Java Code Examples for java.nio.file.DirectoryStream#iterator()
The following examples show how to use
java.nio.file.DirectoryStream#iterator() .
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Example 1
Source File: SourcePath.java From helidon-build-tools with Apache License 2.0 | 6 votes |
private static List<SourcePath> doScan(File root, File dir) { List<SourcePath> sourcePaths = new ArrayList<>(); DirectoryStream<Path> dirStream = null; try { dirStream = Files.newDirectoryStream(dir.toPath()); Iterator<Path> it = dirStream.iterator(); while (it.hasNext()) { Path next = it.next(); if (Files.isDirectory(next)) { sourcePaths.addAll(doScan(root, next.toFile())); } else { sourcePaths.add(new SourcePath(root, next.toFile())); } } } catch (IOException ex) { if (dirStream != null) { try { dirStream.close(); } catch (IOException e) { } } } return sort(sourcePaths); }
Example 2
Source File: Version1to2.java From db with GNU Affero General Public License v3.0 | 6 votes |
private void upgradeData() { logger.info("Migrating data to new storage format"); long startTime = System.currentTimeMillis(); try { DirectoryStream<Path> ds = Files.newDirectoryStream(FileSystems.getDefault().getPath(BSql.OLD_BSQL_BASE_FOLDER)); Iterator<Path> iterator = ds.iterator(); while (iterator.hasNext()) { Path path = iterator.next(); if (Files.isDirectory(path)) { portApplication(path.getFileName().toString()); } } } catch (IOException ex) { java.util.logging.Logger.getLogger(Version1to2.class.getName()).log(Level.SEVERE, null, ex); } long elapsedTime = System.currentTimeMillis() - startTime; logger.info("Data migration to new storage format successfully completed in " + elapsedTime + "ms"); }
Example 3
Source File: TestDirectoryStream.java From jsr203-hadoop with Apache License 2.0 | 6 votes |
/** * According to Java documentation of NIO API, if we try to call * <code>next</code> on iterator of closed directory stream, there should be * an {@see NoSuchElementException} exception. * * @throws IOException * if we can't get the DirectoryStream */ @Test(expected = NoSuchElementException.class) public void testNextOnClosedDirectoryStreamIterator() throws IOException { Path dir = Paths.get(clusterUri); // create file Path file = dir.resolve("foo"); if (Files.exists(file)) { Files.delete(file); } Files.createFile(file); DirectoryStream<Path> stream = Files.newDirectoryStream(dir); Iterator<Path> it = stream.iterator(); stream.close(); Assert.assertFalse(it.hasNext()); // This one throws the exception it.next(); }
Example 4
Source File: ArchiveDirectoryStream.java From CloverETL-Engine with GNU Lesser General Public License v2.1 | 5 votes |
/** * */ protected ArchiveDirectoryStream(DirectoryStream<Input> parent, String glob) { this.parentStream = parent; this.parent = parent.iterator(); if (glob == null) { glob = ""; } this.glob = glob; boolean containsWildcard = (glob.contains("?") || glob.contains("*")); pattern = containsWildcard ? Pattern.compile(glob.replaceAll("\\\\", "\\\\\\\\").replaceAll("\\.", "\\\\.").replaceAll("\\?", "\\.").replaceAll("\\*", ".*")) : null; }
Example 5
Source File: SingularityExecutorCleanup.java From Singularity with Apache License 2.0 | 5 votes |
private Iterator<Path> getUncompressedLogrotatedFileIterator( SingularityExecutorTaskDefinition taskDefinition ) { final Path serviceLogOutPath = taskDefinition.getServiceLogOutPath(); final Path parent = serviceLogOutPath.getParent(); if (parent == null) { throw new IllegalStateException( "Service log path " + serviceLogOutPath + " has no parent" ); } final Path logrotateToPath = parent.resolve( executorConfiguration.getLogrotateToDirectory() ); if (!logrotateToPath.toFile().exists() || !logrotateToPath.toFile().isDirectory()) { LOG.warn( "Skipping uncompressed logrotated file cleanup for {} -- {} does not exist or is not a directory (task sandbox was probably garbage collected by Mesos)", taskDefinition.getTaskId(), logrotateToPath ); return Collections.emptyIterator(); } try { DirectoryStream<Path> dirStream = Files.newDirectoryStream( logrotateToPath, String.format("%s-*", serviceLogOutPath.getFileName()) ); return dirStream.iterator(); } catch (IOException e) { throw new RuntimeException(e); } }
Example 6
Source File: UnixSshFileSystemTest.java From jsch-nio with MIT License | 5 votes |
@Test public void testDirectoryStreamEmptyDir() throws IOException { final String root = UUID.randomUUID().toString(); Path rootPath = Paths.get( filesystemPath, root ); // create test dir assertFalse( Files.exists( rootPath ) ); Files.createDirectories( rootPath ); assertTrue( Files.exists( rootPath ) ); assertTrue( Files.isDirectory( rootPath ) ); // test dirstream DirectoryStream<Path> ds = Files.newDirectoryStream( FileSystems.getFileSystem( uri ).getPath( root ) ); try { Iterator<Path> iter = ds.iterator(); assertFalse( iter.hasNext() ); try { iter.next(); fail( "expected an exception" ); } catch ( NoSuchElementException e ) { // pass } } finally { ds.close(); } }
