jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javap/JavapTask.java@792c40d5185a

     1 /*

     2  * Copyright (c) 2007, 2013, Oracle and/or its affiliates. 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.  Oracle designates this

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

     9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * 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 supported API.

    73  *  If 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 final 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.showDescriptors = true;

   144                 task.options.showFlags = true;

   145                 task.options.showAllAttrs = true;

   146             }

   147         },

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

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

   151                 task.options.showLineAndLocalVariableTables = true;

   152             }

   153         },

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

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

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

   158                 task.options.showAccess = AccessFlags.ACC_PUBLIC;

   159             }

   160         },

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

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

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

   165                 task.options.showAccess = AccessFlags.ACC_PROTECTED;

   166             }

   167         },

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

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

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

   172                 task.options.showAccess = 0;

   173             }

   174         },

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

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

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

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

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

   181                 }

   182                 task.options.showAccess = AccessFlags.ACC_PRIVATE;

   183             }

   184         },

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

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

   188                 task.options.showDisassembled = true;

   189             }

   190         },

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

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

   194                 task.options.showDescriptors = true;

   195             }

   196         },

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

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

   200 //                task.options.showAllAttrs = true;

   201 //            }

   202 //        },

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

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

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

   207             }

   208         },

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

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

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

   213             }

   214         },

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

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

   218                 task.options.sysInfo = true;

   219             }

   220         },

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

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

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

   225             }

   226         },

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

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

   230                 // ignore: this _is_ the new version

   231             }

   232         },

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

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

   236                 task.options.compat = true;

   237             }

   238         },

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

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

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

   243             }

   245         },

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

   248             @Override

   249             boolean matches(String opt) {

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

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

   252             }

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

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

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

   257                     if (!handleArg(task, v))

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

   259                 }

   260             }

   262             boolean handleArg(JavapTask task, String arg) {

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

   264                     return true;

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

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

   268                     return true;

   269                 }

   271                 boolean on = true;

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

   273                     on = false;

   274                     arg = arg.substring(1);

   275                 }

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

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

   279                         if (on)

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

   281                         else

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

   283                         return true;

   284                     }

   285                 }

   286                 return false;

   287             }

   288         },

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

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

   292                 task.options.showConstants = true;

   293             }

   294         },

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

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

   298                 task.options.showInnerClasses = true;

   299             }

   300         },

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

   303             @Override

   304             boolean matches(String opt) {

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

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

   307             }

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

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

   311                 try {

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

   313                 } catch (NumberFormatException e) {

   314                 }

   315             }

   316         },

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

   319             @Override

   320             boolean matches(String opt) {

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

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

   323             }

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

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

   327                 try {

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

   329                 } catch (NumberFormatException e) {

   330                 }

   331             }

   332         }

   334     };

   336     public JavapTask() {

   337         context = new Context();

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

   339         options = Options.instance(context);

   340         attributeFactory = new Attribute.Factory();

   341     }

   343     public JavapTask(Writer out,

   344             JavaFileManager fileManager,

   345             DiagnosticListener<? super JavaFileObject> diagnosticListener) {

   346         this();

   347         this.log = getPrintWriterForWriter(out);

   348         this.fileManager = fileManager;

   349         this.diagnosticListener = diagnosticListener;

   350     }

   352     public JavapTask(Writer out,

   353             JavaFileManager fileManager,

   354             DiagnosticListener<? super JavaFileObject> diagnosticListener,

   355             Iterable<String> options,

   356             Iterable<String> classes) {

   357         this(out, fileManager, diagnosticListener);

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

   360         for (String classname: classes) {

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

   362             this.classes.add(classname);

   363         }

   365         try {

   366             if (options != null)

   367                 handleOptions(options, false);

   368         } catch (BadArgs e) {

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

   370         }

   371     }

   373     public void setLocale(Locale locale) {

   374         if (locale == null)

   375             locale = Locale.getDefault();

   376         task_locale = locale;

   377     }

   379     public void setLog(Writer log) {

   380         this.log = getPrintWriterForWriter(log);

