LoadNewReleasesServiceBootReceiver.java

/**
 * Copyright (C) 2013 Johannes Schnatterer
 *
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This file is part of nusic.
 *
 * nusic 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.
 *
 * nusic 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 nusic.  If not, see <http://www.gnu.org/licenses/>.
 */
package info.schnatterer.nusic.android;

import info.schnatterer.nusic.android.service.LoadNewReleasesService;
import info.schnatterer.nusic.android.service.LoadNewReleasesService.LoadNewReleasesServiceScheduler;
import info.schnatterer.nusic.core.PreferencesService;
import info.schnatterer.nusic.util.DateUtil;

import java.util.Date;

import javax.inject.Inject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import roboguice.receiver.RoboBroadcastReceiver;
import android.content.Context;
import android.content.Intent;

/**
 * Broadcast receiver that schedules execution of {@link LoadNewReleasesService}
 * after device has been restarted.
 * 
 * @author schnatterer
 * 
 */
public class LoadNewReleasesServiceBootReceiver extends RoboBroadcastReceiver {
    private static final Logger LOG = LoggerFactory
            .getLogger(LoadNewReleasesServiceBootReceiver.class);

    private static final int BOOT_DELAY_MINUTES = 10;
    @Inject
    private PreferencesService preferenceService;
    @Inject
    private LoadNewReleasesServiceScheduler loadNewReleasesServiceScheduler;

    @Override
    public void handleReceive(final Context context, final Intent intent) {
        Date nextReleaseRefresh = preferenceService.getNextReleaseRefresh();
        LOG.debug("Boot Receiver: Boot completed!");

        if (nextReleaseRefresh == null || isHistorical(nextReleaseRefresh)) {
            // Delay start of service in order not to slow down device boot up
            Date delayedRefresh = DateUtil.addMinutes(BOOT_DELAY_MINUTES);
            LOG.debug("Boot Receiver: Delaying service to start at "
                    + delayedRefresh);
            loadNewReleasesServiceScheduler.schedule(
                    preferenceService.getRefreshPeriod(), delayedRefresh);
        } else {
            // Schedule service
            LOG.debug("Boot Receiver: Scheduling service to "
                    + nextReleaseRefresh);
            loadNewReleasesServiceScheduler.schedule(
                    preferenceService.getRefreshPeriod(), nextReleaseRefresh);
        }
    }

    /**
     * @param d
     * @return <code>true</code> if <code>d</code> is in the past. Otherwise
     *         <code>false</code>.
     */
    private boolean isHistorical(Date d) {
        return d.before(new Date());
    }
}