Global error handling question.

Hello! I've implemented error reporting logic in my app, so when some error occurs the email has been sent with error message, and error id. But it would be nice to locate error place (line number), i know that there is getStackTrace() method of error obj, but it works only if I run app from Flex Builder. How we can implement it in release build app?
Any help would be appreciated.
Thank you.

Moved to the Multiscreen development forum. I don't know of a way to do this but I'm hoping it will get more responses here.
Chris

Similar Messages

Global Error Handling - Possible?

Hi there!
Does anyone know if it's possible to catch unhandled errors
that occur in a flex application globally?
The Application.error event allows you to capture Error
Events that arise when communication with the outside world fails
for one reason or another, but as much as I've googled I haven't
been able to find anything for capturing coding errors such as
nullpointers etc. at runtime without wrapping every single line of
code with a try-catch.
In an ideal world I would like to catch these errors and
report them for logging on the server. Has anyone managed to
achieve this without resorting to try-catch-spamming?
The Flex-application in question is a central part of an
e-commerse system so it's rather silly that live errors remain
largely untracked...
Your thoughts would be highly appreciated!

Hi,
Try referring the below links...
http://www.summa-tech.com/blog/2010/01/04/global-error-handling-in-flex/
http://livedocs.adobe.com/flex/3/html/help.html?content=11_Handling_errors_06.html
You have one sample demo with source in first link.
Hope this will be helpful.
If this post answers your question or helps, please kindly mark it as such.
Thanks,
Bhasker Chari

Global Error Handling in Flex

Hello All,
I want to know if there is away to do Global Error Handling in Flex so that in case of any error, the pop-up (showing the exception stack trace) on the client machine should not come, instead I would be able to handle the exception in a more subtle manner.
Can I do something at the application level to prevent this ?? or should it be handled in each Flex method individually, code enclosed between try-catch blocks ?
Thanks & Regards,
Agraj

Hi,
Try referring the below links...
http://www.summa-tech.com/blog/2010/01/04/global-error-handling-in-flex/
http://livedocs.adobe.com/flex/3/html/help.html?content=11_Handling_errors_06.html
You have one sample demo with source in first link.
Hope this will be helpful.
If this post answers your question or helps, please kindly mark it as such.
Thanks,
Bhasker Chari

Flex bug in global error handling

My application's global error handler (uncaught error handler) works mostly, but I found a case where it doesn't work, but should. Before I filed an official bug report I wanted to post the issue here.
Here is the issue: in a module, ErrorEvents that are not listened for and are dispatched by a Flex component are never caught in the application's uncaught error handler.
I have a sample project that demonstrates this. Here is the module in my test case:
<?xml version="1.0" encoding="utf-8"?>
<s:Module xmlns:fx="http://ns.adobe.com/mxml/2009"
             xmlns:s="library://ns.adobe.com/flex/spark"
             xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
    <![CDATA[
        private function onClickSparkDispatch():void {
            dispatchEvent( new ErrorEvent( ErrorEvent.ERROR, false, false, "test" ) );   // this isn't caught in the uncaught error handler
        private function onClickNonSparkDispatch():void {
            var nonSparkDispatcher:EventDispatcher = new EventDispatcher();
            nonSparkDispatcher.dispatchEvent( new ErrorEvent( ErrorEvent.ERROR, false, false, "test" ) ); // this is caught in the uncaught error handler
    ]]>
</fx:Script>
    <s:HGroup>
        <s:Button label="Module Spark Dispatch (broken)" click="onClickSparkDispatch()" />
        <s:Button label="Module Non-Spark Dispatch" click="onClickNonSparkDispatch()" />
    </s:HGroup>
</s:Module>
Using Flex 4.6
My application statically links in the Flex SDK ("merged into code" in Flash Builder).
My applications works around these two exsiting bugs:
     https://bugs.adobe.com/jira/browse/SDK-28018
     http://blogs.adobe.com/aharui/2011/04/catching-uncaughterror-in-flex-modules.html
Is this a bug?
Thanks,
Rick

It’s been reported. Here is more information and a workaround. http://blogs.adobe.com/aharui/2011/04/catching-uncaughterror-in-flex-modules.html

Uncaught error handler (global error handling) not working in Chrome FP 10.1.103.22

A few days ago I very happily discovered the new global error handling available in flash-player (FP) 10.1
Now while all works well in Firefox (using Adobe's FP 10.1.102.64), nothing happens in Chrome (using Google's FP 10.1.103.22).
I can disable Google's FP using the "about:plugins" page in Chrome, restart the browser, and then everything works since the browser falls back to the other flash plugin installed, which is again Adobe's FP 10.1.102.64.
Is this a known bug?

