bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/AutomaticUpdateScheduler.java - equinox/rt.equinox.p2 - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2008 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.equinox.internal.p2.ui.sdk;

 import java.util.Calendar;
 import org.eclipse.core.runtime.*;
 import org.eclipse.equinox.internal.p2.core.helpers.ServiceHelper;
 import org.eclipse.equinox.internal.p2.ui.sdk.prefs.PreferenceConstants;
 import org.eclipse.equinox.internal.provisional.p2.core.ProvisionException;
 import org.eclipse.equinox.internal.provisional.p2.ui.ProvUI;
 import org.eclipse.equinox.internal.provisional.p2.ui.model.ProfileElement;
 import org.eclipse.equinox.internal.provisional.p2.ui.policy.IQueryProvider;
 import org.eclipse.equinox.internal.provisional.p2.ui.query.ElementQueryDescriptor;
 import org.eclipse.equinox.internal.provisional.p2.updatechecker.IUpdateChecker;
 import org.eclipse.equinox.internal.provisional.p2.updatechecker.IUpdateListener;
 import org.eclipse.ui.IStartup;
 import org.eclipse.ui.statushandlers.StatusManager;

 /**
  * This plug-in is loaded on startup to fork a job that searches for new
  * plug-ins.
  */
 public class AutomaticUpdateScheduler implements IStartup {
 	// values are to be picked up from the arrays DAYS and HOURS
 	public static final String P_DAY = "day"; //$NON-NLS-1$

 	public static final String P_HOUR = "hour"; //$NON-NLS-1$

 	public static final String[] DAYS = {ProvSDKMessages.SchedulerStartup_day, ProvSDKMessages.SchedulerStartup_Monday, ProvSDKMessages.SchedulerStartup_Tuesday, ProvSDKMessages.SchedulerStartup_Wednesday, ProvSDKMessages.SchedulerStartup_Thursday, ProvSDKMessages.SchedulerStartup_Friday, ProvSDKMessages.SchedulerStartup_Saturday, ProvSDKMessages.SchedulerStartup_Sunday};

 	public static final String[] HOURS = {ProvSDKMessages.SchedulerStartup_1AM, ProvSDKMessages.SchedulerStartup_2AM, ProvSDKMessages.SchedulerStartup_3AM, ProvSDKMessages.SchedulerStartup_4AM, ProvSDKMessages.SchedulerStartup_5AM, ProvSDKMessages.SchedulerStartup_6AM, ProvSDKMessages.SchedulerStartup_7AM, ProvSDKMessages.SchedulerStartup_8AM, ProvSDKMessages.SchedulerStartup_9AM, ProvSDKMessages.SchedulerStartup_10AM, ProvSDKMessages.SchedulerStartup_11AM, ProvSDKMessages.SchedulerStartup_12PM, ProvSDKMessages.SchedulerStartup_1PM, ProvSDKMessages.SchedulerStartup_2PM, ProvSDKMessages.SchedulerStartup_3PM, ProvSDKMessages.SchedulerStartup_4PM, ProvSDKMessages.SchedulerStartup_5PM, ProvSDKMessages.SchedulerStartup_6PM, ProvSDKMessages.SchedulerStartup_7PM,
 			ProvSDKMessages.SchedulerStartup_8PM, ProvSDKMessages.SchedulerStartup_9PM, ProvSDKMessages.SchedulerStartup_10PM, ProvSDKMessages.SchedulerStartup_11PM, ProvSDKMessages.SchedulerStartup_12AM,};

 	private IUpdateListener listener = null;
 	private IUpdateChecker checker = null;
 	private String profileId;

 	/**
 	 * The constructor.
 	 */
 	public AutomaticUpdateScheduler() {
 		ProvSDKUIActivator.getDefault().setScheduler(this);
 		checker = (IUpdateChecker) ServiceHelper.getService(ProvSDKUIActivator.getContext(), IUpdateChecker.SERVICE_NAME);
 		if (checker == null) {
 			// Something did not initialize properly
 			IStatus status = new Status(IStatus.ERROR, ProvSDKUIActivator.PLUGIN_ID, ProvSDKMessages.AutomaticUpdateScheduler_UpdateNotInitialized);
 			ProvUI.reportStatus(status, StatusManager.LOG);
 			return;
 		}
 		try {
 			profileId = ProvSDKUIActivator.getSelfProfileId();
 		} catch (ProvisionException e) {
 			profileId = null;
 			if (e.getStatus() != null)
 				ProvUI.reportStatus(e.getStatus(), StatusManager.LOG);
 			else
 				ProvUI.handleException(e, null, StatusManager.LOG);
 			return;
 		}

