Android Open Source - GeoTagger Tags At Point Servlet

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Back to project page GeoTagger.

License

The source code is released under:

GNU General Public License

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Java Source Code

package horizon.geotagger.server;
/* w  w w.ja va  2 s  . c om*/
import horizon.geotagger.GeoUtils;
import horizon.geotagger.PMF;
import horizon.geotagger.model.Place;
import horizon.geotagger.model.Tag;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import javax.jdo.PersistenceManager;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class TagsAtPointServlet 
extends ServletWithView 
{
  private static final String view = "/WEB-INF/jsp/tagsAtPoint.jsp";
  
  private static final long serialVersionUID = -7887869696386109335L;
  
  private DataBinder binder = new DataBinder();
  
  @SuppressWarnings("unchecked")
  @Override
  protected ModelAndView handleGet(
      HttpServletRequest request, HttpServletResponse response) 
  throws Exception 
  {
    TagsAtPointData data = new TagsAtPointData();
    binder.bind(data, request.getParameterMap());
    
    HashMap<String, Object> model = new HashMap<String, Object>();
        
    PersistenceManager pm = PMF.get().getPersistenceManager();
    
    double north = data.getLatitude() + GeoUtils.changeInLatitude(10);
    double south = data.getLatitude() - GeoUtils.changeInLatitude(10);
    
    double east = data.getLongitude() + GeoUtils.changeInLongitude(data.getLatitude(), 10);
    double west = data.getLongitude() - GeoUtils.changeInLongitude(data.getLatitude(), 10);
    
    List<Tag> tags = (List<Tag>)pm.newQuery(
        "SELECT FROM " + Tag.class.getName()).execute();
    
    ArrayList<Tag> matches = new ArrayList<Tag>();
    for(Tag t : tags)
    {
      Place p = t.getPlace();
      if(p.getLatitude() > south 
          && p.getLatitude() < north
          && p.getLongitude() > west
          && p.getLongitude() < east)
        matches.add(t);
    }
    model.put("tags", matches);
        
    return new ModelAndView(view, model);
  }
}

Java Source Code List