jdk8-mips64-public/langtools: test/tools/javac/processing/T6920317.java@2eb010b6cb22 (annotated)

test/tools/javac/processing/T6920317.java@2eb010b6cb22 (annotated)

test/tools/javac/processing/T6920317.java

Thu, 31 Aug 2017 15:17:03 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525: 2eb010b6cb22
parent 1466: b52a38d4536c
parent 0: 959103a6100f
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * 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 6920317
  * @summary package-info.java file has to be specified on the javac cmdline, else it will not be avail
  * @library /tools/javac/lib
  */
 import java.io.*;
 import java.util.*;
 import javax.annotation.processing.*;
 import javax.lang.model.*;
 import javax.lang.model.element.*;
 import javax.lang.model.util.*;
 import javax.tools.*;
 /**
  * The test exercises different ways of providing annotations for a package.
  * Each way provides an annotation with a unique argument. For each test
  * case, the test verifies that the annotation with the correct argument is
  * found by the compiler.
  */
 public class T6920317 {
     public static void main(String... args) throws Exception {
         new T6920317().run(args);
     }
     // Used to describe properties of files to be put on command line, source path, class path
     enum Kind {
         /** File is not used. */
         NONE,
         /** File is used. */
         OLD,
         /** Only applies to files on classpath/sourcepath, when there is another file on the
          *  other path of type OLD, in which case, this file must be newer than the other one. */
         NEW,
         /** Only applies to files on classpath/sourcepath, when there is no file in any other
          *  location, in which case, this file will be generated by the annotation processor. */
         GEN
     }
     void run(String... args) throws Exception {
         // if no args given, all test cases are run
         // if args given, they indicate the test cases to be run
         for (int i = 0; i < args.length; i++) {
             tests.add(Integer.valueOf(args[i]));
         }
         setup();
         // Run tests for all combinations of files on command line, source path and class path.
         // Invalid combinations are skipped in the test method
         for (Kind cmdLine: EnumSet.of(Kind.NONE, Kind.OLD)) {
             for (Kind srcPath: Kind.values()) {
                 for (Kind clsPath: Kind.values()) {
                     try {
                         test(cmdLine, srcPath, clsPath);
                     } catch (Exception e) {
                         e.printStackTrace();
                         error("Exception " + e);
                         // uncomment to stop on first failed test case
                         // throw e;
                     }
                 }
             }
         }
         if (errors > 0)
             throw new Exception(errors + " errors occurred");
     }
     /** One time setup for files and directories to be used in the various test cases. */
     void setup() throws Exception {
         // Annotation used in test cases to annotate package. This file is
         // given on the command line in test cases.
         test_java = writeFile("Test.java", "package p; @interface Test { String value(); }");
         // Compile the annotation for use later in setup
         File tmpClasses = new File("tmp.classes");
         compile(tmpClasses, new String[] { }, test_java);
         // package-info file to use on the command line when requied
         cl_pkgInfo_java = writeFile("cl/p/package-info.java", "@Test(\"CL\") package p;");
         // source path containing package-info
         sp_old = new File("src.old");
         writeFile("src.old/p/package-info.java", "@Test(\"SP_OLD\") package p;");
         // class path containing package-info
         cp_old = new File("classes.old");
         compile(cp_old, new String[] { "-classpath", tmpClasses.getPath() },
                 writeFile("tmp.old/p/package-info.java", "@Test(\"CP_OLD\") package p;"));
         // source path containing package-info which is newer than the one in cp-old
         sp_new = new File("src.new");
         File old_class = new File(cp_old, "p/package-info.class");
         writeFile("src.new/p/package-info.java", "@Test(\"SP_NEW\") package p;", old_class);
         // class path containing package-info which is newer than the one in sp-old
         cp_new = new File("classes.new");
         File old_java = new File(sp_old, "p/package-info.java");
         compile(cp_new, new String[] { "-classpath", tmpClasses.getPath() },
                 writeFile("tmp.new/p/package-info.java", "@Test(\"CP_NEW\") package p;", old_java));
         // directory containing package-info.java to be "generated" later by annotation processor
         sp_gen = new File("src.gen");
         writeFile("src.gen/p/package-info.java", "@Test(\"SP_GEN\") package p;");
         // directory containing package-info.class to be "generated" later by annotation processor
         cp_gen = new File("classes.gen");
         compile(cp_gen, new String[] { "-classpath", tmpClasses.getPath() },
                 writeFile("tmp.gen/p/package-info.java", "@Test(\"CP_GEN\") package p;"));
     }
     void test(Kind cl, Kind sp, Kind cp) throws Exception {
         if (skip(cl, sp, cp))
             return;
         ++count;
         // if test cases specified, skip this test case if not selected
         if (tests.size() > 0 && !tests.contains(count))
             return;
         System.err.println("Test " + count + " cl:" + cl + " sp:" + sp + " cp:" + cp);
         // test specific tmp directory
         File test_tmp = new File("tmp.test" + count);
         test_tmp.mkdirs();
         // build up list of options and files to be compiled
         List<String> opts = new ArrayList<String>();
         List<File> files = new ArrayList<File>();
         // expected value for annotation
         String expect = null;
         opts.add("-processorpath");
         String testClasses = System.getProperty("test.classes");
         String testClassPath = System.getProperty("test.class.path", testClasses);
         opts.add(testClassPath);
         opts.add("-processor");
         opts.add(Processor.class.getName());
         opts.add("-proc:only");
         opts.add("-d");
         opts.add(test_tmp.getPath());
         //opts.add("-verbose");
         files.add(test_java);
         /*
          * Analyze each of cl, cp, sp, building up the options and files to
          * be compiled, and determining the expected outcome fo the test case.
