Calling Java Jar program from Oscript

Hi,

I want to call a java program from Oscript and wait for the end of this program.

I've tried with methods of AdminService package (addProcess, startProcess, isProcessRunning...) but Livelink stop my process automatically after 1 min of execution. Is there a way to configure this timeout ? What are the possibles parameters for the process (cmdLine, maxGoodExit....) ?

I've look this forum but it's an old topic.

https://knowledge.opentext.com/knowledge/cs.dll?func=ll&objId=3968260&objAction=viewincontainer

Is there any documentation on MSWindows package ? In my builder help i only see method signature but there is no description of the meaning of the parameters...

Thanks !

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Comments

Kyle_Swidrovich

The MSWindows and AdminService packages are for OpenText use only, which is why they’re not documented.

If you’d like to call Java from Oscript, I recommend focusing your attention on the JavaObject built-in.

It allows you to instantiate an instance of a class and call out to it directly.

This thread will also be of interest to you as it talks about this built-in:

calling a web service from oscript

Best regards,

Kyle

Carsten_Kulms

I wonder if you really want to idle a thread for all the time the external program runs. Threads are a rather scarce resource in Content Server.
Maybe you could consider an asynchronous execution model: having an external 'service' running all time and the OScript code justs hands over to an order (and data) to be processed by that service. Once finished the external service can call another piece of OScript (via a request handler) to deliver the result.
If the external programm shall run on demand only then you could look at the OScript-Java integration and leverage the external process management features of the JVM runtime - asynchronous execution should be considered in this case also.

Ossie_Moore

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

Here is an article I published on my OScript Adventures blog that shows you how to leverage the HTTPComponents Java library from OScript. (http://www.oscriptadventures.com/2012/08/oh-what-tangled-web-leverage-apache.html) The techniques used would work for leveraging pretty much any Java library bundled in into a jar file.

Note: One important thing to note is that you should ensure that the jar file was compiled to work with the version of Java that your Livelink/Content Server environment is expecting. For example, Livelink 9.7.1 bundles and expects code compiled for Java version 1.5 or earlier. If you are compiling your own Java library and you are using 1.6 or 1.7 and you wanted to use your library with Livelink 9.7.1 for example, you'd need to compile with the -source and -target option of 1.5. (i.e. javac -source 1.5 -target 1.5 com/example/MyProgram.java ) However, if you are using either NetBeans and Eclipse, they will handle this for you when you set the target version to 1.5 in your project settings. (Additionally, the IDE's will warn you should you use a 1.6/1.7 feature when targeting a 1.5 runtime.)

Note: Builder does *not* by default startup the JVM. If you don't enable the JVM when running Builder, you won't be able to do anything with Java unless you are running from the services. Here is another link to an article that shows exactly how to do this (http://www.oscriptadventures.com/2012/08/have-cup-of-joe-enable-java-in-builder.html), but essentially, you just need to:

Right-click on the Builder shortcut, choose properties. Add '-loadjavavm' to the end of the target value Click Ok.

Ossie Moore

From: eLink Entry: Content Server Development Forum [mailto:development@elinkkc.opentext.com]
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Subject: [EXTERNAL]Calling Java Jar program from Oscript

Calling Java Jar program from Oscript

Posted by support.opentext@eurogiciel.fr (Team, Support) On 01-08-2013 04:44

Hi, I want to call a java program from Oscript and wait for the end of this program. I've tried with methods of AdminService package (addProcess, startProcess, isProcessRunning...) but Livelink stop my process automatically after 1 min of execution. Is there a way to configure this timeout ? What are the possibles parameters for the process (cmdLine, maxGoodExit....) ? I've look this forum but it's an old topic. https://knowledge.opentext.com/knowledge/cs.dll?func=ll&objId=3968260&objAction=viewincontainer Is there any documentation on MSWindows package ? In my builder help i only see method signature but there is no description of the meaning of the parameters... Thanks !

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Support_Team

Hi,

thanks to all of you.

For my case i'm gona use ckulms@opentext.com method (having an external 'service' running all time and the OScript code justs hands over to an order (and data) to be processed by that service), It will be the easiest way to get what i want.

Thanks