how to qualify java properties with jboss server instance

[jesso1607]

We have 3 JBoss server instances with Java libraries as war files. In the code they access a common java "properties" file. This is common across the 3 servers, since they share the same code.

I need to find a way to qualify the variables in the property file with the name of the server instance in which the code is running under. As to have specific properties under each server.

How do I change the Java code where they use the property file path and name and access the correct variables with the correct server instance? This is common code across the 3 servers so I cannot specify a specific properties file for each. Has to be dynamic at runtime.

Or is there an easier way to do this?

[peterj]

You could access the properties file using one of the system properties that identifies jboss directories. For example, if the properties file is at server/xxx/config/app.properties, you can access it as follows:

String configDir = System.getProperties("jboss.server/config.url");
Properties prop = new Properties();
prop.load(new FileInputStream(configDir + "app.properties"));

[jesso1607]

I also think these libraries can be in a Tomcat server as well. Sorry I forgot to say that.

The above would only work in JBoss?

[peterj]

The jboss.server.config.url property is only available when running JBoss AS. It is not available in standalone Tomcat.

I suggest you define your own system property for the location of the properties file and pass it in on the JVM command line.

[jesso1607]

"PeterJ" wrote:
The jboss.server.config.url property is only available when running JBoss AS. It is not available in standalone Tomcat.

I suggest you define your own system property for the location of the properties file and pass it in on the JVM command line.

How do I do that for multiple servers in jboss?

[peterj]

Here is one way. Create a run script for each app server. In each run script, set JAVA_OPTS=-Dmy.sys.prop=valueforthisappserver, and then call the default run script.