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Message
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| yellowbee |
 Posted: Fri Apr 27, 2012 12:15 am Post subject: output message is not coming as expected |
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Acolyte
Joined: 14 Apr 2012
Posts: 58
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As per the fallowing code the output message should be a 5 character data,while debugging it is showing the output as expected but in the target queue the output is same as input message.Why the Output message in target queue is not coming as expected.
DECLARE Text BLOB;
DECLARE Out CHARACTER;
SET Text = SUBSTRING(InputRoot.BLOB.BLOB FROM 5 FOR 5);
SET Out = CAST(Text As CHARACTER CCSID 1208);
SET OutputRoot.BLOB.test = Out; |
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| Esa |
| Posted: Fri Apr 27, 2012 12:38 am Post subject: |
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Grand Master
Joined: 22 May 2008
Posts: 1387
Location: Finland
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Your code is probably copying the input message into output message. The part of the code you did not post.
The code you posted is rubbish and obviously produces no output at all. So what remains in the output message is the copy of the input message.
You should read in the InfoCenter about BLOB domain and CAST function (for a start). There are examples. |
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| kimbert |
| Posted: Fri Apr 27, 2012 1:01 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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Esa is correct - you seem to confused about several things. But I don't know whether the InfoCenter will help - some of your confusion probably comes from a basic misunderstanding of the WMB programming model.
Try this: Take your snippet of ESQL and add a comment to every line explaining
- what data ( syntax element or variable ) it creates/changes
- the data type of the syntax element/variable
- the data type of the data that is being assigned to it
If you get stuck AND you cannot find the answer in the InfoCenter then post a question on this thread. |
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| Esa |
| Posted: Fri Apr 27, 2012 1:24 am Post subject: |
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Grand Master
Joined: 22 May 2008
Posts: 1387
Location: Finland
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| Wow, I have a lot to learn from kimbert in the art of nice and friendly replies... |
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| kimbert |
| Posted: Fri Apr 27, 2012 1:32 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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| Esa: You would not need to search very hard to find replies ( by both you and me ) that give the opposite impression. But thanks, anyway. |
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| mqjeff |
| Posted: Fri Apr 27, 2012 3:37 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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You should also spend some time looking at the compute node that hosts your code, and make sure you understand each and every property that has been set on that node.
And by understand I mean "know what the choices available are, and know why a specific choice has been made". |
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| yellowbee |
| Posted: Fri Apr 27, 2012 2:53 pm Post subject: |
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Acolyte
Joined: 14 Apr 2012
Posts: 58
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sure jeff long way to go...................
for the above code if the input message is aabbccddee
while debugging the above message in debug mode the output message text is =ccdde
but the message in the target queue aabbccddee instead of ccdde
masters let me know the cause if you find any.................... |
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| fjb_saper |
| Posted: Fri Apr 27, 2012 10:56 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Think about this line:
| Code: |
| SET OutputRoot.BLOB.test |
and it's meaning and why it does not have any meaning!
Have fun 
_________________
MQ & Broker admin |
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| Vitor |
| Posted: Sat Apr 28, 2012 3:47 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| yellowbee wrote: |
| while debugging the above message in debug mode the output message text is =ccdde |
The debugger doesn't always tell the story. A user trace (with judicious Trace node often helps.
| yellowbee wrote: |
| masters let me know the cause if you find any.................... |
Possible causes:
Your lack of understanding regarding the product
Your inablity to read the advice being posted (on this and your other thread)
Your lack of adequate problem solving methodolgy
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| mqjeff |
| Posted: Sat Apr 28, 2012 5:48 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| yellowbee wrote: |
sure jeff long way to go...................
for the above code if the input message is aabbccddee
while debugging the above message in debug mode the output message text is =ccdde
but the message in the target queue aabbccddee instead of ccdde
masters let me know the cause if you find any.................... |
The cause is that you have failed to understand the properties of the compute node.
