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December 11th, 2011 06:00

trigger an EBR event multiple times

Hi,

I'm doing some experiments with JCasScript aorund EBR and I'm seeing some strange results.

- create a clip:

CASScript>clipNew testebr

Clip Properties:

    Name:                testebr

    Creation Date:       2011.12.11 02:03:33 GMT

    Size:                0

    Number of Tags:      0

    Number of Blobs:     0

    Retention Class:    

    Retention Seconds:   -2

    Modified:            True

    EBR Enabled :        False

- enable EBR with a period:

CASScript>clipEnableEBRWithPeriod 12345

Clip Properties:

    Name:                testebr

    Creation Date:       2011.12.11 02:03:33 GMT

    Size:                0

    Number of Tags:      0

    Number of Blobs:     0

    Retention Class:    

    Retention Seconds:   0

    Modified:            True

    EBR Enabled :        True

    EBR Event Triggered: False

    EBR Period :         12345

    EBR Class :         

- So far so good. Now we write the clip:

CASScript>clipWrite

New Clip ID: FOJ60QNJ8GNHQe3HA8CSOC64KQRG416GMN20LI0S8L5295OG6B5VJ

- and we trigger an EBR event:

CASScript>clipTriggerEBR

Clip Properties:

    Name:                testebr

    Creation Date:       2011.12.11 02:03:33 GMT

    Size:                0

    Number of Tags:      0

    Number of Blobs:     0

    Retention Class:    

    Retention Seconds:   0

    Modified:            False

    EBR Enabled :        True

    EBR Event Triggered: True

    EBR Event Time :     2011.12.11 02:05:39 GMT

    EBR Period :         12345

    EBR Class :   

(so, EBR event triggered == true).

- we try to do that again:

CASScript>clipTriggerEBR

SDK Error Occurred:

     Error Number: -10160

     System Error: 0

     Error:        FP_EBR_OVERRIDE_ERR

     Error Class:  Server Error

     Trace:        FPClipTree::TriggerEBREvent(-)

This is as expected, and a described in the spec.

However, if we close the clip, and open it again:

CASScript>clipOpen C441HTBGDFJNNe5TJLD3Q273B0UG416GMLTO6I0B9K4VP7NNQ3RUO

Clip Properties:

    Name:                test2

    Creation Date:       2011.12.11 01:44:20 GMT

    Size:                0

    Number of Tags:      0

    Number of Blobs:     0

    Retention Class:    

    Retention Seconds:   0

    Modified:            False

    EBR Enabled :        True

    EBR Event Triggered: False

    EBR Period :         12345

    EBR Class :         

'EBR event triggered' has gone to 'false' again. So, let's try to trigger it again:

CASScript>clipTriggerEBR

Clip Properties:

    Name:                test2

    Creation Date:       2011.12.11 01:44:20 GMT

    Size:                0

    Number of Tags:      0

    Number of Blobs:     0

    Retention Class:    

    Retention Seconds:   0

    Modified:            False

    EBR Enabled :        True

    EBR Event Triggered: True

    EBR Event Time :     2011.12.11 02:08:22 GMT

    EBR Period :         12345

    EBR Class :

And it worked, contradicting the spec:

An EBR event can be triggered only once. If an attempt is made to

trigger the event multiple times, the call returns the

FP_EBR_OVERRIDE_ERR error.

Also, the EBR event time has changed.

Am I interpreting the spec wrongly, is it a problem in JCasScript, ... ?

Tx,

Kim

409 Posts

December 28th, 2011 08:00

after you trigger the event are you doing a clip write to save the state of the clip i.e. that the event has been triggered?  I think that is the step you are missing

41 Posts

December 29th, 2011 01:00

After I have triggered the EBR event, the state of the clip indicates that it's not modified:

From my post:

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

- and we trigger an EBR event:

CASScript>clipTriggerEBR

Clip Properties:

    Name:                testebr

    Creation Date:       2011.12.11 02:03:33 GMT

    Size:                0

    Number of Tags:      0

    Number of Blobs:     0

    Retention Class:    

    Retention Seconds:   0

    Modified:            False

    EBR Enabled :        True

    EBR Event Triggered: True

    EBR Event Time :     2011.12.11 02:05:39 GMT

    EBR Period :         12345

    EBR Class :   

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

So I had the impression that I didn't had to write the clip again since the clip itself is not modified. I'll try the scenario again, including writing the clip after the EBR trigger to see if that solves my problem.

Regards,

Kim

41 Posts

January 15th, 2012 02:00

writing the clip again solved the problem. tx.

Kim

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