/*
* Copyright (c) 1997, 2011, 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 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.Options;
import java.io.IOException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import static com.sun.tools.javac.code.Flags.*;
/**
* Main program of Javadoc.
* Previously named "Main".
*
* @since 1.2
* @author Robert Field
* @author Neal Gafter (rewrite)
*/
class Start {
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 ListBuffer<String[]> options = new ListBuffer<String[]>();
private ModifierFilter showAccess = null;
private long defaultFilter = PUBLIC | PROTECTED;
private Messager messager;
String docLocale = "";
boolean breakiterator = false;
boolean quiet = false;
String encoding = null;
private DocletInvoker docletInvoker;
private static final int F_VERBOSE = 1 << 0;
private static final int F_WARNINGS = 1 << 2;
/* Treat warnings as errors. */
private boolean rejectWarnings = false;
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 tempContext = new Context(); // interim context until option decoding completed
messager = new Messager(tempContext, 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 tempContext = new Context(); // interim context until option decoding completed
messager = new Messager(tempContext, 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);
}
/**
* Usage
*/
private void usage() {
messager.notice("main.usage");
// let doclet print usage information (does nothing on error)
if (docletInvoker != null) {
docletInvoker.optionLength("-help");
}
}
/**
* Usage
*/
private void Xusage() {
messager.notice("main.Xusage");
}
/**
* 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(null, "main.out.of.memory");
failed = true;
} catch (Error ee) {
ee.printStackTrace();
messager.error(null, "main.fatal.error");
failed = true;
} catch (Exception ee) {
ee.printStackTrace();
messager.error(null, "main.fatal.exception");
failed = true;
} finally {
messager.exitNotice();
messager.flush();
}
failed |= messager.nerrors() > 0;
failed |= rejectWarnings && messager.nwarnings() > 0;
return failed ? 1 : 0;
}
private void addToList(ListBuffer<String> list, String str){
StringTokenizer st = new StringTokenizer(str, ":");
String current;
while(st.hasMoreTokens()){
current = st.nextToken();
list.append(current);
}
}
/**
* 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(null, "main.cant.read", e.getMessage());
exit();
} catch (IOException e) {
e.printStackTrace();
exit();
}
setDocletInvoker(argv);
ListBuffer<String> subPackages = new ListBuffer<String>();
ListBuffer<String> excludedPackages = new ListBuffer<String>();
Context context = new Context();
// Setup a new Messager, using the same initial parameters as the
// existing Messager, except that this one will be able to use any
// options that may be set up below.
Messager.preRegister(context,
messager.programName,
messager.errWriter, messager.warnWriter, messager.noticeWriter);
Options compOpts = Options.instance(context);
boolean docClasses = false;
// Parse arguments
for (int i = 0 ; i < argv.length ; i++) {
String arg = argv[i];
if (arg.equals("-subpackages")) {
oneArg(argv, i++);
addToList(subPackages, argv[i]);
} else if (arg.equals("-exclude")){
oneArg(argv, i++);
addToList(excludedPackages, argv[i]);
} else if (arg.equals("-verbose")) {
setOption(arg);
compOpts.put("-verbose", "");
} else if (arg.equals("-encoding")) {
oneArg(argv, i++);
encoding = argv[i];
compOpts.put("-encoding", argv[i]);
} else if (arg.equals("-breakiterator")) {
breakiterator = true;
setOption("-breakiterator");
} else if (arg.equals("-quiet")) {
quiet = true;
setOption("-quiet");
} else if (arg.equals("-help")) {
usage();
exit();
} else if (arg.equals("-Xclasses")) {
setOption(arg);
docClasses = true;
} else if (arg.equals("-Xwerror")) {
setOption(arg);
rejectWarnings = true;
} else if (arg.equals("-private")) {
setOption(arg);
setFilter(ModifierFilter.ALL_ACCESS);
} else if (arg.equals("-package")) {
setOption(arg);
setFilter(PUBLIC | PROTECTED |
ModifierFilter.PACKAGE );
} else if (arg.equals("-protected")) {
setOption(arg);
setFilter(PUBLIC | PROTECTED );
} else if (arg.equals("-public")) {
setOption(arg);
setFilter(PUBLIC);
} else if (arg.equals("-source")) {
oneArg(argv, i++);
if (compOpts.get("-source") != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put("-source", argv[i]);
} else if (arg.equals("-prompt")) {
compOpts.put("-prompt", "-prompt");
messager.promptOnError = true;
} else if (arg.equals("-sourcepath")) {
oneArg(argv, i++);
if (compOpts.get("-sourcepath") != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put("-sourcepath", argv[i]);
} else if (arg.equals("-classpath")) {
oneArg(argv, i++);
if (compOpts.get("-classpath") != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put("-classpath", argv[i]);
} else if (arg.equals("-sysclasspath")) {
oneArg(argv, i++);
if (compOpts.get("-bootclasspath") != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put("-bootclasspath", argv[i]);
} else if (arg.equals("-bootclasspath")) {
oneArg(argv, i++);
if (compOpts.get("-bootclasspath") != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put("-bootclasspath", argv[i]);
} else if (arg.equals("-extdirs")) {
oneArg(argv, i++);
if (compOpts.get("-extdirs") != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put("-extdirs", argv[i]);
} else if (arg.equals("-overview")) {
oneArg(argv, i++);
} else if (arg.equals("-doclet")) {
i++; // handled in setDocletInvoker
} else if (arg.equals("-docletpath")) {
i++; // handled in setDocletInvoker
} else if (arg.equals("-locale")) {
if (i != 0)
usageError("main.locale_first");
oneArg(argv, i++);
docLocale = argv[i];
} else if (arg.equals("-Xmaxerrs") || arg.equals("-Xmaxwarns")) {
oneArg(argv, i++);
if (compOpts.get(arg) != null) {
usageError("main.option.already.seen", arg);
}
compOpts.put(arg, argv[i]);
} else if (arg.equals("-X")) {
Xusage();
exit();
} else if (arg.startsWith("-XD")) {
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);
}
}
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);
// pass off control to the doclet
boolean ok = root != null;
if (ok) ok = docletInvoker.start(root);
Messager docletMessager = Messager.instance0(context);
messager.nwarnings += docletMessager.nwarnings;
messager.nerrors += docletMessager.nerrors;
// 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);
}
private void setFilter(long filterBits) {
if (showAccess != null) {
messager.error(null, "main.incompatible.access.flags");
usage();
exit();
}
showAccess = new ModifierFilter(filterBits);
}
/**
* 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]);
}
}
private void usageError(String key) {
messager.error(null, key);
usage();
exit();
}
private void usageError(String key, String a1) {
messager.error(null, key, a1);
usage();
exit();
}
private void usageError(String key, String a1, String a2) {
messager.error(null, key, a1, a2);
usage();
exit();
}
/**
* 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 = options.append(args);
}
}