Java help for a .Net programmer?

I have been struggling with migrating a *-load of very old customized Data Deploy code from 5.6 to our new TeamSite installation, using OpenDeploy 6.1.1. This is difficult for me considering I don't know Java or Perl in the least. And everyone who originally developed this code is of course gone.

So for right now, can I ask a seemingly simple question? I have a test stand-alone deployment in which they're using value-from-callout to fill one of the values with custom code. I finally got that working via putting the file, call it custom-datadeploy.jar, into od-home\userlib, and by adding od-home\lib\ddcombo.jar into the Classpath in the registry (windows).

SO now I get to a point where it fails on the custom classes, because it cannot seemingly load the associated properties files. The .class file decompiles to this:

getClass().getClassLoader();
java.io.InputStream inputstream = ClassLoader.getSystemResourceAsStream("releaseid.properties");
properties = new Properties();
try
{
properties.load(inputstream);
}

which I think is where the problem is. The releaseid.properties file is definitely in the root of the .jar file in question.

Can anyone offer me advice on what to look for?

Thanks in advance
Sue

DBD: ERROR:
java.lang.NullPointerException
at java.io.Reader.(Reader.java:61)
at java.io.InputStreamReader.(InputStreamReader.java:80)
at java.util.Properties.load(Properties.java:266)
at com.rhi.prp.datadeploy.GetReleaseId.loadProperties(Unknown Source)
at com.rhi.prp.datadeploy.GetReleaseId.GetExternalValue(Unknown Source)

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Comments

Tbag

You might need to ask the Context's ClassLoader to get the input stream for you, as it isn't clear to me what the runtime classpath available to the custom code is.

Try something like this:


InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("releaseid.properties");

SueHernandez

Thanks for the tip. I guess my problem is - it worked in Data Deploy, why won't the same code work in the new OpenDeploy version? This is not a .jar file that I have started from scratch; rather it's existing code.

So one thing I did try, was I added my .jar file specifically to the registry at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iwod60\Parameters\JVM Option Number 8. This *seemed* to get past the problem of loading the properties file. Now I'm getting more errors that don't make any sense (no real detail in the errors).

I guess my problem is, is that I had working code in the old version, that doesn't work in the new version, and IWov support refuses to help me claiming that this is a "custom code" problem and thus I have to hire a consultant. *Grumble*

Thanks anyway for trying to help.

Bill Klish

I would try changing it to:

java.io.InputStream inputstream = ClassLoader.getResourceAsStream("releaseid.properties");

SueHernandez

I would try changing it to:

java.io.InputStream inputstream = ClassLoader.getResourceAsStream("releaseid.properties");

Well it turns out that this worked, and solved my problem. Thank you very much.

SueHernandez

One other tidbit in case this helps anyone out.

So it turns out that in the old system, someone had directly edited the file iwdd.ipl in DataDeploy-Home\bin (this file doesn't exist in this new system). They hard-coded this custom .jar file right into a variable called @datadeploy_jarfiles which assumedly loaded a bunch of jar files into memory.

That's why, when the function getSystemResourceAsStream was called, this jar file was somehow referenced, and therefore knew how to find the jar file. To my understanding, from what I was told, if the jar file path is not in a "System-wide" classpath, it can't find it.

Thus, using getResourceAsStream works, because it first looks at the exact same location as the .class file, then secondly looks inside the entire jar file, which is what I wanted.

So thanks to all who offered advice, and I hope this is of help to any other non-Java programmers out there. :-)