 	}

 	public void earlyStartup() {
 		scheduleUpdate();
 	}

 	public void shutdown() {
 		removeUpdateListener();
 	}

 	public void rescheduleUpdate() {
 		removeUpdateListener();
 		Preferences pref = ProvSDKUIActivator.getDefault().getPluginPreferences();
 		String schedule = pref.getString(PreferenceConstants.PREF_AUTO_UPDATE_SCHEDULE);
 		// See if we have a scheduled check or startup only.  If it is
 		// startup only, there is nothing more to do now, a listener will
 		// be created on the next startup.
 		if (schedule.equals(PreferenceConstants.PREF_UPDATE_ON_STARTUP)) {
 			return;
 		}
 		scheduleUpdate();
 	}

 	private void scheduleUpdate() {
 		// Nothing to do if we don't know what profile we are checking
 		if (profileId == null)
 			return;
 		Preferences pref = ProvSDKUIActivator.getDefault().getPluginPreferences();
 		// See if automatic search is enabled at all
 		if (pref.getBoolean(PreferenceConstants.PREF_AUTO_UPDATE_ENABLED) == false)
 			return;
 		String schedule = pref.getString(PreferenceConstants.PREF_AUTO_UPDATE_SCHEDULE);
 		long delay = IUpdateChecker.ONE_TIME_CHECK;
 		long poll = IUpdateChecker.ONE_TIME_CHECK;
 		if (!schedule.equals(PreferenceConstants.PREF_UPDATE_ON_STARTUP)) {
 			delay = computeDelay(pref);
 			poll = computePoll(pref);
 		}
 		listener = ProvSDKUIActivator.getDefault().getAutomaticUpdater();
 		ElementQueryDescriptor descriptor = ProvSDKUIActivator.getDefault().getQueryProvider().getQueryDescriptor(new ProfileElement(profileId), IQueryProvider.INSTALLED_IUS);
 		checker.addUpdateCheck(profileId, descriptor.query, delay, poll, listener);

 	}

 	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 update check. 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;
 		}
 		// 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;
 	}

 	/*
 	 * Computes the number of milliseconds for the polling frequency.
 	 * We have already established that there is a schedule, vs. only
 	 * on startup.
 	 */
 	private long computePoll(Preferences pref) {

 		int target_d = getDay(pref);
 		if (target_d == -1) {
 			// Every 24 hours
 			return 24 * 60 * 60 * 1000;
 		}
 		return 7 * 24 * 60 * 60 * 1000;
 	}

 	private void removeUpdateListener() {
 		// Remove the current listener if there is one
 		if (listener != null && checker != null) {
 			checker.removeUpdateCheck(listener);
 			listener = null;
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2008 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.equinox.internal.p2.ui.sdk;

	import java.util.Calendar;
	import org.eclipse.core.runtime.*;
	import org.eclipse.equinox.internal.p2.core.helpers.ServiceHelper;
	import org.eclipse.equinox.internal.p2.ui.sdk.prefs.PreferenceConstants;
	import org.eclipse.equinox.internal.provisional.p2.core.ProvisionException;
	import org.eclipse.equinox.internal.provisional.p2.ui.ProvUI;
	import org.eclipse.equinox.internal.provisional.p2.ui.model.ProfileElement;
	import org.eclipse.equinox.internal.provisional.p2.ui.policy.IQueryProvider;
	import org.eclipse.equinox.internal.provisional.p2.ui.query.ElementQueryDescriptor;
	import org.eclipse.equinox.internal.provisional.p2.updatechecker.IUpdateChecker;
	import org.eclipse.equinox.internal.provisional.p2.updatechecker.IUpdateListener;
	import org.eclipse.ui.IStartup;
	import org.eclipse.ui.statushandlers.StatusManager;

	/**
	* This plug-in is loaded on startup to fork a job that searches for new
	* plug-ins.
	*/
	public class AutomaticUpdateScheduler implements IStartup {
	// values are to be picked up from the arrays DAYS and HOURS
	public static final String P_DAY = "day"; //$NON-NLS-1$

	public static final String P_HOUR = "hour"; //$NON-NLS-1$

	public static final String[] DAYS = {ProvSDKMessages.SchedulerStartup_day, ProvSDKMessages.SchedulerStartup_Monday, ProvSDKMessages.SchedulerStartup_Tuesday, ProvSDKMessages.SchedulerStartup_Wednesday, ProvSDKMessages.SchedulerStartup_Thursday, ProvSDKMessages.SchedulerStartup_Friday, ProvSDKMessages.SchedulerStartup_Saturday, ProvSDKMessages.SchedulerStartup_Sunday};