Don't tell me the uncaught error handler only works for a debugger version....??
The documentation, which I read quite carefully, doesn't have a word on this. It suggests rather the opposite:
"When content is running in a debugger version of the runtime, such as the debugger version of Flash Player or the AIR Debug Launcher (ADL), an uncaught error dialog appears when an uncaught error happens. For those runtime versions, the error dialog appears even when a listener is registered for the uncaughtError event. To prevent the dialog from appearing in that situation, call the UncaughtErrorEvent object's preventDefault() method."

Global error handling

I need to make sure I am handling all (my code and SDKs) errors in my Flex application. What's a way of global error management in Flex? Thanks

Here is my code:
in main appication:
creationComplete="globalErrorHandler(event)"
protected function globalErrorHandler(event:Event):void
                                        systemManager.loaderInfo.uncaughtErrorEvents.addEventListener(UncaughtErrorEvent.UNCAUGHT _ERROR, onUncaughtError);
                                        systemManager.loaderInfo.addEventListener(IOErrorEvent.IO_ERROR, onUncaughtError);
                                        systemManager.loaderInfo.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onUncaughtError);
Somewhere at the run time I am generating an unhandled error. I see FP's popup error window and the same error goes into flashlog.txt, but I dont see it getting into onUncaughtError function. What am I doing wrong?
Thanks

Page Error handling question..

Using APEX 4.1.1.. Hosted instance.. I am testing various error handling functions (Oracle's standard one from documentation and others). I have a page with a standard report, I have defined the page to have an associated error handling function. On the report I have a calculated column that should error out due to a division by 0 error..
Now what I had thought was, the page would handle the error more gracefully than previous version, in that it would show the custom error message I define in the constraints table...
Is there a section of the documentation I am missing that shows at what point the error handling function kicks in and where we need to invoke it otherwise?
Thank you,
Tony Miller
Dallas, TX

Interesting. Had never considered this aspect.
Just did a couple of tests - so it must only come into play from the PL/SQL engine.
Created an sql report:
select floor(dbms_random.value(1,10))/0 num
from dual
connect by level <= 10But the error function never gets hit.
begin
for i in (select floor(dbms_random.value(1,10))/0 num
from dual
connect by level <= 10) loop
htp.p(i.num);
end loop;
end;Function gets hit.
Just looking at the docs, there doesn't appear to be any indication of processing point.
But from Patrick's blog:
This includes errors raised by validation, process, … and all errors raised by the Application Express engine itself.http://www.inside-oracle-apex.com/apex-4-1-error-handling-improvements-part-1/
I guess an SQL report isn't considered as an 'all errors raised by the apex engine'.

Apex 4.1 Error handling question

Apex 4.1
Hi There,
Just had a query regarding error handling. As per Apex documentation we can add more information to our error messages. I wanted to add custom text and also the actual Ora or any other message
E.g
begin
if 1=1 then
    l_error := 1/0;
end if;
exception
when others then
    APEX_ERROR.ADD_ERROR (
    p_message          => 'Error1',
    p_additional_info => 'Test1',
    p_display_location => apex_error.c_inline_in_notification);
end;Wanted to know, if we want to add the actual error message also, what do we need to add to the ADD_ERROR procedure? I wanted to record the sqlerrm message.
Thanks

