/**
* Creates a new JXPathContext.
*
* @param object the context object
* @return a new JXPathContext
*/
private JXPathContext createContext(Object object) {
ListFunctions listFunctions = new ListFunctions(getArchetypeService(), getLookupService());
FunctionLibrary library = new FunctionLibrary();
library.addFunctions(new ObjectFunctions(listFunctions, "list"));
library.addFunctions(new ExpressionFunctions("expr"));
return JXPathHelper.newContext(object, library);
}
/**
* Adds functions for the specified function object and namespace.
*
* @param functionObject the function object
* @param namespace the namespace
*/
private void addFunctions(Object functionObject, String namespace) {
if (functionObject instanceof Functions) {
// namespace is ignored
functions.addFunctions((Functions) functionObject);
} else {
functions.addFunctions(new ObjectFunctions(functionObject, namespace));
}
}
/**
* Create a new context for the specified object that has access to the supplied functions.
*
* @param object the context bean
* @param functions the functions
* @return JXPathContext the context object
*/
public static JXPathContext newContext(Object object, Functions functions) {
JXPathContext context = JXPathContext.newContext(object);
FunctionLibrary lib = new FunctionLibrary();
lib.addFunctions(context.getFunctions());
lib.addFunctions(functions);
context.setFunctions(lib);
context.setLenient(true);
return context;
}
static {
System.setProperty(
JXPathContextFactory.FACTORY_NAME_PROPERTY,
OpenVPMSContextFactoryReferenceImpl.class.getName());
// set the extended type converter
TypeUtils.setTypeConverter(new OpenVPMSTypeConverter());
// now just add the default functions
functions.addFunctions(JXPathContext.newContext(new Object()).getFunctions());
}
/**
* Adds functions for the specified class name and namespace.
*
* @param className the class name
* @param namespace the namespace
*/
private void addFunctions(String className, String namespace) {
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
Class clazz = loader.loadClass(className);
functions.addFunctions(new ClassFunctions(clazz, namespace));
} catch (Exception exception) {
throw new JXPathHelperException(
JXPathHelperException.ErrorCode.InvalidClassSpecified,
new Object[] {className},
exception);
}
}
