dataflow.feed.api.Weather.java Source code

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Here is the source code for dataflow.feed.api.Weather.java

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package dataflow.feed.api;

import dataflow.database.MySQLDb;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.Charset;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * Class which holds weather information
 * @author Johnnie Ho
 */
public class Weather {
    private int id;
    private String date;
    private String icon;
    private String clouds;
    private String minTemp;
    private String maxTemp;
    private String description;

    /**
     * Constructor class which constructs a weather object
     * @param id
     * @param date
     * @param icon
     * @param clouds
     * @param minTemp
     * @param maxTemp
     * @param description 
     */
    public Weather(int id, String date, String icon, String clouds, String minTemp, String maxTemp,
            String description) {
        this.id = id;
        this.date = date;
        this.icon = icon;
        this.clouds = clouds;
        this.minTemp = minTemp;
        this.maxTemp = maxTemp;
        this.description = description;

    }

    /**
     * Method which returns the icon of the current weather (sun icon, cloud icon etc.)
     * @return the icon of the current weather
     */
    public String getIcon() {
        return icon;
    }

    /**
     * Method which returns the min. temperature
     * @return the minimum temperature
     */
    public String getMinTemp() {
        return minTemp;
    }

    /**
     * Method which returns the max. temperature
     * @return the maximum temperature
     */
    public String getMaxTemp() {
        return maxTemp;
    }

    /**
     * Method which returns the cloud percentage
     * @return the cloud percentage
     */
    public String getClouds() {
        return clouds;
    }

    /**
     * Method which returns the description of the weather
     * @return the description of the weather
     */
    public String getDescription() {
        return description;
    }

    /**
     * Method which connects to the weather API and retrieves the weather from the day before today
     */
    public static void getWeather() {
        String key = "c6aee37b80d801b44279ac16374db";
        Calendar fromTime = Calendar.getInstance();
        Date weatherDate = new Date();
        for (int i = 1; i < 7; i++) {
            weatherDate.setTime(weatherDate.getTime() - (86400000));
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            String date = format.format(weatherDate);
            String jsonString = callURL(
                    "https://api.worldweatheronline.com/free/v2/past-weather.ashx?q=Rotterdam&format=json&tp=24&key=c6aee37b80d801b44279ac16374db&date="
                            + date);
            try {
                MySQLDb db = new MySQLDb();
                JSONObject jsonObject = new JSONObject(jsonString).getJSONObject("data");
                db.insertWeather(date, jsonObject);
            } catch (JSONException e) {
                throw e;
            }
            try {
                Thread.sleep(250);
            } catch (InterruptedException ex) {
                Logger.getLogger(Weather.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    public static void getWeatherByDay(String date) {
        String key = "c6aee37b80d801b44279ac16374db";
        String jsonString = callURL(
                "https://api.worldweatheronline.com/free/v2/past-weather.ashx?q=Rotterdam&format=json&tp=24&key=c6aee37b80d801b44279ac16374db&date="
                        + date);
        try {
            MySQLDb db = new MySQLDb();
            JSONObject jsonObject = new JSONObject(jsonString).getJSONObject("data");
            db.insertWeather(date, jsonObject);
        } catch (JSONException e) {
            e.getMessage();
        }
    }

    /**
     * Method which builds the string of the URL to call
     * @param myURL the URL which must become a callURL
     * @return 
     */
    public static String callURL(String myURL) {
        //System.out.println("Requested URL:" + myURL);
        StringBuilder sb = new StringBuilder();
        URLConnection urlConn = null;
        InputStreamReader in = null;
        try {
            URL url = new URL(myURL);
            urlConn = url.openConnection();
            if (urlConn != null)
                urlConn.setReadTimeout(60 * 1000);
            if (urlConn != null && urlConn.getInputStream() != null) {
                in = new InputStreamReader(urlConn.getInputStream(), Charset.defaultCharset());
                BufferedReader bufferedReader = new BufferedReader(in);
                if (bufferedReader != null) {
                    int cp;
                    while ((cp = bufferedReader.read()) != -1) {
                        sb.append((char) cp);
                    }
                    bufferedReader.close();
                }
            }
            in.close();
        } catch (Exception e) {
            throw new RuntimeException("Exception while calling URL:" + myURL, e);
        }

        return sb.toString();
    }
}