The only problem with the example was I don't think it handles not null constraints real well. Usually have a constraint name like 'SYS_SOMENUMBER'. So as a result, the extract_constraint_name is not successful.
I handled this by doing the following:
if l_constraint_name IS NULL AND p_error.ora_sqlerrm IS NOT NULL THEN
     --NOT NULL constraints don't display the constraint name in the error, find another way
    --Added check for ora_sqlerrm as if there is a page validation, it still enters the function, but with no sqlerrm
        declare
            l_cons_split APEX_APPLICATION_GLOBAL.VC_ARR2;
            l_owner user_constraints.owner%type;
            l_table_name user_constraints.table_name%type;
            l_column_name user_cons_columns.column_name%type;
            l_table_column varchar2(400);
        BEGIN
            --get the section enclosed in parenthesis
            l_table_column := regexp_substr(p_error.ora_sqlerrm, '\([^)]*\)');
            --remove parenthesis and quotes
            l_table_column := regexp_replace(l_table_column, '[(")]');
            --split the data by period
            l_cons_split := apex_util.string_to_table(l_table_column, '.');
            --determine the constraint name by querying user_constraints
            l_table_name := l_cons_split(l_cons_split.COUNT-2);
            l_table_name := l_cons_split(l_cons_split.COUNT-1);
            l_column_name := l_cons_split(l_cons_split.COUNT);
            select uc.constraint_name into l_constraint_name
            from user_constraints uc, user_cons_columns ucc
            where uc.constraint_name = ucc.constraint_name
            and uc.owner = ucc.owner
            and uc.table_name = l_table_name
            and ucc.column_name = l_column_name
            and get_search_condition(uc.constraint_name, uc.owner) like '%IS NOT NULL%'; --gets the search condition as varchar
        END;
    END IF;{code}
That's slightly off topic, but just thought i'd mention it :)

General Labview Error Handler question discussion

Recently two functions were brought to my attention, the General Error Handler and the Simple Error handler.
And I cannot wrap my hand around these two features. While I have been using Labview I have always used the Labview error cluster. When would you use these two features? As I feel the cluster error is much help.
Maybe it is my defnition that I have confused:
The general error handler will display a dialogue box describing the error that will be passed and shuts down the code?
The simple error handler notifys the operator that an error has occured but it can be customized for adding functionality, it takes the error cluster input and determines if an error was generated. "If an error has been generated, the VI displays a dialog box with the error code, a brief description of the error, and the location of the error." How is this not the same as an error cluster?
If anyone has any simple code examples for this or knowledge I greatly appriciate it.
Caleb

Jacobson wrote:
Psireaper9 wrote:
The simple error handler notifys the operator that an error has occured but it can be customized for adding functionality, it takes the error cluster input and determines if an error was generated. "If an error has been generated, the VI displays a dialog box with the error code, a brief description of the error, and the location of the error." How is this not the same as an error cluster?
You are correct that they give the same information. The difference is that if you want to use an error cluster you will need an indicator on your front panel. If you use the simple error handler you won't have to have an error cluster on your front panel but the user will be notified if an error does occur.
Think about all the programs you normally use (excel, chrome, etc.). As a user you expect that errors aren't happening, and if errors do occur then the application will usually just close out and you get an error dialog about the error.
I use the simple error handler with no user interaction to extract the error text. Is there an easier way of doing that?

Fault and Error handling questions

Hi,
I have a few of questions regarding exception handling :
1. Where can I find documentation (i.e. details and when thrown) on all the Standard faults available with BPEL ie. those in
http://schemas.xmlsoap.org/ws/2003/03/business-process/" and
http://schemas.oracle.com/extension
2. Let's say I do not know in advance what specific fault to catch. I add a catchAll inside my scope. When catchAll triggers, I want to get the detail faultmessages of whatever fault caused the catchAll.
3. I want to use a message type from the RuntimeFault.wsdl in my project. Should I copy over the wsdl file to my project folder ? If I do not copy over and import it from it's location (integration/orabpel/system/xmllib), the console is failing runtime when I try to render the input page.
How can I do that ?
Thanks
Arindam