You will make absolutely no progress on your journey to being competent as a message broker developer until you take the time to learn this. |
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| yellowbee |
| Posted: Sun Apr 29, 2012 8:44 am Post subject: |
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Acolyte
Joined: 14 Apr 2012
Posts: 58
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Hi masters..
here it is
CALL CopyMessageHeaders();
-- CALL CopyEntireMessage();
DECLARE MAIN CHARACTER;
DECLARE SUBSTR1,SUBSTR2 BLOB;
SET SUBSTR1= InputRoot.BLOB.BLOB;
SET SUBSTR2 = SUBSTRING(SUBSTR1 FROM 5 FOR 5);
SET MAIN = CAST(SUBSTR2 AS CHARACTER CCSID 1208);
SET OutputRoot.XML.DATA = MAIN;
for the above code if give the input message as :- AABBCCDDEE,The output message is:- CCDDE
For this code if we put CALL CopyEntireMessage();,why the output message is same as input message
-----------------------------------------
CALL CopyMessageHeaders();
-- CALL CopyEntireMessage();
DECLARE MAIN CHARACTER;
DECLARE SUBSTR1,SUBSTR2 BLOB;
SET SUBSTR1= InputRoot.BLOB.BLOB;
SET SUBSTR2 = SUBSTRING(SUBSTR1 FROM 5 FOR 5);
SET MAIN = CAST(SUBSTR2 AS CHARACTER CCSID 1208);
SET OutputRoot.BLOB.BLOB = MAIN;
For this code why it is throwing wrong type exception,when giving input message as:- AABBCCDDEE |
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| smdavies99 |
| Posted: Sun Apr 29, 2012 10:23 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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| yellowbee wrote: |
For this code why it is throwing wrong type exception,when giving input message as:- AABBCCDDEE |
What is the exception that is thrown that is wrong?
What were you expecting?
Also,
Please encase the code you post in CODE tags. There is a nice list of tags above the box there your type you post
_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| yellowbee |
| Posted: Sun Apr 29, 2012 11:11 am Post subject: |
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Acolyte
Joined: 14 Apr 2012
Posts: 58
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Exception:- Wrong type exception
when putting The input message :- AABBCCDDEE
to this code..... SET OutputRoot.XML.DATA = MAIN;
The output is :- <DATA> CCDDE</DATA>
But when putting the same message for this code.....
......SET OutputRoot.BLOB.BLOB = MAIN;...
it is throwing exception....
I want to know that why it is throwing exception,when ..MAIN.. is assigned
As BLOB DATA,while it is accepting BLOB data as Input message. |
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| smdavies99 |
| Posted: Sun Apr 29, 2012 11:39 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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So,
| Code: |
SET OutputRoot.XML.DATA = MAIN;
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Works
whereas,
| Code: |
SET OutputRoot.BLOB.BLOB = MAIN;
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Is throwing an error.
1) you should not be using the XML domain. It is deprecated. Please use the XMLNSC domain instead.
2) The Datatype of MAIN is what?
What happens when you
| Code: |
SET OutputRoot.BLOB.BLOB = SUBSTR2;
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_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| fjb_saper |
| Posted: Sun Apr 29, 2012 1:10 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| yellowbee wrote: |
| Code: |
CALL CopyMessageHeaders();
-- CALL CopyEntireMessage();
DECLARE MAIN CHARACTER;
DECLARE SUBSTR1,SUBSTR2 BLOB;
SET SUBSTR1= InputRoot.BLOB.BLOB;
SET SUBSTR2 = SUBSTRING(SUBSTR1 FROM 5 FOR 5);
SET MAIN = CAST(SUBSTR2 AS CHARACTER CCSID 1208);
SET OutputRoot.BLOB.BLOB = MAIN; |
For this code why it is throwing wrong type exception,when giving input message as:- AABBCCDDEE |
Well why are you asking? It is plain in your code: a CHARACTER type is what you have in MAIN and you assign it to BLOB without casting to BLOB?
Have fun
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MQ & Broker admin |
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