jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javap/JavapTask.java@261c54b2312e

     1 /*

     2  * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    26 package com.sun.tools.javap;

    28 import java.io.EOFException;

    29 import java.io.FileNotFoundException;

    30 import java.io.FilterInputStream;

    31 import java.io.InputStream;

    32 import java.io.IOException;

    33 import java.io.OutputStream;

    34 import java.io.PrintWriter;

    35 import java.io.Reader;

    36 import java.io.StringWriter;

    37 import java.io.Writer;

    38 import java.net.URI;

    39 import java.security.DigestInputStream;

    40 import java.security.MessageDigest;

    41 import java.security.NoSuchAlgorithmException;

    42 import java.text.MessageFormat;

    43 import java.util.ArrayList;

    44 import java.util.Arrays;

    45 import java.util.EnumSet;

    46 import java.util.HashMap;

    47 import java.util.Iterator;

    48 import java.util.List;

    49 import java.util.Locale;

    50 import java.util.Map;

    51 import java.util.MissingResourceException;

    52 import java.util.ResourceBundle;

    54 import javax.lang.model.element.Modifier;

    55 import javax.lang.model.element.NestingKind;

    56 import javax.tools.Diagnostic;

    57 import javax.tools.DiagnosticListener;

    58 import javax.tools.JavaFileManager;

    59 import javax.tools.JavaFileObject;

    60 import javax.tools.StandardJavaFileManager;

    61 import javax.tools.StandardLocation;

    63 import com.sun.tools.classfile.*;

    64 import java.net.URISyntaxException;

    65 import java.net.URL;

    66 import java.net.URLConnection;

    68 /**

    69  *  "Main" class for javap, normally accessed from the command line

    70  *  via Main, or from JSR199 via DisassemblerTool.

    71  *

    72  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If

    73  *  you write code that depends on this, you do so at your own risk.

    74  *  This code and its internal interfaces are subject to change or

    75  *  deletion without notice.</b>

    76  */

    77 public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {

    78     public class BadArgs extends Exception {

    79         static final long serialVersionUID = 8765093759964640721L;

    80         BadArgs(String key, Object... args) {

    81             super(JavapTask.this.getMessage(key, args));

    82             this.key = key;

    83             this.args = args;

    84         }

    86         BadArgs showUsage(boolean b) {

    87             showUsage = b;

    88             return this;

    89         }

    91         final String key;

    92         final Object[] args;

    93         boolean showUsage;

    94     }

    96     static abstract class Option {

    97         Option(boolean hasArg, String... aliases) {

    98             this.hasArg = hasArg;

    99             this.aliases = aliases;

   100         }

   102         boolean matches(String opt) {

   103             for (String a: aliases) {

   104                 if (a.equals(opt))

   105                     return true;

   106             }

   107             return false;

   108         }

   110         boolean ignoreRest() {

   111             return false;

   112         }

   114         abstract void process(JavapTask task, String opt, String arg) throws BadArgs;

   116         final boolean hasArg;

   117         final String[] aliases;

   118     }

   120     static Option[] recognizedOptions = {

   122         new Option(false, "-help", "--help", "-?") {

   123             void process(JavapTask task, String opt, String arg) {

   124                 task.options.help = true;

   125             }

   126         },

   128         new Option(false, "-version") {

   129             void process(JavapTask task, String opt, String arg) {

   130                 task.options.version = true;

   131             }

   132         },

   134         new Option(false, "-fullversion") {

   135             void process(JavapTask task, String opt, String arg) {

   136                 task.options.fullVersion = true;

   137             }

   138         },

   140         new Option(false, "-v", "-verbose", "-all") {

   141             void process(JavapTask task, String opt, String arg) {

   142                 task.options.verbose = true;

   143                 task.options.showFlags = true;

   144                 task.options.showAllAttrs = true;

   145             }

   146         },

   148         new Option(false, "-l") {

   149             void process(JavapTask task, String opt, String arg) {

   150                 task.options.showLineAndLocalVariableTables = true;

   151             }

   152         },

   154         new Option(false, "-public") {

   155             void process(JavapTask task, String opt, String arg) {

   156                 task.options.accessOptions.add(opt);

   157                 task.options.showAccess = AccessFlags.ACC_PUBLIC;

   158             }

   159         },

   161         new Option(false, "-protected") {

   162             void process(JavapTask task, String opt, String arg) {

   163                 task.options.accessOptions.add(opt);

