Examples with DirectoryReader org.apache.lucene.index.DirectoryReader used on opensource projects

Example 31 with DirectoryReader

use of org.apache.lucene.index.DirectoryReader in project elasticsearch by elastic.

the class IndexSearcherWrapperTests method testIsCacheable.

public void testIsCacheable() throws IOException {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = newIndexWriterConfig();
    IndexWriter writer = new IndexWriter(dir, iwc);
    Document doc = new Document();
    doc.add(new StringField("id", "1", random().nextBoolean() ? Field.Store.YES : Field.Store.NO));
    doc.add(new TextField("field", "doc", random().nextBoolean() ? Field.Store.YES : Field.Store.NO));
    writer.addDocument(doc);
    DirectoryReader open = ElasticsearchDirectoryReader.wrap(DirectoryReader.open(writer), new ShardId("foo", "_na_", 1));
    IndexSearcher searcher = new IndexSearcher(open);
    assertEquals(1, searcher.search(new TermQuery(new Term("field", "doc")), 1).totalHits);
    searcher.setSimilarity(iwc.getSimilarity());
    final AtomicInteger closeCalls = new AtomicInteger(0);
    IndexSearcherWrapper wrapper = new IndexSearcherWrapper() {

        @Override
        public DirectoryReader wrap(DirectoryReader reader) throws IOException {
            return new FieldMaskingReader("field", reader, closeCalls);
        }

        @Override
        public IndexSearcher wrap(IndexSearcher searcher) throws EngineException {
            return searcher;
        }
    };
    final ConcurrentHashMap<Object, TopDocs> cache = new ConcurrentHashMap<>();
    try (Engine.Searcher engineSearcher = new Engine.Searcher("foo", searcher)) {
        try (Engine.Searcher wrap = wrapper.wrap(engineSearcher)) {
            ElasticsearchDirectoryReader.addReaderCloseListener(wrap.getDirectoryReader(), reader -> {
                cache.remove(reader.getCoreCacheKey());
            });
            TopDocs search = wrap.searcher().search(new TermQuery(new Term("field", "doc")), 1);
            cache.put(wrap.reader().getCoreCacheKey(), search);
        }
    }
    assertEquals(1, closeCalls.get());
    assertEquals(1, cache.size());
    IOUtils.close(open, writer, dir);
    assertEquals(0, cache.size());
    assertEquals(1, closeCalls.get());
}

Example 32 with DirectoryReader

use of org.apache.lucene.index.DirectoryReader in project elasticsearch by elastic.

the class IndexSearcherWrapperTests method testNoWrap.

public void testNoWrap() throws IOException {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = newIndexWriterConfig();
    IndexWriter writer = new IndexWriter(dir, iwc);
    Document doc = new Document();
    doc.add(new StringField("id", "1", random().nextBoolean() ? Field.Store.YES : Field.Store.NO));
    doc.add(new TextField("field", "doc", random().nextBoolean() ? Field.Store.YES : Field.Store.NO));
    writer.addDocument(doc);
    DirectoryReader open = ElasticsearchDirectoryReader.wrap(DirectoryReader.open(writer), new ShardId("foo", "_na_", 1));
    IndexSearcher searcher = new IndexSearcher(open);
    assertEquals(1, searcher.search(new TermQuery(new Term("field", "doc")), 1).totalHits);
    searcher.setSimilarity(iwc.getSimilarity());
    IndexSearcherWrapper wrapper = new IndexSearcherWrapper();
    try (Engine.Searcher engineSearcher = new Engine.Searcher("foo", searcher)) {
        final Engine.Searcher wrap = wrapper.wrap(engineSearcher);
        assertSame(wrap, engineSearcher);
    }
    IOUtils.close(open, writer, dir);
}

Example 33 with DirectoryReader

use of org.apache.lucene.index.DirectoryReader in project elasticsearch by elastic.

the class ShardUtilsTests method testExtractShardId.

public void testExtractShardId() throws IOException {
    BaseDirectoryWrapper dir = newDirectory();
    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig());
    writer.commit();
    ShardId id = new ShardId("foo", "_na_", random().nextInt());
    try (DirectoryReader reader = DirectoryReader.open(writer)) {
        ElasticsearchDirectoryReader wrap = ElasticsearchDirectoryReader.wrap(reader, id);
        assertEquals(id, ShardUtils.extractShardId(wrap));
    }
    final int numDocs = 1 + random().nextInt(5);
    for (int i = 0; i < numDocs; i++) {
        Document d = new Document();
        d.add(newField("name", "foobar", StringField.TYPE_STORED));
        writer.addDocument(d);
        if (random().nextBoolean()) {
            writer.commit();
        }
    }
    try (DirectoryReader reader = DirectoryReader.open(writer)) {
        ElasticsearchDirectoryReader wrap = ElasticsearchDirectoryReader.wrap(reader, id);
        assertEquals(id, ShardUtils.extractShardId(wrap));
        CompositeReaderContext context = wrap.getContext();
        for (LeafReaderContext leaf : context.leaves()) {
            assertEquals(id, ShardUtils.extractShardId(leaf.reader()));
        }
    }
    IOUtils.close(writer, dir);
}

Example 34 with DirectoryReader

use of org.apache.lucene.index.DirectoryReader in project elasticsearch by elastic.

the class NestedSortingTests method testDuel.