   381     }

   383     public void setLog(OutputStream s) {

   384         setLog(getPrintWriterForStream(s));

   385     }

   387     private static PrintWriter getPrintWriterForStream(OutputStream s) {

   388         return new PrintWriter(s == null ? System.err : s, true);

   389     }

   391     private static PrintWriter getPrintWriterForWriter(Writer w) {

   392         if (w == null)

   393             return getPrintWriterForStream(null);

   394         else if (w instanceof PrintWriter)

   395             return (PrintWriter) w;

   396         else

   397             return new PrintWriter(w, true);

   398     }

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

   401         diagnosticListener = dl;

   402     }

   404     public void setDiagnosticListener(OutputStream s) {

   405         setDiagnosticListener(getDiagnosticListenerForStream(s));

   406     }

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

   409         return getDiagnosticListenerForWriter(getPrintWriterForStream(s));

   410     }

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

   413         final PrintWriter pw = getPrintWriterForWriter(w);

   414         return new DiagnosticListener<JavaFileObject> () {

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

   416                 switch (diagnostic.getKind()) {

   417                     case ERROR:

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

   419                         break;

   420                     case WARNING:

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

   422                         break;

   423                     case NOTE:

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

   425                         break;

   426                 }

   427                 pw.print(" ");

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

   429             }

   430         };

   431     }

   433     /** Result codes.

   434      */

   435     static final int

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

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

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

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

   440         EXIT_ABNORMAL = 4;  // Compiler terminated abnormally

   442     int run(String[] args) {

   443         try {

   444             handleOptions(args);

   446             // the following gives consistent behavior with javac

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

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

   449                     return EXIT_OK;

   450                 else

   451                     return EXIT_CMDERR;

   452             }

   454             try {

   455                 return run();

   456             } finally {

   457                 if (defaultFileManager != null) {

   458                     try {

   459                         defaultFileManager.close();

   460                         defaultFileManager = null;

   461                     } catch (IOException e) {

   462                         throw new InternalError(e);

   463                     }

   464                 }

   465             }

   466         } catch (BadArgs e) {

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

   468             if (e.showUsage) {

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

   470             }

   471             return EXIT_CMDERR;

   472         } catch (InternalError e) {

   473             Object[] e_args;

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

   475                 e_args = e.args;

   476             else {

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

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

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

   480             }

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

   482             return EXIT_ABNORMAL;

   483         } finally {

   484             log.flush();

   485         }

   486     }

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

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

   490     }

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

   493         if (log == null) {

   494             log = getPrintWriterForStream(System.out);

   495             if (diagnosticListener == null)

   496               diagnosticListener = getDiagnosticListenerForStream(System.err);

   497         } else {

   498             if (diagnosticListener == null)

   499               diagnosticListener = getDiagnosticListenerForWriter(log);

   500         }

   503         if (fileManager == null)

   504             fileManager = getDefaultFileManager(diagnosticListener, log);

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

   507         boolean noArgs = !iter.hasNext();

   509         while (iter.hasNext()) {

   510             String arg = iter.next();

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

   512                 handleOption(arg, iter);

   513             else if (allowClasses) {

   514                 if (classes == null)

   515                     classes = new ArrayList<String>();

   516                 classes.add(arg);

   517                 while (iter.hasNext())

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

   519             } else

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

   521         }

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

   524             StringBuilder sb = new StringBuilder();

   525             for (String opt: options.accessOptions) {

   526                 if (sb.length() > 0)

   527                     sb.append(" ");

   528                 sb.append(opt);

   529             }

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

   531         }

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

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

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

   536         }

   538         if (noArgs || options.help)

   539             showHelp();

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

   542             showVersion(options.fullVersion);

   543     }

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

   546         for (Option o: recognizedOptions) {

   547             if (o.matches(name)) {

   548                 if (o.hasArg) {

   549                     if (rest.hasNext())

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

   551                     else

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

   553                 } else

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

   556                 if (o.ignoreRest()) {

   557                     while (rest.hasNext())

