Android Open Source - Grocery-Mate Json Processor Async Task

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Back to project page Grocery-Mate.

License

The source code is released under:

Apache License

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Java Source Code

/*
* Copyright (C) 2011 iMellon//from   w w  w  . j ava  2  s .  com
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/

package com.imellon.android.grocerymate.io;

import java.util.Calendar;

import org.json.JSONException;

import com.imellon.android.grocerymate.model.AbstractObjectType;
import com.imellon.android.grocerymate.model.AbstractObjectType.DataType;
import com.imellon.android.grocerymate.util.UserTask;

import android.widget.TextView;

/**
* @author Christos Papazafeiropoulos, Dimitris Makris
*/

public class JsonProcessorAsyncTask extends UserTask<String, Integer, AbstractObjectType> {
  
  public enum DATA_HANDLER_ERROR{
    PARSE_ERROR,
    NO_ERROR
  }
  
  private long comTime = 0; 
  
  private TextView tv;
  
  private JsonProcessorAsyncTaskInterface iFace = null;
  
  private static final String TAG = JsonProcessorAsyncTask.class.getSimpleName();

  public JsonProcessorAsyncTask(JsonProcessorAsyncTaskInterface iface, TextView t) {
    iFace = iface;
    tv = t;
  }

  @Override
  public void onPreExecute() {
    comTime = Calendar.getInstance().getTimeInMillis();
  }

  @Override
  public AbstractObjectType doInBackground(String... urls) {
    
    AbstractObjectType hm = null;
    try{
      String result = urls[0];
      String json_parser = urls[1];
      switch (DataType.valueOf(json_parser)) {
      case PRODUCT_LIST:
        hm = JsonParser.parseProductsList(result);
        break;
      case PRODUCT_PRICES:
        hm = JsonParser.parseProductPricesList(result);
        break;
      case POI:
        hm = JsonParser.parsePoi(result);
      case TERRITORY_LIST:
        hm = JsonParser.parseTerritoryList(result);
      case POI_LIST:
        hm = JsonParser.parsePoiList(result);
      case PRODUCT_PRICES_COMPANY_BASED:
        hm = JsonParser.parseCompanyPoiPriceList(result);
      default:
        break;
      }
      
      
    }catch(JSONException e){
      e.printStackTrace();
      return null;
    }
    return hm;
  }

  @Override
  public void onPostExecute(AbstractObjectType i) {
    if(i == null){
      iFace.onErrorOccured(DATA_HANDLER_ERROR.PARSE_ERROR);
    }else{
      if (tv != null)
        iFace.onTaskFinished(i, tv);
      else
        iFace.onTaskFinished(i);
    }
    
  }

}

Java Source Code List