| /* Main.java -- a standalone viewer for Java applets |
| Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.classpath.tools.appletviewer; |
| |
| import gnu.classpath.tools.common.ClasspathToolParser; |
| import gnu.classpath.tools.getopt.Option; |
| import gnu.classpath.tools.getopt.OptionException; |
| import gnu.classpath.tools.getopt.OptionGroup; |
| import gnu.classpath.tools.getopt.Parser; |
| import java.applet.Applet; |
| import java.awt.Dimension; |
| import java.io.BufferedReader; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| |
| class Main |
| { |
| private static HashMap classLoaderCache = new HashMap(); |
| |
| private static ClassLoader getClassLoader(URL codebase, ArrayList archives) |
| { |
| // Should load class loader each time. It is possible that there |
| // are more than one applet to be loaded with different archives. |
| AppletClassLoader loader = new AppletClassLoader(codebase, archives); |
| classLoaderCache.put(codebase, loader); |
| |
| return loader; |
| } |
| |
| private static String code = null; |
| private static String codebase = null; |
| private static String archive = null; |
| private static List parameters = new ArrayList(); |
| private static Dimension dimensions = new Dimension(-1, -1); |
| private static String pipeInName = null; |
| private static String pipeOutName = null; |
| private static boolean pluginMode = false; |
| private static Parser parser = null; |
| |
| static Applet createApplet(AppletTag tag) |
| { |
| Applet applet = null; |
| |
| try |
| { |
| ClassLoader loader = getClassLoader(tag.prependCodeBase(""), |
| tag.getArchives()); |
| String code = tag.getCode(); |
| |
| if (code.endsWith(".class")) |
| code = code.substring(0, code.length() - 6).replace('/', '.'); |
| |
| Class c = loader.loadClass(code); |
| applet = (Applet) c.newInstance(); |
| } |
| catch (Exception e) |
| { |
| e.printStackTrace(); |
| } |
| |
| if (applet == null) |
| applet = new ErrorApplet(Messages.getString ("Main.ErrorApplet")); |
| |
| return applet; |
| } |
| |
| protected static boolean verbose; |
| |
| /** |
| * The main method starting the applet viewer. |
| * |
| * @param args the arguments given on the command line. |
| * |
| * @exception IOException if an error occurs. |
| */ |
| public static void main(String[] args) throws IOException |
| { |
| parser = new ClasspathToolParser("appletviewer", true); |
| parser.setHeader(Messages.getString("Main.Usage")); |
| |
| OptionGroup attributeGroup |
| = new OptionGroup(Messages.getString("Main.AppletTagOptions")); |
| |
| attributeGroup.add(new Option("code", |
| Messages.getString("Main.CodeDescription"), |
| Messages.getString("Main.CodeArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| code = argument; |
| } |
| }); |
| attributeGroup.add |
| (new Option("codebase", |
| Messages.getString("Main.CodebaseDescription"), |
| Messages.getString("Main.CodebaseArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| codebase = argument; |
| } |
| }); |
| attributeGroup.add |
| (new Option("archive", |
| Messages.getString("Main.ArchiveDescription"), |
| Messages.getString("Main.ArchiveArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| archive = argument; |
| } |
| }); |
| attributeGroup.add(new Option("width", |
| Messages.getString("Main.WidthDescription"), |
| Messages.getString("Main.WidthArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| dimensions.width = Integer.parseInt(argument); |
| } |
| }); |
| attributeGroup.add(new Option("height", |
| Messages.getString("Main.HeightDescription"), |
| Messages.getString("Main.HeightArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| dimensions.height = Integer.parseInt(argument); |
| } |
| }); |
| attributeGroup.add(new Option("param", |
| Messages.getString("Main.ParamDescription"), |
| Messages.getString("Main.ParamArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| parameters.add(argument); |
| } |
| }); |
| OptionGroup pluginGroup |
| = new OptionGroup(Messages.getString("Main.PluginOption")); |
| pluginGroup.add(new Option("plugin", |
| Messages.getString("Main.PluginDescription"), |
| Messages.getString("Main.PluginArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| pluginMode = true; |
| int comma = argument.indexOf(','); |
| pipeInName = argument.substring(0, comma); |
| pipeOutName = argument.substring(comma + 1); |
| } |
| }); |
| OptionGroup debuggingGroup |
| = new OptionGroup(Messages.getString("Main.DebuggingOption")); |
| debuggingGroup.add |
| (new Option("verbose", |
| Messages.getString("Main.VerboseDescription"), |
| (String) null) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| verbose = true; |
| } |
| }); |
| OptionGroup compatibilityGroup |
| = new OptionGroup(Messages.getString("Main.CompatibilityOptions")); |
| compatibilityGroup.add |
| (new Option("debug", |
| Messages.getString("Main.DebugDescription"), |
| (String) null) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| // Currently ignored. |
| } |
| }); |
| compatibilityGroup.add |
| (new Option("encoding", |
| Messages.getString("Main.EncodingDescription"), |
| Messages.getString("Main.EncodingArgument")) |
| { |
| public void parsed(String argument) throws OptionException |
| { |
| // FIXME: We should probably be using |
| // java.nio.charset.CharsetDecoder to handle the encoding. What |
| // is the status of Classpath's implementation? |
| } |
| }); |
| parser.add(attributeGroup); |
| parser.add(pluginGroup); |
| parser.add(debuggingGroup); |
| parser.add(compatibilityGroup); |
| |
| String[] urls = parser.parse(args); |
| |
| // Print arguments. |
| printArguments(args); |
| |
| args = urls; |
| |
| if (dimensions.height < 0) |
| dimensions.height = 200; |
| |
| if (dimensions.width < 0) |
| dimensions.width = (int) (1.6 * dimensions.height); |
| |
| //System.setSecurityManager(new AppletSecurityManager(pluginMode)); |
| |
| if (pluginMode) |
| { |
| // Plugin will warn user about missing security manager. |
| InputStream in; |
| OutputStream out; |
| |
| in = new FileInputStream(pipeInName); |
| out = new FileOutputStream(pipeOutName); |
| |
| PluginAppletViewer.start(in, out); |
| } |
| else |
| { |
| // Warn user about missing security manager. |
| System.err.println(Messages.getString("Main.SecurityWarning") + "\n"); |
| |
| System.err.println(Messages.getString("Main.ContinuationPrompt")); |
| |
| BufferedReader stdin |
| = new BufferedReader(new InputStreamReader(System.in)); |
| String response = null; |
| |
| try |
| { |
| response = stdin.readLine(); |
| } |
| catch (IOException e) |
| { |
| throw new RuntimeException("Failed to read response" |
| + " to continuation prompt.", e); |
| } |
| |
| if (!(response.equals("c") || response.equals("C"))) |
| { |
| System.exit(0); |
| } |
| |
| if (code == null) |
| { |
| // The --code option wasn't given and there are no URL |
| // arguments so we have nothing to work with. |
| if (args.length == 0) |
| { |
| System.err.println(Messages.getString("Main.NoInputFiles")); |
| System.exit(1); |
| } |
| // Create a standalone appletviewer from a list of URLs. |
| new StandaloneAppletViewer(args); |
| } |
| else |
| { |
| // Create a standalone appletviewer from the --code |
| // option. |
| new StandaloneAppletViewer(code, codebase, archive, |
| parameters, dimensions); |
| } |
| } |
| } |
| |
| static void printArguments(String[] args) |
| { |
| if (verbose) |
| { |
| System.out.println(Messages.getString("Main.RawArguments")); |
| |
| for (int i = 0; i < args.length; i++) |
| System.out.println(" " + args[i]); |
| } |
| } |
| } |