Examples of org.apache.lucene.spatial.SpatialStrategy

org.apache.lucene.spatial.SpatialStrategy
The SpatialStrategy encapsulates an approach to indexing and searching based on shapes.
Different implementations will support different features. A strategy should document these common elements:
- Can it index more than one shape per field?
- What types of shapes can be indexed?
- What types of query shapes can be used?
- What types of query operations are supported? This might vary per shape.
- Does it use the {@link org.apache.lucene.search.FieldCache}, or some other type of cache? When?
If a strategy only supports certain shapes at index or query time, then in general it will throw an exception if given an incompatible one. It will not be coerced into compatibility.
Note that a SpatialStrategy is not involved with the Lucene stored field values of shapes, which is immaterial to indexing & search.
Thread-safe. @lucene.experimental

   * Looks up the SpatialStrategy from the given round --
   * {@link org.apache.lucene.benchmark.byTask.utils.Config#getRoundNumber()}. It's an error
   * if it wasn't created already for this round -- when SpatialDocMaker is initialized.
   */
  public static SpatialStrategy getSpatialStrategy(int roundNumber) {
    SpatialStrategy result = spatialStrategyCache.get(roundNumber);
    if (result == null) {
      throw new IllegalStateException("Strategy should have been init'ed by SpatialDocMaker by now");
    }
    return result;
  }

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  }


  @Override
  public void setConfig(Config config, ContentSource source) {
    super.setConfig(config, source);
    SpatialStrategy existing = spatialStrategyCache.get(config.getRoundNumber());
    if (existing == null) {
      //new round; we need to re-initialize
      strategy = makeSpatialStrategy(config);
      spatialStrategyCache.put(config.getRoundNumber(), strategy);
      //TODO remove previous round config?

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   * Looks up the SpatialStrategy from the given round --
   * {@link org.apache.lucene.benchmark.byTask.utils.Config#getRoundNumber()}. It's an error
   * if it wasn't created already for this round -- when SpatialDocMaker is initialized.
   */
  public static SpatialStrategy getSpatialStrategy(int roundNumber) {
    SpatialStrategy result = spatialStrategyCache.get(roundNumber);
    if (result == null) {
      throw new IllegalStateException("Strategy should have been init'ed by SpatialDocMaker by now");
    }
    return result;
  }

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  }


  @Override
  public void setConfig(Config config, ContentSource source) {
    super.setConfig(config, source);
    SpatialStrategy existing = spatialStrategyCache.get(config.getRoundNumber());
    if (existing == null) {
      //new round; we need to re-initialize
      strategy = makeSpatialStrategy(config);
      spatialStrategyCache.put(config.getRoundNumber(), strategy);
      //TODO remove previous round config?

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   * Looks up the SpatialStrategy from the given round --
   * {@link org.apache.lucene.benchmark.byTask.utils.Config#getRoundNumber()}. It's an error
   * if it wasn't created already for this round -- when SpatialDocMaker is initialized.
   */
  public static SpatialStrategy getSpatialStrategy(int roundNumber) {
    SpatialStrategy result = spatialStrategyCache.get(roundNumber);
    if (result == null) {
      throw new IllegalStateException("Strategy should have been init'ed by SpatialDocMaker by now");
    }
    return result;
  }

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  }


  @Override
  public void setConfig(Config config, ContentSource source) {
    super.setConfig(config, source);
    SpatialStrategy existing = spatialStrategyCache.get(config.getRoundNumber());
    if (existing == null) {
      //new round; we need to re-initialize
      strategy = makeSpatialStrategy(config);
      spatialStrategyCache.put(config.getRoundNumber(), strategy);
      //TODO remove previous round config?

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        }
        return writer;
    }


    private SpatialStrategy getSpatialStrategy(String key) {
        SpatialStrategy strategy = spatial.get(key);
        if (strategy == null) {
            synchronized (spatial) {
                if (!spatial.containsKey(key)) {
//                    SpatialPrefixTree grid = new GeohashPrefixTree(ctx, GEO_MAX_LEVELS);
//                    strategy = new RecursivePrefixTreeStrategy(grid, key);

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        if (path.exists()) IOUtils.deleteDirectory(path,false);
        if (!path.exists() && path.isDirectory()) path.mkdirs();
    }


    private SpatialStrategy getSpatialStrategy(String key) {
        SpatialStrategy strategy = spatial.get(key);
        if (strategy==null) {
            final int maxLevels = 11;
            SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
            strategy = new RecursivePrefixTreeStrategy(grid, key);
            spatial.put(key,strategy);

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