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| OS Environment Variables in File Paths |
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| hascheidl |
 Posted: Fri Jun 16, 2006 8:23 am Post subject: OS Environment Variables in File Paths |
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Novice
Joined: 05 Jun 2006
Posts: 15
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Does anybody knows if it is possible to use a windows environment variable in the "file path" property of a Trace node? I couldn't at first, maybe I did something wrong.
If not, maybe I can put its value in a message flow Environment variable, before the message enters the Trace node, and access the ${Environment.Variables.nono}... Will it work? 
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| jefflowrey |
| Posted: Fri Jun 16, 2006 1:34 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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No, it's not possible in either way.
The Trace node, in all versions that I'm aware of, does not do any interpolation at all of the file name from the properties, it merely passes it directly to a C file open call. This call will not do any shell expansion, so environment variables do not come into effect.
The Trace node uses a static file path, always. It is not in any way designed to act as a file output node, and any attempts to make it work as one are doomed to failure.
If you want to write messages to a file, then you should use a Java compute node.
If you want to do enterprise level file transport with MQ and with Broker, you should evaluate a number of products that act in that space, including the File Extender nodes.
Please note that "write messages to a file" is a completely different thing than "enterprise level file transport", such that doing the first does not in anyway accomplish the second.
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| hascheidl |
| Posted: Sat Jun 17, 2006 11:48 am Post subject: |
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Novice
Joined: 05 Jun 2006
Posts: 15
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Ok, thank you. So what does it mean?
| Quote: |
| You can use any name for the trace file. For example, c:\$user\trace\trace.log. |
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| EddieA |
| Posted: Sun Jun 18, 2006 9:50 am Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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It means you have a directory called $user, on yor C drive, which has a subdirectory called trace, that contains a file called trace.log. 
Cheers,
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Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
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| hascheidl |
| Posted: Mon Jun 19, 2006 4:07 am Post subject: |
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Joined: 05 Jun 2006
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