de.micmun.android.workdaystarget.DaysLeftService.java Source code

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Here is the source code for de.micmun.android.workdaystarget.DaysLeftService.java

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/**
 * Copyright 2013-2014 by Michael Munzert
 *
 * This program is free software: you can redistribute it and/or modify it under 
 * the terms of the GNU >General Public License as published by the 
 * Free Software Foundation, either version 3 of the License, or >
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; >without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. >See the GNU General Public License 
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along with 
 * this program. If not, see >http://www.gnu.org/licenses/.
 */

package de.micmun.android.workdaystarget;

import android.app.IntentService;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.util.Log;
import android.widget.RemoteViews;

import org.json.JSONException;

import java.text.DateFormat;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

/**
 * Service to handle updates.
 *
 * @author MicMun
 * @version 1.2, 22.05.2014
 */
public class DaysLeftService extends IntentService {
    private static final String TAG = "DaysLeftService";

    /**
     * Action for intent, which starts the service.
     */
    public static final String ACTION_UPDATE = "de.micmun.android.workdaystarget.ACTION_UPDATE";

    /**
     * Creates a new DaysLeftService.
     */
    public DaysLeftService() {
        super(TAG);
    }

    /**
     * @see android.app.IntentService#onHandleIntent(android.content.Intent)
     */
    @Override
    protected void onHandleIntent(Intent arg0) {
        if (arg0.getAction().equals(ACTION_UPDATE)) {
            updateDays();
        }
    }

    /**
     * Updates the days to target.
     */
    private void updateDays() {
        AppWidgetManager appManager = AppWidgetManager.getInstance(this);
        ComponentName cName = new ComponentName(getApplicationContext(), DaysLeftProvider.class);
        int[] appIds = appManager.getAppWidgetIds(cName);

        DayCalculator dayCalc = new DayCalculator();
        if (!isOnline()) {
            try {
                Thread.sleep(60000);
            } catch (InterruptedException e) {
                Log.e(TAG, "Interrupted: " + e.getLocalizedMessage());
            }
        }

        for (int appId : appIds) {
            PrefManager pm = new PrefManager(this, appId);
            Calendar target = pm.getTarget();
            boolean[] chkDays = pm.getCheckedDays();
            int days = pm.getLastDiff();

            if (isOnline()) {
                try {
                    days = dayCalc.getDaysLeft(target.getTime(), chkDays);
                    Map<String, Object> saveMap = new HashMap<String, Object>();
                    Long diff = Long.valueOf(days);
                    saveMap.put(PrefManager.KEY_DIFF, diff);
                    pm.save(saveMap);
                } catch (JSONException e) {
                    Log.e(TAG, "ERROR holidays: " + e.getLocalizedMessage());
                }
            } else {
                Log.e(TAG, "No internet connection!");
            }
            RemoteViews rv = new RemoteViews(this.getPackageName(), R.layout.appwidget_layout);
            DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
            String targetStr = df.format(target.getTime());
            rv.setTextViewText(R.id.target, targetStr);
            String dayStr = String.format(Locale.getDefault(), "%d %s", days,
                    getResources().getString(R.string.unit));
            rv.setTextViewText(R.id.dayCount, dayStr);

            // put widget id into intent
            Intent configIntent = new Intent(this, ConfigActivity.class);
            configIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            configIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            configIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appId);
            configIntent.setData(Uri.parse(configIntent.toUri(Intent.URI_INTENT_SCHEME)));
            PendingIntent pendIntent = PendingIntent.getActivity(this, 0, configIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT);
            rv.setOnClickPendingIntent(R.id.widgetLayout, pendIntent);

            // update widget
            appManager.updateAppWidget(appId, rv);
        }
    }

    /**
     * Returns <code>true</code>, if you are connected to the internet.
     *
     * @return <code>true</code>, if connected to the internet.
     */
    private boolean isOnline() {
        boolean ret = false;
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = cm.getActiveNetworkInfo();

        if (ni != null && ni.isConnected() && !ni.isRoaming())
            ret = true;

        return ret;
    }
}