Android Open Source - WeatherBar Open Weather

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License

The source code is released under:

MIT License

Java Source Code

package com.cjbarker.wb.ws;
//from  w  w w.  ja  v  a2s.  c  o m
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.Map;

import org.apache.http.HttpStatus;

import android.util.Log;

import com.cjbarker.wb.Util;
import com.json.parsers.JSONParser;
import com.json.parsers.JsonParserFactory;

public class OpenWeather implements Weather {
  
  public static final String BASE_API_URL = "http://api.openweathermap.org/data/2.5/weather?";
  public static final String ATX_API_URL = "http://api.openweathermap.org/data/2.5/weather?q=Austin,Tx&units=imperial";
  private static final String TAG = "OpenWeather";
  
  private String apiUrl;
  
  public OpenWeather() {
    this(ATX_API_URL);
  }
  
  public OpenWeather(String apiUrl) {
    this.apiUrl = apiUrl;
  }
  
  // TODO provide getToday to include unit temperature setting
  public Forecast getToday(Location loc) {
    if (loc == null) {
      return null;
    }
    
    final String url = buildQueryUrl(loc);
    
    ClientRequest request = new ClientRequest(url);
    ClientResponse response = null;
    String result = null;
    
      try {
        response = request.sendRequest(ClientRequest.Method.GET);
        if (response != null && HttpStatus.SC_OK == response.getResponseCode()) {
          result = new String(response.getResponseMessage());
        }
        else {
          Log.w(TAG, "Failed to successfullyi get response from URL: " + url);
          if (response != null) Log.d(TAG, "Http Status Code: " + response.getResponseCode());
        }
      }
      catch (IOException ioe) {
        Log.e(TAG, "IOException on HTTP request: " + ioe.getMessage());
      }
          
      Unit tempUnit = url.contains("units=imperial") ? Unit.Farenheit : Unit.Celcius;
    Forecast fc = parse(result, tempUnit);
    return fc;
  }
  
  public Forecast getForecast(Location loc, long daytime) {
    if (loc == null || daytime <= 0) {
      return null;
    }
    Forecast fc = new Forecast();
    return fc;
  }
  
  public void setApiUrl(String uri) {
    this.apiUrl = uri;
  }
  
  public String getApiUrl() {
    return BASE_API_URL;
  }
  
  private String buildQueryUrl(Location loc) {
    if (loc == null || loc.isEmpty()) {
      return null;
    }
    
    if (this.apiUrl.contains("q=")) {
      return this.apiUrl;
    }
    
    StringBuffer sb = new StringBuffer();
    sb.append(this.apiUrl + "q=");
    
    if (!Util.isEmpty(loc.city) && !Util.isEmpty(loc.state)) {
      sb.append(loc.city + "," + loc.state);
    }
    else {
      sb.append(loc.latitude + "," + loc.longitude);
    }
    
    // TODO read SharedPrefs and see what units set
    sb.append("&units=imperial");
    
    return sb.toString();
  }
  
  private Forecast parse(String json, Unit tempUnit) {
    if (Util.isEmpty(json)) {
      return null;
    }
    
    Forecast fc = new Forecast();
    
    JsonParserFactory factory=JsonParserFactory.getInstance();
    JSONParser parser=factory.newJsonParser();
    Map jsonData = parser.parseJson(json);
    
    Location loc = new Location();
    Map coord = (Map)jsonData.get("coord");
    loc.latitude = Double.parseDouble( (String)coord.get("lat") );
    loc.longitude = Double.parseDouble( (String)coord.get("lon") );
  
    Sun sun = new Sun();
    Map sys = (Map)jsonData.get("sys");
    int rise = Integer.parseInt( (String)sys.get("sunrise") );
    int set = Integer.parseInt( (String)sys.get("sunset") );
    sun.rise = Util.getLocalTime((long)rise * 1000);
    sun.set = Util.getLocalTime((long)set * 1000);
        
    Map weather = (Map)( (ArrayList)jsonData.get("weather") ).get(0);
    fc.cloudDescp = (String)weather.get("description"); 
    
    Map main = (Map)jsonData.get("main");
    Temperature temp = new Temperature();
    temp.current = Double.parseDouble( (String)main.get("temp") );
    temp.low = Double.parseDouble( (String)main.get("temp_min") );
    temp.hi = Double.parseDouble( (String)main.get("temp_max") );
    temp.unit = tempUnit;
    fc.humidity = Integer.parseInt( (String)main.get("humidity") );
    
    Map w = (Map)jsonData.get("wind");
    Wind wind = new Wind();
    wind.speed = Double.parseDouble( (String)w.get("speed") );
    wind.gust = Double.parseDouble( (String)w.get("gust") );
    wind.degree = Integer.parseInt( (String)w.get("deg") );

    fc.location = loc;
    fc.sun = sun;
    fc.wind = wind;
    fc.temperature = temp;
    //fc.precipitation;
    return fc;
  }
}

Java Source Code List

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