/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package hive.it.custom.udfs;
import org.apache.hadoop.hive.ql.exec.UDFArgumentException;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
public class UDF1 extends GenericUDF {
public UDF1() {
Util util = new Util();
System.out.println(
"constructor: " + getClass().getSimpleName() + " classloader: " + getClass().getClassLoader() + ", " + util + " classloader: "
+ util.getClass().getClassLoader());
}
@Override
public ObjectInspector initialize(ObjectInspector[] arguments) throws UDFArgumentException {
Util util = new Util();
System.out.println(
"initialize: " + getClass().getSimpleName() + " classloader: " + getClass().getClassLoader() + ", " + util + " classloader: "
+ util.getClass().getClassLoader());
return PrimitiveObjectInspectorFactory.javaStringObjectInspector;
}
@Override
public Object evaluate(DeferredObject[] arguments) throws HiveException {
Util util = new Util();
System.out.println(
"evaluate: " + getClass().getSimpleName() + " classloader: " + getClass().getClassLoader() + ", " + util + " classloader: "
+ util.getClass().getClassLoader());
return getClass().getSimpleName();
}
@Override
public String getDisplayString(String[] children) {
return getClass().getName();
}
}