/**
* 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 org.apache.hadoop.hive.ql.udf;
import java.io.UnsupportedEncodingException;
import junit.framework.TestCase;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredJavaObject;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
public class TestGenericUDFDecode extends TestCase {
public void testDecode() throws UnsupportedEncodingException, HiveException {
String[] charsetNames = {"US-ASCII", "ISO-8859-1", "UTF-8", "UTF-16BE", "UTF-16LE", "UTF-16"};
for (String charsetName : charsetNames){
verifyDecode("A sample string", charsetName);
}
}
public void verifyDecode(String string, String charsetName) throws UnsupportedEncodingException, HiveException{
GenericUDFDecode udf = new GenericUDFDecode();
byte[] bytes = string.getBytes(charsetName);
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.javaByteArrayObjectInspector;
ObjectInspector charsetOI = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
ObjectInspector[] initArguments = {valueOI, charsetOI};
udf.initialize(initArguments);
DeferredObject valueObj = new DeferredJavaObject(bytes);
DeferredObject charsetObj = new DeferredJavaObject(charsetName);
DeferredObject[] arguments = {valueObj, charsetObj};
String output = (String) udf.evaluate(arguments);
assertEquals("Decoding failed for CharSet: " + charsetName, string, output);
}
}