How to configure a Shared Library in WebSphere with Jython

Here's a script that I used to configure a Shared Library in WebSphere 6.1 using Jython.

from string import whitespace


# See if library already exists.
cellId = AdminConfig.list("Cell")
sharedLibraryId = AdminConfig.list("Library")
if (sharedLibraryId.find(sharedLibName) < 0): # Library does not exist.
	print "Creating Shared Library"
	params = [];
	params.append(["name", sharedLibName]);
	sharedLibraryId = AdminConfig.create("Library", cellId, params);

	# Find PARENT_LAST class loader
	print "Finding Class Loader"
	parentLastClassLoader = None;
	classLoaders = AdminConfig.list("Classloader")
	classLoaders = classLoaders.split();
	for classLoader in classLoaders:
		mode = AdminConfig.showAttribute(classLoader, "mode");
		if (mode == "PARENT_LAST"):
			parentLastClassLoader = classLoader;
			print "Found Parent Last Class Loader: " + classLoader;
	# Create a class loader
	if (parentLastClassLoader == None):
		print "Creating Class Loader";
		applicationServer = AdminConfig.list("ApplicationServer")
		params = [];
		params.append(["mode", "PARENT_LAST"]);
		parentLastClassLoader = AdminConfig.create("Classloader", applicationServer, params)
		print "Created Parent Last Class Loader: " + parentLastClassLoader;

	# Add the shared library to the class loader.
	params = [];
	params.append(["libraryName", sharedLibName]);
	params.append(["sharedClassloader", "true"]);
	AdminConfig.create("LibraryRef", parentLastClassLoader, params)

	print "Using Shared Library: " + sharedLibraryId;

	# Set a WAS variable to point to SharedLib
	print "Update the Variable Map"
	variableMap = AdminConfig.list("VariableMap").split();
	# Find the variable map for the server.
	for v in variableMap:
		if (v.find("/server") >= 0):
			variableMap = v
	print "Updating Variable Map: " + variableMap
	params = [];
	params.append(["symbolicName", "APP_SHARED_LIB_PATH"]);
	params.append(["value", "${APP_PROJECTS_ROOT}/SharedLib/MyApp"]);
	params.append(["description", "Root folder containing shared libs"]);
	AdminConfig.create("VariableSubstitutionEntry", variableMap, params);

	# Add all of our shared libs to Shared Library
	print "Adding Classpath";
	classpath = []
	classpathStr = ""
	for c in classpath:
		if len(classpathStr) > 0:
			classpathStr += ";";
		classpathStr += c;
	params = [];
	params.append(["classPath", classpathStr]);
	AdminConfig.modify(sharedLibraryId, params);

# Save Config at the end.;

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