/**
* Private helper used by the function factory code to load a specific target, condition, or
* general section.
*/
private void functionParserHelper(Node root, FunctionFactory factory) throws ParsingException {
// go through all elements in the section
NodeList children = root.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
Node child = children.item(i);
String name = child.getNodeName();
if (name.equals("function")) {
// a function section is a simple class element
Function function = (Function) (loadClass("function", child));
try {
factory.addFunction(function);
} catch (IllegalArgumentException iae) {
throw new ParsingException("duplicate function", iae);
}
} else if (name.equals("abstractFunction")) {
// an abstract function is a class with an identifier
URI identifier = null;
try {
identifier = new URI(child.getAttributes().getNamedItem("identifier").getNodeValue());
} catch (URISyntaxException urise) {
throw new ParsingException("invalid function identifier", urise);
}
FunctionProxy proxy = (FunctionProxy) (loadClass("abstract function", child));
try {
factory.addAbstractFunction(proxy, identifier);
} catch (IllegalArgumentException iae) {
throw new ParsingException("duplicate abstract function", iae);
}
} else if (name.equals("functionCluster")) {
// a cluster is a class that will give us a collection of
// functions that need to be added one by one into the factory
FunctionCluster cluster = (FunctionCluster) (loadClass("function cluster", child));
for (Function function : cluster.getSupportedFunctions()) {
try {
factory.addFunction(function);
} catch (IllegalArgumentException iae) {
throw new ParsingException("duplicate function", iae);
}
}
}
}
}
