LuceneFullTextSearchIndexTest.java

/*
 * Copyright 2015 JBoss, by Red Hat, Inc
 *
 * 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 org.uberfire.ext.metadata.io;

import java.io.IOException;

import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopScoreDocCollector;
import org.apache.lucene.search.WildcardQuery;
import org.jboss.byteman.contrib.bmunit.BMScript;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.uberfire.ext.metadata.backend.lucene.LuceneConfigBuilder;
import org.uberfire.ext.metadata.backend.lucene.index.LuceneIndex;
import org.uberfire.ext.metadata.engine.Index;
import org.uberfire.ext.metadata.engine.Indexer;
import org.uberfire.ext.metadata.model.KObject;
import org.uberfire.ext.metadata.model.KObjectKey;
import org.uberfire.ext.metadata.model.KProperty;
import org.uberfire.ext.metadata.model.schema.MetaType;
import org.uberfire.io.IOService;
import org.uberfire.io.attribute.DublinCoreView;
import org.uberfire.java.nio.base.version.VersionAttributeView;
import org.uberfire.java.nio.file.Path;

import static org.junit.Assert.*;
import static org.uberfire.ext.metadata.engine.MetaIndexEngine.FULL_TEXT_FIELD;
import static org.uberfire.ext.metadata.io.KObjectUtil.toKCluster;

@RunWith(org.jboss.byteman.contrib.bmunit.BMUnitRunner.class)
@BMScript(value = "byteman/index.btm")
public class LuceneFullTextSearchIndexTest extends BaseIndexTest {

    @Override
    protected IOService ioService() {
        if (ioService == null) {
            config = new LuceneConfigBuilder()
                    .withInMemoryMetaModelStore()
                    .useDirectoryBasedIndex()
                    .useInMemoryDirectory()
                    .build();

            ioService = new IOServiceIndexedImpl(config.getIndexEngine(),
                                                 DublinCoreView.class,
                                                 VersionAttributeView.class);

            IndexersFactory.addIndexer(new MockIndexer());
        }
        return ioService;
    }

    @Override
    protected String[] getRepositoryNames() {
        return new String[]{this.getClass().getSimpleName()};
    }

    @Test
    public void testFullTextIndexedFile() throws IOException, InterruptedException {
        setupCountDown(2);
        final Path path1 = getBasePath(this.getClass().getSimpleName()).resolve("mydrlfile1.drl");
        ioService().write(path1,
                          "Some cheese");

        waitForCountDown(5000);

        final Index index = config.getIndexManager().get(toKCluster(path1.getFileSystem()));

        final IndexSearcher searcher = ((LuceneIndex) index).nrtSearcher();

        {
            final TopScoreDocCollector collector = TopScoreDocCollector.create(10);

            searcher.search(new WildcardQuery(new Term(FULL_TEXT_FIELD,
                                                       "*file*")),
                            collector);

            final ScoreDoc[] hits = collector.topDocs().scoreDocs;
            listHitPaths(searcher,
                         hits);

            assertEquals(1,
                         hits.length);
        }

        {
            final TopScoreDocCollector collector = TopScoreDocCollector.create(10);

            searcher.search(new WildcardQuery(new Term(FULL_TEXT_FIELD,
                                                       "*mydrlfile1*")),
                            collector);

            final ScoreDoc[] hits = collector.topDocs().scoreDocs;
            listHitPaths(searcher,
                         hits);

            assertEquals(1,
                         hits.length);
        }

        setupCountDown(2);

        final Path path2 = getBasePath(this.getClass().getSimpleName()).resolve("a.drl");
        ioService().write(path2,
                          "Some cheese");

        waitForCountDown(5000);

        {
            final TopScoreDocCollector collector = TopScoreDocCollector.create(10);

            searcher.search(new WildcardQuery(new Term(FULL_TEXT_FIELD,
                                                       "a*")),
                            collector);

            final ScoreDoc[] hits = collector.topDocs().scoreDocs;
            listHitPaths(searcher,
                         hits);

            assertEquals(1,
                         hits.length);
        }

        ((LuceneIndex) index).nrtRelease(searcher);
    }

    private static class MockIndexer implements Indexer {

        @Override
        public boolean supportsPath(final Path path) {
            return true;
        }

        @Override
        public KObject toKObject(final Path path) {
            return new TestKObjectWrapper(KObjectUtil.toKObject(path));
        }

        @Override
        public KObjectKey toKObjectKey(final Path path) {
            return new TestKObjectKeyWrapper(KObjectUtil.toKObjectKey(path));
        }
    }

    private static class TestKObjectKeyWrapper implements KObjectKey {

        protected KObjectKey delegate;

        private TestKObjectKeyWrapper(final KObjectKey delegate) {
            this.delegate = delegate;
        }

        @Override
        public String getId() {
            return delegate.getId() + "-refactoring";
        }

        @Override
        public MetaType getType() {
            return delegate.getType();
        }

        @Override
        public String getClusterId() {
            return delegate.getClusterId();
        }

        @Override
        public String getSegmentId() {
            return delegate.getSegmentId();
        }

        @Override
        public String getKey() {
            return delegate.getKey();
        }
    }

    private static class TestKObjectWrapper extends TestKObjectKeyWrapper implements KObject {

        private TestKObjectWrapper(final KObject delegate) {
            super(delegate);
        }

        @Override
        public Iterable<KProperty<?>> getProperties() {
            return ((KObject) delegate).getProperties();
        }

        @Override
        public boolean fullText() {
            return false;
        }
    }
}