lucene/spatial-extras/src/test/org/apache/lucene/spatial/prefix/TestTermQueryPrefixGridStrategy.java

/*
 * 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
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 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.lucene.spatial.prefix;

import org.locationtech.spatial4j.context.SpatialContext;
import org.locationtech.spatial4j.shape.Shape;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.StoredField;
import org.apache.lucene.document.StringField;
import org.apache.lucene.spatial.SpatialTestCase;
import org.apache.lucene.spatial.prefix.tree.QuadPrefixTree;
import org.apache.lucene.spatial.query.SpatialArgsParser;
import org.junit.Test;

import java.io.IOException;
import java.util.Arrays;


public class TestTermQueryPrefixGridStrategy extends SpatialTestCase {

  @Test
  public void testNGramPrefixGridLosAngeles() throws IOException {
    SpatialContext ctx = SpatialContext.GEO;
    TermQueryPrefixTreeStrategy prefixGridStrategy = new TermQueryPrefixTreeStrategy(new QuadPrefixTree(ctx), "geo");

    Shape point = ctx.makePoint(-118.243680, 34.052230);

    Document losAngeles = new Document();
    losAngeles.add(new StringField("name", "Los Angeles", Field.Store.YES));
    for (Field field : prefixGridStrategy.createIndexableFields(point)) {
      losAngeles.add(field);
    }
    losAngeles.add(new StoredField(prefixGridStrategy.getFieldName(), point.toString()));//just for diagnostics

    addDocumentsAndCommit(Arrays.asList(losAngeles));

    // This won't work with simple spatial context...
    SpatialArgsParser spatialArgsParser = new SpatialArgsParser();
    // TODO... use a non polygon query
//    SpatialArgs spatialArgs = spatialArgsParser.parse(
//        "Intersects(POLYGON((-127.00390625 39.8125,-112.765625 39.98828125,-111.53515625 31.375,-125.94921875 30.14453125,-127.00390625 39.8125)))",
//        new SimpleSpatialContext());

//    Query query = prefixGridStrategy.makeQuery(spatialArgs, fieldInfo);
//    SearchResults searchResults = executeQuery(query, 1);
//    assertEquals(1, searchResults.numFound);
  }
}