   558                         rest.next();

   559                 }

   560                 return;

   561             }

   562         }

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

   565             return;

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

   568     }

   570     public Boolean call() {

   571         return run() == 0;

   572     }

   574     public int run() {

   575         if (classes == null || classes.isEmpty()) {

   576             return EXIT_ERROR;

   577         }

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

   580         ClassWriter classWriter = ClassWriter.instance(context);

   581         SourceWriter sourceWriter = SourceWriter.instance(context);

   582         sourceWriter.setFileManager(fileManager);

   584         attributeFactory.setCompat(options.compat);

   586         int result = EXIT_OK;

   588         for (String className: classes) {

   589             try {

   590                 result = writeClass(classWriter, className);

   591             } catch (ConstantPoolException e) {

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

   593                 result = EXIT_ERROR;

   594             } catch (EOFException e) {

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

   596                 result = EXIT_ERROR;

   597             } catch (FileNotFoundException e) {

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

   599                 result = EXIT_ERROR;

   600             } catch (IOException e) {

   601                 //e.printStackTrace();

   602                 Object msg = e.getLocalizedMessage();

   603                 if (msg == null) {

   604                     msg = e;

   605                 }

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

   607                 result = EXIT_ERROR;

   608             } catch (Throwable t) {

   609                 StringWriter sw = new StringWriter();

   610                 PrintWriter pw = new PrintWriter(sw);

   611                 t.printStackTrace(pw);

   612                 pw.close();

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

   614                 result = EXIT_ABNORMAL;

   615             }

   616         }

   618         return result;

   619     }

   621     protected int writeClass(ClassWriter classWriter, String className)

   622             throws IOException, ConstantPoolException {

   623         JavaFileObject fo = open(className);

   624         if (fo == null) {

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

   626             return EXIT_ERROR;

   627         }

   629         ClassFileInfo cfInfo = read(fo);

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

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

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

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

   634             }

   635         }

   636         write(cfInfo);

   638         if (options.showInnerClasses) {

   639             ClassFile cf = cfInfo.cf;

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

   641             if (a instanceof InnerClasses_attribute) {

   642                 InnerClasses_attribute inners = (InnerClasses_attribute) a;

   643                 try {

   644                     int result = EXIT_OK;

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

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

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

   648                         String outerClassName = outerClassInfo.getName();

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

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

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

   652                             String innerClassName = innerClassInfo.getName();

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

   654                             classWriter.println();

   655                             result = writeClass(classWriter, innerClassName);

   656                             if (result != EXIT_OK) return result;

   657                         }

   658                     }

   659                     return result;

   660                 } catch (ConstantPoolException e) {

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

   662                     return EXIT_ERROR;

   663                 }

   664             } else if (a != null) {

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

   666                 return EXIT_ERROR;

   667             }

   668         }

   670         return EXIT_OK;

   671     }

   673     protected JavaFileObject open(String className) throws IOException {

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

   675         JavaFileObject fo = getClassFileObject(className);

   676         if (fo != null)

   677             return fo;

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

   680         String cn = className;

   681         int lastDot;

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

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

   684             fo = getClassFileObject(cn);

   685             if (fo != null)

   686                 return fo;

   687         }

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

   690             return null;

   692         if (fileManager instanceof StandardJavaFileManager) {

   693             StandardJavaFileManager sfm = (StandardJavaFileManager) fileManager;

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

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

   696                 return fo;

   697             }

   698         }

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

   701         // to suit javap's needs

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

   703             try {

   704                 final URI uri = new URI(className);

   705                 final URL url = uri.toURL();

   706                 final URLConnection conn = url.openConnection();

   707                 return new JavaFileObject() {

   708                     public Kind getKind() {

   709                         return JavaFileObject.Kind.CLASS;

   710                     }

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

   713                         throw new UnsupportedOperationException();

   714                     }

   716                     public NestingKind getNestingKind() {

   717                         throw new UnsupportedOperationException();

   718                     }

   720                     public Modifier getAccessLevel() {

   721                         throw new UnsupportedOperationException();

