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

 /*

  * Copyright (c) 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 8015912

  * @summary find API dependencies

  * @build m.Bar m.Foo m.Gee b.B c.C c.I d.D e.E f.F g.G

  * @run main APIDeps

  */

 import java.io.File;

 import java.io.IOException;

 import java.io.PrintWriter;

 import java.io.StringWriter;

 import java.nio.file.Path;

 import java.nio.file.Paths;

 import java.util.*;

 import java.util.regex.*;

 public class APIDeps {

     private static boolean symbolFileExist = initProfiles();

     private static boolean initProfiles() {

         // check if ct.sym exists; if not use the profiles.properties file

         Path home = Paths.get(System.getProperty("java.home"));

         if (home.endsWith("jre")) {

             home = home.getParent();

         }

         Path ctsym = home.resolve("lib").resolve("ct.sym");

         boolean symbolExists = ctsym.toFile().exists();

         if (!symbolExists) {

             Path testSrcProfiles =

                 Paths.get(System.getProperty("test.src", "."), "profiles.properties");

             if (!testSrcProfiles.toFile().exists())

                 throw new Error(testSrcProfiles + " does not exist");

             System.out.format("%s doesn't exist.%nUse %s to initialize profiles info%n",

                 ctsym, testSrcProfiles);

             System.setProperty("jdeps.profiles", testSrcProfiles.toString());

         }

         return symbolExists;

     }

     public static void main(String... args) throws Exception {

         int errors = 0;

         errors += new APIDeps().run();

         if (errors > 0)

             throw new Exception(errors + " errors found");

     }

     int run() throws IOException {

         File testDir = new File(System.getProperty("test.classes", "."));

         String testDirBasename = testDir.toPath().getFileName().toString();

         File mDir = new File(testDir, "m");

         // all dependencies

         test(new File(mDir, "Bar.class"),

              new String[] {"java.lang.Object", "java.lang.String",

                            "java.util.Set", "java.util.HashSet",

                            "java.lang.management.ManagementFactory",

                            "java.lang.management.RuntimeMXBean",

                            "b.B", "c.C", "d.D", "f.F", "g.G"},

              new String[] {"compact1", "compact3", testDirBasename},

              new String[] {"-classpath", testDir.getPath(), "-verbose", "-P"});

         test(new File(mDir, "Foo.class"),

              new String[] {"c.I", "e.E", "f.F", "m.Bar"},

              new String[] {testDirBasename},

              new String[] {"-classpath", testDir.getPath(), "-verbose", "-P"});

         test(new File(mDir, "Gee.class"),

              new String[] {"g.G", "sun.misc.Lock"},

              new String[] {testDirBasename, "JDK internal API"},

              new String[] {"-classpath", testDir.getPath(), "-verbose"});

         // parse only APIs

         test(mDir,

              new String[] {"java.lang.Object", "java.lang.String",

                            "java.util.Set",

                            "c.C", "d.D", "c.I", "e.E", "m.Bar"},

              new String[] {"compact1", testDirBasename, mDir.getName()},

              new String[] {"-classpath", testDir.getPath(), "-verbose", "-P", "-apionly"});

         return errors;

     }

     void test(File file, String[] expect, String[] profiles) {

         test(file, expect, profiles, new String[0]);

     }

     void test(File file, String[] expect, String[] profiles, String[] options) {

         List<String> args = new ArrayList<>(Arrays.asList(options));

         if (file != null) {

             args.add(file.getPath());

         }

         checkResult("api-dependencies", expect, profiles,

                     jdeps(args.toArray(new String[0])));

     }

     Map<String,String> jdeps(String... args) {

         StringWriter sw = new StringWriter();

         PrintWriter pw = new PrintWriter(sw);

         System.err.println("jdeps " + Arrays.toString(args));

         int rc = com.sun.tools.jdeps.Main.run(args, pw);

         pw.close();

         String out = sw.toString();

         if (!out.isEmpty())

             System.err.println(out);

         if (rc != 0)

             throw new Error("jdeps failed: rc=" + rc);

         return findDeps(out);

     }

     // Pattern used to parse lines

     private static Pattern linePattern = Pattern.compile(".*\r?\n");

     private static Pattern pattern = Pattern.compile("\\s+ -> (\\S+) +(.*)");

     // Use the linePattern to break the given String into lines, applying

     // the pattern to each line to see if we have a match

     private static Map<String,String> findDeps(String out) {

         Map<String,String> result = new HashMap<>();

         Matcher lm = linePattern.matcher(out);  // Line matcher

         Matcher pm = null;                      // Pattern matcher

         int lines = 0;

         while (lm.find()) {

             lines++;

             CharSequence cs = lm.group();       // The current line

             if (pm == null)

                 pm = pattern.matcher(cs);

             else

                 pm.reset(cs);

             if (pm.find())

                 result.put(pm.group(1), pm.group(2).trim());

             if (lm.end() == out.length())

                 break;

         }

         return result;

     }

     void checkResult(String label, String[] expect, Collection<String> found) {

         List<String> list = Arrays.asList(expect);

         if (!isEqual(list, found))

             error("Unexpected " + label + " found: '" + found + "', expected: '" + list + "'");

     }

     void checkResult(String label, String[] expect, String[] profiles, Map<String,String> result) {

         // check the dependencies

         checkResult(label, expect, result.keySet());

         // check profile information

         Set<String> values = new TreeSet<>();

         String internal = "JDK internal API";

         for (String s: result.values()) {

             if (s.startsWith(internal)){

                 values.add(internal);

             } else {

                 values.add(s);

             }

         }

         checkResult(label, profiles, values);

     }

     boolean isEqual(List<String> expected, Collection<String> found) {

         if (expected.size() != found.size())

             return false;

         List<String> list = new ArrayList<>(found);

         list.removeAll(expected);

         return list.isEmpty();

     }

     void error(String msg) {

         System.err.println("Error: " + msg);

         errors++;

     }

     int errors;

 }