Examples with FileVisitResult java.nio.file.FileVisitResult used on opensource projects

Example 71 with FileVisitResult

use of java.nio.file.FileVisitResult in project cdap by caskdata.

the class BundleJarUtil method addToArchive.

/**
   * Adds file(s) to a zip archive. If the given input file is a directory,
   * all files under it will be added recursively.
   *
   * @param input input directory (or file) whose contents needs to be archived
   * @param output an opened {@link ZipOutputStream} for the archive content to add to
   * @throws IOException if there is failure in the archive creation
   */
public static void addToArchive(File input, final ZipOutputStream output) throws IOException {
    final URI baseURI = input.toURI();
    Files.walkFileTree(input.toPath(), EnumSet.of(FileVisitOption.FOLLOW_LINKS), Integer.MAX_VALUE, new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            URI uri = baseURI.relativize(dir.toUri());
            if (!uri.getPath().isEmpty()) {
                output.putNextEntry(new ZipEntry(uri.getPath()));
                output.closeEntry();
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            URI uri = baseURI.relativize(file.toUri());
            if (uri.getPath().isEmpty()) {
                // Only happen if the given "input" is a file.
                output.putNextEntry(new ZipEntry(file.toFile().getName()));
            } else {
                output.putNextEntry(new ZipEntry(uri.getPath()));
            }
            Files.copy(file, output);
            output.closeEntry();
            return FileVisitResult.CONTINUE;
        }
    });
}

Example 72 with FileVisitResult

use of java.nio.file.FileVisitResult in project bndtools by bndtools.

the class ImportBndWorkspaceWizard method deleteOldProjectFiles.

private void deleteOldProjectFiles(final Path projectPath) throws IOException {
    final Path settings = projectPath.resolve(".settings");
    if (Files.exists(settings)) {
        Files.walkFileTree(settings, new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                Files.delete(file);
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
                Files.delete(dir);
                return FileVisitResult.CONTINUE;
            }
        });
    }
    final Path project = projectPath.resolve(".project");
    Files.deleteIfExists(project);
    final Path classpath = projectPath.resolve(".classpath");
    Files.deleteIfExists(classpath);
}

Example 73 with FileVisitResult

use of java.nio.file.FileVisitResult in project ceylon-compiler by ceylon.

the class JavacPathFileManager method list.

private void list(Path path, String packageName, final Set<Kind> kinds, boolean recurse, final ListBuffer<JavaFileObject> results) throws IOException {
    if (!Files.exists(path))
        return;
    final Path pathDir;
    if (isDirectory(path))
        pathDir = path;
    else {
        FileSystem fs = getFileSystem(path);
        if (fs == null)
            return;
        pathDir = fs.getRootDirectories().iterator().next();
    }
    String sep = path.getFileSystem().getSeparator();
    Path packageDir = packageName.isEmpty() ? pathDir : pathDir.resolve(packageName.replace(".", sep));
    if (!Files.exists(packageDir))
        return;
    /* Alternate impl of list, superceded by use of Files.walkFileTree */
    //        Deque<Path> queue = new LinkedList<Path>();
    //        queue.add(packageDir);
    //
    //        Path dir;
    //        while ((dir = queue.poll()) != null) {
    //            DirectoryStream<Path> ds = dir.newDirectoryStream();
    //            try {
    //                for (Path p: ds) {
    //                    String name = p.getFileName().toString();
    //                    if (isDirectory(p)) {
    //                        if (recurse && SourceVersion.isIdentifier(name)) {
    //                            queue.add(p);
    //                        }
    //                    } else {
    //                        if (kinds.contains(getKind(name))) {
    //                            JavaFileObject fe =
    //                                PathFileObject.createDirectoryPathFileObject(this, p, pathDir);
    //                            results.append(fe);
    //                        }
    //                    }
    //                }
    //            } finally {
    //                ds.close();
    //            }
    //        }
    int maxDepth = (recurse ? Integer.MAX_VALUE : 1);
    Set<FileVisitOption> opts = EnumSet.of(FOLLOW_LINKS);
    Files.walkFileTree(packageDir, opts, maxDepth, new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
            Path name = dir.getFileName();
            if (// JSR 292?
            name == null || SourceVersion.isIdentifier(name.toString()))
                return FileVisitResult.CONTINUE;
            else
                return FileVisitResult.SKIP_SUBTREE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
            if (attrs.isRegularFile() && kinds.contains(getKind(file.getFileName().toString()))) {
                JavaFileObject fe = PathFileObject.createDirectoryPathFileObject(JavacPathFileManager.this, file, pathDir);
                results.append(fe);
            }
            return FileVisitResult.CONTINUE;
        }
    });
}

Example 74 with FileVisitResult

use of java.nio.file.FileVisitResult in project ceylon-compiler by ceylon.

the class CeylonDocToolTests method makeCarFromClassFiles.

private void makeCarFromClassFiles(File dir, String[] fileNames, String module, String version) throws IOException {
    String modulePath = module.replace('.', '/') + "/";
    final Path dirPath = dir.toPath();
    File classFolder = new File(dir, modulePath);
    File jarFolder = new File(dir, modulePath + version);
    jarFolder.mkdirs();
    File jarFile = new File(jarFolder, module + "-" + version + ".car");
    // now jar it up
    JarOutputStream outputStream = new JarOutputStream(new FileOutputStream(jarFile));
    final List<String> files = new LinkedList<String>();
    final Path classPath = classFolder.toPath();
    // collect all class files
    Files.walkFileTree(classPath, new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult visitFile(Path path, BasicFileAttributes attr) throws IOException {
            if (path.toString().endsWith(".class")) {
                files.add(dirPath.relativize(path).toString());
            }
            return FileVisitResult.CONTINUE;
        }
    });
    for (String classFile : files) {
        ZipEntry entry = new ZipEntry(classFile);
        outputStream.putNextEntry(entry);
        File javaFile = new File(dir, classFile);
        FileInputStream inputStream = new FileInputStream(javaFile);
        com.redhat.ceylon.compiler.java.util.Util.copy(inputStream, outputStream);
        inputStream.close();
        outputStream.flush();
    }
    outputStream.close();
}