          */
         // command line file: either omitted or given
         if (cl == Kind.OLD) {
             files.add(cl_pkgInfo_java);
             // command line files always supercede files on paths
             expect = "CL";
         }
         // source path:
         switch (sp) {
         case NONE:
             break;
         case OLD:
             opts.add("-sourcepath");
             opts.add(sp_old.getPath());
             if (expect == null && cp == Kind.NONE) {
                 assert cl == Kind.NONE && cp == Kind.NONE;
                 expect = "SP_OLD";
             }
             break;
         case NEW:
             opts.add("-sourcepath");
             opts.add(sp_new.getPath());
             if (expect == null) {
                 assert cl == Kind.NONE && cp == Kind.OLD;
                 expect = "SP_NEW";
             }
             break;
         case GEN:
             opts.add("-Agen=" + new File(sp_gen, "p/package-info.java"));
             assert cl == Kind.NONE && cp == Kind.NONE;
             expect = "SP_GEN";
             break;
         }
         // class path:
         switch (cp) {
         case NONE:
             break;
         case OLD:
             opts.add("-classpath");
             opts.add(cp_old.getPath());
             if (expect == null && sp == Kind.NONE) {
                 assert cl == Kind.NONE && sp == Kind.NONE;
                 expect = "CP_OLD";
             }
             break;
         case NEW:
             opts.add("-classpath");
             opts.add(cp_new.getPath());
             if (expect == null) {
                 assert cl == Kind.NONE && sp == Kind.OLD;
                 expect = "CP_NEW";
             }
             break;
         case GEN:
             opts.add("-Agen=" + new File(cp_gen, "p/package-info.class"));
             assert cl == Kind.NONE && sp == Kind.NONE;
             expect = "CP_GEN";
             break;
         }
         // pass expected value to annotation processor
         assert expect != null;
         opts.add("-Aexpect=" + expect);
         // compile the files with the options that have been built up
         compile(opts, files);
     }
     /**
      * Return true if this combination of parameters does not identify a useful test case.
      */
     boolean skip(Kind cl, Kind sp, Kind cp) {
         // skip if no package files required
         if (cl == Kind.NONE && sp == Kind.NONE && cp == Kind.NONE)
             return true;
         // skip if both sp and sp are OLD, since results may be indeterminate
         if (sp == Kind.OLD && cp == Kind.OLD)
             return true;
         // skip if sp or cp is NEW but the other is not OLD
         if ((sp == Kind.NEW && cp != Kind.OLD) || (cp == Kind.NEW && sp != Kind.OLD))
             return true;
         // only use GEN if no other package-info files present
         if (sp == Kind.GEN && !(cl == Kind.NONE && cp == Kind.NONE) ||
             cp == Kind.GEN && !(cl == Kind.NONE && sp == Kind.NONE)) {
             return true;
         }
         // remaining combinations are valid
         return false;
     }
     /** Write a file with a given body. */
     File writeFile(String path, String body) throws Exception {
         File f = new File(path);
         if (f.getParentFile() != null)
             f.getParentFile().mkdirs();
         Writer out = new FileWriter(path);
         try {
             out.write(body);
         } finally {
             out.close();
         }
         return f;
     }
     /** Write a file with a given body, ensuring that the file is newer than a reference file. */
     File writeFile(String path, String body, File ref) throws Exception {
         for (int i = 0; i < 5; i++) {
             File f = writeFile(path, body);
             if (f.lastModified() > ref.lastModified())
                 return f;
             Thread.sleep(2000);
         }
         throw new Exception("cannot create file " + path + " newer than " + ref);
     }
     /** Compile a file to a given directory, with options provided. */
     void compile(File dir, String[] opts, File src) throws Exception {
         dir.mkdirs();
         List<String> opts2 = new ArrayList<String>();
         opts2.addAll(Arrays.asList("-d", dir.getPath()));
         opts2.addAll(Arrays.asList(opts));
         compile(opts2, Collections.singletonList(src));
     }
     /** Compile files with options provided. */
     void compile(List<String> opts, List<File> files) throws Exception {
         System.err.println("javac: " + opts + " " + files);
         List<String> args = new ArrayList<String>();
         args.addAll(opts);
         for (File f: files)
             args.add(f.getPath());
         StringWriter sw = new StringWriter();
         PrintWriter pw = new PrintWriter(sw);
         int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
         pw.flush();
         if (sw.getBuffer().length() > 0)
             System.err.println(sw.toString());
         if (rc != 0)
             throw new Exception("compilation failed: rc=" + rc);
     }
     /** Report an error. */
     void error(String msg) {