   164                 task.options.showAccess = AccessFlags.ACC_PROTECTED;

   165             }

   166         },

   168         new Option(false, "-package") {

   169             void process(JavapTask task, String opt, String arg) {

   170                 task.options.accessOptions.add(opt);

   171                 task.options.showAccess = 0;

   172             }

   173         },

   175         new Option(false, "-p", "-private") {

   176             void process(JavapTask task, String opt, String arg) {

   177                 if (!task.options.accessOptions.contains("-p") &&

   178                         !task.options.accessOptions.contains("-private")) {

   179                     task.options.accessOptions.add(opt);

   180                 }

   181                 task.options.showAccess = AccessFlags.ACC_PRIVATE;

   182             }

   183         },

   185         new Option(false, "-c") {

   186             void process(JavapTask task, String opt, String arg) {

   187                 task.options.showDisassembled = true;

   188             }

   189         },

   191         new Option(false, "-s") {

   192             void process(JavapTask task, String opt, String arg) {

   193                 task.options.showInternalSignatures = true;

   194             }

   195         },

   197 //        new Option(false, "-all") {

   198 //            void process(JavapTask task, String opt, String arg) {

   199 //                task.options.showAllAttrs = true;

   200 //            }

   201 //        },

   203         new Option(false, "-h") {

   204             void process(JavapTask task, String opt, String arg) throws BadArgs {

   205                 throw task.new BadArgs("err.h.not.supported");

   206             }

   207         },

   209         new Option(false, "-verify", "-verify-verbose") {

   210             void process(JavapTask task, String opt, String arg) throws BadArgs {

   211                 throw task.new BadArgs("err.verify.not.supported");

   212             }

   213         },

   215         new Option(false, "-sysinfo") {

   216             void process(JavapTask task, String opt, String arg) {

   217                 task.options.sysInfo = true;

   218             }

   219         },

   221         new Option(false, "-Xold") {

   222             void process(JavapTask task, String opt, String arg) throws BadArgs {

   223                 task.log.println(task.getMessage("warn.Xold.not.supported"));

   224             }

   225         },

   227         new Option(false, "-Xnew") {

   228             void process(JavapTask task, String opt, String arg) throws BadArgs {

   229                 // ignore: this _is_ the new version

   230             }

   231         },

   233         new Option(false, "-XDcompat") {

   234             void process(JavapTask task, String opt, String arg) {

   235                 task.options.compat = true;

   236             }

   237         },

   239         new Option(false, "-XDjsr277") {

   240             void process(JavapTask task, String opt, String arg) {

   241                 task.options.jsr277 = true;

   242             }

   243         },

   245         new Option(false, "-XDdetails") {

   246             void process(JavapTask task, String opt, String arg) {

   247                 task.options.details = EnumSet.allOf(InstructionDetailWriter.Kind.class);

   248             }

   250         },

   252         new Option(false, "-XDdetails:") {

   253             @Override

   254             boolean matches(String opt) {

   255                 int sep = opt.indexOf(":");

   256                 return sep != -1 && super.matches(opt.substring(0, sep + 1));

   257             }

   259             void process(JavapTask task, String opt, String arg) throws BadArgs {

   260                 int sep = opt.indexOf(":");

   261                 for (String v: opt.substring(sep + 1).split("[,: ]+")) {

   262                     if (!handleArg(task, v))

   263                         throw task.new BadArgs("err.invalid.arg.for.option", v);

   264                 }

   265             }

   267             boolean handleArg(JavapTask task, String arg) {

   268                 if (arg.length() == 0)

   269                     return true;

   271                 if (arg.equals("all")) {

   272                     task.options.details = EnumSet.allOf(InstructionDetailWriter.Kind.class);

   273                     return true;

   274                 }

   276                 boolean on = true;

   277                 if (arg.startsWith("-")) {

   278                     on = false;

   279                     arg = arg.substring(1);

   280                 }

   282                 for (InstructionDetailWriter.Kind k: InstructionDetailWriter.Kind.values()) {

   283                     if (arg.equalsIgnoreCase(k.option)) {

   284                         if (on)

   285                             task.options.details.add(k);

   286                         else

   287                             task.options.details.remove(k);

   288                         return true;

   289                     }

   290                 }

   291                 return false;

   292             }

   293         },

   295         new Option(false, "-constants") {

   296             void process(JavapTask task, String opt, String arg) {

   297                 task.options.showConstants = true;

