/**
* Copyright 2008 the original author or authors.
*
* Licensed 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 net.sf.katta.lib.lucene;
import static org.junit.Assert.assertEquals;
import net.sf.katta.AbstractTest;
import net.sf.katta.util.WritableType;
import org.apache.hadoop.io.FloatWritable;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.WritableComparable;
import org.apache.lucene.search.SortField;
import org.junit.Test;
public class FieldSortComparatorTest extends AbstractTest {
@Test
public void testSingleIntFieldCompare() {
SortField[] sortFields = new SortField[] { new SortField("intField", SortField.INT) };
WritableType[] sortFieldTypes = new WritableType[] { WritableType.INT };
FieldSortComparator fieldSortComparator = new FieldSortComparator(sortFields, sortFieldTypes);
Hit hit1 = new Hit("shard", "node", 0.0f, 1, sortFieldTypes);
Hit hit2 = new Hit("shard", "node", 0.0f, 2, sortFieldTypes);
hit1.setSortFields(new WritableComparable[] { new IntWritable(1) });
hit2.setSortFields(new WritableComparable[] { new IntWritable(2) });
assertEquals(0, fieldSortComparator.compare(hit1, hit1));
assertEquals(1, fieldSortComparator.compare(hit2, hit1));
assertEquals(-1, fieldSortComparator.compare(hit1, hit2));
}
@Test
public void testTwoIntFieldCompare() {
SortField[] sortFields = new SortField[] { new SortField("intField1", SortField.INT),
new SortField("intField2", SortField.INT) };
WritableType[] sortFieldTypes = new WritableType[] { WritableType.INT, WritableType.INT };
FieldSortComparator fieldSortComparator = new FieldSortComparator(sortFields, sortFieldTypes);
Hit hit1 = new Hit("shard", "node", 0.0f, 1, sortFieldTypes);
Hit hit2 = new Hit("shard", "node", 0.0f, 2, sortFieldTypes);
hit1.setSortFields(new WritableComparable[] { new IntWritable(1), new IntWritable(1) });
hit2.setSortFields(new WritableComparable[] { new IntWritable(1), new IntWritable(2) });
assertEquals(0, fieldSortComparator.compare(hit1, hit1));
assertEquals(1, fieldSortComparator.compare(hit2, hit1));
assertEquals(-1, fieldSortComparator.compare(hit1, hit2));
}
@Test
public void testStringFieldDocIdCompare() {
SortField[] sortFields = new SortField[] { new SortField("stringField", SortField.STRING),
new SortField("docIdField", SortField.DOC) };
WritableType[] sortFieldTypes = new WritableType[] { WritableType.TEXT, WritableType.INT };
FieldSortComparator fieldSortComparator = new FieldSortComparator(sortFields, sortFieldTypes);
Hit hit1 = new Hit("shard", "node", 0.0f, 1, sortFieldTypes);
Hit hit2 = new Hit("shard", "node", 0.0f, 2, sortFieldTypes);
hit1.setSortFields(new WritableComparable[] { new Text("a"), new IntWritable(1) });
hit2.setSortFields(new WritableComparable[] { new Text("a"), new IntWritable(2) });
assertEquals(0, fieldSortComparator.compare(hit1, hit1));
assertEquals(1, fieldSortComparator.compare(hit2, hit1));
assertEquals(-1, fieldSortComparator.compare(hit1, hit2));
}
@Test
public void testStringFieldScoreCompare() {
SortField[] sortFields = new SortField[] { new SortField("stringField", SortField.STRING),
new SortField("scoreField", SortField.SCORE) };
WritableType[] sortFieldTypes = new WritableType[] { WritableType.TEXT, WritableType.FLOAT };
FieldSortComparator fieldSortComparator = new FieldSortComparator(sortFields, sortFieldTypes);
Hit hit1 = new Hit("shard", "node", 0.5f, 1, sortFieldTypes);
Hit hit2 = new Hit("shard", "node", 0.2f, 2, sortFieldTypes);
hit1.setSortFields(new WritableComparable[] { new Text("a"), new FloatWritable(hit1.getScore()) });
hit2.setSortFields(new WritableComparable[] { new Text("a"), new FloatWritable(hit2.getScore()) });
assertEquals(0, fieldSortComparator.compare(hit1, hit1));
assertEquals(1, fieldSortComparator.compare(hit2, hit1));
assertEquals(-1, fieldSortComparator.compare(hit1, hit2));
}
}