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:org.jboss.as.test.integration.logging.handlers.SocketHandlerTestCase.java

@AfterClass
public static void tearDown() throws Exception {
    undeploy(DEPLOYMENT_NAME);/*  w w  w  .j ava  2 s.com*/
    // Clear the temporary directory and delete it
    Files.walkFileTree(TEMP_DIR, new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
            Files.delete(file);
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult postVisitDirectory(final Path dir, final IOException exc) throws IOException {
            Files.delete(dir);
            return FileVisitResult.CONTINUE;
        }
    });
    Files.deleteIfExists(TEMP_DIR);
}

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From source file:org.talend.dataprep.dataset.store.content.file.LocalFileContentStore.java

@Override
public void clear() {
    try {//from  w  w  w . ja  v  a 2  s  .c  o m
        Path path = FileSystems.getDefault().getPath(storeLocation);
        if (!path.toFile().exists()) {
            return;
        }

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

            @Override
            public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
                // .nfs files are handled by the OS and can be deleted after the visitor started.
                // Exceptions on such files can be safely ignored
                if (file.getFileName().toFile().getName().startsWith(".nfs")) { //$NON-NLS-1$
                    LOGGER.warn("unable to delete {}", file.getFileName(), exc);
                    return FileVisitResult.CONTINUE;
                }
                throw exc;
            }

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attributes) throws IOException {
                // Skip NFS file content
                if (!file.getFileName().toFile().getName().startsWith(".nfs")) { //$NON-NLS-1$
                    Files.delete(file);
                }
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException e) throws IOException {
                if (e == null) {
                    return FileVisitResult.CONTINUE;
                } else {
                    // directory iteration failed
                    throw e;
                }
            }
        });
    } catch (IOException e) {
        LOGGER.error("Unable to clear local data set content.", e);
        throw new TDPException(DataSetErrorCodes.UNABLE_TO_CLEAR_DATASETS, e);
    }
}

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From source file:org.zaproxy.admin.VerifyCoreZapVersionsEntries.java

private static void readZapVersionsFiles() throws Exception {
    Optional<String> path = Arrays.stream(System.getProperty("java.class.path").split(File.pathSeparator))
            .filter(e -> e.endsWith("/ZapVersionsTests")).findFirst();
    assertThat(path).as("The ZapVersionsTests directory was not found on the classpath.").isPresent();

    zapVersionsfiles = new ArrayList<>();
    Files.walkFileTree(Paths.get(path.get()), new SimpleFileVisitor<Path>() {

        @Override/*from   ww w . j a  v a  2s. c o m*/
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
            String fileName = file.getFileName().toString();
            if (fileName.startsWith("ZapVersions") && fileName.endsWith(".xml")) {
                zapVersionsfiles.add(file);
            }
            return FileVisitResult.CONTINUE;
        }
    });

    Collections.sort(zapVersionsfiles);
}

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From source file:net.librec.data.convertor.appender.SocialDataAppender.java

/**
 * Read data from the data file. Note that we didn't take care of the
 * duplicated lines.// w  w  w  .ja  va 2s.  com
 *
 * @param inputDataPath
 *            the path of the data file
 * @throws IOException if I/O error occurs during reading
 */
private void readData(String inputDataPath) throws IOException {
    // Table {row-id, col-id, rate}
    Table<Integer, Integer, Double> dataTable = HashBasedTable.create();
    // Map {col-id, multiple row-id}: used to fast build a rating matrix
    Multimap<Integer, Integer> colMap = HashMultimap.create();
    // BiMap {raw id, inner id} userIds, itemIds
    final List<File> files = new ArrayList<File>();
    final ArrayList<Long> fileSizeList = new ArrayList<Long>();
    SimpleFileVisitor<Path> finder = new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            fileSizeList.add(file.toFile().length());
            files.add(file.toFile());
            return super.visitFile(file, attrs);
        }
    };
    Files.walkFileTree(Paths.get(inputDataPath), finder);
    long allFileSize = 0;
    for (Long everyFileSize : fileSizeList) {
        allFileSize = allFileSize + everyFileSize.longValue();
    }
    // loop every dataFile collecting from walkFileTree
    for (File dataFile : files) {
        FileInputStream fis = new FileInputStream(dataFile);
        FileChannel fileRead = fis.getChannel();
        ByteBuffer buffer = ByteBuffer.allocate(BSIZE);
        int len;
        String bufferLine = new String();
        byte[] bytes = new byte[BSIZE];
        while ((len = fileRead.read(buffer)) != -1) {
            buffer.flip();
            buffer.get(bytes, 0, len);
            bufferLine = bufferLine.concat(new String(bytes, 0, len)).replaceAll("\r", "\n");
            String[] bufferData = bufferLine.split("(\n)+");
            boolean isComplete = bufferLine.endsWith("\n");
            int loopLength = isComplete ? bufferData.length : bufferData.length - 1;
            for (int i = 0; i < loopLength; i++) {
                String line = new String(bufferData[i]);
                String[] data = line.trim().split("[ \t,]+");
                String userA = data[0];
                String userB = data[1];
                Double rate = (data.length >= 3) ? Double.valueOf(data[2]) : 1.0;
                if (userIds.containsKey(userA) && userIds.containsKey(userB)) {
                    int row = userIds.get(userA);
                    int col = userIds.get(userB);
                    dataTable.put(row, col, rate);
                    colMap.put(col, row);
                }
            }
            if (!isComplete) {
                bufferLine = bufferData[bufferData.length - 1];
            }
            buffer.clear();
        }
        fileRead.close();
        fis.close();
    }
    int numRows = userIds.size(), numCols = userIds.size();
    // build rating matrix
    userSocialMatrix = new SparseMatrix(numRows, numCols, dataTable, colMap);
    // release memory of data table
    dataTable = null;
}

