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| garyprmr |
 Posted: Tue Sep 14, 2010 10:04 pm Post subject: MQ in leagcy and JMS compliant mode |
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Acolyte
Joined: 03 Sep 2005
Posts: 74
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Hello Techies ,
Any inputs on this note please
Websphere MQ has the limitation that its support for message properties is complete ONLY in JMS compliant mode. MQ has two modes - legacy/native mode and a JMS compliant mode. The difference between these two modes lies in the presence of an extra MQ message header - the MQRFH2 header - that is present in JMS compliant messages. (Please see references). Without this header, an MQ message cannot support custom JMS message properties.
I am not aware of something MQ in leagcy and JMS compliant we are running MQ ver 6 |
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| mqjeff |
| Posted: Wed Sep 15, 2010 12:55 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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A JMS message is not the same as a native MQ message.
There exists a standard mapping between JMS messages and MQ messages. This mapping is documented, and is handled by the MQ JMS provider.
If you actually have a question, rather than a series of statements, it is not at all clear what that question is. |
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| garyprmr |
| Posted: Wed Sep 15, 2010 5:34 am Post subject: |
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Acolyte
Joined: 03 Sep 2005
Posts: 74
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Hello Jeff ,
Thanks for the the reply and to make it short
JMS compliant mode- We have installed MQ ver 6 . I hope by default it can talk to the SAPXI which is using some JMS stuff .
I dont think we need any change on the MQ end for that .I think whatever we have installed is JMS compliant ?
Or it lies with the SAP XI adapter to use that JMS porvider is there something we need to do from MQ admin end.
I have yet to read the provide stuff you told. Will catch on it later in the day. |
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| fjb_saper |
| Posted: Wed Sep 15, 2010 12:03 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| garyprmr wrote: |
Hello Jeff ,
Thanks for the the reply and to make it short
JMS compliant mode- We have installed MQ ver 6 . I hope by default it can talk to the SAPXI which is using some JMS stuff .
I dont think we need any change on the MQ end for that .I think whatever we have installed is JMS compliant ?
Or it lies with the SAP XI adapter to use that JMS porvider is there something we need to do from MQ admin end.
I have yet to read the provide stuff you told. Will catch on it later in the day. |
You have to decide whether your messages are slotted for a JMS app as destination or a non JMS app as destination. As specified above the JMS user defined message properties are stored in the RFH header. If your destination is non JMS destination (see targetClient property of the destination), you will loose those user defined message properties.
System defined properties are mapped as specified in the Using Java manual.
Have fun 
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| sunny_30 |
| Posted: Thu Sep 30, 2010 7:52 am Post subject: |
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Master
Joined: 03 Oct 2005
Posts: 258
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Hi
We have a similar requirement to communicate between mq & sap-jms queue objects
The idea is that sap pi/xi picks up messages from its local sap-netweaver-webas-jms queues, not MQ queues
My question is w/o using some kind of broker to transform messages from mq to jms format, is it possible to point mq remote queues (in some mode) directly to sap-jms queue objects?
please help
thx in advance |
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| fjb_saper |
| Posted: Thu Sep 30, 2010 12:34 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| sunny_30 wrote: |
Hi
We have a similar requirement to communicate between mq & sap-jms queue objects
The idea is that sap pi/xi picks up messages from its local sap-netweaver-webas-jms queues, not MQ queues
My question is w/o using some kind of broker to transform messages from mq to jms format, is it possible to point mq remote queues (in some mode) directly to sap-jms queue objects?
please help
thx in advance |
You still need a JMS to JMS bridge.
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| sunny_30 |
| Posted: Thu Sep 30, 2010 1:23 pm Post subject: |
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Master
Joined: 03 Oct 2005
Posts: 258
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HI Saper,
Thanks for your reply
By "bridge"- do you mean some external program that maps between SAP-JMS & MQ headers ? Can you plz elaborate ..?
I know a scenario where a remoteQ in MQ could directly connect to integrated MQ/JMS in WAS-SIB with no problem
For current project, Im asked to research into connecting MQ queues/channels directly with SAP-JMS objects w/o involving Broker or any ext bridge...
