| |
| /* |
| * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package sun.launcher; |
| |
| /* |
| * |
| * <p><b>This is NOT part of any API supported by Sun Microsystems. |
| * If you write code that depends on this, you do so at your own |
| * risk. This code and its internal interfaces are subject to change |
| * or deletion without notice.</b> |
| * |
| */ |
| |
| /** |
| * A utility package for the java(1), javaw(1) launchers. |
| */ |
| import java.io.File; |
| import java.io.PrintStream; |
| import java.util.ResourceBundle; |
| import java.text.MessageFormat; |
| |
| public class LauncherHelp { |
| |
| private static final String defaultBundleName = "sun.launcher.resources.launcher"; |
| private static ResourceBundle javarb = ResourceBundle.getBundle(defaultBundleName); |
| |
| private static StringBuilder outBuf = new StringBuilder(); |
| |
| /** Creates a new instance of LauncherHelp, keep it a singleton */ |
| private LauncherHelp(){} |
| |
| |
| /** |
| * A private helper method to get a localized message and also |
| * apply any arguments that we might pass. |
| */ |
| private static String getLocalizedMessage(String key, Object... args) { |
| String msg = javarb.getString(key); |
| return (args != null) ? MessageFormat.format(msg, args) : msg; |
| } |
| |
| /** |
| * The java -help message is split into 3 parts, an invariant, followed |
| * by a set of platform dependent variant messages, finally an invariant |
| * set of lines. |
| * This method initializes the help message for the first time, and also |
| * assembles the invariant header part of the message. |
| */ |
| static void initHelpMessage(String progname) { |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.opt.header", (progname == null) ? "java" : progname )); |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.opt.datamodel", 32)); |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.opt.datamodel", 64)); |
| } |
| |
| /** |
| * Appends the vm selection messages to the header, already created. |
| * initHelpSystem must already be called. |
| */ |
| static void appendVmSelectMessage(String vm1, String vm2) { |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.opt.vmselect", vm1, vm2)); |
| } |
| |
| /** |
| * Appends the vm synoym message to the header, already created. |
| * initHelpSystem must be called before using this method. |
| */ |
| static void appendVmSynonymMessage(String vm1, String vm2) { |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.opt.hotspot", vm1, vm2)); |
| } |
| |
| /** |
| * Appends the vm Ergo message to the header, already created. |
| * initHelpSystem must be called before using this method. |
| */ |
| static void appendVmErgoMessage(boolean isServerClass, String vm) { |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.ergo.message1", vm)); |
| outBuf = (isServerClass) |
| ? outBuf.append(",\n" + getLocalizedMessage("java.launcher.ergo.message2") + "\n\n") |
| : outBuf.append(".\n\n"); |
| } |
| |
| /** |
| * Appends the last invariant part to the previously created messages, |
| * and finishes up the printing to the desired output stream. |
| * initHelpSystem must be called before using this method. |
| */ |
| static void printHelpMessage(boolean printToStderr) { |
| PrintStream ostream = (printToStderr) ? System.err : System.out; |
| outBuf = outBuf.append(getLocalizedMessage("java.launcher.opt.footer", File.pathSeparator)); |
| ostream.println(outBuf.toString()); |
| } |
| |
| /** |
| * Prints the Xusage text to the desired output stream. |
| */ |
| static void printXUsageMessage(boolean printToStderr) { |
| PrintStream ostream = (printToStderr) ? System.err : System.out; |
| ostream.println(getLocalizedMessage("java.launcher.X.usage", File.pathSeparator)); |
| } |
| |
| /* Test code */ |
| public static void main(String[] args) { |
| initHelpMessage("java"); |
| appendVmSelectMessage("-client", "client"); |
| appendVmSelectMessage("-server", "server"); |
| appendVmSynonymMessage("-hotspot", "client"); |
| appendVmErgoMessage(true, "server"); |
| printHelpMessage(true); |
| |
| System.err.println("------------------------------------"); |
| |
| printXUsageMessage(true); |
| } |
| } |