	public static final String[] HOURS = {ProvSDKMessages.SchedulerStartup_1AM, ProvSDKMessages.SchedulerStartup_2AM, ProvSDKMessages.SchedulerStartup_3AM, ProvSDKMessages.SchedulerStartup_4AM, ProvSDKMessages.SchedulerStartup_5AM, ProvSDKMessages.SchedulerStartup_6AM, ProvSDKMessages.SchedulerStartup_7AM, ProvSDKMessages.SchedulerStartup_8AM, ProvSDKMessages.SchedulerStartup_9AM, ProvSDKMessages.SchedulerStartup_10AM, ProvSDKMessages.SchedulerStartup_11AM, ProvSDKMessages.SchedulerStartup_12PM, ProvSDKMessages.SchedulerStartup_1PM, ProvSDKMessages.SchedulerStartup_2PM, ProvSDKMessages.SchedulerStartup_3PM, ProvSDKMessages.SchedulerStartup_4PM, ProvSDKMessages.SchedulerStartup_5PM, ProvSDKMessages.SchedulerStartup_6PM, ProvSDKMessages.SchedulerStartup_7PM,
	ProvSDKMessages.SchedulerStartup_8PM, ProvSDKMessages.SchedulerStartup_9PM, ProvSDKMessages.SchedulerStartup_10PM, ProvSDKMessages.SchedulerStartup_11PM, ProvSDKMessages.SchedulerStartup_12AM,};

	private IUpdateListener listener = null;
	private IUpdateChecker checker = null;
	private String profileId;

	/**
	* The constructor.
	*/
	public AutomaticUpdateScheduler() {
	ProvSDKUIActivator.getDefault().setScheduler(this);
	checker = (IUpdateChecker) ServiceHelper.getService(ProvSDKUIActivator.getContext(), IUpdateChecker.SERVICE_NAME);
	if (checker == null) {
	// Something did not initialize properly
	IStatus status = new Status(IStatus.ERROR, ProvSDKUIActivator.PLUGIN_ID, ProvSDKMessages.AutomaticUpdateScheduler_UpdateNotInitialized);
	ProvUI.reportStatus(status, StatusManager.LOG);
	return;
	}
	try {
	profileId = ProvSDKUIActivator.getSelfProfileId();
	} catch (ProvisionException e) {
	profileId = null;
	if (e.getStatus() != null)
	ProvUI.reportStatus(e.getStatus(), StatusManager.LOG);
	else
	ProvUI.handleException(e, null, StatusManager.LOG);
	return;
	}

	}

	public void earlyStartup() {
	scheduleUpdate();
	}

	public void shutdown() {
	removeUpdateListener();
	}

	public void rescheduleUpdate() {
	removeUpdateListener();
	Preferences pref = ProvSDKUIActivator.getDefault().getPluginPreferences();
	String schedule = pref.getString(PreferenceConstants.PREF_AUTO_UPDATE_SCHEDULE);
	// See if we have a scheduled check or startup only. If it is
	// startup only, there is nothing more to do now, a listener will
	// be created on the next startup.
	if (schedule.equals(PreferenceConstants.PREF_UPDATE_ON_STARTUP)) {
	return;
	}
	scheduleUpdate();
	}

	private void scheduleUpdate() {
	// Nothing to do if we don't know what profile we are checking
	if (profileId == null)
	return;
	Preferences pref = ProvSDKUIActivator.getDefault().getPluginPreferences();
	// See if automatic search is enabled at all
	if (pref.getBoolean(PreferenceConstants.PREF_AUTO_UPDATE_ENABLED) == false)
	return;
	String schedule = pref.getString(PreferenceConstants.PREF_AUTO_UPDATE_SCHEDULE);
	long delay = IUpdateChecker.ONE_TIME_CHECK;
	long poll = IUpdateChecker.ONE_TIME_CHECK;
	if (!schedule.equals(PreferenceConstants.PREF_UPDATE_ON_STARTUP)) {
	delay = computeDelay(pref);
	poll = computePoll(pref);
	}
	listener = ProvSDKUIActivator.getDefault().getAutomaticUpdater();
	ElementQueryDescriptor descriptor = ProvSDKUIActivator.getDefault().getQueryProvider().getQueryDescriptor(new ProfileElement(profileId), IQueryProvider.INSTALLED_IUS);
	checker.addUpdateCheck(profileId, descriptor.query, delay, poll, listener);

	}

	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 update check. 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;
	}
	// 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;
	}

	/*
	* Computes the number of milliseconds for the polling frequency.
	* We have already established that there is a schedule, vs. only
	* on startup.
	*/
	private long computePoll(Preferences pref) {

	int target_d = getDay(pref);
	if (target_d == -1) {
	// Every 24 hours
	return 24 * 60 * 60 * 1000;
	}
	return 7 * 24 * 60 * 60 * 1000;
	}

	private void removeUpdateListener() {
	// Remove the current listener if there is one
	if (listener != null && checker != null) {
	checker.removeUpdateCheck(listener);
	listener = null;
	}
	}
	}