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Message
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| duhbaci |
 Posted: Tue Oct 30, 2007 1:01 am Post subject: java file path problem |
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Newbie
Joined: 31 May 2007
Posts: 7
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Hello,
I am having a problem when I call a java component from ESQL. What I understood is, java component needs to read some files from the application directory and when I call it from message flow; my program does not work properly, because it could not access those files.
Let me explain in detail. This is how I call the java in ESQL;
| Code: |
CREATE PROCEDURE GetResponse (IN Param1 CHAR, IN Param2 CHAR, IN Param3)
RETURNS CHAR
LANGUAGE JAVA
EXTERNAL NAME "com.aaaaa.bbbbbb.cccccc.dddddd.getResponse"; |
I tried both ways to deploy .jar files (copying them to shared-classes folder and adding them to BAR file)
In order to deploy configuration files that I need, I manually added them to BAR file, but it did not work. Then I copied them to shared-classes folder, it also did not work. Then I tried all possible directories for message broker. They are
C:\Documents and Settings\All Users\Application Data\IBM\MQSI
C:\Documents and Settings\All Users\Application Data\IBM\MQSI\components\WBRK6_DEFAULT_BROKER\3f1099eb-1501-0000-0080-f9e17b949fd7\config\JAR
C:\Program Files\IBM\MQSI\6.0\jre\bin
Unfortunately, copying files to those folders also did not work.
The jar file that I want to deploy requires those 4 configuration file to be in the same directory, but I could not find a way to do this.
If you know the solution, it is highly appreciated.
Koray |
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| jefflowrey |
| Posted: Tue Oct 30, 2007 1:13 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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You have to restart broker after putting Jar files in shared-classes.
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| duhbaci |
| Posted: Tue Oct 30, 2007 1:56 am Post subject: |
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Newbie
Joined: 31 May 2007
Posts: 7
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I also restarted the broker. The problem is not the JAR files.
My main problem is configuration files which are in the same directory (in our case this folder is shared-classes) can not be found. |
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| jefflowrey |
| Posted: Tue Oct 30, 2007 3:01 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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So the problem is that the path that the Java classes are using to get at the files is not the same as the actual path to the files?
Try putting the configuration files in the JAR file itself.
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| duhbaci |
| Posted: Tue Oct 30, 2007 3:58 am Post subject: |
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Newbie
Joined: 31 May 2007
Posts: 7
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I don't have the source code, that is the main problem. But I asket for it, I hope to get it soon.
Even though I got the source code, thse files has to be edited for different environments. If I put them in a jar file, it will not be convenient for test and maintenance. |
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| jefflowrey |
| Posted: Tue Oct 30, 2007 4:14 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Well, even without the source code you should be able to get them to tell you what path they are trying to use to find the file.
It's basically either a file path problem, or a permissions problem.
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| fjb_saper |
| Posted: Tue Oct 30, 2007 6:36 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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I'd think more of a permissions problem. The right permissions may have to be added to the java.policy file loaded by the broker's jvm.
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| duhbaci |
| Posted: Tue Oct 30, 2007 6:56 am Post subject: |
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Newbie
Joined: 31 May 2007
Posts: 7
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This is where my application fails when it is called by Messsage Broker.
| Code: |
try {
Properties logProperties = new Properties();
logProperties.load(Thread.currentThread().getContextClassLoader().getResourceAsStream("log4j.properties"));
PropertyConfigurator.configure(logProperties);
} catch (Throwable e) {
throw new InfraStructureException("Error loading log4j.properties - " + e.getMessage());
} |
Where should I place log4j.properties file then it will work properly? |
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| fjb_saper |
| Posted: Tue Oct 30, 2007 7:05 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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This is going to be quite complicated. You seem to be looking for a relative path. Now we have no idea which class your thread is in when you execute the snippet above.
However the path I would expect to find the log4j.properties on is the access path to the class that the current thread is in when it executes this snippet.
Enjoy 
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| jefflowrey |
| Posted: Tue Oct 30, 2007 7:10 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| duhbaci wrote: |
| Where should I place log4j.properties file then it will work properly? |
In the JAR file... 
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| JLRowe |
| Posted: Tue Oct 30, 2007 7:55 am Post subject: |
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Yatiri
Joined: 25 May 2002
Posts: 664
Location: South East London
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log4j is probably trying to load log4j.properties from the current working directory, I don't know what this will be, but you could try the message broker install directory (or children of this).
It is possible to write a java node to dump the system properties and find out.
It may also try to get from the classpath, but ""C:\Documents and Settings\All Users\Application Data\IBM\MQSI\components\WBRK6_DEFAULT_BROKER\3f1099eb-1501-0000-0080-f9e17b949fd7\config\JAR"" is part of the classpath, so it should have worked in this case. |
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| duhbaci |
| Posted: Tue Oct 30, 2007 7:56 am Post subject: |
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Newbie
Joined: 31 May 2007
Posts: 7
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adding file to JAR also did not help.
I will ask to developer of the source code (i don't have the full code) to give the full exception message returning from the code.
Then I can understand it is a file path or permission problem. |
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| JLRowe |
| Posted: Tue Oct 30, 2007 7:59 am Post subject: |
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Yatiri
Joined: 25 May 2002
Posts: 664
Location: South East London
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