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From source file:org.sonarsource.commandlinezip.ZipUtils7.java

public static void fastZip(final Path srcDir, Path zip) throws IOException {
    try (final OutputStream out = FileUtils.openOutputStream(zip.toFile());
            final ZipOutputStream zout = new ZipOutputStream(out)) {
        zout.setMethod(ZipOutputStream.STORED);
        Files.walkFileTree(srcDir, new SimpleFileVisitor<Path>() {
            @Override//from w w  w .j  ava2 s .c  om
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                try (InputStream in = new BufferedInputStream(new FileInputStream(file.toFile()))) {
                    String entryName = srcDir.relativize(file).toString();
                    ZipEntry entry = new ZipEntry(entryName);
                    zout.putNextEntry(entry);
                    IOUtils.copy(in, zout);
                    zout.closeEntry();
                }
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
                if (dir.equals(srcDir)) {
                    return FileVisitResult.CONTINUE;
                }

                String entryName = srcDir.relativize(dir).toString();
                ZipEntry entry = new ZipEntry(entryName);
                zout.putNextEntry(entry);
                zout.closeEntry();
                return FileVisitResult.CONTINUE;
            }
        });
    }
}

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From source file:org.phenotips.variantstore.shared.ResourceManager.java

/**
 * Copy resources recursively from a path on the filesystem to the destination folder.
 *
 * @param source/*from   w w w . j  a  v  a  2  s. c  o m*/
 * @param dest
 * @throws IOException
 */
private static void copyResourcesFromFilesystem(final Path source, final Path dest) throws IOException {
    Files.walkFileTree(source, new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            Path relative = source.relativize(file);
            Files.copy(file, dest.resolve(relative));
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            Path relative = source.relativize(dir);
            Files.createDirectory(dest.resolve(relative));
            return FileVisitResult.CONTINUE;
        }
    });
}

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From source file:services.ImportExportService.java

public static void importDirectoryRecursive(final Project project, Path root) throws IOException {
    Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
        @Override/*from   ww  w  .  j av  a2 s. c  om*/
        public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException {
            if (PathService.isImage(path)) {
                DatabaseImage image = DatabaseImage.forPath(path);
                if (!image.imported && hasFileToImport(image))
                    importData(project, image);
            }
            return FileVisitResult.CONTINUE;
        }
    });
}

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From source file:edu.cornell.mannlib.vitro.webapp.freemarker.loader.FreemarkerTemplateLoader.java

private SortedSet<PathPieces> findAllMatches(PathPieces searchTerm) {
    PathPiecesFileVisitor visitor = new PathPiecesFileVisitor(searchTerm);
    try {//from  w  w w.j  a  v a2 s.com
        Files.walkFileTree(baseDir.toPath(), visitor);
    } catch (IOException e) {
        log.error(e);
    }
    return visitor.getMatches();
}

---

From source file:com.liferay.sync.engine.SyncSystemTest.java

protected static void cleanUp(long delay) throws Exception {
    for (long syncAccountId : _syncAccountIds.values()) {
        SyncAccount syncAccount = SyncAccountService.fetchSyncAccount(syncAccountId);

        if (syncAccount == null) {
            return;
        }/*from w w  w  .  j  av  a 2 s . com*/

        Files.walkFileTree(Paths.get(syncAccount.getFilePathName()), new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult postVisitDirectory(Path filePath, IOException ioe) throws IOException {

                Files.deleteIfExists(filePath);

                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult visitFile(Path filePath, BasicFileAttributes basicFileAttributes)
                    throws IOException {

                Files.deleteIfExists(filePath);

                return FileVisitResult.CONTINUE;
            }

        });
    }

    pause(delay);

    SyncEngine.stop();

    Files.walkFileTree(Paths.get(_rootFilePathName), new SimpleFileVisitor<Path>() {

        @Override
        public FileVisitResult postVisitDirectory(Path filePath, IOException ioe) throws IOException {

            Files.delete(filePath);

            return FileVisitResult.CONTINUE;
        }

    });

    for (long syncAccountId : _syncAccountIds.values()) {
        SyncAccount syncAccount = SyncAccountService.fetchSyncAccount(syncAccountId);

        SyncSystemTestUtil.deleteUser(syncAccount.getUserId(), _syncAccount.getSyncAccountId());

        SyncAccountService.deleteSyncAccount(syncAccountId);
    }

    SyncAccountService.deleteSyncAccount(_syncAccount.getSyncAccountId());
}

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From source file:com.netflix.genie.web.services.impl.DiskJobFileServiceImpl.java

/**
 * {@inheritDoc}//from w  w  w .ja  v  a 2  s  . c o  m
 */
@Override
public Set<JobFileState> getJobDirectoryFileState(final String jobId, final boolean calculateMd5)
        throws IOException {
    log.debug("Getting job directory state for job {} {} MD5", jobId, calculateMd5 ? "with" : "without");
    // TODO: It's possible the system should lock this directory while reading for consistent state?
    final Path jobDirectory = this.jobsDirRoot.resolve(jobId);
    this.createOrCheckDirectory(jobDirectory);

    final Set<JobFileState> jobDirectoryFiles = Sets.newHashSet();
    Files.walkFileTree(jobDirectory, new FileStateVisitor(jobDirectory, calculateMd5, jobDirectoryFiles));

    return jobDirectoryFiles;
}

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