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- /*
- * Copyright (c) 2006-2013 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.updater;
-
- import com.dmdirc.config.IdentityManager;
- import com.dmdirc.interfaces.config.AggregateConfigProvider;
- import com.dmdirc.logger.ErrorLevel;
- import com.dmdirc.logger.Logger;
- import com.dmdirc.updater.manager.CachingUpdateManager;
- import com.dmdirc.updater.manager.UpdateStatus;
-
- import java.util.Date;
- import java.util.Timer;
- import java.util.TimerTask;
- import java.util.concurrent.Semaphore;
-
- import lombok.Getter;
-
- /**
- * The update checker contacts the DMDirc website to check to see if there
- * are any updates available.
- */
- public final class UpdateChecker implements Runnable {
-
- /** The domain to use for updater settings. */
- private static final String DOMAIN = "updater";
-
- /** Semaphore used to prevent multiple invocations. */
- private static final Semaphore MUTEX = new Semaphore(1);
-
- /** Our timer. */
- private static Timer timer = new Timer("Update Checker Timer");
-
- /** The update manager to use. */
- @Getter
- private static CachingUpdateManager manager;
-
- /** {@inheritDoc} */
- @Override
- public void run() {
- if (!MUTEX.tryAcquire()) {
- // Duplicate invocation
-
- return;
- }
-
- final AggregateConfigProvider config = IdentityManager.getIdentityManager().getGlobalConfiguration();
-
- if (!config.getOptionBool(DOMAIN, "enable")) {
- IdentityManager.getIdentityManager().getUserSettings().setOption(DOMAIN,
- "lastcheck", String.valueOf((int) (new Date().getTime() / 1000)));
-
- MUTEX.release();
- initTimer();
- return;
- }
-
- manager.checkForUpdates();
-
- MUTEX.release();
-
- IdentityManager.getIdentityManager().getUserSettings().setOption(DOMAIN,
- "lastcheck", String.valueOf((int) (new Date().getTime() / 1000)));
-
- UpdateChecker.initTimer();
-
- if (config.getOptionBool(DOMAIN, "autoupdate")) {
- for (UpdateComponent component : manager.getComponents()) {
- if (manager.getStatus(component) == UpdateStatus.UPDATE_PENDING) {
- manager.install(component);
- }
- }
- } else if (config.getOptionBool(DOMAIN, "autodownload")) {
- for (UpdateComponent component : manager.getComponents()) {
- if (manager.getStatus(component) == UpdateStatus.UPDATE_PENDING) {
- manager.retrieve(component);
- }
- }
- }
- }
-
- /**
- * Initialises the update checker. Sets a timer to check based on the
- * frequency specified in the config.
- *
- * @param manager Manager to monitor updates
- */
- public static void init(final CachingUpdateManager manager) {
- UpdateChecker.manager = manager;
- initTimer();
- }
-
- /**
- * Initialises the timer to check for updates.
- *
- * @since 0.6.5
- */
- protected static void initTimer() {
- final int last = IdentityManager.getIdentityManager().getGlobalConfiguration()
- .getOptionInt(DOMAIN, "lastcheck");
- final int freq = IdentityManager.getIdentityManager().getGlobalConfiguration()
- .getOptionInt(DOMAIN, "frequency");
- final int timestamp = (int) (new Date().getTime() / 1000);
- int time = 0;
-
- if (last + freq > timestamp) {
- time = last + freq - timestamp;
- }
-
- if (time > freq || time < 0) {
- Logger.userError(ErrorLevel.LOW, "Attempted to schedule update check "
- + (time < 0 ? "in the past" : "too far in the future")
- + ", rescheduling.");
- time = 1;
- }
-
- timer.cancel();
- timer = new Timer("Update Checker Timer");
- timer.schedule(new TimerTask() {
- /** {@inheritDoc} */
- @Override
- public void run() {
- checkNow();
- }
- }, time * 1000);
- }
-
- /**
- * Checks for updates now.
- */
- public static void checkNow() {
- new Thread(new UpdateChecker(), "Update Checker thread").start();
- }
-
- }
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