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| gauravg |
 Posted: Mon Aug 08, 2016 4:23 am Post subject: Jar files precedence deployed alongwith Bar file in IIB 10 |
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Novice
Joined: 12 Jan 2016
Posts: 14
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Hi,
We are facing a issue in terms of jar file loading precedence. There are 2 jar files(A and B) each having message.properties file under locale folder with same hierarchy in both.
Both Jar files are deployed in single execution group as part of Bar file only. There is nothing put under Execution group shared class, nor in Broker shared classes directory.
When checked the order of classpath loaded for these jar files, A is deployed first as compared to B.
Problem :- since A and B are referring to same property name "message.properties" (though different content ), A's property file is loaded and hence business scenario failed because B's property file was expected.
So how this order by of classpath loading is decided? Is it random or how can we forcibly ensure to make load B's property file first than A's.
Please suggest.
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| mqjeff |
| Posted: Mon Aug 08, 2016 4:30 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Please be exactly clear what you mean about a message.properties file.
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| gauravg |
| Posted: Mon Aug 08, 2016 6:27 am Post subject: |
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Novice
Joined: 12 Jan 2016
Posts: 14
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message.properties can be any property file with key value pair. As per business scenario, key passed would be used to fetch value from this property.
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| Vitor |
| Posted: Mon Aug 08, 2016 6:36 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| gauravg wrote: |
| message.properties can be any property file with key value pair. As per business scenario, key passed would be used to fetch value from this property. |
As previously discussed many times on this forum, do not use this mechanism with IIB. It's not WAS, not matter how many times Java developers like to pretend it is.
You are on a short road to pain and misery. The posted problem is just the first of many you will encounter. Pick any of the supported mechanisms to store and supply these property values to your flow code.
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Honesty is the best policy.
Insanity is the best defence. |
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| gauravg |
| Posted: Mon Aug 08, 2016 7:04 am Post subject: |
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Novice
Joined: 12 Jan 2016
Posts: 14
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Hi,
Can you please elaborate on below approach.
Please suggest correct approach for IIB. How to load values from key-value pair based property file.
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| mqjeff |
| Posted: Mon Aug 08, 2016 7:07 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Don't use a property file.
Use search to find other discussions of how to store properties and use them from IIB, without using a property file.
Don't use a property file.
Review the documentation on the functions IIB has for storing configuration and runtime data for message flows and business logic.
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| Vitor |
| Posted: Mon Aug 08, 2016 7:07 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| gauravg wrote: |
| Please suggest correct approach for IIB. |
Any mix of:
UDP
User configurable services
Promoted properties
Database tables
| gauravg wrote: |
| How to load values from key-value pair based property file. |
Like I said above - don't
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| stoney |
| Posted: Mon Aug 08, 2016 9:27 am Post subject: |
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Joined: 03 Apr 2013
Posts: 140
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| Vitor |
| Posted: Mon Aug 08, 2016 9:29 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| stoney wrote: |
| If so you need to isolate the JAR files into separate class loaders, and that means they will need to be put into separate applications or shared libraries |
One of the many reasons you should not continue with this method. This rabbit hole goes a long, long way down.
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| smdavies99 |
| Posted: Mon Aug 08, 2016 10:47 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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| Vitor wrote: |
| stoney wrote: |
| If so you need to isolate the JAR files into separate class loaders, and that means they will need to be put into separate applications or shared libraries |
One of the many reasons you should not continue with this method. This rabbit hole goes a long, long way down. |
some of us have been using this product for years and on mission critical systems.
We don't use Java properties because we know how much trouble they bring.
See my sig for my thoughts on what you are trying to do.
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Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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