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

 /*

  * Copyright (c) 2009, 2011 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 6877206

  * @summary JavaFileObject.toUri returns bogus URI (win)

  */

 import java.io.*;

 import java.net.*;

 import java.util.*;

 import java.util.jar.*;

 import java.util.zip.*;

 import javax.tools.*;

 import com.sun.tools.javac.file.JavacFileManager;

 import com.sun.tools.javac.util.Context;

 import com.sun.tools.javac.util.Options;

 // Test URIs returned from JavacFileManager and its support classes.

 // For a variety of file objects, verify the validity of FileObject.toUri()

 // by verifying the URI exists and points to the same contents as the file

 // object itself

 public class T6877206 {

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

         new T6877206().run();

     }

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

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

     void run() throws Exception {

         File rt_jar = findRtJar();

         // names for entries to be created in directories and jar files

         String[] entries = { "p/A.class", "p/resources/A-1.jpg" };

         // test various combinations of directories and jar files, intended to

         // cover all sources of URIs within JavacFileManager's support classes

         test(createFileManager(), createDir("dir", entries), "p", entries.length);

         test(createFileManager(), createDir("a b/dir", entries), "p", entries.length);

         for (boolean useOptimizedZip: new boolean[] { false, true }) {

             test(createFileManager(useOptimizedZip), createJar("jar", entries), "p", entries.length);

             test(createFileManager(useOptimizedZip), createJar("jar jar", entries), "p", entries.length);

             for (boolean useSymbolFile: new boolean[] { false, true }) {

                 test(createFileManager(useOptimizedZip, useSymbolFile), rt_jar, "java.lang.ref", -1);

             }

         }

         // Verify that we hit all the impl classes we intended

         checkCoverage("classes", foundClasses,

                 "RegularFileObject", "SymbolFileObject", "ZipFileIndexFileObject", "ZipFileObject");

         // Verify that we hit the jar files we intended, specifically ct.sym as well as rt.jar

         checkCoverage("jar files", foundJars,

                 "ct.sym", "jar", "jar jar", "rt.jar");

     }

     // use a new file manager for each test

     void test(StandardJavaFileManager fm, File f, String pkg, int expect) throws Exception {

         JarURLConnection c;

         System.err.println("Test " + f);

         try {

             fm.setLocation(StandardLocation.CLASS_PATH, Collections.singleton(f));

             int count = 0;

             for (JavaFileObject fo: fm.list(StandardLocation.CLASS_PATH,

                     pkg, EnumSet.allOf(JavaFileObject.Kind.class), true)) {

                 System.err.println("checking " + fo);

                 // record the file object class name for coverage checks later

                 foundClasses.add(fo.getClass().getSimpleName());

                 testFileObject(fo);

                 count++;

             }

             if (expect > 0 && count != expect)

                 throw new Exception("wrong number of entries found: "

                         + count + ", expected " + expect);

         } finally {

             fm.close();

         }

     }

     void testFileObject(JavaFileObject fo) throws Exception {

         // test the validity of the result of toUri() by using URLConnection

         // and comparing the results of reading from the connection with the

         // result of reading from the file object directly.

         URI uri = fo.toUri();

         System.err.println("uri: " + uri);

         URLConnection urlconn = uri.toURL().openConnection();

         if (urlconn instanceof JarURLConnection) {

             JarURLConnection jarconn = (JarURLConnection) urlconn;

             File f = new File(jarconn.getJarFile().getName());

             // record access to the jar file for coverage checks later

             foundJars.add(f.getName());

         }

         try {

             byte[] uriData = read(urlconn.getInputStream());

             byte[] foData = read(fo.openInputStream());

             if (!Arrays.equals(uriData, foData)) {

                 if (uriData.length != foData.length)

                     throw new Exception("data size differs: uri data "

                             + uriData.length + " bytes, fo data " + foData.length+ " bytes");

                 for (int i = 0; i < uriData.length; i++) {

                     if (uriData[i] != foData[i])

                     throw new Exception("unexpected data returned at offset " + i

                             + ", uri data " + uriData[i] + ", fo data " + foData[i]);

                 }

                 throw new AssertionError("cannot find difference");

             }

         } finally {

             // In principle, simply closing the result of urlconn.getInputStream()

             // should have been sufficient. But the internal JarURLConnection

             // does not close the JarFile in an expeditious manner, thus preventing

             // jtreg from deleting the jar file before starting the next test.

             // Therefore we force access to the JarURLConnection to close the

             // JarFile when necessary.

             if (urlconn instanceof JarURLConnection) {

                 JarURLConnection jarconn = (JarURLConnection) urlconn;

                 jarconn.getJarFile().close();

             }

         }

     }

     void checkCoverage(String label, Set<String> found, String... expect) throws Exception {

         Set<String> e = new TreeSet<String>(Arrays.asList(expect));

         if (!found.equals(e)) {

             e.removeAll(found);

             throw new Exception("expected " + label + " not used: " + e);

         }

     }

     JavacFileManager createFileManager() {

         return createFileManager(false, false);

     }

     JavacFileManager createFileManager(boolean useOptimizedZip) {

         return createFileManager(useOptimizedZip, false);

     }

     JavacFileManager createFileManager(boolean useOptimizedZip, boolean useSymbolFile) {

         Context ctx = new Context();

         Options options = Options.instance(ctx);

         if (useOptimizedZip) {

             options.put("useOptimizedZip", "true");

         }

         if (!useSymbolFile) {

             options.put("ignore.symbol.file", "true");

         }

         return new JavacFileManager(ctx, false, null);

     }

     File createDir(String name, String... entries) throws Exception {

         File dir = new File(name);

         if (!dir.mkdirs())

             throw new Exception("cannot create directories " + dir);

         for (String e: entries) {

             writeFile(new File(dir, e), e);

         }

         return dir;

     }

     File createJar(String name, String... entries) throws IOException {

         File jar = new File(name);

         OutputStream out = new FileOutputStream(jar);

         try {

             JarOutputStream jos = new JarOutputStream(out);

             for (String e: entries) {

                 jos.putNextEntry(new ZipEntry(e));

                 jos.write(e.getBytes());

             }

             jos.close();

         } finally {

             out.close();

         }

         return jar;

     }

     File findRtJar() throws Exception {

         File java_home = new File(System.getProperty("java.home"));

         if (java_home.getName().equals("jre"))

             java_home = java_home.getParentFile();

         File rt_jar = new File(new File(new File(java_home, "jre"), "lib"), "rt.jar");

         if (!rt_jar.exists())

             throw new Exception("can't find rt.jar");

         return rt_jar;

     }

     byte[] read(InputStream in) throws IOException {

         byte[] data = new byte[1024];

         int offset = 0;

         try {

             int n;

             while ((n = in.read(data, offset, data.length - offset)) != -1) {

                 offset += n;

                 if (offset == data.length)

                     data = Arrays.copyOf(data, 2 * data.length);

             }

         } finally {

             in.close();

         }

         return Arrays.copyOf(data, offset);

     }

     void writeFile(File f, String s) throws IOException {

         f.getParentFile().mkdirs();

         FileWriter out = new FileWriter(f);

         try {

             out.write(s);

         } finally {

             out.close();

         }

     }

 }