   722                     }

   724                     public URI toUri() {

   725                         return uri;

   726                     }

   728                     public String getName() {

   729                         return url.toString();

   730                     }

   732                     public InputStream openInputStream() throws IOException {

   733                         return conn.getInputStream();

   734                     }

   736                     public OutputStream openOutputStream() throws IOException {

   737                         throw new UnsupportedOperationException();

   738                     }

   740                     public Reader openReader(boolean ignoreEncodingErrors) throws IOException {

   741                         throw new UnsupportedOperationException();

   742                     }

   744                     public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {

   745                         throw new UnsupportedOperationException();

   746                     }

   748                     public Writer openWriter() throws IOException {

   749                         throw new UnsupportedOperationException();

   750                     }

   752                     public long getLastModified() {

   753                         return conn.getLastModified();

   754                     }

   756                     public boolean delete() {

   757                         throw new UnsupportedOperationException();

   758                     }

   760                 };

   761             } catch (URISyntaxException ignore) {

   762             } catch (IOException ignore) {

   763             }

   764         }

   766         return null;

   767     }

   769     public static class ClassFileInfo {

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

   771             this.fo = fo;

   772             this.cf = cf;

   773             this.digest = digest;

   774             this.size = size;

   775         }

   776         public final JavaFileObject fo;

   777         public final ClassFile cf;

   778         public final byte[] digest;

   779         public final int size;

   780     }

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

   783         InputStream in = fo.openInputStream();

   784         try {

   785             SizeInputStream sizeIn = null;

   786             MessageDigest md  = null;

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

   788                 try {

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

   790                 } catch (NoSuchAlgorithmException ignore) {

   791                 }

   792                 in = new DigestInputStream(in, md);

   793                 in = sizeIn = new SizeInputStream(in);

   794             }

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

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

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

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

   800         } finally {

   801             in.close();

   802         }

   803     }

   805     public void write(ClassFileInfo info) {

   806         ClassWriter classWriter = ClassWriter.instance(context);

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

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

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

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

   811             classWriter.setFileSize(info.size);

   812         }

   814         classWriter.write(info.cf);

   815     }

   817     protected void setClassFile(ClassFile classFile) {

   818         ClassWriter classWriter = ClassWriter.instance(context);

   819         classWriter.setClassFile(classFile);

   820     }

   822     protected void setMethod(Method enclosingMethod) {

   823         ClassWriter classWriter = ClassWriter.instance(context);

   824         classWriter.setMethod(enclosingMethod);

   825     }

   827     protected void write(Attribute value) {

   828         AttributeWriter attrWriter = AttributeWriter.instance(context);

   829         ClassWriter classWriter = ClassWriter.instance(context);

   830         ClassFile cf = classWriter.getClassFile();

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

   832     }

   834     protected void write(Attributes attrs) {

   835         AttributeWriter attrWriter = AttributeWriter.instance(context);

   836         ClassWriter classWriter = ClassWriter.instance(context);

   837         ClassFile cf = classWriter.getClassFile();

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

   839     }

   841     protected void write(ConstantPool constant_pool) {

   842         ConstantWriter constantWriter = ConstantWriter.instance(context);

   843         constantWriter.writeConstantPool(constant_pool);

   844     }

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

   847         ConstantWriter constantWriter = ConstantWriter.instance(context);

   848         constantWriter.write(value);

   849     }

   851     protected void write(ConstantPool.CPInfo value) {

   852         ConstantWriter constantWriter = ConstantWriter.instance(context);

   853         constantWriter.println(value);

   854     }

   856     protected void write(Field value) {

   857         ClassWriter classWriter = ClassWriter.instance(context);

   858         classWriter.writeField(value);

   859     }

   861     protected void write(Method value) {

   862         ClassWriter classWriter = ClassWriter.instance(context);

   863         classWriter.writeMethod(value);

   864     }

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

   867         if (defaultFileManager == null)

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

   869         return defaultFileManager;

   870     }

   872     private JavaFileObject getClassFileObject(String className) throws IOException {

