ModuleDefinition scalerDef = core.getModuleRegistry().getModuleDefinitionByKey(MimeTypeSpecificImageScalerModuleType.class, mimeType);
if (scalerDef == null) {
throw new WGNotSupportedException("No image scaler implementation available for mimetype " + mimeType);
}
MimeTypeSpecificImageScaler scaler = (MimeTypeSpecificImageScaler) core.getModuleRegistry().instantiate(scalerDef);
return scaler;
}