnostics.EventLogEntryType.Error);
As Johns-305 mentions, you need to make sure your event source is registered (e.g. System.Diagnostics.EventLog.CreateEventSource("EVENT_LOG_SOURCE", "Application") - but this should really be done as part of your installation steps with an EventLogInstaller or some kind of script to set up the environment). It's certainly true that error handling in BizTalk is just .NET error handling, but one thing to keep in mind is that maps are actually executing as XSLT, and the context in which their executing can have a major impact on how exceptions and errors will be handled, particularly unhandled exceptions.
Orchestrations
If you're executing a transform in an orchestration that has exception handling in it, the exception thrown will be handled and may even fall into additional logging you have in the orchestration - in other words, executing a throw from a C# functiod will work the way you'd think it would work elsewhere in C#. However, I try to avoid this since you never know if a map will at some point be used else where and because exception handling in XSLT doesn't always work the way you'd think (see below).
Send/Receive Ports
Unfortunately, if you're executing a map on a send or receive port and throw an exception within it, you will almost definitely get very unhelpful error message in the event log and a suspended instance in the group hub. There is no easy, straightforward way to simple "cancel" a transform - XSLT 1.0 doesn't have any specified way of doing that (see for example Throwing an exception from XSLT). That leaves you with outputting an error string to a particular node in the output (and/or to the EventLog), or writing lots of completely custom XSLT to try to validate input, or designing your schemas properly and using a validating component where necessary. For example, if you have a node that must match a particular regex, or should never be empty, or should never repeat more than X times, make sure you set those restrictions on the schema and then make sure you pass it through the XmlValidator or similar before attempting to map.
The simplest answer is, you just do.
Keep in mind, there is nothing special at all about error handling in BizTalk apps, it's just regular plain old .Net error handling.
So, what you do is catch the error in you code, write the details to the Windows Event Log (be sure to create a custom Event Source) and...that's it. That is all I do. I don't worry about what appear in BT Admin specifically.strong text
Problem I am facing is I am using a for each component for iterating the records one by one and then inserting in to some end system.
What exactly is happening is when the data is correct it inserts the data into end system but as there is some exception in the data , exception handling code is executed but the flow do not resumes back in for loop so that all other records gets executed.
I have tried adding sublow and then calling it from flow but while adding a exception handling in sub flow gives me error as "invalid content in custom or catch or choice exception handling"
How to resumes the flow after executing the exception/error handling block.
.
SubFlows can't have endpoints or exception strategies that's why you're getting this error.
Never the less you could just use a normal flow instead of your subflow.
If it has no endpoint then it's call a private flow and can only be referenced from inside your application.
HTH.
You can go with two options here.
1. Use batch processing which can give you list of elements which are processed either successfully and failed.
2. Use until success scope
First, remember that as soon as a processor in ANY scope (flow, try, etc.) raises an error, after the error handler runs (regardless of the level of the handler: app-default, flow-scope, or try-scope) and regardless of whether the error-scope in the error-handler is On Error Propogate or On Error Continue, NO, repeat NO, other processors in that scope are executed.
The pattern that gets you what you want his this:
Wrap a processor (or series of processors) in a given scope into a Try Scope. (note, the easiest way to do this is to select the desired processors, right-click, and in the pop-up, click "Wrap in..." and then in the resulting fly-out - "try".
Drop an On Error Continue error-scope into the Error Handling section of the Try Scope.
Handle the error however you want in the error-scope. This can include NO processors, which treats the error as a no-op.
Thus, when the processor of concern throws the error, no further processors in that Try Scope get called, BUT, after running the Try Scope's On Error Continue error-scope's processor, processing will continue in the parent scope (in this case the flow) and you get to keep processing the elements in your collection.
