jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javadoc/Start.java@467f4f754368 (annotated)

src/share/classes/com/sun/tools/javadoc/Start.java@467f4f754368 (annotated)

src/share/classes/com/sun/tools/javadoc/Start.java

Thu, 15 Nov 2012 14:41:31 -0800

author: jjg
date: Thu, 15 Nov 2012 14:41:31 -0800
changeset 1411: 467f4f754368
parent 1392: 352d130c47c5
child 1413: bdcef2ef52d2
permissions: -rw-r--r--

8003257: refactor javadoc tool option handling
Reviewed-by: darcy

 /*
  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.tools.javadoc;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.PrintWriter;
 import com.sun.javadoc.*;
 import com.sun.tools.javac.main.CommandLine;
 import com.sun.tools.javac.util.Context;
 import com.sun.tools.javac.util.List;
 import com.sun.tools.javac.util.ListBuffer;
 import com.sun.tools.javac.util.Log;
 import com.sun.tools.javac.util.Options;
 import static com.sun.tools.javac.code.Flags.*;
 /**
  * Main program of Javadoc.
  * Previously named "Main".
  *
  *  <p><b>This is NOT part of any supported API.
  *  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>
  *
  * @since 1.2
  * @author Robert Field
  * @author Neal Gafter (rewrite)
  */
 public class Start extends ToolOption.Helper {
     /** Context for this invocation. */
     private final Context context;
     private final String defaultDocletClassName;
     private final ClassLoader docletParentClassLoader;
     private static final String javadocName = "javadoc";
     private static final String standardDocletClassName =
         "com.sun.tools.doclets.standard.Standard";
     private long defaultFilter = PUBLIC | PROTECTED;
     private final Messager messager;
     private DocletInvoker docletInvoker;
     Start(String programName,
           PrintWriter errWriter,
           PrintWriter warnWriter,
           PrintWriter noticeWriter,
           String defaultDocletClassName) {
         this(programName, errWriter, warnWriter, noticeWriter, defaultDocletClassName, null);
     }
     Start(String programName,
           PrintWriter errWriter,
           PrintWriter warnWriter,
           PrintWriter noticeWriter,
           String defaultDocletClassName,
           ClassLoader docletParentClassLoader) {
         context = new Context();
         messager = new Messager(context, programName, errWriter, warnWriter, noticeWriter);
         this.defaultDocletClassName = defaultDocletClassName;
         this.docletParentClassLoader = docletParentClassLoader;
     }
     Start(String programName, String defaultDocletClassName) {
         this(programName, defaultDocletClassName, null);
     }
     Start(String programName, String defaultDocletClassName,
           ClassLoader docletParentClassLoader) {
         context = new Context();
         messager = new Messager(context, programName);
         this.defaultDocletClassName = defaultDocletClassName;
         this.docletParentClassLoader = docletParentClassLoader;
     }
     Start(String programName, ClassLoader docletParentClassLoader) {
         this(programName, standardDocletClassName, docletParentClassLoader);
     }
     Start(String programName) {
         this(programName, standardDocletClassName);
     }
     Start(ClassLoader docletParentClassLoader) {
         this(javadocName, docletParentClassLoader);
     }
     Start() {
         this(javadocName);
     }
     public Start(Context context) {
         context.getClass(); // null check
         this.context = context;
         defaultDocletClassName = standardDocletClassName;
         docletParentClassLoader = null;
         Log log = context.get(Log.logKey);
         if (log instanceof Messager)
             messager = (Messager) log;
         else {
             PrintWriter out = context.get(Log.outKey);
             messager = (out == null) ? new Messager(context, javadocName)
                     : new Messager(context, javadocName, out, out, out);
         }
     }
     /**
      * Usage
      */
     @Override
     void usage() {
         usage(true);
     }
     /**
      * Usage
      */
     private void usage(boolean exit) {
         // RFE: it would be better to replace the following with code to
         // write a header, then help for each option, then a footer.
         messager.notice("main.usage");
         // let doclet print usage information (does nothing on error)
         if (docletInvoker != null) {
             docletInvoker.optionLength("-help");
         }
         if (exit) exit();
     }
     @Override
     void Xusage() {
         Xusage(true);
     }
     /**
      * Usage
      */
     private void Xusage(boolean exit) {
         messager.notice("main.Xusage");
         if (exit) exit();
     }
     /**
      * Exit
      */
     private void exit() {
         messager.exit();
     }
     /**
      * Main program - external wrapper
      */
     int begin(String... argv) {
         boolean failed = false;
         try {
             failed = !parseAndExecute(argv);
         } catch (Messager.ExitJavadoc exc) {
             // ignore, we just exit this way
         } catch (OutOfMemoryError ee) {
             messager.error(Messager.NOPOS, "main.out.of.memory");
             failed = true;
         } catch (Error ee) {
             ee.printStackTrace(System.err);
             messager.error(Messager.NOPOS, "main.fatal.error");
             failed = true;
         } catch (Exception ee) {
             ee.printStackTrace(System.err);
             messager.error(Messager.NOPOS, "main.fatal.exception");
             failed = true;
         } finally {
             messager.exitNotice();
             messager.flush();
         }
         failed |= messager.nerrors() > 0;
         failed |= rejectWarnings && messager.nwarnings() > 0;
         return failed ? 1 : 0;
     }
     /**
      * Main program - internal
      */
     private boolean parseAndExecute(String... argv) throws IOException {
         long tm = System.currentTimeMillis();
         ListBuffer<String> javaNames = new ListBuffer<String>();
         // Preprocess @file arguments
         try {
             argv = CommandLine.parse(argv);
         } catch (FileNotFoundException e) {
             messager.error(Messager.NOPOS, "main.cant.read", e.getMessage());
             exit();
         } catch (IOException e) {
             e.printStackTrace(System.err);
