Example usage for java.nio.file Files walkFileTree

Introduction

In this page you can find the example usage for java.nio.file Files walkFileTree.

Prototype

public static Path walkFileTree(Path start, FileVisitor<? super Path> visitor) throws IOException

Source Link

Document

Walks a file tree.

Usage

From source file:com.yahoo.rdl.maven.RdlFileFinderImpl.java

@Override
public List<Path> findRdlFiles() throws MojoExecutionException, MojoFailureException {
    List<Path> rdlFiles = new ArrayList<Path>();
    try {//from ww w  .ja  v a2  s .  com
        Files.walkFileTree(rdlDirectory, new SimpleFileVisitor<Path>() {
            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                if (FilenameUtils.isExtension(file.toString(), "rdl")) {
                    rdlFiles.add(file);
                }
                return super.visitFile(file, attrs);
            }
        });
    } catch (IOException e) {
        throw new MojoExecutionException("Error walking " + rdlDirectory.toAbsolutePath(), e);
    }
    if (rdlFiles.isEmpty()) {
        throw new MojoFailureException("No files ending in .rdl were found in the directory "
                + rdlDirectory.toAbsolutePath()
                + ". Assign <rdlDirectory> in the configuration of rdl-maven-plugin to a folder containing your rdl files.");
    }
    return rdlFiles;
}

From source file:file.FileOperatorTest.java

public static List<Path> testWalkFile() throws Exception {
    List<Path> paths = Lists.newArrayList();
    long a = System.currentTimeMillis();
    Files.walkFileTree(Paths.get(ROOT_DIR), new FileVisitor<Path>() {
        @Override/*from w  w  w.j  a  v a  2 s  .  com*/
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            return FileVisitResult.CONTINUE;
        }

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

        @Override
        public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
            return FileVisitResult.CONTINUE;
        }
    });
    long b = System.currentTimeMillis();
    System.out.println(":" + (b - a));
    return paths;
}

From source file:FileMangement.PathFinder.java

@SuppressWarnings("empty-statement")
public Path[] FileCreator(String filename, boolean m3uCheck) throws IOException {

    File paths = new File(filename);
    String[] pattern;/*from   ww w  . ja v a2  s  .  c  o m*/

    if (m3uCheck != true) {
        pattern = patternCreator.patternCreator(true, false, false, false, 1);
    } else {
        pattern = new String[1];
        pattern[0] = "*.m3u";
    }

    String str = paths.toString();
    String slash = "\\";

    String s = new StringBuilder(str).append(slash).toString();
    Path startingDir = Paths.get(s);

    int i = 0;
    while (i < pattern.length) {
        Finder finder = new Finder(pattern[i]);
        Files.walkFileTree(startingDir, finder);

        listOfPaths = ArrayUtils.addAll(listOfPaths, NullCleaner(finder.returnArray()));
        finalTotal = finder.done(finalTotal);
        i++;
    }

    //    StringBuffer sb = new StringBuffer(listOfPaths[1].getFileName().toString());
    //  sb.delete(sb.length()-4,sb.length()) ;

    //  System.out.println(sb);

    //  System.out.println(Arrays.toString(listOfPaths));

    //   System.out.println("Total Matched Number of Files : " + finalTotal);

    return listOfPaths;
}

From source file:jobs.ExportDatabaseToFilesystem.java

public void doJob() throws Exception {
    Path p = PathService.getRootImageDirectory();
    Files.walkFileTree(p, new SimpleFileVisitor<Path>() {
        @Override/*from   ww  w  .j a  v a  2 s .  c o m*/
        public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException {
            if (PathService.isImage(path)) {
                DatabaseImage dbi = DatabaseImage.forPath(path);
                ImportExportService.exportData(dbi);
            }
            return FileVisitResult.CONTINUE;
        }
    });
}

From source file:org.apdplat.superword.extract.PhraseExtractor.java

public static Set<String> parseDir(String dir) {
    Set<String> data = new HashSet<>();
    LOGGER.info("?" + dir);
    try {/*w  w w.  j  a  v a  2  s .  com*/
        Files.walkFileTree(Paths.get(dir), new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                data.addAll(parseFile(file.toFile().getAbsolutePath()));
                return FileVisitResult.CONTINUE;
            }