   298             }

   299         },

   301         new Option(false, "-XDinner") {

   302             void process(JavapTask task, String opt, String arg) {

   303                 task.options.showInnerClasses = true;

   304             }

   305         },

   307         new Option(false, "-XDindent:") {

   308             @Override

   309             boolean matches(String opt) {

   310                 int sep = opt.indexOf(":");

   311                 return sep != -1 && super.matches(opt.substring(0, sep + 1));

   312             }

   314             void process(JavapTask task, String opt, String arg) throws BadArgs {

   315                 int sep = opt.indexOf(":");

   316                 try {

   317                     task.options.indentWidth = Integer.valueOf(opt.substring(sep + 1));

   318                 } catch (NumberFormatException e) {

   319                 }

   320             }

   321         },

   323         new Option(false, "-XDtab:") {

   324             @Override

   325             boolean matches(String opt) {

   326                 int sep = opt.indexOf(":");

   327                 return sep != -1 && super.matches(opt.substring(0, sep + 1));

   328             }

   330             void process(JavapTask task, String opt, String arg) throws BadArgs {

   331                 int sep = opt.indexOf(":");

   332                 try {

   333                     task.options.tabColumn = Integer.valueOf(opt.substring(sep + 1));

   334                 } catch (NumberFormatException e) {

   335                 }

   336             }

   337         }

   339     };

   341     public JavapTask() {

   342         context = new Context();

   343         context.put(Messages.class, this);

   344         options = Options.instance(context);

   345         attributeFactory = new Attribute.Factory();

   346     }

   348     public JavapTask(Writer out,

   349             JavaFileManager fileManager,

   350             DiagnosticListener<? super JavaFileObject> diagnosticListener) {

   351         this();

   352         this.log = getPrintWriterForWriter(out);

   353         this.fileManager = fileManager;

   354         this.diagnosticListener = diagnosticListener;

   355     }

   357     public JavapTask(Writer out,

   358             JavaFileManager fileManager,

   359             DiagnosticListener<? super JavaFileObject> diagnosticListener,

   360             Iterable<String> options,

   361             Iterable<String> classes) {

   362         this(out, fileManager, diagnosticListener);

   364         this.classes = new ArrayList<String>();

   365         for (String classname: classes) {

   366             classname.getClass(); // null-check

   367             this.classes.add(classname);

   368         }

   370         try {

   371             handleOptions(options, false);

   372         } catch (BadArgs e) {

   373             throw new IllegalArgumentException(e.getMessage());

   374         }

   375     }

   377     public void setLocale(Locale locale) {

   378         if (locale == null)

   379             locale = Locale.getDefault();

   380         task_locale = locale;

   381     }

   383     public void setLog(PrintWriter log) {

   384         this.log = log;

   385     }

   387     public void setLog(OutputStream s) {

   388         setLog(getPrintWriterForStream(s));

   389     }

   391     private static PrintWriter getPrintWriterForStream(OutputStream s) {

   392         return new PrintWriter(s, true);

   393     }

   395     private static PrintWriter getPrintWriterForWriter(Writer w) {

   396         if (w == null)

   397             return getPrintWriterForStream(null);

   398         else if (w instanceof PrintWriter)

   399             return (PrintWriter) w;

   400         else

   401             return new PrintWriter(w, true);

   402     }

   404     public void setDiagnosticListener(DiagnosticListener<? super JavaFileObject> dl) {

   405         diagnosticListener = dl;

   406     }

   408     public void setDiagnosticListener(OutputStream s) {

   409         setDiagnosticListener(getDiagnosticListenerForStream(s));

   410     }

   412     private DiagnosticListener<JavaFileObject> getDiagnosticListenerForStream(OutputStream s) {

   413         return getDiagnosticListenerForWriter(getPrintWriterForStream(s));

   414     }

   416     private DiagnosticListener<JavaFileObject> getDiagnosticListenerForWriter(Writer w) {

   417         final PrintWriter pw = getPrintWriterForWriter(w);

   418         return new DiagnosticListener<JavaFileObject> () {

   419             public void report(Diagnostic<? extends JavaFileObject> diagnostic) {

   420                 switch (diagnostic.getKind()) {

   421                     case ERROR:

   422                         pw.print(getMessage("err.prefix"));

   423                         break;

   424                     case WARNING:

   425                         pw.print(getMessage("warn.prefix"));

   426                         break;

   427                     case NOTE:

   428                         pw.print(getMessage("note.prefix"));

   429                         break;

   430                 }

   431                 pw.print(" ");

   432                 pw.println(diagnostic.getMessage(null));

   433             }

   434         };

   435     }

   437     /** Result codes.