             exit();
         }
         setDocletInvoker(argv);
         compOpts = Options.instance(context);
         // Parse arguments
         for (int i = 0 ; i < argv.length ; i++) {
             String arg = argv[i];
             ToolOption o = ToolOption.get(arg);
             if (o != null) {
                 // hack: this restriction should be removed
                 if (o == ToolOption.LOCALE && i > 0)
                     usageError("main.locale_first");
                 if (o.hasArg) {
                     oneArg(argv, i++);
                     o.process(this, argv[i]);
                 } else {
                     setOption(arg);
                     o.process(this);
                 }
             } else if (arg.startsWith("-XD")) {
                 // hidden javac options
                 String s = arg.substring("-XD".length());
                 int eq = s.indexOf('=');
                 String key = (eq < 0) ? s : s.substring(0, eq);
                 String value = (eq < 0) ? s : s.substring(eq+1);
                 compOpts.put(key, value);
             }
             // call doclet for its options
             // other arg starts with - is invalid
             else if (arg.startsWith("-")) {
                 int optionLength;
                 optionLength = docletInvoker.optionLength(arg);
                 if (optionLength < 0) {
                     // error already displayed
                     exit();
                 } else if (optionLength == 0) {
                     // option not found
                     usageError("main.invalid_flag", arg);
                 } else {
                     // doclet added option
                     if ((i + optionLength) > argv.length) {
                         usageError("main.requires_argument", arg);
                     }
                     ListBuffer<String> args = new ListBuffer<String>();
                     for (int j = 0; j < optionLength-1; ++j) {
                         args.append(argv[++i]);
                     }
                     setOption(arg, args.toList());
                 }
             } else {
                 javaNames.append(arg);
             }
         }
         compOpts.notifyListeners();
         if (javaNames.isEmpty() && subPackages.isEmpty()) {
             usageError("main.No_packages_or_classes_specified");
         }
         if (!docletInvoker.validOptions(options.toList())) {
             // error message already displayed
             exit();
         }
         JavadocTool comp = JavadocTool.make0(context);
         if (comp == null) return false;
         if (showAccess == null) {
             setFilter(defaultFilter);
         }
         LanguageVersion languageVersion = docletInvoker.languageVersion();
         RootDocImpl root = comp.getRootDocImpl(
                 docLocale,
                 encoding,
                 showAccess,
                 javaNames.toList(),
                 options.toList(),
                 breakiterator,
                 subPackages.toList(),
                 excludedPackages.toList(),
                 docClasses,
                 // legacy?
                 languageVersion == null || languageVersion == LanguageVersion.JAVA_1_1,
                 quiet);
         // release resources
         comp = null;
         // pass off control to the doclet
         boolean ok = root != null;
         if (ok) ok = docletInvoker.start(root);
         // We're done.
         if (compOpts.get("-verbose") != null) {
             tm = System.currentTimeMillis() - tm;
             messager.notice("main.done_in", Long.toString(tm));
         }
         return ok;
     }
     private void setDocletInvoker(String[] argv) {
         String docletClassName = null;
         String docletPath = null;
         // Parse doclet specifying arguments
         for (int i = 0 ; i < argv.length ; i++) {
             String arg = argv[i];
             if (arg.equals("-doclet")) {
                 oneArg(argv, i++);
                 if (docletClassName != null) {
                     usageError("main.more_than_one_doclet_specified_0_and_1",
                                docletClassName, argv[i]);
                 }
                 docletClassName = argv[i];
             } else if (arg.equals("-docletpath")) {
                 oneArg(argv, i++);
                 if (docletPath == null) {
                     docletPath = argv[i];
                 } else {
                     docletPath += File.pathSeparator + argv[i];
                 }
             }
         }
         if (docletClassName == null) {
             docletClassName = defaultDocletClassName;
         }
         // attempt to find doclet
         docletInvoker = new DocletInvoker(messager,
                                           docletClassName, docletPath,
                                           docletParentClassLoader);
     }
     /**
      * Set one arg option.
      * Error and exit if one argument is not provided.
      */
     private void oneArg(String[] args, int index) {
         if ((index + 1) < args.length) {
             setOption(args[index], args[index+1]);
         } else {
             usageError("main.requires_argument", args[index]);
         }
     }
     @Override
     void usageError(String key, Object... args) {
         messager.error(Messager.NOPOS, key, args);
         usage(true);
     }
     /**
      * indicate an option with no arguments was given.
      */
     private void setOption(String opt) {
         String[] option = { opt };
         options.append(option);
     }
     /**
      * indicate an option with one argument was given.
      */
     private void setOption(String opt, String argument) {
         String[] option = { opt, argument };
         options.append(option);
     }
     /**
      * indicate an option with the specified list of arguments was given.
      */
     private void setOption(String opt, List<String> arguments) {
         String[] args = new String[arguments.length() + 1];
         int k = 0;
         args[k++] = opt;
         for (List<String> i = arguments; i.nonEmpty(); i=i.tail) {
             args[k++] = i.head;
         }
         options.append(args);
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javadoc/Start.java@467f4f754368 (annotated)

src/share/classes/com/sun/tools/javadoc/Start.java