package org.apache.lucene.facet.index.categorypolicy;
import org.apache.lucene.store.Directory;
import org.junit.Test;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.facet.index.categorypolicy.DefaultOrdinalPolicy;
import org.apache.lucene.facet.index.categorypolicy.NonTopLevelOrdinalPolicy;
import org.apache.lucene.facet.index.categorypolicy.OrdinalPolicy;
import org.apache.lucene.facet.taxonomy.CategoryPath;
import org.apache.lucene.facet.taxonomy.TaxonomyReader;
import org.apache.lucene.facet.taxonomy.TaxonomyWriter;
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter;
/**
* 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.
*/
public class OrdinalPolicyTest extends LuceneTestCase {
@Test
public void testDefaultOrdinalPolicy() {
// check ordinal policy
OrdinalPolicy ordinalPolicy = new DefaultOrdinalPolicy();
assertFalse("default ordinal policy should not match root", ordinalPolicy
.shouldAdd(TaxonomyReader.ROOT_ORDINAL));
for (int i = 0; i < 300; i++) {
int ordinal = 1 + random.nextInt(Integer.MAX_VALUE - 1);
assertTrue("default ordinal policy should match " + ordinal,
ordinalPolicy.shouldAdd(ordinal));
}
}
@Test
public void testNonTopLevelOrdinalPolicy() throws Exception {
Directory dir = newDirectory();
TaxonomyWriter taxonomy = null;
taxonomy = new DirectoryTaxonomyWriter(dir);
int[] topLevelOrdinals = new int[10];
String[] topLevelStrings = new String[10];
for (int i = 0; i < 10; i++) {
topLevelStrings[i] = Integer.valueOf(random.nextInt(30)).toString();
topLevelOrdinals[i] = taxonomy.addCategory(new CategoryPath(
topLevelStrings[i]));
}
int[] nonTopLevelOrdinals = new int[300];
for (int i = 0; i < 300; i++) {
int nComponents = 2 + random.nextInt(10);
String[] components = new String[nComponents];
components[0] = topLevelStrings[i % 10];
for (int j = 1; j < components.length; j++) {
components[j] = (Integer.valueOf(random.nextInt(30))).toString();
}
nonTopLevelOrdinals[i] = taxonomy.addCategory(new CategoryPath(
components));
}
// check ordinal policy
OrdinalPolicy ordinalPolicy = new NonTopLevelOrdinalPolicy();
ordinalPolicy.init(taxonomy);
assertFalse("top level ordinal policy should not match root", ordinalPolicy
.shouldAdd(TaxonomyReader.ROOT_ORDINAL));
for (int i = 0; i < 10; i++) {
assertFalse("top level ordinal policy should not match "
+ topLevelOrdinals[i],
ordinalPolicy.shouldAdd(topLevelOrdinals[i]));
}
for (int i = 0; i < 300; i++) {
assertTrue("top level ordinal policy should match "
+ nonTopLevelOrdinals[i],
ordinalPolicy.shouldAdd(nonTopLevelOrdinals[i]));
}
// check illegal ordinal
assertFalse("Should not add illegal ordinal", ordinalPolicy.shouldAdd(100000));
taxonomy.close();
dir.close();
}
}