        });
    } catch (IOException e) {
        LOGGER.error("?", e);
    }
    return data;
}

From source file:com.twitter.heron.apiserver.utils.FileHelper.java

public static boolean copyDirectory(Path from, Path to) {
    try {//w  w  w . java  2  s . c om
        Files.walkFileTree(from, new CopyDirectoryVisitor(from, to));
    } catch (IOException ioe) {
        LOG.error("Failed to copy directory from {} to {}", from, to, ioe);
        return false;
    }
    return true;
}

From source file:ch.bender.evacuate.Helper.java

/**
 * Deletes a whole directory (recursively)
 * <p>//w  w  w.  j  av a  2 s  . co m
 * @param aDir
 *        a folder to be deleted (must not be null)
 * @throws IOException
 */
public static void deleteDirRecursive(Path aDir) throws IOException {
    if (aDir == null) {
        throw new IllegalArgumentException("aDir must not be null");
    }

    if (Files.notExists(aDir)) {
        return;
    }

    if (!Files.isDirectory(aDir)) {
        throw new IllegalArgumentException("given aDir is not a directory");
    }

    Files.walkFileTree(aDir, new SimpleFileVisitor<Path>() {
        /**
         * @see java.nio.file.SimpleFileVisitor#visitFileFailed(java.lang.Object, java.io.IOException)
         */
        @Override
        public FileVisitResult visitFileFailed(Path aFile, IOException aExc) throws IOException {
            if ("System Volume Information".equals((aFile.getFileName().toString()))) {
                return FileVisitResult.SKIP_SUBTREE;
            }

            throw aExc;
        }

        /**
         * @see java.nio.file.SimpleFileVisitor#preVisitDirectory(java.lang.Object, java.nio.file.attribute.BasicFileAttributes)
         */
        @Override
        public FileVisitResult preVisitDirectory(Path aFile, BasicFileAttributes aAttrs) throws IOException {
            if ("System Volume Information".equals((aFile.getFileName()))) {
                return FileVisitResult.SKIP_SUBTREE;
            }

            return FileVisitResult.CONTINUE;
        }

        @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 {
            if (dir.isAbsolute() && dir.getRoot().equals(dir)) {
                myLog.debug("root cannot be deleted: " + dir.toString());
                return FileVisitResult.CONTINUE;
            }

            Files.delete(dir);
            return FileVisitResult.CONTINUE;
        }

    });
}

From source file:io.logspace.hq.core.impl.SpacesConfiguration.java

@Bean
public Spaces createSpaces() throws IOException {
    Path path = Paths.get(this.dataDirectory, "spaces");
    this.logger.info("Using '{}' as spaces directory.", path.toAbsolutePath());

    SpaceTokensFileVisitor visitor = new SpaceTokensFileVisitor();
    Files.walkFileTree(path, visitor);

    SpacesImpl spaces = new SpacesImpl();
    spaces.setSpaceTokens(visitor.getSpaceTokens());
    return spaces;
}

From source file:org.apdplat.superword.extract.DefinitionExtractor.java

public static Set<Word> parseDir(String dir) {
    Set<Word> data = new HashSet<>();
    LOGGER.info("?" + dir);
    try {//from  w w  w  .  j a v  a  2  s  .c om
        Files.walkFileTree(Paths.get(dir), new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                data.addAll(parseFile(file.toFile().getAbsolutePath()));
                return FileVisitResult.CONTINUE;
            }

        });
    } catch (IOException e) {
        LOGGER.error("?", e);
    }
    return data;
}

From source file:org.sonar.runner.api.Utils.java

static void deleteQuietly(File f) {
    try {/* w  w w. j  ava  2  s  .  c  om*/
        Files.walkFileTree(f.toPath(), new DeleteQuietlyFileVisitor());
    } catch (IOException e) {
        // ignore
    }
}