code: /*******************************************************************************
   * Copyright (c) 2017 Voyager Search
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Apache License, Version 2.0 which
   * accompanies this distribution and is available at
   *    http://www.apache.org/licenses/LICENSE-2.0.txt
   ******************************************************************************/
  
  package org.locationtech.spatial4j.io.jackson;
  
  import java.io.IOException;
  import java.io.Reader;
  import java.text.ParseException;
  
  import org.locationtech.spatial4j.exception.InvalidShapeException;
  import org.locationtech.spatial4j.io.ShapeReader;
  import org.locationtech.spatial4j.shape.Shape;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  
  /**
   * This is really just a utility for testing
   */
  public class JacksonShapeReader implements ShapeReader {
  
    final ObjectMapper mapper;
    
    public JacksonShapeReader(ObjectMapper m) {
      this.mapper = m;
    }
    
    @Override
    public String getFormatName() {
      return getClass().getSimpleName();
    }
  
    @Override
    public Shape read(Object value) throws IOException, ParseException, InvalidShapeException {
      String str = value.toString();
      return mapper.readValue(str, Shape.class);
    }
  
    @Override
    public Shape readIfSupported(Object value) throws InvalidShapeException {
      try {
        return read(value);
      } 
      catch (IOException | ParseException e) {
        return null;
      }
    }
  
    @Override
    public Shape read(Reader reader) throws IOException, ParseException, InvalidShapeException {
      return mapper.readValue(reader, Shape.class);
    }
  }
  