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

Example 46 with IndexReader

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

the class ScriptedMetricAggregatorTests method testNoDocs.

@SuppressWarnings("unchecked")
public void testNoDocs() throws IOException {
    try (Directory directory = newDirectory()) {
        try (RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory)) {
        // intentionally not writing any docs
        }
        try (IndexReader indexReader = DirectoryReader.open(directory)) {
            ScriptedMetricAggregationBuilder aggregationBuilder = new ScriptedMetricAggregationBuilder(AGG_NAME);
            // map script is mandatory, even if its not used in this case
            aggregationBuilder.mapScript(MAP_SCRIPT);
            ScriptedMetric scriptedMetric = search(newSearcher(indexReader, true, true), new MatchAllDocsQuery(), aggregationBuilder);
            assertEquals(AGG_NAME, scriptedMetric.getName());
            assertNotNull(scriptedMetric.aggregation());
            assertEquals(0, ((HashMap<Object, String>) scriptedMetric.aggregation()).size());
        }
    }
}

Example 47 with IndexReader

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

the class AvgAggregatorTests method testCase.

private void testCase(Query query, CheckedConsumer<RandomIndexWriter, IOException> buildIndex, Consumer<InternalAvg> verify) throws IOException {
    Directory directory = newDirectory();
    RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
    buildIndex.accept(indexWriter);
    indexWriter.close();
    IndexReader indexReader = DirectoryReader.open(directory);
    IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
    AvgAggregationBuilder aggregationBuilder = new AvgAggregationBuilder("_name").field("number");
    MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
    fieldType.setName("number");
    try (AvgAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
        aggregator.preCollection();
        indexSearcher.search(query, aggregator);
        aggregator.postCollection();
        verify.accept((InternalAvg) aggregator.buildAggregation(0L));
    }
    indexReader.close();
    directory.close();
}

Example 48 with IndexReader

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

the class GeoBoundsAggregatorTests method testEmpty.

public void testEmpty() throws Exception {
    try (Directory dir = newDirectory();
        RandomIndexWriter w = new RandomIndexWriter(random(), dir)) {
        GeoBoundsAggregationBuilder aggBuilder = new GeoBoundsAggregationBuilder("my_agg").field("field").wrapLongitude(false);
        MappedFieldType fieldType = new GeoPointFieldMapper.GeoPointFieldType();
        fieldType.setHasDocValues(true);
        fieldType.setName("field");
        try (IndexReader reader = w.getReader()) {
            IndexSearcher searcher = new IndexSearcher(reader);
            InternalGeoBounds bounds = search(searcher, new MatchAllDocsQuery(), aggBuilder, fieldType);
            assertTrue(Double.isInfinite(bounds.top));
            assertTrue(Double.isInfinite(bounds.bottom));
            assertTrue(Double.isInfinite(bounds.posLeft));
            assertTrue(Double.isInfinite(bounds.posRight));
            assertTrue(Double.isInfinite(bounds.negLeft));
            assertTrue(Double.isInfinite(bounds.negRight));
        }
    }
}

Example 49 with IndexReader

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

the class GeoBoundsAggregatorTests method testRandom.

public void testRandom() throws Exception {
    double top = Double.NEGATIVE_INFINITY;
    double bottom = Double.POSITIVE_INFINITY;
    double posLeft = Double.POSITIVE_INFINITY;
    double posRight = Double.NEGATIVE_INFINITY;
    double negLeft = Double.POSITIVE_INFINITY;
    double negRight = Double.NEGATIVE_INFINITY;
    int numDocs = randomIntBetween(50, 100);
    try (Directory dir = newDirectory();
        RandomIndexWriter w = new RandomIndexWriter(random(), dir)) {
        for (int i = 0; i < numDocs; i++) {
            Document doc = new Document();
            int numValues = randomIntBetween(1, 5);
            for (int j = 0; j < numValues; j++) {
                GeoPoint point = RandomGeoGenerator.randomPoint(random());
                if (point.getLat() > top) {
                    top = point.getLat();
                }
                if (point.getLat() < bottom) {
                    bottom = point.getLat();
                }
                if (point.getLon() >= 0 && point.getLon() < posLeft) {
                    posLeft = point.getLon();
                }
                if (point.getLon() >= 0 && point.getLon() > posRight) {
                    posRight = point.getLon();
                }
                if (point.getLon() < 0 && point.getLon() < negLeft) {
                    negLeft = point.getLon();
                }
                if (point.getLon() < 0 && point.getLon() > negRight) {
                    negRight = point.getLon();
                }
                doc.add(new LatLonDocValuesField("field", point.getLat(), point.getLon()));
            }
            w.addDocument(doc);
        }
        GeoBoundsAggregationBuilder aggBuilder = new GeoBoundsAggregationBuilder("my_agg").field("field").wrapLongitude(false);
        MappedFieldType fieldType = new GeoPointFieldMapper.GeoPointFieldType();
        fieldType.setHasDocValues(true);
        fieldType.setName("field");
        try (IndexReader reader = w.getReader()) {
            IndexSearcher searcher = new IndexSearcher(reader);
            InternalGeoBounds bounds = search(searcher, new MatchAllDocsQuery(), aggBuilder, fieldType);
            assertThat(bounds.top, closeTo(top, GEOHASH_TOLERANCE));
            assertThat(bounds.bottom, closeTo(bottom, GEOHASH_TOLERANCE));
            assertThat(bounds.posLeft, closeTo(posLeft, GEOHASH_TOLERANCE));
            assertThat(bounds.posRight, closeTo(posRight, GEOHASH_TOLERANCE));
            assertThat(bounds.negRight, closeTo(negRight, GEOHASH_TOLERANCE));
            assertThat(bounds.negLeft, closeTo(negLeft, GEOHASH_TOLERANCE));
        }
    }
}

Example 50 with IndexReader

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

the class MinAggregatorTests method testMinAggregator_sortedNumericDv.

public void testMinAggregator_sortedNumericDv() throws Exception {
    Directory directory = newDirectory();
    RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
    Document document = new Document();
    document.add(new SortedNumericDocValuesField("number", 9));
    document.add(new SortedNumericDocValuesField("number", 7));
    indexWriter.addDocument(document);
    document = new Document();
    document.add(new SortedNumericDocValuesField("number", 5));
    document.add(new SortedNumericDocValuesField("number", 3));
    indexWriter.addDocument(document);
    document = new Document();
    document.add(new SortedNumericDocValuesField("number", 1));
    document.add(new SortedNumericDocValuesField("number", -1));
    indexWriter.addDocument(document);
    indexWriter.close();
    IndexReader indexReader = DirectoryReader.open(directory);
    IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
    MinAggregationBuilder aggregationBuilder = new MinAggregationBuilder("_name").field("number");
    MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
    fieldType.setName("number");
    try (MinAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
        aggregator.preCollection();
        indexSearcher.search(new MatchAllDocsQuery(), aggregator);
        aggregator.postCollection();
        InternalMin result = (InternalMin) aggregator.buildAggregation(0L);
        assertEquals(-1.0, result.getValue(), 0);
    }
    indexReader.close();
    directory.close();
}