   438      */

   439     static final int

   440         EXIT_OK = 0,        // Compilation completed with no errors.

   441         EXIT_ERROR = 1,     // Completed but reported errors.

   442         EXIT_CMDERR = 2,    // Bad command-line arguments

   443         EXIT_SYSERR = 3,    // System error or resource exhaustion.

   444         EXIT_ABNORMAL = 4;  // Compiler terminated abnormally

   446     int run(String[] args) {

   447         try {

   448             handleOptions(args);

   450             // the following gives consistent behavior with javac

   451             if (classes == null || classes.size() == 0) {

   452                 if (options.help || options.version || options.fullVersion)

   453                     return EXIT_OK;

   454                 else

   455                     return EXIT_CMDERR;

   456             }

   458             try {

   459                 boolean ok = run();

   460                 return ok ? EXIT_OK : EXIT_ERROR;

   461             } finally {

   462                 if (defaultFileManager != null) {

   463                     try {

   464                         defaultFileManager.close();

   465                         defaultFileManager = null;

   466                     } catch (IOException e) {

   467                         throw new InternalError(e);

   468                     }

   469                 }

   470             }

   471         } catch (BadArgs e) {

   472             reportError(e.key, e.args);

   473             if (e.showUsage) {

   474                 log.println(getMessage("main.usage.summary", progname));

   475             }

   476             return EXIT_CMDERR;

   477         } catch (InternalError e) {

   478             Object[] e_args;

   479             if (e.getCause() == null)

   480                 e_args = e.args;

   481             else {

   482                 e_args = new Object[e.args.length + 1];

   483                 e_args[0] = e.getCause();

   484                 System.arraycopy(e.args, 0, e_args, 1, e.args.length);

   485             }

   486             reportError("err.internal.error", e_args);

   487             return EXIT_ABNORMAL;

   488         } finally {

   489             log.flush();

   490         }

   491     }

   493     public void handleOptions(String[] args) throws BadArgs {

   494         handleOptions(Arrays.asList(args), true);

   495     }

   497     private void handleOptions(Iterable<String> args, boolean allowClasses) throws BadArgs {

   498         if (log == null) {

   499             log = getPrintWriterForStream(System.out);

   500             if (diagnosticListener == null)

   501               diagnosticListener = getDiagnosticListenerForStream(System.err);

   502         } else {

   503             if (diagnosticListener == null)

   504               diagnosticListener = getDiagnosticListenerForWriter(log);

   505         }

   508         if (fileManager == null)

   509             fileManager = getDefaultFileManager(diagnosticListener, log);

   511         Iterator<String> iter = args.iterator();

   512         boolean noArgs = !iter.hasNext();

   514         while (iter.hasNext()) {

   515             String arg = iter.next();

   516             if (arg.startsWith("-"))

   517                 handleOption(arg, iter);

   518             else if (allowClasses) {

   519                 if (classes == null)

   520                     classes = new ArrayList<String>();

   521                 classes.add(arg);

   522                 while (iter.hasNext())

   523                     classes.add(iter.next());

   524             } else

   525                 throw new BadArgs("err.unknown.option", arg).showUsage(true);

   526         }

   528         if (!options.compat && options.accessOptions.size() > 1) {

   529             StringBuilder sb = new StringBuilder();

   530             for (String opt: options.accessOptions) {

   531                 if (sb.length() > 0)

   532                     sb.append(" ");

   533                 sb.append(opt);

   534             }

   535             throw new BadArgs("err.incompatible.options", sb);

   536         }

   538         if ((classes == null || classes.size() == 0) &&

   539                 !(noArgs || options.help || options.version || options.fullVersion)) {

   540             throw new BadArgs("err.no.classes.specified");

   541         }

   543         if (noArgs || options.help)

   544             showHelp();

   546         if (options.version || options.fullVersion)

   547             showVersion(options.fullVersion);

   548     }

   550     private void handleOption(String name, Iterator<String> rest) throws BadArgs {

   551         for (Option o: recognizedOptions) {

   552             if (o.matches(name)) {

   553                 if (o.hasArg) {

   554                     if (rest.hasNext())