NOTE: It is correct that a Subflow cannot have an error handler of its own. HOWEVER, it is important to point out that Subflows run in the context of their parent / calling scope (e.g. a Flow / Private Flow), which CAN have error handlers. So, if you have Flows A and B with their error-handlers A' and B', and Subflow C, and Flows A and B each call Subflow C through a flow reference, and further suppose you have processor P1 in C that flows an error, THEN:
When P1 runs being called from Flow A, control passes to A'
When P1 runs being called from Flow B, control passes to B'.
NOTE2: Until Successful will not help the iteration. It will only repeat the attempt to send the data until the processor doing so no longer errors. That does not seem to be what the O.P. was asking, though my interpretation may be wrong.
What is the difference between throw new Error and using Meteor.Error()? Is it simply that throw new Error will not be shown to the client, only on the server (the client will get a 500 Internal server error); and Meteor.Error will be sent to the client.
Are there any more differences? E.g. Does one break out of Fibers, stops downstream code?
The main thing with Meteor.Error is like you mentioned
A full stack trace (may not be given by Error always)
Possibility to send the error down to the client, in a limited non revealing form.
Hide the error from the server in certain cases (if its thrown in a method or publish method, and from hooks such as Accounts.onLoginAttempt)
The objects inside are EJSON serialised so a variety of data can be sent down to the client
When a Meteor.Error is thrown, because of the EJSON serialisation you get a bit more information on the server side.
Meteor displays the errors better.
Often you can get [Object object] as the reason to be displayed from ordinary errors when they come from ordinary Errors, from Meteor.wrapAsync
Theres not much else that's different, Meteor.Error is a a subclass of Error with the above changes.
So they'll both stop downstream code. When it comes to Fibers, if the ordinary one is thrown out of a Fiber in any way its likely to stop your app (on the server side & not in a method, startup, Meteor.setInterval, publish, etc)
Its definition is also quite small: https://github.com/meteor/meteor/blob/devel/packages/meteor/errors.js
I've got a real lemon on my hands. I hope someone who has the same problem or know how to fix it could point me in the right direction.
The Setup
I'm trying to create a WCF data service that uses an ADO Entity Framework model to retrieve data from the DB. I've added the WCF service reference and all seems fine. I have two sets of data service calls. The first one retrieves a list of all "users" and returns (this list does not include any dependent data (eg. address, contact, etc.). The second call is when a "user" is selected, the application request to include a few more dependent information such as address, contact details, messages, etc. given a user id. This also seems to work fine.
The Lemon
After some user selection change, ie. calling for more dependent data from the data service, the application stops to respond.
Crash error:
The request channel timed out while waiting for a reply after 00:00:59.9989999. Increase the timeout value passed to the call to Request or increase the SendTimeout value on the Binding. The time allotted to this operation may have been a portion of a longer timeout.
I restart the debugging process but the application will not make any data service calls until after about a minute or so, VS 08 displays a message box with error:
Unable to process request from service. 'http://localhost:61768/ConsoleService.svc'. Catastrophic failure.
I've Googled the hell out of this error and related issues but found nothing of use.
Possible Solutions
I've found some leads as to the source of the problem. In the client's app.config:
maxReceivedMessageSize > Set to a higher value, eg. 5242880.
receiveTimeout > Set to a higher value, eg. 00:30:00
I've tried these but all in vain. I suspect there is an underlying problem that cannot be fixed by simply changing some numbers. Any leads would be much appreciated.
I've solved it =P.
Cause
The WCF service works fine. It was the data service calls that was the culprit. Every time I made the call, I instantiated a new reference to the data service, but never closed/disposed the service reference. So after a couple of calls, the data service reaches its maximum connection and halts.
Solution
Make sure to close/dispose of any data service reference properly. Best practice would be to enclose in a using statement.
using(var dataService = new ServiceNS.ServiceClient() )
{
// Use service here
}
// The service will be disposed and connection freed.
Glad to see you fixed your problem.
However, you need to be carefull about using the using statement. Have a look at this article:
http://msdn.microsoft.com/en-us/library/aa355056.aspx