/*
* SK's Minecraft Launcher
* Copyright (C) 2010, 2011 Albert Pham <http://www.sk89q.com>
*
* 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 com.sk89q.skmcl.launch;
import com.sk89q.skmcl.LauncherException;
import com.sk89q.skmcl.application.*;
import com.sk89q.skmcl.concurrent.AbstractWorker;
import com.sk89q.skmcl.concurrent.WorkUnit;
import com.sk89q.skmcl.profile.Profile;
import com.sk89q.skmcl.session.Identity;
import com.sk89q.skmcl.swing.SwingHelper;
import com.sk89q.skmcl.util.Environment;
import com.sk89q.skmcl.util.Persistence;
import lombok.Getter;
import lombok.NonNull;
import lombok.Setter;
import lombok.extern.java.Log;
import java.io.IOException;
import java.util.logging.Level;
import static com.sk89q.skmcl.util.SharedLocale._;
/**
* Launches a given application and then returns a {@link LaunchedProcess} on
* success, which must be managed by the calling routine.
*/
@Log
public class LaunchWorker extends AbstractWorker<LaunchedProcess> {
@Getter
private final Profile profile;
@Getter
private final Application application;
@Getter @Setter
private Environment environment = Environment.getInstance();
@Getter
private final Identity identity;
@Getter @Setter
private boolean offline;
public LaunchWorker(Profile profile, @NonNull Identity identity) {
this.profile = profile;
this.application = profile.getApplication();
this.identity = identity;
}
private Instance getInstance() throws InterruptedException, LauncherException {
while (true) {
try {
return application.getInstance(environment, offline);
} catch (OnlineRequiredException e) {
throw new LauncherException(e, _("launch.onlineModeRequired"));
} catch (ResolutionException e) {
if (offline || !e.isOfflineAvailable()) {
throw new LauncherException(
"Failed to resolve version",
_("launch.cannotResolveVersion"));
} else {
LaunchWorker.log.log(Level.WARNING, "Version resolution failure", e);
if (SwingHelper.confirmDialog(null,
_("launch.switchOffline"),
_("launch.switchOfflineTitle"))) {
offline = true;
} else {
throw new InterruptedException();
}
}
}
}
}
private LaunchedProcess launch(Instance instance)
throws IOException, UpdateRequiredException {
LaunchContext context = new LaunchContext(environment, identity);
return instance.launch(context);
}
private void update(Instance instance, WorkUnit workUnit)
throws LauncherException, InterruptedException {
try {
AbstractWorker<?> updater = instance.getUpdater();
updater.addObserver(workUnit);
updater.call();
} catch (InterruptedException e) {
throw e;
} catch (Exception e) {
throw new LauncherException(e, _("updater.updateFailed"));
}
}
@Override
public LaunchedProcess call() throws LauncherException, InterruptedException {
WorkUnit step1 = split(0.1),
step2 = split(0.8),
step3 = split(0.1);
// First resolve the version (i.e. latest -> which version is "latest"?)
setLocalizedTitle(_("launch.launchingTitle", profile.toString()));
step1.push(0, _("launch.checkingVersion"));
Instance instance = getInstance();
Persistence.commitAndForget(profile);
// Then attempt to launch
// But an update MAY be required
step2.push(0, _("launch.launching"));
try {
return launch(instance);
} catch (UpdateRequiredException e) {
// Update required, so we're going to go to the update step
} catch (IOException e) {
throw new LauncherException(e, _("launch.launchFailed"));
}
// If we're here, then it looks like an update is required
if (!offline) {
setLocalizedTitle(_("launch.updatingTitle", profile.toString()));
step2.push(0, _("launch.updating"));
update(instance, step2);
} else {
throw new LauncherException(
"Can't update if offline", _("launch.onlineModeRequired"));
}
// Update's done, so let's try launching one more time
setLocalizedTitle(_("launch.launchingTitle", profile.toString()));
step3.push(0, _("launch.launching"));
try {
return launch(instance);
} catch (UpdateRequiredException e) {
// This shouldn't be thrown here, since we've already updated,
// but perhaps something failed
throw new LauncherException(e, _("updater.launchFailed"));
} catch (IOException e) {
throw new LauncherException(e, _("updater.launchFailed"));
}
}
}