private void initProcessorIterator(Context context, Iterable<? extends Processor> processors) {
Log log = Log.instance(context);
Iterator<? extends Processor> processorIterator;
if (options.isSet(XPRINT)) {
try {
Processor processor = PrintingProcessor.class.newInstance();
processorIterator = List.of(processor).iterator();
} catch (Throwable t) {
AssertionError assertError = new AssertionError("Problem instantiating PrintingProcessor.");
assertError.initCause(t);
throw assertError;
}
} else if (processors != null) {
processorIterator = processors.iterator();
} else {
String processorNames = options.get(PROCESSOR);
JavaFileManager fileManager = context.get(JavaFileManager.class);
try {
// If processorpath is not explicitly set, use the classpath.
processorClassLoader =
fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)
? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)
: fileManager.getClassLoader(CLASS_PATH);
/*
* If the "-processor" option is used, search the appropriate
* path for the named class. Otherwise, use a service
* provider mechanism to create the processor iterator.
*/
if (processorNames != null) {
processorIterator = new NameProcessIterator(processorNames, processorClassLoader, log);
} else {
processorIterator = new ServiceIterator(processorClassLoader, log);
}
} catch (SecurityException e) {
/*
* A security exception will occur if we can't create a classloader.
* Ignore the exception if, with hindsight, we didn't need it anyway
* (i.e. no processor was specified either explicitly, or implicitly,
* in service configuration file.) Otherwise, we cannot continue.
*/
processorIterator = handleServiceLoaderUnavailability("proc.cant.create.loader", e);
}
}
discoveredProcs = new DiscoveredProcessors(processorIterator);
}
public static void assertValidity(DomElement element, String msg) {
if (element instanceof DomFileElementImpl) {
final String s = ((DomFileElementImpl) element).checkValidity();
if (s != null) {
throw new AssertionError(s);
}
return;
}
final DomInvocationHandler handler = DomManagerImpl.getDomInvocationHandler(element);
assert handler != null;
try {
handler.assertValid();
} catch (AssertionError e) {
throw new AssertionError(msg + e.getMessage());
}
}