   555                         o.process(this, name, rest.next());

   556                     else

   557                         throw new BadArgs("err.missing.arg", name).showUsage(true);

   558                 } else

   559                     o.process(this, name, null);

   561                 if (o.ignoreRest()) {

   562                     while (rest.hasNext())

   563                         rest.next();

   564                 }

   565                 return;

   566             }

   567         }

   569         if (fileManager.handleOption(name, rest))

   570             return;

   572         throw new BadArgs("err.unknown.option", name).showUsage(true);

   573     }

   575     public Boolean call() {

   576         return run();

   577     }

   579     public boolean run() {

   580         if (classes == null || classes.size() == 0)

   581             return false;

   583         context.put(PrintWriter.class, log);

   584         ClassWriter classWriter = ClassWriter.instance(context);

   585         SourceWriter sourceWriter = SourceWriter.instance(context);

   586         sourceWriter.setFileManager(fileManager);

   588         attributeFactory.setCompat(options.compat);

   589         attributeFactory.setJSR277(options.jsr277);

   591         boolean ok = true;

   593         for (String className: classes) {

   594             JavaFileObject fo;

   595             try {

   596                 writeClass(classWriter, className);

   597             } catch (ConstantPoolException e) {

   598                 reportError("err.bad.constant.pool", className, e.getLocalizedMessage());

   599                 ok = false;

   600             } catch (EOFException e) {

   601                 reportError("err.end.of.file", className);

   602                 ok = false;

   603             } catch (FileNotFoundException e) {

   604                 reportError("err.file.not.found", e.getLocalizedMessage());

   605                 ok = false;

   606             } catch (IOException e) {

   607                 //e.printStackTrace();

   608                 Object msg = e.getLocalizedMessage();

   609                 if (msg == null)

   610                     msg = e;

   611                 reportError("err.ioerror", className, msg);

   612                 ok = false;

   613             } catch (Throwable t) {

   614                 StringWriter sw = new StringWriter();

   615                 PrintWriter pw = new PrintWriter(sw);

   616                 t.printStackTrace(pw);

   617                 pw.close();

   618                 reportError("err.crash", t.toString(), sw.toString());

   619                 ok = false;

   620             }

   621         }

   623         return ok;

   624     }

   626     protected boolean writeClass(ClassWriter classWriter, String className)

   627             throws IOException, ConstantPoolException {

   628         JavaFileObject fo = open(className);

   629         if (fo == null) {

   630             reportError("err.class.not.found", className);

   631             return false;

   632         }

   634         ClassFileInfo cfInfo = read(fo);

   635         if (!className.endsWith(".class")) {

   636             String cfName = cfInfo.cf.getName();

   637             if (!cfName.replaceAll("[/$]", ".").equals(className.replaceAll("[/$]", ".")))

   638                 reportWarning("warn.unexpected.class", className, cfName.replace('/', '.'));

   639         }

   640         write(cfInfo);

   642         if (options.showInnerClasses) {

   643             ClassFile cf = cfInfo.cf;

   644             Attribute a = cf.getAttribute(Attribute.InnerClasses);

   645             if (a instanceof InnerClasses_attribute) {

   646                 InnerClasses_attribute inners = (InnerClasses_attribute) a;

   647                 try {

   648                     boolean ok = true;

   649                     for (int i = 0; i < inners.classes.length; i++) {

   650                         int outerIndex = inners.classes[i].outer_class_info_index;

   651                         ConstantPool.CONSTANT_Class_info outerClassInfo = cf.constant_pool.getClassInfo(outerIndex);

   652                         String outerClassName = outerClassInfo.getName();

   653                         if (outerClassName.equals(cf.getName())) {

   654                             int innerIndex = inners.classes[i].inner_class_info_index;

   655                             ConstantPool.CONSTANT_Class_info innerClassInfo = cf.constant_pool.getClassInfo(innerIndex);

   656                             String innerClassName = innerClassInfo.getName();

   657                             classWriter.println("// inner class " + innerClassName.replaceAll("[/$]", "."));

   658                             classWriter.println();

   659                             ok = ok & writeClass(classWriter, innerClassName);

   660                         }

   661                     }

   662                     return ok;

   663                 } catch (ConstantPoolException e) {

   664                     reportError("err.bad.innerclasses.attribute", className);

   665                     return false;

   666                 }

   667             } else if (a != null) {

   668                 reportError("err.bad.innerclasses.attribute", className);

