package csip.utils;

import csip.ModelDataServiceConstants;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;

/**
 * PayloadCache
 *
 * @author od
 */
public class PayloadCache {

  LRUCache<Integer, JSONObject> cache = new LRUCache<>();


  public PayloadCache withSize(int size) {
    cache.setSize(size);
    return this;
  }


  public JSONObject getResult(JSONArray param) {
    JSONObject o = cache.get(param.hashCode());
    if (o != null) {
      try {
        o.getJSONObject(ModelDataServiceConstants.KEY_METAINFO)
            .put("cache", true);
      } catch (JSONException E) {
        System.err.println(E);
      }
    }
    return o;
  }


  public void putResult(JSONArray param, JSONObject result) {
    cache.put(param.hashCode(), result);
  }


  public void clear() {
    cache.clear();
  }

}