You can find the standard faults from the BPELspec
1.1.
In 10.1.2.0.2 (the latest released version), youcan
use some system xpath functions to extract thefault
information in <catchAll> block:
getFaultAsString( ) returns String
Or
getFaultName( ) returns QName as fault name.Hi Muruga,
Thanks for your reply.
Can you please also let me know :
1. what's the signature of these methods ?
2. I have 10.1.2.0.2 local version. However under
catchall -> assign -> xpath expression builder, I do
not see these 2 functions.
Can you please help.
ThanksHi Muruga,
I tried doing the following :
<faultHandlers>
<catch faultName="bpelx:bindingFault" faultVariable="bindingFaultVar">
<assign name="assignBindingFault">
<copy>
<from expression="concat(bpws:getVariableData('bindingFaultVar','code'),bpws:getVariableData('bindingFaultVar','summary'),bpws:getVariableData('bindingFaultVar','detail'))"/>
<to variable="outputVariable" part="payload" query="/ns1:TransmissionAck/ns1:StackTrace"/>
</copy>
</assign>
</catch>
<catchAll>
<assign name="assignCatchAll">
<copy>
<from expression=""Unexpected Error in the BPEL Process""/>
<to variable="outputVariable" part="payload" query="/ns1:TransmissionAck/ns1:TransmissionText"/>
</copy>
<copy>
<from expression="bpws:getFaultAsString()"/>
<to variable="outputVariable" part="payload" query="/ns1:TransmissionAck/ns1:StackTrace"/>
</copy>
</assign>
</catchAll>
</faultHandlers>
I got the following runtime error when an actual catchAll was caught :
[2006/02/24 17:09:36] "{http://schemas.oracle.com/bpel/extension}remoteFault" has been thrown. less
<remoteFault>
<part name="code" >
<code>17410</code>
</part>
<part name="summary" >
<summary>file:/C:/OraBPELPM_2/integration/orabpel/domains/default/tmp/.bpel_WshOtmSyncInboundShipment_19.0.jar/WSH_OTM_INBOUND_GRP.wsdl [ WSH_OTM_INBOUND_GRP_ptt::WSH_OTM_INBOUND_GRP(InputParameters,OutputParameters) ] - WSIF JCA Execute of operation 'WSH_OTM_INBOUND_GRP' failed due to: Error while converting to a Java array object. Unable to convert the XSD element P_INT_TRIP_INFO whose collection type is WSH_OTM_TRIP_TAB. Cause: java.sql.SQLException: No more data to read from socket ; nested exception is: ORABPEL-11801 Error while converting to a Java array object. Unable to convert the XSD element P_INT_TRIP_INFO whose collection type is WSH_OTM_TRIP_TAB. Cause: java.sql.SQLException: No more data to read from socket Check to ensure that the XML data describing the collection matches the definition of the array in the XSD. Contact oracle support if error is not fixable. </summary>
</part>
<part name="detail" >
<detail>No more data to read from socket</detail>
</part>
</remoteFault>
WS-T Complete
WS-T Close
WS-T Fault
WS-T Cancel
WS-T Compensate
</sequence>
<catchAll>
assignCatchAll (faulted)
[2006/02/24 17:09:36] Updated variable "outputVariable" less
<outputVariable>
<part name="payload" >
<TransmissionAck>
<EchoedTransmissionHeader>
<TransmissionHeader>
<UserName/>
<Password/>
</TransmissionHeader>
</EchoedTransmissionHeader>
<TransmissionAckStatus/>
<TransmissionAckReason/>
<StackTrace/>
<TransmissionText>Unexpected Error in the BPEL Process</TransmissionText>
</TransmissionAck>
</part>
</outputVariable>
[2006/02/24 17:09:37] "XPathException" has been thrown. less
XPath expression failed to execute.
Error while processing xpath expression, the expression is "bpws:getFaultAsString()", the reason is function "bpws:getFaultAsString" not registered.
Please verify the xpath query.
</catchAll>
WS-T Complete
WS-T Close
WS-T Fault
WS-T Cancel
WS-T Compensate
<scope>
WS-T Complete
WS-T Close
WS-T Fault
WS-T Cancel
WS-T Compensate
</sequence>
[2006/02/24 17:09:37] "XPathException" has not been caught by a catch block.
[2006/02/24 17:09:37] BPEL process instance "4503" cancelled
Can you please help.
Thanks

Simple Error Handling Question

I know that in general, when you are handling an error, you can either pass the back by adding a throws declaration to the method in question, or surround with try/catch and handle the error.
What do you do if you want the error to force the application to stop? Just send a simple output message and then stop.
Thx,
hqd

What do you do if you want the error to force the
application to stop? Just send a simple output
message and then stop.You should stop wanting that. If the code in method X
encounters an error it can't deal with, it should
throw that error to whoever calls it. It is the
responsibility of the caller to decide what to do,
not the responsibility of method X.But the buck has to stop somewhere. Are you saying that only the main method should ever stop a program?
Maybe this is one of the gaps in my understanding of good overall design, but it seems perfectly valid to me to have certain methods that, when they error, I know I always want my application to stop. Passing it along up the chain might involve adding a whole bunch of throws declarations.... why... just to say we have no methods that stop the application. Say this piece of code is not longer used in the spot that throws it's possible error up the chain.... now you have to remove all those throws.... isn't this ripple effect on our code bad design?
What am I missing?
Thanks,
hqd

