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Message
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| Rajat |
 Posted: Mon Jul 09, 2012 3:45 am Post subject: MIME + XML in HTTP Request node |
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Novice
Joined: 26 Nov 2009
Posts: 15
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Hello Guys,
I have a requirement where I need to expose a service(single URL) which can accept both MIME and XML messages i.e either we will receive a XML or MIME.
Example : Document service, where you can receive a insert document request(MIME) or search document request(XML). This needs to be exposed via same URL.
Input(MIME) -> INSERT -> Output(XML)
Input(XML) ->SEARCH -> Output(XML)
Input(XML) -> RETREIVE -> Output(MIME)
Thanks in advance |
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| lancelotlinc |
| Posted: Mon Jul 09, 2012 5:00 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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Thats a great requirement. Let us know how you implement it. Should be very easy with WebSphere Message Broker.
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| Rajat |
| Posted: Mon Jul 09, 2012 5:11 am Post subject: |
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Novice
Joined: 26 Nov 2009
Posts: 15
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| Actually I have to implement in Message Broker only. Could you suggest what are the possible ways of doing it. I am really sorry If I am asking something very basic. |
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| Vitor |
| Posted: Mon Jul 09, 2012 5:15 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Rajat wrote: |
| Could you suggest what are the possible ways of doing it. |
I'd suggest writing a message flow.
| Rajat wrote: |
| I am really sorry If I am asking something very basic. |
It's so basic I don't understand the problem. You're receiving something via a URL (http or SOAP). You process this and output a result. And? 
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Honesty is the best policy.
Insanity is the best defence. |
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| lancelotlinc |
| Posted: Mon Jul 09, 2012 5:21 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| Rajat |
| Posted: Mon Jul 09, 2012 5:22 am Post subject: |
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Novice
Joined: 26 Nov 2009
Posts: 15
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I want to use a HttpInputNode but if I configure it for MIME then it is not parsing just XML messages and as explained above I have requirement like this
Input(MIME) -> INSERT -> Output(XML)
Input(XML) -> SEARCH-> Output(XML)
Input(XML) -> RETREIVE -> Output(MIME)
Hope this makes more sense. Please let me know If I am still not clear. |
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| lancelotlinc |
| Posted: Mon Jul 09, 2012 5:41 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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Have you attended the training class? have you read the InfoCentre? If you have done both of these things, which one is unclear?
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| Vitor |
| Posted: Mon Jul 09, 2012 5:47 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Rajat wrote: |
| I want to use a HttpInputNode but if I configure it for MIME then it is not parsing just XML messages |
So you have 2 difference possible input formats, and you can only set 1 format on the input node. We know that & you've discovered it. So you'll need to come up with some means of accepting a generic format message, discovering which of the possible types it is and then handling it.
We call that "development", or more loosely "working for a living".
1 viable alternative is to push back on the requirement. It's certainly questionable to have 3 operations (insert, search, retrieve) on a single URL as an http POST. Another would be to use SOAP rather than http, have the 3 operations litterally as 3 operations in the WSDL and make all your problems disappear as WMB will then work it out for you.
As it is, you'll just have to code for it.
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| Rajat |
| Posted: Mon Jul 09, 2012 8:39 am Post subject: |
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Novice
Joined: 26 Nov 2009
Posts: 15
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Thanks Vitor..
Is it a good idea to accept messages as BLOB and later parse it in MIME or XML formats depending on the opeartion invoked in case I am using HTTPInputNode ? |
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| MBMQDeveloper |
| Posted: Mon Jul 09, 2012 9:36 pm Post subject: |
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Novice
Joined: 02 Jul 2012
Posts: 19
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Accepting as BLOB would require you to convert the message back to MIME/XML for further processing which would affect your performance.
What about using a message set that can accept both XML and MIME? |
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| mqjeff |
| Posted: Tue Jul 10, 2012 4:52 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| MBMQDeveloper wrote: |
| Accepting as BLOB would require you to convert the message back to MIME/XML for further processing which would affect your performance. |
Not significantly.
| MBMQDeveloper wrote: |
| What about using a message set that can accept both XML and MIME? |
You mean code a DFDL message set that determines if the first character of the message is "<" or not?
That's a *terrible* idea. |
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| Vitor |
| Posted: Tue Jul 10, 2012 5:05 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Rajat wrote: |
| Is it a good idea to accept messages as BLOB and later parse it in MIME or XML formats depending on the opeartion invoked in case I am using HTTPInputNode ? |
It's an idea, I'm unconvinced it's a good idea or the best idea.
Are you using the HTTPInputNode for a valid reason or just because you've been told to?
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| Vitor |
| Posted: Tue Jul 10, 2012 5:07 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| MBMQDeveloper wrote: |
| What about using a message set that can accept both XML and MIME? |
That's like cutting your hair with a chain saw; there's a good chance you can achieve something in the direction of hair cutting but there are a number of issues to overcome and the odds of a serious problem are high....
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