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.upplication.s3fs.util.AmazonS3ClientMock.java

public void clear() {
    try {//from  w ww  . j av  a2s  .co m
        Files.walkFileTree(base, new SimpleFileVisitor<Path>() {
            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
                if (dir != base)
                    Files.delete(dir);
                return FileVisitResult.CONTINUE;
            }

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

From source file:org.mycore.common.xml.MCRXMLFunctions.java

/**
 * Method returns the amount of space consumed by the files contained in the
 * derivate container. The returned string is already formatted meaning it
 * has already the optimal measurement unit attached (e.g. 142 MB, ).
 *
 * @param derivateId/* ww  w .j  a  v  a 2s. co  m*/
 *            the derivate id for which the size should be returned
 * @return the size as formatted string
 */
public static String getSize(String derivateId) throws IOException {
    MCRPath rootPath = MCRPath.getPath(derivateId, "/");
    final AtomicLong size = new AtomicLong();
    Files.walkFileTree(rootPath, new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            size.addAndGet(attrs.size());
            return super.visitFile(file, attrs);
        }

    });
    return MCRUtils.getSizeFormatted(size.get());
}

From source file:com.cloudbees.clickstack.util.Files2.java

/**
 * Update file and dir permissions./* w w  w .  jav a 2  s.c  om*/
 *
 * @param path
 * @param filePermissions
 * @param dirPermissions
 * @throws RuntimeIOException
 */
private static void chmodOverwritePermissions(@Nonnull Path path,
        @Nonnull final Set<PosixFilePermission> filePermissions,
        @Nonnull final Set<PosixFilePermission> dirPermissions) throws RuntimeIOException {
    if (!Files.exists(path)) {
        throw new IllegalArgumentException("Given path " + path + " does not exist");
    }

    SimpleFileVisitor<Path> setReadOnlyFileVisitor = new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            if (Files.isDirectory(file)) {
                throw new IllegalStateException("No dir expected here: " + file);
            } else {
                Files.setPosixFilePermissions(file, filePermissions);
            }
            return super.visitFile(file, attrs);
        }

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            Files.setPosixFilePermissions(dir, dirPermissions);
            return super.preVisitDirectory(dir, attrs);
        }
    };
    try {
        Files.walkFileTree(path, setReadOnlyFileVisitor);
    } catch (IOException e) {
        throw new RuntimeIOException("Exception setting permissions file permissions to " + filePermissions
                + " and folder permissions to " + dirPermissions + " on " + path, e);
    }
}

From source file:net.sourceforge.pmd.docs.RuleDocGenerator.java

/**
 * Searches for the source file of the given ruleset. This provides the information
 * for the "editme" link.//from   ww w  . ja v  a2 s  .  co m
 *
 * @param ruleset the ruleset to search for.
 * @return
 * @throws IOException
 */
private String getRuleSetSourceFilepath(RuleSet ruleset) throws IOException {
    final String rulesetFilename = FilenameUtils.normalize(StringUtils.chomp(ruleset.getFileName()));
    final List<Path> foundPathResult = new LinkedList<>();

    Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            String path = file.toString();
            if (path.contains("src") && path.endsWith(rulesetFilename)) {
                foundPathResult.add(file);
                return FileVisitResult.TERMINATE;
            }
            return super.visitFile(file, attrs);
        }
    });

    if (!foundPathResult.isEmpty()) {
        Path foundPath = foundPathResult.get(0);
        foundPath = root.relativize(foundPath);
        // Note: the path is normalized to unix path separators, so that the editme link
        // uses forward slashes
        return FilenameUtils.normalize(foundPath.toString(), true);
    }

    return StringUtils.chomp(ruleset.getFileName());
}

From source file:org.olat.ims.qti.qpool.QTIImportProcessor.java

private List<DocInfos> traverseZip_nio(File file) throws IOException {
    List<DocInfos> docInfos = new ArrayList<>();

    Path fPath = FileSystems.newFileSystem(file.toPath(), null).getPath("/");
    if (fPath != null) {
        DocInfosVisitor visitor = new DocInfosVisitor();
        Files.walkFileTree(fPath, visitor);

        List<Path> xmlFiles = visitor.getXmlFiles();
        for (Path xmlFile : xmlFiles) {
            InputStream in = Files.newInputStream(xmlFile);

            Document doc = readXml(in);
            if (doc != null) {
                DocInfos d = new DocInfos();
                d.setDocument(doc);//from   www . ja  v a 2  s.  c  om
                d.setRoot(xmlFile.getParent());
                d.setFilename(xmlFile.getFileName().toString());
                docInfos.add(d);
            }

        }
    }

    return docInfos;
}

From source file:org.schedulesdirect.grabber.Grabber.java

private void removeExpiredSchedules(FileSystem vfs) throws IOException, JSONException {
    final int[] i = new int[] { 0 };
    final Path root = vfs.getPath("schedules");
    Files.walkFileTree(root, new FileVisitor<Path>() {

        @Override// w  w  w .j a  v a2 s.c om
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            return !Files.isSameFile(dir, root) ? FileVisitResult.SKIP_SUBTREE : FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            try (InputStream ins = Files.newInputStream(file)) {
                JSONArray sched = Config.get().getObjectMapper()
                        .readValue(IOUtils.toString(ins, ZipEpgClient.ZIP_CHARSET.toString()), JSONObject.class)
                        .getJSONArray("programs");
                if (isScheduleExpired(sched)) {
                    Files.delete(file);
                    ++i[0];
                }
            }
            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;
        }

    });
    LOG.info(String.format("Removed %d expired schedule(s).", i[0]));
}

From source file:org.eclipse.cdt.arduino.core.internal.board.ArduinoManager.java

public static void recursiveDelete(Path directory) throws IOException {
    Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
        @Override/*from   w  ww. j  ava2s.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:net.sourceforge.pmd.docs.RuleDocGenerator.java

private String getRuleClassSourceFilepath(String ruleClass) throws IOException {
    final String relativeSourceFilename = ruleClass.replaceAll("\\.", Matcher.quoteReplacement(File.separator))
            + ".java";
    final List<Path> foundPathResult = new LinkedList<>();

    Files.walkFileTree(root, new SimpleFileVisitor<Path>() {
        @Override//from  w  w  w.j  a va  2 s.  c  o  m
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            String path = file.toString();
            if (path.contains("src") && path.endsWith(relativeSourceFilename)) {
                foundPathResult.add(file);
                return FileVisitResult.TERMINATE;
            }
            return super.visitFile(file, attrs);
        }
    });

    if (!foundPathResult.isEmpty()) {
        Path foundPath = foundPathResult.get(0);
        foundPath = root.relativize(foundPath);
        return FilenameUtils.normalize(foundPath.toString(), true);
    }

    return FilenameUtils.normalize(relativeSourceFilename, true);
}

From source file:org.kurento.test.services.KmsService.java

private void deleteFolderAndContent(Path folder) throws IOException {
    if (folder != null) {
        Files.walkFileTree(folder, new SimpleFileVisitor<Path>() {
            @Override//from   w  w  w. j  a v a2s. co  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;
            }
        });
    }
}