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* 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
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* KIND, either express or implied. See the License for the
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package hivemall.ftvec.trans;
import hivemall.utils.hadoop.WritableUtils;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
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.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.ObjectInspectorFactory;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
import org.apache.hadoop.io.Text;
import org.junit.Assert;
import org.junit.Test;
public class VectorizeFeaturesUDFTest {
@Test(expected = UDFArgumentException.class)
public void testMismatch() throws HiveException, IOException {
VectorizeFeaturesUDF udf = new VectorizeFeaturesUDF();
ObjectInspector[] argOIs = new ObjectInspector[3];
List<String> featureNames = Arrays.asList("a", "b", "c");
argOIs[0] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames);
argOIs[1] = PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
argOIs[2] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
udf.initialize(argOIs);
udf.close();
}
@Test
public void testOneArgument() throws HiveException, IOException {
VectorizeFeaturesUDF udf = new VectorizeFeaturesUDF();
ObjectInspector[] argOIs = new ObjectInspector[2];
List<String> featureNames = Arrays.asList("a");
argOIs[0] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames);
argOIs[1] = PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
udf.initialize(argOIs);
DeferredObject[] arguments = new DeferredObject[2];
arguments[1] = new DeferredJavaObject(new Double(0.1));
List<Text> actuals = udf.evaluate(arguments);
//System.out.println(actuals);
List<Text> expected = WritableUtils.val(new String[] {"a:0.1"});
Assert.assertEquals(expected, actuals);
udf.close();
}
@Test
public void testTwoArguments() throws HiveException, IOException {
VectorizeFeaturesUDF udf = new VectorizeFeaturesUDF();
ObjectInspector[] argOIs = new ObjectInspector[3];
List<String> featureNames = Arrays.asList("a", "b");
argOIs[0] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames);
argOIs[1] = PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
argOIs[2] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
udf.initialize(argOIs);
DeferredObject[] arguments = new DeferredObject[3];
arguments[1] = new DeferredJavaObject(new Double(0.1));
arguments[2] = new DeferredJavaObject("1.1");
List<Text> actuals = udf.evaluate(arguments);
//System.out.println(actuals);
List<Text> expected = WritableUtils.val("a:0.1", "b:1.1");
Assert.assertEquals(expected, actuals);
udf.close();
}
@Test
public void testAvoidZeroWeight() throws HiveException, IOException {
VectorizeFeaturesUDF udf = new VectorizeFeaturesUDF();
ObjectInspector[] argOIs = new ObjectInspector[3];
List<String> featureNames = Arrays.asList("a", "b");
argOIs[0] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames);
argOIs[1] = PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
argOIs[2] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
udf.initialize(argOIs);
DeferredObject[] arguments = new DeferredObject[3];
arguments[1] = new DeferredJavaObject(new Double(0.1));
arguments[2] = new DeferredJavaObject("0");
List<Text> actuals = udf.evaluate(arguments);
//System.out.println(actuals);
List<Text> expected = WritableUtils.val(new String[] {"a:0.1"});
Assert.assertEquals(expected, actuals);
udf.close();
}
@Test
public void testBooleanWeight() throws HiveException, IOException {
VectorizeFeaturesUDF udf = new VectorizeFeaturesUDF();
ObjectInspector[] argOIs = new ObjectInspector[3];
List<String> featureNames = Arrays.asList("a", "b");
argOIs[0] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames);
argOIs[1] = PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
argOIs[2] = PrimitiveObjectInspectorFactory.javaBooleanObjectInspector;
udf.initialize(argOIs);
DeferredObject[] arguments = new DeferredObject[3];
arguments[1] = new DeferredJavaObject(new Double(0.1));
arguments[2] = new DeferredJavaObject(new Boolean(false));
List<Text> actuals = udf.evaluate(arguments);
//System.out.println(actuals);
List<Text> expected = WritableUtils.val(new String[] {"a:0.1"});
Assert.assertEquals(expected, actuals);
arguments[2] = new DeferredJavaObject(new Boolean(true));
actuals = udf.evaluate(arguments);
//System.out.println(actuals);
expected = WritableUtils.val("a:0.1", "b:1.0");
Assert.assertEquals(expected, actuals);
udf.close();
}
@Test
public void testCategoricalVariable() throws HiveException, IOException {
VectorizeFeaturesUDF udf = new VectorizeFeaturesUDF();
ObjectInspector[] argOIs = new ObjectInspector[3];
List<String> featureNames = Arrays.asList("a", "b");
argOIs[0] = ObjectInspectorFactory.getStandardConstantListObjectInspector(
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames);
argOIs[1] = PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
argOIs[2] = PrimitiveObjectInspectorFactory.javaStringObjectInspector;
udf.initialize(argOIs);
DeferredObject[] arguments = new DeferredObject[3];
arguments[1] = new DeferredJavaObject(new Double(0.1));
arguments[2] = new DeferredJavaObject("dayofweek");
List<Text> actuals = udf.evaluate(arguments);
//System.out.println(actuals);
List<Text> expected = WritableUtils.val("a:0.1", "b#dayofweek");
Assert.assertEquals(expected, actuals);
arguments[2] = new DeferredJavaObject("1.0");
actuals = udf.evaluate(arguments);
//System.out.println(actuals);
expected = WritableUtils.val("a:0.1", "b:1.0");
Assert.assertEquals(expected, actuals);
arguments[2] = new DeferredJavaObject("1");
actuals = udf.evaluate(arguments);
//System.out.println(actuals);
expected = WritableUtils.val("a:0.1", "b:1.0");
Assert.assertEquals(expected, actuals);
arguments[2] = new DeferredJavaObject("0");
actuals = udf.evaluate(arguments);
//System.out.println(actuals);
expected = WritableUtils.val(new String[] {"a:0.1"});
Assert.assertEquals(expected, actuals);
udf.close();
}
}