   669                 return false;

   670             }

   671         }

   673         return true;

   674     }

   676     protected JavaFileObject open(String className) throws IOException {

   677         // for compatibility, first see if it is a class name

   678         JavaFileObject fo = getClassFileObject(className);

   679         if (fo != null)

   680             return fo;

   682         // see if it is an inner class, by replacing dots to $, starting from the right

   683         String cn = className;

   684         int lastDot;

   685         while ((lastDot = cn.lastIndexOf(".")) != -1) {

   686             cn = cn.substring(0, lastDot) + "$" + cn.substring(lastDot + 1);

   687             fo = getClassFileObject(cn);

   688             if (fo != null)

   689                 return fo;

   690         }

   692         if (!className.endsWith(".class"))

   693             return null;

   695         if (fileManager instanceof StandardJavaFileManager) {

   696             StandardJavaFileManager sfm = (StandardJavaFileManager) fileManager;

   697             fo = sfm.getJavaFileObjects(className).iterator().next();

   698             if (fo != null && fo.getLastModified() != 0) {

   699                 return fo;

   700             }

   701         }

   703         // see if it is a URL, and if so, wrap it in just enough of a JavaFileObject

   704         // to suit javap's needs

   705         if (className.matches("^[A-Za-z]+:.*")) {

   706             try {

   707                 final URI uri = new URI(className);

   708                 final URL url = uri.toURL();

   709                 final URLConnection conn = url.openConnection();

   710                 return new JavaFileObject() {

   711                     public Kind getKind() {

   712                         return JavaFileObject.Kind.CLASS;

   713                     }

   715                     public boolean isNameCompatible(String simpleName, Kind kind) {

   716                         throw new UnsupportedOperationException();

   717                     }

   719                     public NestingKind getNestingKind() {

   720                         throw new UnsupportedOperationException();

   721                     }

   723                     public Modifier getAccessLevel() {

   724                         throw new UnsupportedOperationException();

   725                     }

   727                     public URI toUri() {

   728                         return uri;

   729                     }

   731                     public String getName() {

   732                         return url.toString();

   733                     }

   735                     public InputStream openInputStream() throws IOException {

   736                         return conn.getInputStream();

   737                     }

   739                     public OutputStream openOutputStream() throws IOException {

   740                         throw new UnsupportedOperationException();

   741                     }

   743                     public Reader openReader(boolean ignoreEncodingErrors) throws IOException {

   744                         throw new UnsupportedOperationException();

   745                     }

   747                     public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {

   748                         throw new UnsupportedOperationException();

   749                     }

   751                     public Writer openWriter() throws IOException {

   752                         throw new UnsupportedOperationException();

   753                     }

   755                     public long getLastModified() {

   756                         return conn.getLastModified();

   757                     }

   759                     public boolean delete() {

   760                         throw new UnsupportedOperationException();

   761                     }

   763                 };

   764             } catch (URISyntaxException ignore) {

   765             } catch (IOException ignore) {

   766             }

   767         }

   769         return null;

   770     }

   772     public static class ClassFileInfo {

   773         ClassFileInfo(JavaFileObject fo, ClassFile cf, byte[] digest, int size) {

   774             this.fo = fo;

   775             this.cf = cf;

   776             this.digest = digest;

   777             this.size = size;

   778         }

   779         public final JavaFileObject fo;

   780         public final ClassFile cf;

   781         public final byte[] digest;

   782         public final int size;

   783     }

   785     public ClassFileInfo read(JavaFileObject fo) throws IOException, ConstantPoolException {

   786         InputStream in = fo.openInputStream();

   787         try {

   788             SizeInputStream sizeIn = null;

   789             MessageDigest md  = null;

   790             if (options.sysInfo || options.verbose) {

   791                 try {

   792                     md = MessageDigest.getInstance("MD5");

   793                 } catch (NoSuchAlgorithmException ignore) {

   794                 }

   795                 in = new DigestInputStream(in, md);

   796                 in = sizeIn = new SizeInputStream(in);

   797             }

   799             ClassFile cf = ClassFile.read(in, attributeFactory);

   800             byte[] digest = (md == null) ? null : md.digest();

   801             int size = (sizeIn == null) ? -1 : sizeIn.size();

   802             return new ClassFileInfo(fo, cf, digest, size);

   803         } finally {

   804             in.close();

