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MQSeries.net Forum Index » IBM MQ Java / JMS » MQ setting CCSID and Encoding

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jejo
PostPosted: Tue Feb 08, 2011 9:58 pm    Post subject: MQ setting CCSID and Encoding Reply with quote

Newbie

Joined: 30 Jan 2011
Posts: 9

Hi everyone!
My Requirement says that message needs CCSID and encoding to be set in Properties and MQMD.

I'm using clientconnection with mQ and sending message to the Queue with setting CCSID =500 and encoding as 273, This setting I did in MQMessage level.
I'm able to send the message to MQ, but the client who is using that message says that the message is not in proper format in which he is expected..

I've set it in MQMessage, Is this enough or I need to add something MQenvironment.

Since I'm new to MQ I'm not sure where I'm missing...
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Mr Butcher
PostPosted: Tue Feb 08, 2011 11:28 pm    Post subject: Reply with quote

Padawan

Joined: 23 May 2005
Posts: 1716

if the ccsid and encoding you are setting are right and match the message content then the consumer of the message should be fine ... ?!?
maybe the consumer should use get-convert? what is he expecting that he does not find?
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jejo
PostPosted: Wed Feb 09, 2011 12:46 am    Post subject: Reply with quote

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Joined: 30 Jan 2011
Posts: 9

What's happening here is , Earlier there used to be a message broker between the queue and our end, which did the operation of applying CCSID and encoding to the message which is understood by the Consumer.

Now what we are trying to do is Bypass the message broker and instead setting ccsid and encoding from our Java code itself..

hope u understand the scenario..
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fatherjack
PostPosted: Wed Feb 09, 2011 2:04 am    Post subject: Reply with quote

Knight

Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island

And your Java client is connecting to a mainframe QMGR?
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jejo
PostPosted: Wed Feb 09, 2011 2:23 am    Post subject: Reply with quote

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Joined: 30 Jan 2011
Posts: 9

MQ is running in AS/ 400
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fatherjack
PostPosted: Wed Feb 09, 2011 2:29 am    Post subject: Reply with quote

Knight

Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island

As Mr Butcher asked, is the consumer doing a MQGET with CONVERT? Is the format set to MQSTR?
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jejo
PostPosted: Wed Feb 09, 2011 2:45 am    Post subject: Reply with quote

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Joined: 30 Jan 2011
Posts: 9

Actually the consumer is mapping the message directly to a table and We don't know exactly what's happening at the consumer since it's a 3rd party level.


As i said in my previous post, when the message is sent through MessageBroker(Where Conversion happens) the consumer able to get the message properly from the queue. the properly arises only when we set encoding and ccsid at the JAVa code and bypass the message broker.

The following is the code which we are using,

Code:

putMsgOptions=new MQPutMessageOptions();
putMsgOptions.options = putMsgOptions.options + MQC.MQMO_MATCH_CORREL_ID+MQC.MQPMO_SYNCPOINT+MQC.MQGMO_CONVERT;;
msg.characterSet = ccsidInt;      
      msg.encoding = encodingInt;
      msg.format = MQC.MQFMT_STRING;
      msg.messageType = MQC.MQMT_REQUEST;
      msg.writeString(buffer.toString());      
      sendQueue.put(msg,putMsgOptions);
      queueManager.commit();
      sendQueue.close();
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mqjeff
PostPosted: Wed Feb 09, 2011 4:17 am    Post subject: Reply with quote

Grand Master

Joined: 25 Jun 2008
Posts: 17447

Is the buffer that you are toString-ing and writeString-ing actually *in* the CCSID you are setting?
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fatherjack
PostPosted: Wed Feb 09, 2011 4:42 am    Post subject: Reply with quote

Knight

Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island

jejo wrote:
Code:

putMsgOptions=new MQPutMessageOptions();
putMsgOptions.options = putMsgOptions.options + MQC.MQMO_MATCH_CORREL_ID+MQC.MQPMO_SYNCPOINT+MQC.MQGMO_CONVERT;


Is that really what you want? Adding get message options to put message options?
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jejo
PostPosted: Wed Feb 09, 2011 4:45 am    Post subject: Reply with quote

Newbie

Joined: 30 Jan 2011
Posts: 9

Converting from StringBuffer to String and WritingString with CCSID


Sorry My Actual code for putMessageOptions is the following..
Code:
putMsgOptions = new MQPutMessageOptions(); // Set Put Options
        int newReqMsgId = MQC.MQMO_MATCH_CORREL_ID;
        putMsgOptions.options = putMsgOptions.options + newReqMsgId;
        putMsgOptions.options = putMsgOptions.options + MQC.MQPMO_SYNCPOINT;
        putMsgOptions.options = putMsgOptions.options + MQC.MQGMO_CONVERT;
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jejo
PostPosted: Wed Feb 09, 2011 5:03 am    Post subject: Reply with quote

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Joined: 30 Jan 2011
Posts: 9

Am I following correct method in the putMessageOptions?
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mqjeff
PostPosted: Wed Feb 09, 2011 5:54 am    Post subject: Reply with quote

Grand Master

Joined: 25 Jun 2008
Posts: 17447

jejo wrote:
Converting from StringBuffer to String and WritingString with CCSID


Are the characters in the StringBuffer actually in the same CCSID that you are applying to the message properties?

If you have constructed a Unicode string buffer and are telling MQ that it is an EBCDIC string, you will have problems trying to read it.
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fatherjack
PostPosted: Wed Feb 09, 2011 8:06 am    Post subject: Reply with quote

Knight

Joined: 14 Apr 2010
Posts: 522
Location: Craggy Island

jejo wrote:
Am I following correct method in the putMessageOptions?


I'm no java guru so won't comment on the 'method'. But you appear to be adding options to the putMessageOptions that are not appropriate. E.g. MQGMO_CONVERT is a getMessageOption. Now I'm sure the hex value of that constant has some meaning to putMessageOptions but it is unlikely to be what you expect. Therefore you may well experience behaviour that you were not anticipating.

Having said that, I suspect this particular problem is more likely to be as a result of what mqjeff is suggesting.
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rekarm01
PostPosted: Sat Feb 12, 2011 12:30 pm    Post subject: Re: MQ setting CCSID and Encoding Reply with quote

Grand Master

Joined: 25 Jun 2008
Posts: 1415

jejo wrote:
My Requirement says that message needs CCSID and encoding to be set in Properties and MQMD.

'Properties' headers exist within a WMB message tree, but not within a WMQ message.

jejo wrote:
I'm able to send the message to MQ, but the client who is using that message says that the message is not in proper format in which he is expected.

That's not enough information to go on. Describe in more detail the difference between the actual and expected message. Browsing utilities, such as sample program amqsbcg0, support pack IH03 - (rfhutil), or support pack MO71 - (WMQ GUI Admin tool), are useful for inspecting the message headers and data for character conversion problems.

jejo wrote:
Am I following correct method in the putMessageOptions?

No. Neither MQMO_MATCH_CORREL_ID nor MQGMO_CONVERT are appropriate put message options.
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fjb_saper
PostPosted: Sat Feb 12, 2011 3:38 pm    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20696
Location: LI,NY

Also if you need to transform the CCSID on put for a message of MQFMT_STRING format, Java base requires more coding than JMS.
  • In JMS, just set the desired CCSID on the destination and send the TextMessage as you would normally do.
  • In Java base you need to make sure that the bitstream you write to the message is in the proper CCSID and then set the CCSID on the message before putting it.


Note: The assumption here is that the qmgr would know how to transform a text message from one CCSID into the other. If not you will have to look into the conversion tables and maybe build your own.

Have fun
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