--- /dev/null
+package org.apache.lucene.facet.index.streaming;
+
+import java.io.IOException;
+
+import org.apache.lucene.analysis.TokenStream;
+import org.apache.lucene.store.Directory;
+import org.junit.Test;
+
+import org.apache.lucene.facet.FacetException;
+import org.apache.lucene.facet.index.CategoryContainerTestBase;
+import org.apache.lucene.facet.index.DummyProperty;
+import org.apache.lucene.facet.index.categorypolicy.NonTopLevelOrdinalPolicy;
+import org.apache.lucene.facet.index.categorypolicy.NonTopLevelPathPolicy;
+import org.apache.lucene.facet.index.categorypolicy.OrdinalPolicy;
+import org.apache.lucene.facet.index.categorypolicy.PathPolicy;
+import org.apache.lucene.facet.index.params.DefaultFacetIndexingParams;
+import org.apache.lucene.facet.index.params.FacetIndexingParams;
+import org.apache.lucene.facet.index.streaming.CategoryAttributesStream;
+import org.apache.lucene.facet.index.streaming.CategoryListTokenizer;
+import org.apache.lucene.facet.index.streaming.CategoryParentsStream;
+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 CategoryParentsStreamTest extends CategoryContainerTestBase {
+
+ /**
+ * Verifies that a {@link CategoryParentsStream} can be constructed from
+ * {@link CategoryAttributesStream} and produces the correct number of
+ * tokens with default facet indexing params.
+ *
+ * @throws IOException
+ */
+ @Test
+ public void testStreamDefaultParams() throws IOException {
+ Directory directory = newDirectory();
+ TaxonomyWriter taxonomyWriter = new DirectoryTaxonomyWriter(
+ directory);
+ CategoryParentsStream stream = new CategoryParentsStream(
+ new CategoryAttributesStream(categoryContainer),
+ taxonomyWriter, new DefaultFacetIndexingParams());
+
+ // count the number of tokens
+ int nTokens;
+ for (nTokens = 0; stream.incrementToken(); nTokens++) {
+ }
+ // should be 6 - all categories and parents
+ assertEquals("Wrong number of tokens", 6, nTokens);
+
+ taxonomyWriter.close();
+ directory.close();
+ }
+
+ /**
+ * Verifies that a {@link CategoryParentsStream} can be constructed from
+ * {@link CategoryAttributesStream} and produces the correct number of
+ * tokens with non top level facet indexing params.
+ *
+ * @throws IOException
+ */
+ @Test
+ public void testStreamNonTopLevelParams() throws IOException {
+ Directory directory = newDirectory();
+ final TaxonomyWriter taxonomyWriter = new DirectoryTaxonomyWriter(
+ directory);
+ FacetIndexingParams indexingParams = new DefaultFacetIndexingParams() {
+ @Override
+ protected OrdinalPolicy fixedOrdinalPolicy() {
+ return new NonTopLevelOrdinalPolicy();
+ }
+ @Override
+ protected PathPolicy fixedPathPolicy() {
+ return new NonTopLevelPathPolicy();
+ }
+ };
+
+ CategoryParentsStream stream = new CategoryParentsStream(
+ new CategoryAttributesStream(categoryContainer),
+ taxonomyWriter, indexingParams);
+
+ // count the number of tokens
+ int nTokens;
+ for (nTokens = 0; stream.incrementToken(); nTokens++) {
+ }
+ /*
+ * should be 4: 3 non top level ("two", "three" and "six"), and one
+ * explicit top level ("four")
+ */
+ assertEquals("Wrong number of tokens", 4, nTokens);
+
+ taxonomyWriter.close();
+ directory.close();
+ }
+
+ /**
+ * Verifies the correctness when no attributes in parents are retained in
+ * {@link CategoryParentsStream}.
+ *
+ * @throws IOException
+ * @throws FacetException
+ */
+ @Test
+ public void testNoRetainableAttributes() throws IOException, FacetException {
+ Directory directory = newDirectory();
+ TaxonomyWriter taxonomyWriter = new DirectoryTaxonomyWriter(directory);
+
+ new CategoryParentsStream(new CategoryAttributesStream(categoryContainer),
+ taxonomyWriter, new DefaultFacetIndexingParams());
+
+ // add DummyAttribute, but do not retain, only one expected
+ categoryContainer.addCategory(initialCatgeories[0], new DummyProperty());
+
+ CategoryParentsStream stream = new CategoryParentsStream(new CategoryAttributesStream(
+ categoryContainer), taxonomyWriter,
+ new DefaultFacetIndexingParams());
+
+ int nAttributes = 0;
+ while (stream.incrementToken()) {
+ if (stream.categoryAttribute.getProperty(DummyProperty.class) != null) {
+ nAttributes++;
+ }
+ }
+ assertEquals("Wrong number of tokens with attributes", 1, nAttributes);
+
+ taxonomyWriter.close();
+ directory.close();
+ }
+
+ /**
+ * Verifies the correctness when attributes in parents are retained in
+ * {@link CategoryParentsStream}.
+ *
+ * @throws IOException
+ * @throws FacetException
+ */
+ @Test
+ public void testRetainableAttributes() throws IOException, FacetException {
+ Directory directory = newDirectory();
+ TaxonomyWriter taxonomyWriter = new DirectoryTaxonomyWriter(
+ directory);
+
+ FacetIndexingParams indexingParams = new DefaultFacetIndexingParams();
+ new CategoryParentsStream(new CategoryAttributesStream(
+ categoryContainer), taxonomyWriter, indexingParams);
+
+ // add DummyAttribute and retain it, three expected
+ categoryContainer.clear();
+ categoryContainer
+ .addCategory(initialCatgeories[0], new DummyProperty());
+ CategoryParentsStream stream = new CategoryParentsStream(
+ new CategoryAttributesStream(categoryContainer),
+ taxonomyWriter, new DefaultFacetIndexingParams());
+ stream.addRetainableProperty(DummyProperty.class);
+
+ MyCategoryListTokenizer tokenizer = new MyCategoryListTokenizer(stream,
+ indexingParams);
+
+ int nAttributes = 0;
+ try {
+ while (tokenizer.incrementToken()) {
+ if (stream.categoryAttribute.getProperty(DummyProperty.class) != null) {
+ nAttributes++;
+ }
+ }
+ } catch (IOException e) {
+ fail("Properties retained after stream closed");
+ }
+ assertEquals("Wrong number of tokens with attributes", 3, nAttributes);
+
+ taxonomyWriter.close();
+ directory.close();
+ }
+
+ private final class MyCategoryListTokenizer extends CategoryListTokenizer {
+
+ public MyCategoryListTokenizer(TokenStream input,
+ FacetIndexingParams indexingParams) {
+ super(input, indexingParams);
+ }
+
+ @Override
+ public boolean incrementToken() throws IOException {
+ if (input.incrementToken()) {
+ return true;
+ }
+ if (categoryAttribute != null) {
+ if (categoryAttribute.getCategoryPath() == null) {
+ if (categoryAttribute.getProperty(DummyProperty.class) != null) {
+ throw new IOException(
+ "Properties not cleared properly from parents stream");
+ }
+ }
+ }
+ return false;
+ }
+
+ }
+}
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fnp / pylucene.git / blobdiff