   873         JavaFileObject fo;

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

   875         if (fo == null)

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

   877         return fo;

   878     }

   880     private void showHelp() {

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

   882         for (Option o: recognizedOptions) {

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

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

   885                 continue;

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

   887         }

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

   889         for (String o: fmOptions) {

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

   891                 continue;

   892             String name = o.substring(1);

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

   894         }

   896     }

   898     private void showVersion(boolean full) {

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

   900     }

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

   903     private static ResourceBundle versionRB;

   905     private String version(String key) {

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

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

   908         if (versionRB == null) {

   909             try {

   910                 versionRB = ResourceBundle.getBundle(versionRBName);

   911             } catch (MissingResourceException e) {

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

   913             }

   914         }

   915         try {

   916             return versionRB.getString(key);

   917         }

   918         catch (MissingResourceException e) {

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

   920         }

   921     }

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

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

   925     }

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

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

   929     }

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

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

   933     }

   935     private Diagnostic<JavaFileObject> createDiagnostic(

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

   937         return new Diagnostic<JavaFileObject>() {

   938             public Kind getKind() {

   939                 return kind;

   940             }

   942             public JavaFileObject getSource() {

   943                 return null;

   944             }

   946             public long getPosition() {

   947                 return Diagnostic.NOPOS;

   948             }

   950             public long getStartPosition() {

   951                 return Diagnostic.NOPOS;

   952             }

   954             public long getEndPosition() {

   955                 return Diagnostic.NOPOS;

   956             }

   958             public long getLineNumber() {

   959                 return Diagnostic.NOPOS;

   960             }

   962             public long getColumnNumber() {

   963                 return Diagnostic.NOPOS;

   964             }

   966             public String getCode() {

   967                 return key;

   968             }

   970             public String getMessage(Locale locale) {

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

   972             }

   974             @Override

   975             public String toString() {

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

   977             }

   979         };

   981     }

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

   984         return getMessage(task_locale, key, args);

   985     }

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

   988         if (bundles == null) {

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

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

   991             // locale

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

   993         }

   995         if (locale == null)

   996             locale = Locale.getDefault();

   998         ResourceBundle b = bundles.get(locale);

   999         if (b == null) {

  1000             try {

  1001                 b = ResourceBundle.getBundle("com.sun.tools.javap.resources.javap", locale);

  1002                 bundles.put(locale, b);

  1003             } catch (MissingResourceException e) {

  1004                 throw new InternalError("Cannot find javap resource bundle for locale " + locale);

  1005             }

  1006         }

  1008         try {

  1009             return MessageFormat.format(b.getString(key), args);

  1010         } catch (MissingResourceException e) {

  1011             throw new InternalError(e, key);

  1012         }

  1013     }

  1015     protected Context context;

  1016     JavaFileManager fileManager;

  1017     JavaFileManager defaultFileManager;

  1018     PrintWriter log;

  1019     DiagnosticListener<? super JavaFileObject> diagnosticListener;

  1020     List<String> classes;

  1021     Options options;

  1022     //ResourceBundle bundle;

  1023     Locale task_locale;

  1024     Map<Locale, ResourceBundle> bundles;

  1025     protected Attribute.Factory attributeFactory;

  1027     private static final String progname = "javap";

  1029     private static class SizeInputStream extends FilterInputStream {

  1030         SizeInputStream(InputStream in) {

  1031             super(in);

  1032         }

  1034         int size() {

  1035             return size;

  1036         }

  1038         @Override

  1039         public int read(byte[] buf, int offset, int length) throws IOException {

  1040             int n = super.read(buf, offset, length);

  1041             if (n > 0)

  1042                 size += n;

  1043             return n;

  1044         }

  1046         @Override

  1047         public int read() throws IOException {

  1048             int b = super.read();

  1049             size += 1;

  1050             return b;

  1051         }

  1053         private int size;

  1054     }

  1055 }

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

src/share/classes/com/sun/tools/javap/JavapTask.java@792c40d5185a

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