WAS v8.5 > Script the application serving environment (wsadmin) > Configure applications using scripting

Configure a shared library for an application using wsadmin.sh

This task uses the AdminConfig object to configure a shared library for an application. Shared libraries are files used by multiple applications. Create a shared library to reduce the number of duplicate library files on the system.

There are two ways to complete this task. The example in this topic uses the AdminConfig object to create and configure a shared library. Alternatively, we can use the createSharedLibrary script in the AdminResources script library to configure shared libraries.

The scripting library provides a set of procedures to automate the most common administration functions. We can run each script procedure individually, or combine several procedures to develop new scripts.

1. Start the wsadmin scripting tool.
   

2. Identify the shared library and assign it to the library variable. We can either use an existing shared library or create a new one, for example:

   • To create a new shared library, perform the following steps:

     1. Identify the node and assign it to a variable, for example:

        • Jacl:

          set n1 [$AdminConfig getid /Cell:mycell/Node:mynode/]

        • Jython:

          n1 = AdminConfig.getid('/Cell:mycell/Node:mynode/')
          
          print n1

        Example output:

        mynode(cells/mycell/nodes/mynode|node.xml#Node_1)

     2. Create the shared library in the node. The following example creates a new shared library in the node scope. We can modify it to use the cell or server scope.

        • Jacl:

          set library [$AdminConfig create Library $n1 {{name mySharedLibrary} 
          {classPath c:/mySharedLibraryClasspath}}]

        • Jython:

          library = AdminConfig.create('Library', n1, [['name', 'mySharedLibrary'], 
          ['classPath', 'c:/mySharedLibraryClasspath']])
          
          print library

        Example output:

        MySharedLibrary(cells/mycell/nodes/mynode|libraries.xml#Library_1)

   • To use an existing shared library, issue the following command:

     • Jacl:

       set library [$AdminConfig getid /Library:mySharedLibrary/]

     • Jython:

       library = AdminConfig.getid('/Library:mySharedLibrary/')
       print library

     Example output:

     MySharedLibrary(cells/mycell/nodes/mynode|libraries.xml#Library_1)

3. Identify the deployment configuration object for the application and assign it to the deployment variable. For example:

   • Jacl:

     set deployment [$AdminConfig getid /Deployment:myApp/]

   • Jython:

     deployment = AdminConfig.getid('/Deployment:myApp/')
     
     print deployment

   Example output:

   myApp(cells/mycell/applications/myApp.ear/deployments/myApp|deployment.xml#Deployment_1)
4. Retrieve the application deployment and assign it to the appDeploy variable. For example:

   • Jacl:

     set appDeploy [$AdminConfig showAttribute $deployment deployedObject]

   • Jython:

     appDeploy = AdminConfig.showAttribute(deployment, 'deployedObject')
     
     print appDeploy

   Example output:

   (cells/mycell/applications/myApp.ear/deployments/myApp|deployment.xml#ApplicationDeployment_1)

5. Identify the class loader in the application deployment and assign it to the classLoader variable. For example:

   • Jacl:

     set classLoad1 [$AdminConfig showAttribute $appDeploy classloader]

   • Jython:

     classLoad1 = AdminConfig.showAttribute(appDeploy, 'classloader')
     
     print classLoad1

   Example output:

   (cells/mycell/applications/myApp.ear/deployments/myApp|deployment.xml#Classloader_1)
6. Associate the shared library in the application through the class loader. For example:

   • Jacl:

     $AdminConfig create LibraryRef $classLoad1 {{libraryName MyshareLibrary}}

   • Jython:

     print AdminConfig.create('LibraryRef', classLoad1, [['libraryName', 'MyshareLibrary']])

   Example output:

   (cells/mycell/applications/myApp.ear/deployments/myApp|deployment.xml#LibraryRef_1)

7. Save the configuration changes.

   Use the following command example to save your configuration changes:

   AdminConfig.save()

Related

Start the wsadmin scripting client using wsadmin.sh
Create shared libraries
Associate shared libraries with applications or modules
Use the wsadmin scripting AdminConfig object for scripted administration
Configure a shared library using scripting

Reference:

Resource configuration scripts
Commands for the AdminConfig object using wsadmin.sh

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