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| Neemesh |
 Posted: Mon Dec 12, 2011 1:40 am Post subject: How to send message to diff destination of different host |
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Newbie
Joined: 12 Dec 2011
Posts: 5
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Hi All,
We are using websphere MQ in our application integrated with spring framework. We use to get the destination from the JMS message replytoqueue property.
We use to configure the host and other by using the application context property.
Till now in our application , the queueManger (Host) used to be same. But as per new requirement, the queueManger(host) will be different.
We are using jmsTemplate.send(queueDestination, new MessageCreator()...
to send the message back to the destination which we are getting from the replytoQueue of message property.
if i use this method now it will fail, as queue will not be present in the host specified by us. Is it any way to resolve this issue. |
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| zpat |
| Posted: Mon Dec 12, 2011 1:53 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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In standard MQI, when you MQOPEN the replytoqueue and replytoqueuemanager, if the queuemanager is not local - then what happens is that the xmit queue to that queue manager is opened instead.
In this way it is possible to open a remote queue for output - even when that queue does not exist on the local queue manager.
I presume JMS can also use this technique? |
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| Neemesh |
| Posted: Mon Dec 12, 2011 2:36 am Post subject: |
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Newbie
Joined: 12 Dec 2011
Posts: 5
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Thanks Zpat for your reply.
What we has done , we have set default queue manager in the application context and default queue is also there where we have to post the message.
This is when where replytoqueue is not there.
But whenever replyToQueue has some value, then if the queue which is mentioned in replyToQueue is present in that queueManger it will work fine.
But if this queue is not present in that queueManger then it will throw MQ error. ( this all i am talking using JMS and Spring FrameWork).
Do any one of you faced same issue, and how was the solution provided for this.... |
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| zpat |
| Posted: Mon Dec 12, 2011 5:26 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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You have to open the queue using the queue manager name you want it to go to, not the local one that does not hold the queue.
MQ cannot read your mind. How do you expect it to know what remote QM you want it to go to, unless you provide the name? |
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| Neemesh |
| Posted: Mon Dec 12, 2011 5:55 am Post subject: |
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Newbie
Joined: 12 Dec 2011
Posts: 5
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Thanks zpat for your reply.
I have declared the QueueManger details in ApplicationContext and I am generating jmsTemplate based on the request.
But problem is that if a new queue is present in the ReplyToQueue property of the Message, which does not belong to both the queueManager then again it will fail.
So my query was is it possible to send message to destination specified by replyToQueue property of the Message with out adding the queueManager details in our ApplicationContext again and again. |
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| zpat |
| Posted: Mon Dec 12, 2011 6:46 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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I have told you how the MQI works. All you now have to do is work out how (or whether) JMS can map to this.
The QM used for MQCONN does not have to be the same queue manager used for the MQOPEN.
A program can connect to QM A, it can then open an output queue belonging to QM B. This results in MQ putting the message on the xmit queue which does to QM B.
I have deliberately avoided using JMS terminology - you first need to understand the underlying MQI that is being used (and because I don't really know JMS). But a session corresponds to MQOPEN.
| Quote: |
To create a Queue object, an application can use the MQQueue constructor, as shown in the following example:
MQQueue q1 = new MQQueue("Q1");
This statement creates an MQQueue object with the default values for all its properties. The object represents a WebSphere MQ queue called Q1 that belongs to the local queue manager. This queue can be a local queue, an alias queue, or a remote queue definition.
An alternative form of the MQQueue constructor has two parameters, as shown in the following example:
MQQueue q2 = new MQQueue("QM2", "Q2");
The MQQueue object created by this statement represents a WebSphere MQ queue called Q2 that is owned by queue manager QM2. The queue manager identified in this way can be the local queue manager or a remote queue manager. If it is a remote queue manager, WebSphere MQ must be configured so that, when the application sends a message to this destination, Websphere MQ can route the message from the local queue manager to the remote queue manager. The MQQueue constructor can also accept a queue uniform resource identifier |
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| Vitor |
| Posted: Mon Dec 12, 2011 7:12 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Neemesh wrote: |
| So my query was is it possible to send message to destination specified by replyToQueue property of the Message with out adding the queueManager details in our ApplicationContext again and again. |
Accepting that I probably know less about JMS than my worthy associate, isn't it just as simple as creating a JMSQueue object with a Destination URI that includes both the reply to queue manager and queue name? By doing that the name resolution will occur as described in this thread and you're away.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| mqjeff |
| Posted: Mon Dec 12, 2011 7:38 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| Vitor wrote: |
| Neemesh wrote: |
| So my query was is it possible to send message to destination specified by replyToQueue property of the Message with out adding the queueManager details in our ApplicationContext again and again. |
Accepting that I probably know less about JMS than my worthy associate, isn't it just as simple as creating a JMSQueue object with a Destination URI that includes both the reply to queue manager and queue name? By doing that the name resolution will occur as described in this thread and you're away. |
EDITED TO ADD:
You don't even necessarily have to specify the Remote queue manager name, if the queue name is resolvable via normal MQ means to point to a remote queue manager. |
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| Vitor |
| Posted: Mon Dec 12, 2011 7:42 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| mqjeff wrote: |
| Vitor wrote: |
| Neemesh wrote: |
| So my query was is it possible to send message to destination specified by replyToQueue property of the Message with out adding the queueManager details in our ApplicationContext again and again. |
Accepting that I probably know less about JMS than my worthy associate, isn't it just as simple as creating a JMSQueue object with a Destination URI that includes both the reply to queue manager and queue name? By doing that the name resolution will occur as described in this thread and you're away. |
EDITED TO ADD:
You don't even necessarily have to specify the Remote queue manager name, if the queue name is resolvable via normal MQ means to point to a remote queue manager. |
I was picturing a scenario where the reply to queue is a temp dynamic on another queue manager which is typically tricky to resolve locally.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Neemesh |
| Posted: Mon Dec 12, 2011 10:59 pm Post subject: |
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Newbie
Joined: 12 Dec 2011
Posts: 5
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Thanks mqjeff for your reply,
Can you please provide more information or code snippet which will help me doing some code change from my side.
Thanks in advance... |
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| zpat |
| Posted: Mon Dec 12, 2011 11:12 pm Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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Do you have trouble reading?
MQQueue q2 = new MQQueue("QM2", "Q2");
Is the way to code it, or use a remote queue definition on the local queue manager.
RTFM. Short of getting on a plane and doing your job for you.....
This forum provides good pointers on how it might be done - the rest is up to you - have you heard of the Infocenter?
You can't expect complete answers - that's like cheating in an exam, and it does not help anyone in the long run. |
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| fjb_saper |
| Posted: Tue Dec 13, 2011 6:12 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| zpat wrote: |
Do you have trouble reading?
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| Neemesh wrote: |
| We are using jmsTemplate.send(queueDestination, new MessageCreator()... |
I think what Neemesh is looking for is the Destination definition.
Typically you would retrieve your Destination from JNDI and then all is defined there...
However you can also define it programmatically:
| Code: |
session.createQueue("QUEUENAME");
//or be more specific with
session.createQueue("queue://QMGRNAME/QUEUENAME?attrib1=val1&attribn=valn"); |
Hope this answers your question 
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| Neemesh |
| Posted: Wed Dec 14, 2011 3:47 am Post subject: |
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Newbie
Joined: 12 Dec 2011
Posts: 5
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| Thanks zpat & fjb_saper for your info |
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