         System.err.println("Error: " + msg);
         errors++;
     }
     /** Test case counter. */
     int count;
     /** Number of errors found. */
     int errors;
     /** Optional set of test cases to be run; empty implies all test cases. */
     Set<Integer> tests = new HashSet<Integer>();
     /*  Files created by setup. */
     File test_java;
     File sp_old;
     File sp_new;
     File sp_gen;
     File cp_old;
     File cp_new;
     File cp_gen;
     File cl_pkgInfo_java;
     /** Annotation processor used to verify the expected value for the
         package annotations found by javac. */
     @SupportedOptions({ "gen", "expect" })
     public static class Processor extends JavacTestingAbstractProcessor {
         public boolean process(Set<? extends TypeElement> annots, RoundEnvironment renv) {
             round++;
             System.err.println("Round " + round + " annots:" + annots + " rootElems:" + renv.getRootElements());
             // if this is the first round and the gen option is given, use the filer to create
             // a copy of the file specified by the gen option.
             String gen = getOption("gen");
             if (round == 1 && gen != null) {
                 try {
                     Filer filer = processingEnv.getFiler();
                     JavaFileObject f;
                     if (gen.endsWith(".java"))
                         f = filer.createSourceFile("p.package-info");
                     else
                         f = filer.createClassFile("p.package-info");
                     System.err.println("copy " + gen + " to " + f.getName());
                     write(f, read(new File(gen)));
                 } catch (IOException e) {
                     error("Cannot create package-info file: " + e);
                 }
             }
             // if annotation processing is complete, verify the package annotation
             // found by the compiler.
             if (renv.processingOver()) {
                 System.err.println("final round");
                 Elements eu = processingEnv.getElementUtils();
                 TypeElement te = eu.getTypeElement("p.Test");
                 PackageElement pe = eu.getPackageOf(te);
                 System.err.println("final: te:" + te + " pe:" + pe);
                 List<? extends AnnotationMirror> annos = pe.getAnnotationMirrors();
                 System.err.println("final: annos:" + annos);
                 if (annos.size() == 1) {
                     String expect = "@" + te + "(\"" + getOption("expect") + "\")";
                     String actual = annos.get(0).toString();
                     checkEqual("package annotations", actual, expect);
                 } else {
                     error("Wrong number of annotations found: (" + annos.size() + ") " + annos);
                 }
             }
             return true;
         }
         /** Get an option given to the annotation processor. */
         String getOption(String name) {
             return processingEnv.getOptions().get(name);
         }
         /** Read a file. */
         byte[] read(File file) {
             byte[] bytes = new byte[(int) file.length()];
             DataInputStream in = null;
             try {
                 in = new DataInputStream(new FileInputStream(file));
                 in.readFully(bytes);
             } catch (IOException e) {
                 error("Error reading file: " + e);
             } finally {
                 if (in != null) {
                     try {
                         in.close();
                     } catch (IOException e) {
                         error("Error closing file: " + e);
                     }
                 }
             }
             return  bytes;
         }
         /** Write a file. */
         void write(JavaFileObject file, byte[] bytes) {
             OutputStream out = null;
             try {
                 out = file.openOutputStream();
                 out.write(bytes, 0, bytes.length);
             } catch (IOException e) {
                 error("Error writing file: " + e);
             } finally {
                 if (out != null) {
                     try {
                         out.close();
                     } catch (IOException e) {
                         error("Error closing file: " + e);
                     }
                 }
             }
         }
         /** Check two strings are equal, and report an error if they are not. */
         private void checkEqual(String label, String actual, String expect) {
             if (!actual.equals(expect)) {
                 error("Unexpected value for " + label + "; actual=" + actual + ", expected=" + expect);
             }
         }
         /** Report an error to the annotation processing system. */
         void error(String msg) {
             Messager messager = processingEnv.getMessager();
             messager.printMessage(Diagnostic.Kind.ERROR, msg);
         }
         int round;
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/processing/T6920317.java@2eb010b6cb22 (annotated)

test/tools/javac/processing/T6920317.java