jdk8-mips64-public/langtools: test/tools/javac/diags/CheckResourceKeys.java@959103a6100f (annotated)

test/tools/javac/diags/CheckResourceKeys.java@959103a6100f (annotated)

test/tools/javac/diags/CheckResourceKeys.java

Wed, 27 Apr 2016 01:34:52 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:34:52 +0800
changeset 0: 959103a6100f
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

 /*
  * Copyright (c) 2010, 2013, 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.
  *
  * 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.
  */
 /*
  * @test
  * @bug 6964768 6964461 6964469 6964487 6964460 6964481 6980021
  * @summary need test program to validate javac resource bundles
  */
 import java.io.*;
 import java.util.*;
 import javax.tools.*;
 import com.sun.tools.classfile.*;
 /**
  * Compare string constants in javac classes against keys in javac resource bundles.
  */
 public class CheckResourceKeys {
     /**
      * Main program.
      * Options:
      * -finddeadkeys
      *      look for keys in resource bundles that are no longer required
      * -findmissingkeys
      *      look for keys in resource bundles that are missing
      *
      * @throws Exception if invoked by jtreg and errors occur
      */
     public static void main(String... args) throws Exception {
         CheckResourceKeys c = new CheckResourceKeys();
         if (c.run(args))
             return;
         if (is_jtreg())
             throw new Exception(c.errors + " errors occurred");
         else
             System.exit(1);
     }
     static boolean is_jtreg() {
         return (System.getProperty("test.src") != null);
     }
     /**
      * Main entry point.
      */
     boolean run(String... args) throws Exception {
         boolean findDeadKeys = false;
         boolean findMissingKeys = false;
         if (args.length == 0) {
             if (is_jtreg()) {
                 findDeadKeys = true;
                 findMissingKeys = true;
             } else {
                 System.err.println("Usage: java CheckResourceKeys <options>");
                 System.err.println("where options include");
                 System.err.println("  -finddeadkeys      find keys in resource bundles which are no longer required");
                 System.err.println("  -findmissingkeys   find keys in resource bundles that are required but missing");
                 return true;
             }
         } else {
             for (String arg: args) {
                 if (arg.equalsIgnoreCase("-finddeadkeys"))
                     findDeadKeys = true;
                 else if (arg.equalsIgnoreCase("-findmissingkeys"))
                     findMissingKeys = true;
                 else
                     error("bad option: " + arg);
             }
         }
         if (errors > 0)
             return false;
         Set<String> codeStrings = getCodeStrings();
         Set<String> resourceKeys = getResourceKeys();
         if (findDeadKeys)
             findDeadKeys(codeStrings, resourceKeys);
         if (findMissingKeys)
             findMissingKeys(codeStrings, resourceKeys);
         return (errors == 0);
     }
     /**
      * Find keys in resource bundles which are probably no longer required.
      * A key is probably required if there is a string fragment in the code
      * that is part of the resource key, or if the key is well-known
      * according to various pragmatic rules.
      */
     void findDeadKeys(Set<String> codeStrings, Set<String> resourceKeys) {
         String[] prefixes = {
             "compiler.err.", "compiler.warn.", "compiler.note.", "compiler.misc.",
             "javac."
         };
         for (String rk: resourceKeys) {
             // some keys are used directly, without a prefix.
             if (codeStrings.contains(rk))
                 continue;
             // remove standard prefix
             String s = null;
             for (int i = 0; i < prefixes.length && s == null; i++) {
                 if (rk.startsWith(prefixes[i])) {
                     s = rk.substring(prefixes[i].length());
                 }
             }
             if (s == null) {
                 error("Resource key does not start with a standard prefix: " + rk);
                 continue;
             }
             if (codeStrings.contains(s))
                 continue;
             // keys ending in .1 are often synthesized
             if (s.endsWith(".1") && codeStrings.contains(s.substring(0, s.length() - 2)))
                 continue;
             // verbose keys are generated by ClassReader.printVerbose
             if (s.startsWith("verbose.") && codeStrings.contains(s.substring(8)))
                 continue;
             // mandatory warning messages are synthesized with no characteristic substring
             if (isMandatoryWarningString(s))
                 continue;