   805         }

   806     }

   808     public void write(ClassFileInfo info) {

   809         ClassWriter classWriter = ClassWriter.instance(context);

   810         if (options.sysInfo || options.verbose) {

   811             classWriter.setFile(info.fo.toUri());

   812             classWriter.setLastModified(info.fo.getLastModified());

   813             classWriter.setDigest("MD5", info.digest);

   814             classWriter.setFileSize(info.size);

   815         }

   817         classWriter.write(info.cf);

   818     }

   820     protected void setClassFile(ClassFile classFile) {

   821         ClassWriter classWriter = ClassWriter.instance(context);

   822         classWriter.setClassFile(classFile);

   823     }

   825     protected void setMethod(Method enclosingMethod) {

   826         ClassWriter classWriter = ClassWriter.instance(context);

   827         classWriter.setMethod(enclosingMethod);

   828     }

   830     protected void write(Attribute value) {

   831         AttributeWriter attrWriter = AttributeWriter.instance(context);

   832         ClassWriter classWriter = ClassWriter.instance(context);

   833         ClassFile cf = classWriter.getClassFile();

   834         attrWriter.write(cf, value, cf.constant_pool);

   835     }

   837     protected void write(Attributes attrs) {

   838         AttributeWriter attrWriter = AttributeWriter.instance(context);

   839         ClassWriter classWriter = ClassWriter.instance(context);

   840         ClassFile cf = classWriter.getClassFile();

   841         attrWriter.write(cf, attrs, cf.constant_pool);

   842     }

   844     protected void write(ConstantPool constant_pool) {

   845         ConstantWriter constantWriter = ConstantWriter.instance(context);

   846         constantWriter.writeConstantPool(constant_pool);

   847     }

   849     protected void write(ConstantPool constant_pool, int value) {

   850         ConstantWriter constantWriter = ConstantWriter.instance(context);

   851         constantWriter.write(value);

   852     }

   854     protected void write(ConstantPool.CPInfo value) {

   855         ConstantWriter constantWriter = ConstantWriter.instance(context);

   856         constantWriter.println(value);

   857     }

   859     protected void write(Field value) {

   860         ClassWriter classWriter = ClassWriter.instance(context);

   861         classWriter.writeField(value);

   862     }

   864     protected void write(Method value) {

   865         ClassWriter classWriter = ClassWriter.instance(context);

   866         classWriter.writeMethod(value);

   867     }

   869     private JavaFileManager getDefaultFileManager(final DiagnosticListener<? super JavaFileObject> dl, PrintWriter log) {

   870         if (defaultFileManager == null)

   871             defaultFileManager = JavapFileManager.create(dl, log);

   872         return defaultFileManager;

   873     }

   875     private JavaFileObject getClassFileObject(String className) throws IOException {

   876         JavaFileObject fo;

   877         fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS);

   878         if (fo == null)

   879             fo = fileManager.getJavaFileForInput(StandardLocation.CLASS_PATH, className, JavaFileObject.Kind.CLASS);

   880         return fo;

   881     }

   883     private void showHelp() {

   884         log.println(getMessage("main.usage", progname));

   885         for (Option o: recognizedOptions) {

   886             String name = o.aliases[0].substring(1); // there must always be at least one name

   887             if (name.startsWith("X") || name.equals("fullversion") || name.equals("h") || name.equals("verify"))

   888                 continue;

   889             log.println(getMessage("main.opt." + name));

   890         }

   891         String[] fmOptions = { "-classpath", "-bootclasspath" };

   892         for (String o: fmOptions) {

   893             if (fileManager.isSupportedOption(o) == -1)

   894                 continue;

   895             String name = o.substring(1);

   896             log.println(getMessage("main.opt." + name));

   897         }

   899     }

   901     private void showVersion(boolean full) {

   902         log.println(version(full ? "full" : "release"));

   903     }

   905     private static final String versionRBName = "com.sun.tools.javap.resources.version";

   906     private static ResourceBundle versionRB;

   908     private String version(String key) {

   909         // key=version:  mm.nn.oo[-milestone]

   910         // key=full:     mm.mm.oo[-milestone]-build

   911         if (versionRB == null) {

   912             try {

   913                 versionRB = ResourceBundle.getBundle(versionRBName);

   914             } catch (MissingResourceException e) {

   915                 return getMessage("version.resource.missing", System.getProperty("java.version"));

   916             }

   917         }

   918         try {

   919             return versionRB.getString(key);

