Example usage for java.nio.file SimpleFileVisitor SimpleFileVisitor

Introduction

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

Prototype

protected SimpleFileVisitor() 

Source Link

Document

Initializes a new instance of this class.

Usage

From source file:io.anserini.index.IndexWebCollection.java

static Deque<Path> discoverWarcFiles(Path p, final String suffix) {

    final Deque<Path> stack = new ArrayDeque<>();

    FileVisitor<Path> fv = new SimpleFileVisitor<Path>() {

        @Override//from   w  ww.  ja v a 2  s  . c o m
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {

            Path name = file.getFileName();
            if (name != null && name.toString().endsWith(suffix))
                stack.add(file);
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
            if ("OtherData".equals(dir.getFileName().toString())) {
                LOG.info("Skipping: " + dir);
                return FileVisitResult.SKIP_SUBTREE;
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFileFailed(Path file, IOException ioe) {
            LOG.error("Visiting failed for " + file.toString(), ioe);
            return FileVisitResult.SKIP_SUBTREE;
        }
    };

    try {
        Files.walkFileTree(p, fv);
    } catch (IOException e) {
        LOG.error("IOException during file visiting", e);
    }
    return stack;
}

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From source file:de.ncoder.studipsync.Syncer.java

public boolean isSeminarInSync(Seminar seminar) throws IOException, StudipException {
    if (!checkLevel.includes(CheckLevel.Count)) {
        return true;
    }//from ww w . ja  v  a2 s  .  c  o m

    //List downloads
    final List<Download> downloads;
    browserLock.lock();
    try {
        downloads = adapter.parseDownloads(PAGE_DOWNLOADS_LATEST, false);
    } finally {
        browserLock.unlock();
    }
    if (downloads.isEmpty()) {
        //No downloads - nothing to do
        return true;
    }

    //List local files
    final List<Path> localFiles = new LinkedList<>();
    final Path storagePath = storage.resolve(seminar);
    if (!Files.exists(storagePath)) {
        //No local files despite available downloads
        log.info(marker, "Seminar is empty!");
        return false;
    }
    Files.walkFileTree(storagePath, new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            localFiles.add(file);
            return FileVisitResult.CONTINUE;
        }
    });

    //Count local files
    if (localFiles.size() < downloads.size()) {
        // Missing files
        log.warn(marker, "Seminar has only " + localFiles.size() + " local file(s) of " + downloads.size()
                + " online file(s).");
        return false;
    } else {
        // Ignore surplus files
        log.debug(marker, "Seminar has deleted file(s) left! " + localFiles.size() + " local file(s) and "
                + downloads.size() + " online file(s).");
    }

    //Check local files
    if (!areFilesInSync(downloads, localFiles)) {
        return false;
    }

    return true;
}

---

From source file:org.commonjava.test.compile.CompilerFixture.java

public List<File> scan(final File directory, final String pattern) throws IOException {
    final PathMatcher matcher = FileSystems.getDefault()
            .getPathMatcher("glob:" + directory.getCanonicalPath() + "/" + pattern);

    final List<File> sources = new ArrayList<>();
    Files.walkFileTree(directory.toPath(), new SimpleFileVisitor<Path>() {

        @Override//from w  ww . j  a  v a 2  s . c om
        public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
            if (matcher.matches(file)) {
                sources.add(file.toFile());
            }

            return FileVisitResult.CONTINUE;
        }

    });

    return sources;
}

---

From source file:org.elasticsearch.plugins.PluginManagerIT.java

/** creates a plugin .zip and bad checksum file and returns the url for testing */
private String createPluginWithBadChecksum(final Path structure, String... properties) throws IOException {
    writeProperties(structure, properties);
    Path zip = createTempDir().resolve(structure.getFileName() + ".zip");
    try (ZipOutputStream stream = new ZipOutputStream(Files.newOutputStream(zip))) {
        Files.walkFileTree(structure, new SimpleFileVisitor<Path>() {
            @Override//  w w  w.  j  a  va  2  s .co m
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                stream.putNextEntry(new ZipEntry(structure.relativize(file).toString()));
                Files.copy(file, stream);
                return FileVisitResult.CONTINUE;
            }
        });
    }
    if (randomBoolean()) {
        writeSha1(zip, true);
    } else {
        writeMd5(zip, true);
    }
    return zip.toUri().toURL().toString();
}

---

From source file:org.fao.geonet.api.mapservers.GeoFile.java

/**
 * Returns the names of the raster layers (GeoTIFFs) in the geographic file.
 *
 * @return a collection of layer names//  w ww  .  j  a va2s  . c o m
 */
public Collection<String> getRasterLayers() throws IOException {
    final LinkedList<String> layers = new LinkedList<String>();
    if (zipFile != null) {
        for (Path path : zipFile.getRootDirectories()) {
            Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
                @Override
                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                    String fileName = file.getFileName().toString();
                    if (fileIsGeotif(fileName)) {
                        layers.add(getBase(fileName));
                    }
                    return FileVisitResult.CONTINUE;
                }
            });
        }
    } else {
        String fileName = file.getFileName().toString();
        if (fileIsGeotif(fileName)) {
            layers.add(getBase(fileName));
        }
    }
    return layers;
}