Example 7
Source File: OnDiskHashedIndex.java From db with GNU Affero General Public License v3.0 | 5 votes |
@Override public Iterator<String> cardinality(String app, String table, String column) throws OperationException { Path path = Paths.get(PathUtil.indexColumnFolder(app, table, column)); Iterator<String> iterator; try { DirectoryStream directoryStream = Files.newDirectoryStream(path); iterator = new Iterator<String>() { Iterator<Path> innerIterator = directoryStream.iterator(); @Override public boolean hasNext() { boolean hasNext = innerIterator.hasNext(); if (!hasNext) { try { directoryStream.close(); } catch (IOException ex) { Logger.getLogger(OnDiskHashedIndex.class.getName()).log(Level.SEVERE, null, ex); } } return hasNext; } @Override public String next() { return innerIterator.next().getFileName().toString(); } @Override public void remove() { innerIterator.remove(); } }; } catch (IOException ex) { return null; } return iterator; }
Example 8
Source File: TestDumpOnExit.java From openjdk-jdk8u with GNU General Public License v2.0 | 5 votes |
private static Path findJFRFileInCurrentDirectory() { try { DirectoryStream<Path> ds = Files.newDirectoryStream(Paths.get("."), "*pid-*.jfr"); Iterator<Path> pathIterator = ds.iterator(); if (!pathIterator.hasNext()) { throw new RuntimeException("Could not find jfr file in current directory"); } return pathIterator.next(); } catch (IOException e) { throw new RuntimeException("Could not list jfr file in current directory"); } }
Example 9
Source File: LocalFileSystemOperations.java From ats-framework with Apache License 2.0 | 5 votes |
/** * Deletes any contents that the directory might have, both files and folders; the directory * itself is not deleted * * @param directoryName the target directory name * @throws FileSystemOperationException if the parameter is not a directory or does not exist */ private void purgeContents( String directoryName ) { File file = new File(directoryName); boolean exists = checkFileExistence(file, false); if (exists) { if (file.isDirectory()) { DirectoryStream<Path> dirStream = null; try { dirStream = Files.newDirectoryStream(file.toPath()); Iterator<Path> it = dirStream.iterator(); while (it.hasNext()) { Path path = it.next(); deleteRecursively(path.toFile()); } } catch (Exception e) { throw new FileSystemOperationException("Could not purge contents of directory '" + directoryName + "'", e); } finally { IoUtils.closeStream(dirStream); } } else { throw new FileSystemOperationException(directoryName + " is not a directory! "); } } }
Example 10
Source File: FaultyFileSystem.java From jdk8u_jdk with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 11
Source File: FaultyFileSystem.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 12
Source File: FaultyFileSystem.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 13
Source File: FaultyFileSystem.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 14
Source File: Wildcards.java From CloverETL-Engine with GNU Lesser General Public License v2.1 | 4 votes |
/** * @param parent */ public CompoundDirectoryStream(DirectoryStream<DirectoryStream<T>> parent) { this.parent = parent; this.streamIterator = parent.iterator(); }
Example 15
Source File: FaultyFileSystem.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 16
Source File: FaultyFileSystem.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 17
Source File: MCRDirectoryStream.java From mycore with GNU General Public License v3.0 | 4 votes |
SimpleDirectoryIterator(MCRPath dir, DirectoryStream<Path> baseStream) { this.baseIterator = baseStream.iterator(); this.dir = dir; }
Example 18
Source File: FaultyFileSystem.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 19
Source File: FaultyFileSystem.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }
Example 20
Source File: FaultyFileSystem.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
private DirectoryStream<Path> wrap(final DirectoryStream<Path> stream) { return new DirectoryStream<Path>() { @Override public Iterator<Path> iterator() { final Iterator<Path> itr = stream.iterator(); return new Iterator<Path>() { private Path next = null; @Override public boolean hasNext() { if (next == null) { if (itr.hasNext()) { next = itr.next(); } else { return false; } } if (next != null) { try { triggerEx(next, "DirectoryIteratorException"); } catch (IOException ioe) { throw new DirectoryIteratorException(ioe); } catch (SecurityException se) { // ??? Does DS throw SecurityException during iteration? next = null; return hasNext(); } } return (next != null); } @Override public Path next() { try { if (next != null || hasNext()) { return new PassThroughFileSystem.PassThroughPath(delegate, next); } else { throw new NoSuchElementException(); } } finally { next = null; } } @Override public void remove() { itr.remove(); } }; } @Override public void close() throws IOException { stream.close(); } }; }