HTTPService error handling question

When i am using HTTPService for Flex-PHP communication i set
HTTPService's 'fault' property which handles error event. So
basically if i have HTTPService set up like this:
<mx:HTTPService id="test" url="
http://localhost/test/test.php"
contentType="application/xml" useProxy="false" method="POST"
fault="httpServiceError(event)">
</mx:HTTPService>
Then 'httpServiceError' method is fired in case of
HTTPService error. What i would like to do in httpServiceError
method is trace the id of the failed HTTPService. I tried with:
public function httpServiceError(evt:FaultEvent):void{
trace(evt.currentTarget.id);
But soon realized that FaultEvent doesn't conatin
'currentTarget' property so this failed. What's the correct way to
find out id of the failed HTTPService?
thanks in advance,
best regards

Which version of flex are you on?
I'm not sure about version 2 but in Flex 3 fault event does
have currentTarget property. What do you get in the trace if you
just say event.currentTarget?
from the docs:
The FAULT event type.
The properties of the event object have the following values:
Property Value
bubbles false
cancelable true, calling preventDefault() from the associated
token's responder.fault method will prevent the service or
operation from dispatching this event
currentTarget The Object that defines the event listener that
handles the event. For example, if you use
myButton.addEventListener() to register an event listener, myButton
is the value of the currentTarget.
fault The Fault object that contains the details of what
caused this event.
message The Message associated with this event.
target The Object that dispatched the event; it is not always
the Object listening for the event. Use the currentTarget property
to always access the Object listening for the event.
token The token that represents the call to the method. Used
in the asynchronous completion token pattern.
ATTA

Global error handler

When ever I hit an error in my Flex app, I get a window
appear that shows the error and the call stack. What we really need
to do is capture that error, and instead of putting up a big window
with all the details, save the error details in our back-end
database and present the user with a reference number. Is there a
way to specify a handler for all errors in Flex 2.0?
Thanks,
Ed.

I asked about this a while ago in the Flexcoders list and was
met with complete silence. I'm thinking it's just not available
right now.

Error Handling Question

I am writing a java program which will run as an automated job. There won't be a user sitting there watching it. If it throws an exception where should I put it? Normally I do
catch (Exception e){
e.printStackTrace();
But that won't do any good if it's running automatically. How do I set System.err path?
Is there a way for me to print the stack trace into a log file?

You can use System.setErr() (or something like that).
Or you can use one of the other printStackTrace signatures--one takes a PrintStream arg, one takes a PrintWriter.
Or, when you run it from the command line, you can redirect stderr and stdout. In bourne shell family on Unix it's
java Whatever > /path/to/your/file 2>&1
Or you could use a logging package, such as what's built into Java (since 1.4 I think, maybe 1.3), and configure it to write to a file. or log4j. Personally I like log4j. If you use Jakarta Commons Logging package, you can write the logging calls without regard to which underlying logging system you use.
The last option is the best for any "real" production app, IMHO, but it also involves a bit of a learning curve, and if you've already got printStackTrace() all over your code, it means changing existing code.
¶

Error Handling - displaying Error on ALL error events

I am trying to set up a global error handling page error.cfm so that whenever any error at all occurs I can display my error.cfm page.
At first I tried the following in the application.cfm page, and then ran a page that tried to output a variable that did not exist, and it seemed to work:
<cferror type = "EXCEPTION" exception = "any" template = "error.cfm">
But then it just decided not to work, so I added these
<cferror type = "REQUEST" template = "error.cfm">
<cferror type = "VALIDATION" template = "error.cfm">
Is there a way to make sure that all errors are handled? Am I right in putting all 3 of these in the application.cfm or do I need more (or less?)
Thanks
Mark

It just didn't react to the error, by going to error.cfm, it just threw out the usual CF error as if I had not added CFERROR
With those 3 statements in there is seems to work, but I wanted to make sure that no matter what error occurs it's going to hit the error.cfm

Global error handling question.

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