---

From source file:org.apache.tika.batch.fs.FSBatchTestBase.java

public static void deleteDirectory(Path dir) throws IOException {
    Files.walkFileTree(dir, new SimpleFileVisitor<Path>() {
        @Override/*w  ww  .ja  va 2  s  .  com*/
        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;
        }

    });
}

---

From source file:com.kegare.caveworld.util.CaveUtils.java

public static boolean archiveDirZip(final File dir, final File dest) {
    final Path dirPath = dir.toPath();
    final String parent = dir.getName();
    Map<String, String> env = Maps.newHashMap();
    env.put("create", "true");
    URI uri = dest.toURI();/*from   w  w  w  .  jav a  2 s. co m*/

    try {
        uri = new URI("jar:" + uri.getScheme(), uri.getPath(), null);
    } catch (Exception e) {
        return false;
    }

    try (FileSystem zipfs = FileSystems.newFileSystem(uri, env)) {
        Files.createDirectory(zipfs.getPath(parent));

        for (File file : dir.listFiles()) {
            if (file.isDirectory()) {
                Files.walkFileTree(file.toPath(), new SimpleFileVisitor<Path>() {
                    @Override
                    public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                        Files.copy(file, zipfs.getPath(parent, dirPath.relativize(file).toString()),
                                StandardCopyOption.REPLACE_EXISTING);

                        return FileVisitResult.CONTINUE;
                    }

                    @Override
                    public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
                            throws IOException {
                        Files.createDirectory(zipfs.getPath(parent, dirPath.relativize(dir).toString()));

                        return FileVisitResult.CONTINUE;
                    }
                });
            } else {
                Files.copy(file.toPath(), zipfs.getPath(parent, file.getName()),
                        StandardCopyOption.REPLACE_EXISTING);
            }
        }

        return true;
    } catch (Exception e) {
        e.printStackTrace();

        return false;
    }
}

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From source file:com.google.cloud.dataflow.sdk.io.TextIOTest.java

License:asdf

@AfterClass
public static void testdownClass() throws IOException {
    Files.walkFileTree(tempFolder, new SimpleFileVisitor<Path>() {
        @Override/*from  ww w  .  j a v a2 s  . c o  m*/
        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;
        }
    });
}

---

From source file:de.elomagic.carafile.client.CaraCloud.java

private List<Path> getLocalChangeList(final Path basePath, final long lastScanMillis) throws IOException {
    if (Files.notExists(basePath)) {
        return Collections.EMPTY_LIST;
    }/*  w ww . j ava  2 s .  c o m*/

    final List<Path> changedPathList = new ArrayList();

    Files.walkFileTree(basePath, new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            if (attrs.lastModifiedTime().toMillis() > lastScanMillis) {
                changedPathList.add(dir);
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            if (attrs.lastModifiedTime().toMillis() > lastScanMillis) {
                changedPathList.add(file);
            }
            return FileVisitResult.CONTINUE;
        }

    });

    return changedPathList;
}

---

From source file:net.gcolin.simplerepo.search.SearchController.java

public void rebuild() throws IOException {
    if (running) {
        return;/*from  w  ww .ja  v  a 2  s  . c  om*/
    }
    running = true;
    configManager.setCurrentAction(REBUILD + "initialize");
    nb = 0;
    try {
        final QueryRunner run = new QueryRunner();

        try {
            Connection connection = null;
            try {
                connection = datasource.getConnection();
                connection.setAutoCommit(false);
                run.update(connection, "delete from artifacttype");
                run.update(connection, "delete from artifactversion");
                run.update(connection, "delete from artifact");
                run.update(connection, "update artifactindex set artifact=1,version=1");
                connection.commit();
            } catch (SQLException ex) {
                connection.rollback();
                throw ex;
            } finally {
                DbUtils.close(connection);
            }
        } catch (SQLException ex) {
            logger.log(Level.SEVERE, null, ex);
            throw new IOException(ex);
        }
        for (final Repository repository : configManager.getConfiguration().getRepositories()) {
            File repo = new File(configManager.getRoot(), repository.getName());
            if (repo.exists()) {
                Files.walkFileTree(repo.toPath(), new SimpleFileVisitor<Path>() {
                    @Override
                    public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                        nb++;
                        if (nb % 20 == 0) {
                            configManager.setCurrentAction(REBUILD + " " + nb + " files");
                        }
                        if (file.toString().endsWith(".pom")) {
                            Model model = readPom(file.toFile());
                            add(repository, file.toFile(), model);
                        }
                        return FileVisitResult.CONTINUE;
                    }

                });
            }
        }
    } finally {
        running = false;
        configManager.setCurrentAction(null);
    }
}

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