I knew this wdnt be possible but needed to confirm to my peers what the exact technical restraints are to do so....  Their assumption is both MQ & SAP-PI messagings are JMS compliant, so why not .. |
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| bruce2359 |
| Posted: Thu Sep 30, 2010 1:33 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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IBM has an SAP-R3 MQ Link product. Is that what you are looking for? If so, go to ibm.com and search for Link for SAP R/3.
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I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| sunny_30 |
| Posted: Thu Sep 30, 2010 2:32 pm Post subject: |
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Master
Joined: 03 Oct 2005
Posts: 258
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Hi Bruce.. its actually like this..
my client has two datacenters (DCs)..
they'd like to keep 1 DC (new) as a pure sap-PI shop.... no IBM products.... not even MQ
but still wd like to communicate to servers in remote DC (call it legacy .. ) using MQ over WAN.... |
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| fjb_saper |
| Posted: Thu Sep 30, 2010 6:58 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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You have to ask the SAP XI guys if you can use a foreign (non SAP) JMS provider. You then need to set MQ up as being that foreign JMS provider.
In this case no need for a JMS bridge. But if you are going from SAP JMS to MQ JMS you need a JMS to JMS bridge.
@bruce2359 nice alternative talking about the MQ-Link for R3 or for that matter about the SAP adapter of WMB...
These use the BAPI and IDOC technologies. The SAP team will have to evaluate the suitability of this technology for their purpose.
Have fun
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| IvanPetroff |
| Posted: Sat Jan 07, 2012 9:26 pm Post subject: |
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Newbie
Joined: 07 Jan 2012
Posts: 7
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| mqjeff wrote: |
A JMS message is not the same as a native MQ message.
There exists a standard mapping between JMS messages and MQ messages. This mapping is documented, and is handled by the MQ JMS provider.
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Hi guys,
I have a question about the mapping b/w native JMS message and MQ JMS message. As far as I understand the MQ JMS provider automatically makes this mapping or I am wrong? In my scenario I am using WebSphere v6.0.21 + WebSphere Client on the same machine. The testing client application is developed with the standard JMS API and to connect to the MQ I'm using client connection mode. I can put a message to the queue and I can get a message as well but I am wondering whether I need to use some JMS to MQ and MQ to JMS bridge or this mapping is handled by the MQ JMS provider?
Thanks and Regards |
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| zpat |
| Posted: Sat Jan 07, 2012 11:22 pm Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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| Use NONJMS as the target. |
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| fjb_saper |
| Posted: Sun Jan 08, 2012 6:11 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Better yet, go to MQ V 7.x and you will be able to support the properties natively. (no more need for the RFH header).
Have fun
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| IvanPetroff |
| Posted: Sun Jan 08, 2012 9:22 am Post subject: |
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Newbie
Joined: 07 Jan 2012
Posts: 7
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Hi zpat and fjb_saper,
First of all thanks for the replies
| fjb_saper wrote: |
Better yet, go to MQ V 7.x and you will be able to support the properties natively. (no more need for the RFH header).
Have fun |
That is impossible, because the customer cannot upgrade their system.
| zpat wrote: |
| Use NONJMS as the target. |
I changed my code as follow:
1.// strip off the JMS header
MQDestination.setTargetClient(JMSC.MQJMS_CLIENT_NONJMS_MQ)
2.//Do not construct the RFH2 header in case of using Replay-To header
MQConnectionFactory.setTargetClientMatching(true)
The code works fine for me, but I am not an IBM specialist. Do you thing that these changes are enough to exchange messages between native JMS and MQ JMS or i should do some more settings?
Once again, thanks for the help!
And one more question -
Is there any special encoding like UTF-8 that I have to set explicitly? |
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| fjb_saper |
| Posted: Sun Jan 08, 2012 9:36 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| IvanPetroff wrote: |
And one more question -
Is there any special encoding like UTF-8 that I have to set explicitly? |
You want to set the CCSID on the connection factory to 1208 (UTF-8 )
Have fun
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