Java tutorial
/** * This file Copyright (c) 2005-2010 Aptana, Inc. This program is * dual-licensed under both the Aptana Public License and the GNU General * Public license. You may elect to use one or the other of these licenses. * * This program is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. Redistribution, except as permitted by whichever of * the GPL or APL you select, is prohibited. * * 1. For the GPL license (GPL), you can redistribute and/or modify this * program under the terms of the GNU General Public License, * Version 3, as published by the Free Software Foundation. You should * have received a copy of the GNU General Public License, Version 3 along * with this program; if not, write to the Free Software Foundation, Inc., 51 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Aptana provides a special exception to allow redistribution of this file * with certain other free and open source software ("FOSS") code and certain additional terms * pursuant to Section 7 of the GPL. You may view the exception and these * terms on the web at http://www.aptana.com/legal/gpl/. * * 2. For the Aptana Public License (APL), this program and the * accompanying materials are made available under the terms of the APL * v1.0 which accompanies this distribution, and is available at * http://www.aptana.com/legal/apl/. * * You may view the GPL, Aptana's exception and additional terms, and the * APL in the file titled license.html at the root of the corresponding * plugin containing this source file. * * Any modifications to this file must keep this entire header intact. */ package com.aptana.ide.core.ui; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.ui.internal.Workbench; import org.eclipse.ui.progress.UIJob; import org.eclipse.update.internal.ui.UpdateUI; import com.aptana.ide.core.IdeLog; import com.aptana.ide.core.StringUtils; import com.aptana.ide.core.preferences.IPreferenceConstants; /** * @author paul */ public class InitialRestartStartup { private static final String PROP_VM = "eclipse.vm"; //$NON-NLS-1$ private static final String PROP_VMARGS = "eclipse.vmargs"; //$NON-NLS-1$ private static final String PROP_COMMANDS = "eclipse.commands"; //$NON-NLS-1$ private static final String PROP_EXIT_CODE = "eclipse.exitcode"; //$NON-NLS-1$ private static final String PROP_EXIT_DATA = "eclipse.exitdata"; //$NON-NLS-1$ private static final String CMD_VMARGS = "-vmargs"; //$NON-NLS-1$ private static final String NEW_LINE = "\n"; //$NON-NLS-1$ public InitialRestartStartup() { } public static void start() { try { IPreferenceStore preferences = CoreUIPlugin.getDefault().getPreferenceStore(); IdeLog.logInfo(CoreUIPlugin.getDefault(), StringUtils.format(Messages.InitialRestartStartup_INF_CleanPreference, preferences.getBoolean(IPreferenceConstants.PREF_CLEAN_RESTART))); if (preferences.getBoolean(IPreferenceConstants.PREF_CLEAN_RESTART)) { preferences.setValue(IPreferenceConstants.PREF_CLEAN_RESTART, false); System.setProperty(PROP_EXIT_CODE, Integer.toString(24)); String commandLine = buildCommandLine("-clean"); //$NON-NLS-1$ if (commandLine != null) { IdeLog.logInfo(CoreUIPlugin.getDefault(), Messages.InitialRestartStartup_INF_NewCommandLine + commandLine); System.setProperty(PROP_EXIT_DATA, commandLine); restartIDE(); } } } catch (Exception e) { IdeLog.logError(CoreUIPlugin.getDefault(), Messages.InitialRestartStartup_ERR_UnableToCleanConfiguration, e); } IdeLog.flushCache(); } private static void restartIDE() { UIJob job = new UIJob(Messages.InitialRestartStartup_MSG_RestartingIDE) { public IStatus runInUIThread(IProgressMonitor monitor) { Job[] jobs = Job.getJobManager().find(Workbench.EARLY_STARTUP_FAMILY); if (jobs.length > 0) { for (Job job : jobs) { if (job.getState() != Job.NONE) { schedule(100); return Status.OK_STATUS; } } } UpdateUI.requestRestart(true); return Status.OK_STATUS; } }; job.setPriority(UIJob.INTERACTIVE); job.schedule(); } /** * Create and return a string with command line options for eclipse.exe that will launch a new workbench that is the * same as the currently running one, but using the argument directory as its workspace. Pulled from * OpenWorkspaceAction * * @param command * Note--must be separated by \n * @return a string of command line options or null on error */ private static String buildCommandLine(String commands) { String property = System.getProperty(PROP_VM); if (property == null) { IdeLog.logError(CoreUIPlugin.getDefault(), Messages.InitialRestartStartup_ERR_VMArgumentsNullForRestartOfIDE); return null; } StringBuffer result = new StringBuffer(512); result.append(property); result.append(NEW_LINE); // append the vmargs and commands. Assume that these already end in \n String vmargs = System.getProperty(PROP_VMARGS); if (vmargs != null) { result.append(vmargs); } // append the rest of the args, replacing or adding -data as required property = System.getProperty(PROP_COMMANDS); if (property == null) { result.append(commands); result.append(NEW_LINE); } else { result.append(commands); result.append(NEW_LINE); result.append(property); } // put the vmargs back at the very end (the eclipse.commands property // already contains the -vm arg) if (vmargs != null) { result.append(CMD_VMARGS); result.append(NEW_LINE); result.append(vmargs); } return result.toString(); } }