public static void printOperatorList() {
OperationRegistry operationRegistry = JAI.getDefaultInstance().getOperationRegistry();
List<OperationDescriptor> descriptors =
(List<OperationDescriptor>) operationRegistry.getDescriptors(OperationDescriptor.class);
Collections.sort(
descriptors,
new Comparator<OperationDescriptor>() {
public int compare(OperationDescriptor descriptor1, OperationDescriptor descriptor2) {
return descriptor1.getName().compareTo(descriptor2.getName());
}
});
int columnCount = 0;
for (OperationDescriptor descriptor : descriptors) {
columnCount = Math.max(columnCount, descriptor.getName().length());
}
for (OperationDescriptor descriptor : descriptors) {
String namePart = descriptor.getName();
if (namePart.length() < columnCount) {
namePart += spaces(columnCount - namePart.length());
}
String[][] resources = descriptor.getResources(Locale.getDefault());
String description = resources[3][1];
System.out.println(namePart + " - " + description);
}
}