   920         }

   921         catch (MissingResourceException e) {

   922             return getMessage("version.unknown", System.getProperty("java.version"));

   923         }

   924     }

   926     private void reportError(String key, Object... args) {

   927         diagnosticListener.report(createDiagnostic(Diagnostic.Kind.ERROR, key, args));

   928     }

   930     private void reportNote(String key, Object... args) {

   931         diagnosticListener.report(createDiagnostic(Diagnostic.Kind.NOTE, key, args));

   932     }

   934     private void reportWarning(String key, Object... args) {

   935         diagnosticListener.report(createDiagnostic(Diagnostic.Kind.WARNING, key, args));

   936     }

   938     private Diagnostic<JavaFileObject> createDiagnostic(

   939             final Diagnostic.Kind kind, final String key, final Object... args) {

   940         return new Diagnostic<JavaFileObject>() {

   941             public Kind getKind() {

   942                 return kind;

   943             }

   945             public JavaFileObject getSource() {

   946                 return null;

   947             }

   949             public long getPosition() {

   950                 return Diagnostic.NOPOS;

   951             }

   953             public long getStartPosition() {

   954                 return Diagnostic.NOPOS;

   955             }

   957             public long getEndPosition() {

   958                 return Diagnostic.NOPOS;

   959             }

   961             public long getLineNumber() {

   962                 return Diagnostic.NOPOS;

   963             }

   965             public long getColumnNumber() {

   966                 return Diagnostic.NOPOS;

   967             }

   969             public String getCode() {

   970                 return key;

   971             }

   973             public String getMessage(Locale locale) {

   974                 return JavapTask.this.getMessage(locale, key, args);

   975             }

   977             @Override

   978             public String toString() {

   979                 return getClass().getName() + "[key=" + key + ",args=" + Arrays.asList(args) + "]";

   980             }

   982         };

   984     }

   986     public String getMessage(String key, Object... args) {

   987         return getMessage(task_locale, key, args);

   988     }

   990     public String getMessage(Locale locale, String key, Object... args) {

   991         if (bundles == null) {

   992             // could make this a HashMap<Locale,SoftReference<ResourceBundle>>

   993             // and for efficiency, keep a hard reference to the bundle for the task

   994             // locale

   995             bundles = new HashMap<Locale, ResourceBundle>();

   996         }

   998         if (locale == null)

   999             locale = Locale.getDefault();

  1001         ResourceBundle b = bundles.get(locale);

  1002         if (b == null) {

  1003             try {

  1004                 b = ResourceBundle.getBundle("com.sun.tools.javap.resources.javap", locale);

  1005                 bundles.put(locale, b);

  1006             } catch (MissingResourceException e) {

  1007                 throw new InternalError("Cannot find javap resource bundle for locale " + locale);

  1008             }

  1009         }

  1011         try {

  1012             return MessageFormat.format(b.getString(key), args);

  1013         } catch (MissingResourceException e) {

  1014             throw new InternalError(e, key);

  1015         }

  1016     }

  1018     protected Context context;

  1019     JavaFileManager fileManager;

  1020     JavaFileManager defaultFileManager;

  1021     PrintWriter log;

  1022     DiagnosticListener<? super JavaFileObject> diagnosticListener;

  1023     List<String> classes;

  1024     Options options;

  1025     //ResourceBundle bundle;

  1026     Locale task_locale;

  1027     Map<Locale, ResourceBundle> bundles;

  1028     protected Attribute.Factory attributeFactory;

  1030     private static final String progname = "javap";

  1032     private static class SizeInputStream extends FilterInputStream {

  1033         SizeInputStream(InputStream in) {

  1034             super(in);

  1035         }

  1037         int size() {

  1038             return size;

  1039         }

  1041         @Override

  1042         public int read(byte[] buf, int offset, int length) throws IOException {

  1043             int n = super.read(buf, offset, length);

  1044             if (n > 0)

  1045                 size += n;

  1046             return n;

  1047         }

  1049         @Override

  1050         public int read() throws IOException {

  1051             int b = super.read();

  1052             size += 1;

  1053             return b;

  1054         }

  1056         private int size;

  1057     }

  1058 }

Mercurial > jdk8-mips64-public > langtools / file revision

src/share/classes/com/sun/tools/javap/JavapTask.java@261c54b2312e

src/share/classes/com/sun/tools/javap/JavapTask.java