| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.update.internal.scheduler; |
| |
| import java.util.*; |
| |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.runtime.jobs.*; |
| import org.eclipse.ui.*; |
| |
| |
| /** |
| * This plug-in is loaded on startup to fork a job that |
| * searches for new plug-ins. |
| */ |
| public class SchedulerStartup implements IStartup { |
| // Preferences |
| public static final String P_ENABLED = "enabled"; //$NON-NLS-1$ |
| |
| public static final String P_SCHEDULE = "schedule"; //$NON-NLS-1$ |
| public static final String VALUE_ON_STARTUP = "on-startup"; //$NON-NLS-1$ |
| public static final String VALUE_ON_SCHEDULE = "on-schedule"; //$NON-NLS-1$ |
| |
| public static final String P_DOWNLOAD = "download"; // value is true or false, default is false //$NON-NLS-1$ |
| |
| // values are to be picked up from the arryas DAYS and HOURS |
| public static final String P_DAY = "day"; //$NON-NLS-1$ |
| public static final String P_HOUR = "hour"; //$NON-NLS-1$ |
| |
| // Keeps track of running job |
| private Job job; |
| // Listener for job changes |
| private UpdateJobChangeAdapter jobListener; |
| |
| public static final String[] DAYS = |
| { |
| UpdateScheduler.getString("SchedulerStartup.day"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Monday"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Tuesday"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Wednesday"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Thursday"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Friday"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Saturday"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.Sunday") }; //$NON-NLS-1$ |
| |
| public static final String[] HOURS = |
| { |
| UpdateScheduler.getString("SchedulerStartup.1AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.2AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.3AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.4AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.5AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.6AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.7AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.8AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.9AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.10AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.11AM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.12PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.1PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.2PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.3PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.4PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.5PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.6PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.7PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.8PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.9PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.10PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.11PM"), //$NON-NLS-1$ |
| UpdateScheduler.getString("SchedulerStartup.12AM"), //$NON-NLS-1$ |
| }; |
| |
| private class UpdateJobChangeAdapter extends JobChangeAdapter { |
| public void done(IJobChangeEvent event) { |
| if (event.getJob() == SchedulerStartup.this.job) { |
| scheduleUpdateJob(); |
| } |
| } |
| } |
| |
| /** |
| * The constructor. |
| */ |
| public SchedulerStartup() { |
| UpdateScheduler.setScheduler(this); |
| jobListener = new UpdateJobChangeAdapter(); |
| Platform.getJobManager().addJobChangeListener(jobListener); |
| } |
| |
| public void earlyStartup() { |
| scheduleUpdateJob(); |
| } |
| |
| public void scheduleUpdateJob() { |
| Preferences pref = UpdateScheduler.getDefault().getPluginPreferences(); |
| // See if automatic search is enabled at all |
| if (pref.getBoolean(P_ENABLED) == false) |
| return; |
| |
| String schedule = pref.getString(P_SCHEDULE); |
| long delay = -1L; |
| if (schedule.equals(VALUE_ON_STARTUP)) |
| // have we already started a job ? |
| if (job == null) |
| delay = 0L; |
| else |
| delay = -1L; |
| else |
| delay = computeDelay(pref); |
| if (delay == -1L) |
| return; |
| startSearch(delay); |
| } |
| |
| private int getDay(Preferences pref) { |
| String day = pref.getString(P_DAY); |
| for (int d = 0; d < DAYS.length; d++) |
| if (DAYS[d].equals(day)) |
| switch (d) { |
| case 0 : |
| return -1; |
| case 1 : |
| return Calendar.MONDAY; |
| case 2 : |
| return Calendar.TUESDAY; |
| case 3 : |
| return Calendar.WEDNESDAY; |
| case 4 : |
| return Calendar.THURSDAY; |
| case 5 : |
| return Calendar.FRIDAY; |
| case 6 : |
| return Calendar.SATURDAY; |
| case 7 : |
| return Calendar.SUNDAY; |
| } |
| return -1; |
| } |
| |
| private int getHour(Preferences pref) { |
| String hour = pref.getString(P_HOUR); |
| for (int h = 0; h < HOURS.length; h++) |
| if (HOURS[h].equals(hour)) |
| return h + 1; |
| return 1; |
| } |
| /* |
| * Computes the number of milliseconds from this moment |
| * to the next scheduled search. If that moment has |
| * already passed, returns 0L (start immediately). |
| */ |
| private long computeDelay(Preferences pref) { |
| |
| int target_d = getDay(pref); |
| int target_h = getHour(pref); |
| |
| Calendar calendar = Calendar.getInstance(); |
| // may need to use the BootLoader locale |
| int current_d = calendar.get(Calendar.DAY_OF_WEEK); |
| // starts with SUNDAY |
| int current_h = calendar.get(Calendar.HOUR_OF_DAY); |
| int current_m = calendar.get(Calendar.MINUTE); |
| int current_s = calendar.get(Calendar.SECOND); |
| int current_ms = calendar.get(Calendar.MILLISECOND); |
| |
| long delay = 0L; // milliseconds |
| |
| if (target_d == -1) { |
| // Compute the delay for "every day at x o'clock" |
| // Is it now ? |
| if (target_h == current_h && current_m == 0 && current_s == 0) |
| return delay; |
| |
| int delta_h = target_h - current_h; |
| if (target_h <= current_h) |
| delta_h += 24; |
| delay = |
| ((delta_h * 60 - current_m) * 60 - current_s) * 1000 - current_ms; |
| return delay; |
| } else { |
| // Compute the delay for "every Xday at x o'clock" |
| // Is it now ? |
| if (target_d == current_d |
| && target_h == current_h |
| && current_m == 0 |
| && current_s == 0) |
| return delay; |
| |
| int delta_d = target_d - current_d; |
| if (target_d < current_d |
| || target_d == current_d |
| && (target_h < current_h |
| || target_h == current_h |
| && current_m > 0)) |
| delta_d += 7; |
| |
| delay = |
| (((delta_d * 24 + target_h - current_h) * 60 - current_m) * 60 - current_s)* 1000 - current_ms; |
| |
| return delay; |
| } |
| //return -1L; |
| } |
| |
| private void startSearch(long delay) { |
| if (job != null) { |
| // cancel old job. |
| // We need to deregister the listener first,so we won't automatically start another job |
| Platform.getJobManager().removeJobChangeListener(jobListener); |
| Platform.getJobManager().cancel(AutomaticUpdatesJob.family); |
| Platform.getJobManager().addJobChangeListener(jobListener); |
| } |
| job = new AutomaticUpdatesJob(); |
| job.schedule(delay); |
| } |
| } |
