/** Tries each {@link ResourceLocator} in order, the first to return non-null wins. */
@Override
public InputStream findResource(URI systemId) {
for (final ResourceLocator resourceLocator : resourceLocators) {
logger.trace("Trying {} using ResourceLocator {}", systemId, resourceLocator);
final InputStream result = resourceLocator.findResource(systemId);
if (result != null) {
logger.trace("Success with ResourceLocator {}", resourceLocator);
return result;
}
logger.trace("No success with ResourceLocator {}", resourceLocator);
}
return null;
}