             // check known (valid) exceptions
             if (knownRequired.contains(rk))
                 continue;
             // check known suspects
             if (needToInvestigate.contains(rk))
                 continue;
             error("Resource key not found in code: " + rk);
         }
     }
     /**
      * The keys for mandatory warning messages are all synthesized and do not
      * have a significant recognizable substring to look for.
      */
     private boolean isMandatoryWarningString(String s) {
         String[] bases = { "deprecated", "unchecked", "varargs", "sunapi" };
         String[] tails = { ".filename", ".filename.additional", ".plural", ".plural.additional", ".recompile" };
         for (String b: bases) {
             if (s.startsWith(b)) {
                 String tail = s.substring(b.length());
                 for (String t: tails) {
                     if (tail.equals(t))
                         return true;
                 }
             }
         }
         return false;
     }
     Set<String> knownRequired = new TreeSet<String>(Arrays.asList(
         // See Resolve.getErrorKey
         "compiler.err.cant.resolve.args",
         "compiler.err.cant.resolve.args.params",
         "compiler.err.cant.resolve.location.args",
         "compiler.err.cant.resolve.location.args.params",
         "compiler.misc.cant.resolve.location.args",
         "compiler.misc.cant.resolve.location.args.params",
         // JavaCompiler, reports #errors and #warnings
         "compiler.misc.count.error",
         "compiler.misc.count.error.plural",
         "compiler.misc.count.warn",
         "compiler.misc.count.warn.plural",
         // Used for LintCategory
         "compiler.warn.lintOption",
         // Other
         "compiler.misc.base.membership"                                 // (sic)
         ));
     Set<String> needToInvestigate = new TreeSet<String>(Arrays.asList(
         "compiler.misc.fatal.err.cant.close.loader",        // Supressed by JSR308
         "compiler.err.cant.read.file",                      // UNUSED
         "compiler.err.illegal.self.ref",                    // UNUSED
         "compiler.err.io.exception",                        // UNUSED
         "compiler.err.limit.pool.in.class",                 // UNUSED
         "compiler.err.name.reserved.for.internal.use",      // UNUSED
         "compiler.err.no.match.entry",                      // UNUSED
         "compiler.err.not.within.bounds.explain",           // UNUSED
         "compiler.err.signature.doesnt.match.intf",         // UNUSED
         "compiler.err.signature.doesnt.match.supertype",    // UNUSED
         "compiler.err.type.var.more.than.once",             // UNUSED
         "compiler.err.type.var.more.than.once.in.result",   // UNUSED
         "compiler.misc.ccf.found.later.version",            // UNUSED
         "compiler.misc.non.denotable.type",                 // UNUSED
         "compiler.misc.unnamed.package",                    // should be required, CR 6964147
         "compiler.misc.verbose.retro",                      // UNUSED
         "compiler.misc.verbose.retro.with",                 // UNUSED
         "compiler.misc.verbose.retro.with.list",            // UNUSED
         "compiler.warn.proc.type.already.exists",           // TODO in JavacFiler
         "javac.err.invalid.arg",                            // UNUSED ??
         "javac.opt.arg.class",                              // UNUSED ??
         "javac.opt.arg.pathname",                           // UNUSED ??
         "javac.opt.moreinfo",                               // option commented out
         "javac.opt.nogj",                                   // UNUSED
         "javac.opt.printflat",                              // option commented out
         "javac.opt.printsearch",                            // option commented out
         "javac.opt.prompt",                                 // option commented out
         "javac.opt.retrofit",                               // UNUSED
         "javac.opt.s",                                      // option commented out
         "javac.opt.scramble",                               // option commented out
         "javac.opt.scrambleall"                             // option commented out
         ));
     /**
      * For all strings in the code that look like they might be fragments of
      * a resource key, verify that a key exists.
      */
     void findMissingKeys(Set<String> codeStrings, Set<String> resourceKeys) {
         for (String cs: codeStrings) {
             if (cs.matches("[A-Za-z][^.]*\\..*")) {
                 // ignore filenames (i.e. in SourceFile attribute
                 if (cs.matches(".*\\.java"))
                     continue;
                 // ignore package and class names