public void testDuel() throws Exception {
    final int numDocs = scaledRandomIntBetween(100, 1000);
    for (int i = 0; i < numDocs; ++i) {
        final int numChildren = randomInt(2);
        List<Document> docs = new ArrayList<>(numChildren + 1);
        for (int j = 0; j < numChildren; ++j) {
            Document doc = new Document();
            doc.add(new StringField("f", TestUtil.randomSimpleString(random(), 2), Field.Store.NO));
            doc.add(new StringField("__type", "child", Field.Store.NO));
            docs.add(doc);
        }
        if (randomBoolean()) {
            docs.add(new Document());
        }
        Document parent = new Document();
        parent.add(new StringField("__type", "parent", Field.Store.NO));
        docs.add(parent);
        writer.addDocuments(docs);
        if (rarely()) {
            // we need to have a bit more segments than what RandomIndexWriter would do by default
            DirectoryReader.open(writer).close();
        }
    }
    writer.commit();
    MultiValueMode sortMode = randomFrom(Arrays.asList(MultiValueMode.MIN, MultiValueMode.MAX));
    DirectoryReader reader = DirectoryReader.open(writer);
    reader = ElasticsearchDirectoryReader.wrap(reader, new ShardId(indexService.index(), 0));
    IndexSearcher searcher = new IndexSearcher(reader);
    PagedBytesIndexFieldData indexFieldData1 = getForField("f");
    IndexFieldData<?> indexFieldData2 = NoOrdinalsStringFieldDataTests.hideOrdinals(indexFieldData1);
    final String missingValue = randomBoolean() ? null : TestUtil.randomSimpleString(random(), 2);
    final int n = randomIntBetween(1, numDocs + 2);
    final boolean reverse = randomBoolean();
    final TopDocs topDocs1 = getTopDocs(searcher, indexFieldData1, missingValue, sortMode, n, reverse);
    final TopDocs topDocs2 = getTopDocs(searcher, indexFieldData2, missingValue, sortMode, n, reverse);
    for (int i = 0; i < topDocs1.scoreDocs.length; ++i) {
        final FieldDoc fieldDoc1 = (FieldDoc) topDocs1.scoreDocs[i];
        final FieldDoc fieldDoc2 = (FieldDoc) topDocs2.scoreDocs[i];
        assertEquals(fieldDoc1.doc, fieldDoc2.doc);
        assertArrayEquals(fieldDoc1.fields, fieldDoc2.fields);
    }
    searcher.getIndexReader().close();
}

Example 35 with DirectoryReader

use of org.apache.lucene.index.DirectoryReader in project elasticsearch by elastic.

the class IndicesRequestCacheTests method testInvalidate.

public void testInvalidate() throws Exception {
    ShardRequestCache requestCacheStats = new ShardRequestCache();
    IndicesRequestCache cache = new IndicesRequestCache(Settings.EMPTY);
    Directory dir = newDirectory();
    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig());
    writer.addDocument(newDoc(0, "foo"));
    DirectoryReader reader = ElasticsearchDirectoryReader.wrap(DirectoryReader.open(writer), new ShardId("foo", "bar", 1));
    TermQueryBuilder termQuery = new TermQueryBuilder("id", "0");
    AtomicBoolean indexShard = new AtomicBoolean(true);
    // initial cache
    TestEntity entity = new TestEntity(requestCacheStats, indexShard);
    Loader loader = new Loader(reader, 0);
    BytesReference value = cache.getOrCompute(entity, loader, reader, termQuery.buildAsBytes());
    assertEquals("foo", value.streamInput().readString());
    assertEquals(0, requestCacheStats.stats().getHitCount());
    assertEquals(1, requestCacheStats.stats().getMissCount());
    assertEquals(0, requestCacheStats.stats().getEvictions());
    assertFalse(loader.loadedFromCache);
    assertEquals(1, cache.count());
    // cache hit
    entity = new TestEntity(requestCacheStats, indexShard);
    loader = new Loader(reader, 0);
    value = cache.getOrCompute(entity, loader, reader, termQuery.buildAsBytes());
    assertEquals("foo", value.streamInput().readString());
    assertEquals(1, requestCacheStats.stats().getHitCount());
    assertEquals(1, requestCacheStats.stats().getMissCount());
    assertEquals(0, requestCacheStats.stats().getEvictions());
    assertTrue(loader.loadedFromCache);
    assertEquals(1, cache.count());
    assertTrue(requestCacheStats.stats().getMemorySize().bytesAsInt() > value.length());
    assertEquals(1, cache.numRegisteredCloseListeners());
    // load again after invalidate
    entity = new TestEntity(requestCacheStats, indexShard);
    loader = new Loader(reader, 0);
    cache.invalidate(entity, reader, termQuery.buildAsBytes());
    value = cache.getOrCompute(entity, loader, reader, termQuery.buildAsBytes());
    assertEquals("foo", value.streamInput().readString());
    assertEquals(1, requestCacheStats.stats().getHitCount());
    assertEquals(2, requestCacheStats.stats().getMissCount());
    assertEquals(0, requestCacheStats.stats().getEvictions());
    assertFalse(loader.loadedFromCache);
    assertEquals(1, cache.count());
    assertTrue(requestCacheStats.stats().getMemorySize().bytesAsInt() > value.length());
    assertEquals(1, cache.numRegisteredCloseListeners());
    // release
    if (randomBoolean()) {
        reader.close();
    } else {
        // closed shard but reader is still open
        indexShard.set(false);
        cache.clear(entity);
    }
    cache.cleanCache();
    assertEquals(1, requestCacheStats.stats().getHitCount());
    assertEquals(2, requestCacheStats.stats().getMissCount());
    assertEquals(0, requestCacheStats.stats().getEvictions());
    assertEquals(0, cache.count());
    assertEquals(0, requestCacheStats.stats().getMemorySize().bytesAsInt());
    IOUtils.close(reader, writer, dir, cache);
    assertEquals(0, cache.numRegisteredCloseListeners());
}