@Override
public void serviceInit(Configuration conf) throws Exception {
Constructor<?> cons;
try {
if (conf instanceof TajoConf) {
this.conf = (TajoConf) conf;
} else {
throw new TajoInternalError("conf must be a TajoConf instance");
}
Class<?> storeClass = this.conf.getClass(CatalogConstants.STORE_CLASS, DerbyStore.class);
LOG.info("Catalog Store Class: " + storeClass.getCanonicalName());
cons = storeClass.getConstructor(new Class[] {Configuration.class});
this.store = (CatalogStore) cons.newInstance(this.conf);
initBuiltinFunctions(builtingFuncs);
} catch (Throwable t) {
LOG.error("CatalogServer initialization failed", t);
throw new TajoInternalError(t);
}
super.serviceInit(conf);
}
private Method getEvaluateMethod(TajoDataTypes.DataType[] tajoParamTypes, Class<?> clazz) {
Constructor constructor = clazz.getConstructors()[0];
try {
instance = constructor.newInstance();
} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
throw new TajoInternalError(e);
}
for (Method m : clazz.getMethods()) {
if (m.getName().equals("evaluate")) {
Class[] methodParamTypes = m.getParameterTypes();
if (checkParamTypes(methodParamTypes, tajoParamTypes)) {
return m;
}
}
}
throw new TajoInternalError(
new UndefinedFunctionException(String.format("Hive UDF (%s)", clazz.getSimpleName())));
}