                 if (cs.matches("(com|java|javax|sun)\\.[A-Za-z.]+"))
                     continue;
                 // explicit known exceptions
                 if (noResourceRequired.contains(cs))
                     continue;
                 // look for matching resource
                 if (hasMatch(resourceKeys, cs))
                     continue;
                 error("no match for \"" + cs + "\"");
             }
         }
     }
     // where
     private Set<String> noResourceRequired = new HashSet<String>(Arrays.asList(
             // system properties
             "application.home", // in Paths.java
             "env.class.path",
             "line.separator",
             "os.name",
             "user.dir",
             // file names
             "ct.sym",
             "rt.jar",
             "tools.jar",
             // -XD option names
             "process.packages",
             "ignore.symbol.file",
             // prefix/embedded strings
             "compiler.",
             "compiler.misc.",
             "count.",
             "illegal.",
             "javac.",
             "verbose."
     ));
     /**
      * Look for a resource that ends in this string fragment.
      */
     boolean hasMatch(Set<String> resourceKeys, String s) {
         for (String rk: resourceKeys) {
             if (rk.endsWith(s))
                 return true;
         }
         return false;
     }
     /**
      * Get the set of strings from (most of) the javac classfiles.
      */
     Set<String> getCodeStrings() throws IOException {
         Set<String> results = new TreeSet<String>();
         JavaCompiler c = ToolProvider.getSystemJavaCompiler();
         JavaFileManager fm = c.getStandardFileManager(null, null, null);
         JavaFileManager.Location javacLoc = findJavacLocation(fm);
         String[] pkgs = {
             "javax.annotation.processing",
             "javax.lang.model",
             "javax.tools",
             "com.sun.source",
             "com.sun.tools.javac"
         };
         for (String pkg: pkgs) {
             for (JavaFileObject fo: fm.list(javacLoc,
                     pkg, EnumSet.of(JavaFileObject.Kind.CLASS), true)) {
                 String name = fo.getName();
                 // ignore resource files, and files which are not really part of javac
                 if (name.matches(".*resources.[A-Za-z_0-9]+\\.class.*")
                         || name.matches(".*CreateSymbols\\.class.*"))
                     continue;
                 scan(fo, results);
             }
         }
         return results;
     }
     // depending on how the test is run, javac may be on bootclasspath or classpath
     JavaFileManager.Location findJavacLocation(JavaFileManager fm) {
         JavaFileManager.Location[] locns =
             { StandardLocation.PLATFORM_CLASS_PATH, StandardLocation.CLASS_PATH };
         try {
             for (JavaFileManager.Location l: locns) {
                 JavaFileObject fo = fm.getJavaFileForInput(l,
                     "com.sun.tools.javac.Main", JavaFileObject.Kind.CLASS);
                 if (fo != null)
                     return l;
             }
         } catch (IOException e) {
             throw new Error(e);
         }
         throw new IllegalStateException("Cannot find javac");
     }
     /**
      * Get the set of strings from a class file.
      * Only strings that look like they might be a resource key are returned.
      */
     void scan(JavaFileObject fo, Set<String> results) throws IOException {
         InputStream in = fo.openInputStream();
         try {
             ClassFile cf = ClassFile.read(in);
             for (ConstantPool.CPInfo cpinfo: cf.constant_pool.entries()) {
                 if (cpinfo.getTag() == ConstantPool.CONSTANT_Utf8) {
                     String v = ((ConstantPool.CONSTANT_Utf8_info) cpinfo).value;
                     if (v.matches("[A-Za-z0-9-_.]+"))
                         results.add(v);
                 }
             }
         } catch (ConstantPoolException ignore) {
         } finally {
             in.close();
         }
     }
     /**
      * Get the set of keys from the javac resource bundles.
      */
     Set<String> getResourceKeys() {
         Set<String> results = new TreeSet<String>();
         for (String name : new String[]{"javac", "compiler"}) {
             ResourceBundle b =
                     ResourceBundle.getBundle("com.sun.tools.javac.resources." + name);
             results.addAll(b.keySet());
         }
         return results;
     }
     /**
      * Report an error.
      */
     void error(String msg) {
         System.err.println("Error: " + msg);
         errors++;
     }
     int errors;
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/diags/CheckResourceKeys.java@959103a6100f (annotated)

test/tools/javac/diags/CheckResourceKeys.java