Example usage for java.nio.file Files walkFileTree

List of usage examples for java.nio.file Files walkFileTree

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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.phenotips.variantstore.input.vcf.VCFManager.java

@Override
public List<String> getAllIndividuals() {
    final List<String> list = new ArrayList<>();

    try {/*from ww  w  . jav a 2  s .  c om*/
        Files.walkFileTree(this.path, new SimpleFileVisitor<Path>() {
            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                if (attrs.isDirectory()) {
                    return FileVisitResult.CONTINUE;
                }
                String id = file.getFileName().toString();
                id = StringUtils.removeEnd(id, suffix);
                list.add(id);
                return FileVisitResult.CONTINUE;
            }
        });
    } catch (IOException e) {
        logger.error("Error getting all individuals");
    }

    return list;
}

From source file:ufo.test.spark.service.WordCountServiceTest.java

private void deleteRecursively(Path path) throws IOException {
    if (Files.exists(path)) {
        //delete recursively
        Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
            @Override/*  w w  w  .  ja  v a  2s.  c om*/
            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;
            }
        });
    }
    assertFalse(Files.exists(path));
}

From source file:org.esa.nest.util.FileIOUtils.java

public static void deleteFolder(final Path source) throws IOException {
    Files.walkFileTree(source, new SimpleFileVisitor<Path>() {
        @Override//from  w  w  w.j  a v  a2s.  c o  m
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            Files.delete(file);
            return CONTINUE;
        }

        @Override
        public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
            if (exc == null) {
                Files.delete(dir);
                return CONTINUE;
            } else {
                throw exc;
            }
        }
    });
}

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

/**
 * run/*from  ww  w . j a  v a 2 s  .c  o m*/
 * <p>
 * @throws Exception 
 */
public void run() throws Exception {
    checkDirectories();
    initExcludeMatchers();

    myEvacuateCandidates = new TreeMap<>();
    myFailedChainPreparations = Collections.synchronizedMap(new HashMap<>());
    myFutures = new HashSet<>();
    myExclusionDirCount = 0;
    myEvacuationDirCount = 0;
    myExclusionFileCount = 0;
    myEvacuationFileCount = 0;

    Files.walkFileTree(myBackupDir, 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;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            return Runner.this.visitFile(file, attrs);
        }

        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            if ("System Volume Information".equals((dir.getFileName()))) {
                return FileVisitResult.SKIP_SUBTREE;
            }

            return Runner.this.preVisitDirectory(dir, attrs);
        }

    });

    if (myEvacuateCandidates.size() == 0) {
        myLog.info("No candidates for evacuation found");
    } else {
        StringBuilder sb = new StringBuilder("\nFound candidates for evacuation:");
        myEvacuateCandidates.keySet().forEach(p -> sb.append("\n    " + p.toString()));
        myLog.info(sb.toString());
    }

    if (myDryRun) {
        myLog.debug("DryRun flag is set. Doing nothing");
        return;
    }

    if (myFutures.size() > 0) {
        myLog.debug("Waiting for all async tasks to complete");
        CompletableFuture.allOf(myFutures.toArray(new CompletableFuture[myFutures.size()])).get();
    }

    if (myFailedChainPreparations.size() > 0) {
        for (Path path : myFailedChainPreparations.keySet()) {
            myLog.error("exception occured", myFailedChainPreparations.get(path));
        }

        throw new Exception("chain preparation failed. See above error messages");
    }

    for (Path src : myEvacuateCandidates.keySet()) {
        Path dst = myEvacuateCandidates.get(src);
        Path dstParent = dst.getParent();

        if (Files.notExists(dstParent)) {
            Files.createDirectories(dstParent); // FUTURE: overtake file attributes from src
        }

        if (myMove) {
            try {
                myLog.debug(
                        "Moving file system object \"" + src.toString() + "\" to \"" + dst.toString() + "\"");
                Files.move(src, dst, StandardCopyOption.ATOMIC_MOVE);
            } catch (AtomicMoveNotSupportedException e) {
                myLog.warn("Atomic move not supported. Try copy and then delete");

                if (Files.isDirectory(src)) {
                    myLog.debug("Copying folder \"" + src.toString() + "\" to \"" + dst.toString() + "\"");
                    FileUtils.copyDirectory(src.toFile(), dst.toFile());
                    myLog.debug("Delete folder \"" + src.toString() + "\"");
                    FileUtils.deleteDirectory(src.toFile());
                } else {
                    myLog.debug("Copy file \"" + src.toString() + "\" to \"" + dst.toString() + "\"");
                    FileUtils.copyFile(src.toFile(), dst.toFile());
                    myLog.debug("Delete file \"" + src.toString() + "\"");
                    Files.delete(src);
                }
            }

        } else {
            if (Files.isDirectory(src)) {
                myLog.debug("Copying folder \"" + src.toString() + "\" to \"" + dst.toString() + "\"");
                FileUtils.copyDirectory(src.toFile(), dst.toFile());
            } else {
                myLog.debug("Copy file \"" + src.toString() + "\" to \"" + dst.toString() + "\"");
                FileUtils.copyFile(src.toFile(), dst.toFile());
            }
        }
    }

    myLog.info("\nSuccessfully terminated." + "\n             Evacuated  Skipped" + "\n    Files  : "
            + StringUtils.leftPad("" + myEvacuationDirCount, 9)
            + StringUtils.leftPad("" + myExclusionDirCount, 9) + "\n    Folders: "
            + StringUtils.leftPad("" + myEvacuationFileCount, 9)
            + StringUtils.leftPad("" + myExclusionFileCount, 9));
}

From source file:neembuu.uploader.zip.generator.NUZipFileGenerator.java

private void walkOverAllFiles() throws IOException {
    for (final Path uploadersDirectory : uploadersDirectories) {
        Files.walkFileTree(uploadersDirectory, new FileVisitor<Path>() {
            @Override/*w  ww .j a  va2s.  co m*/
            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
                return FileVisitResult.CONTINUE;
            }

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

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

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                if (file.getFileName().toString().endsWith(".class")) {
                    visitClassFile(file, attrs, uploadersDirectory);
                }
                return FileVisitResult.CONTINUE;
            }
        });
    }

}

From source file:org.nuxeo.connect.update.standalone.PackageTestCase.java

/** Zips a directory into the given ZIP file. */
protected void createZip(File zip, Path basePath) throws IOException {
    try (ZipOutputStream zout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zip)))) {
        Files.walkFileTree(basePath, new SimpleFileVisitor<Path>() {
            @Override/*  w  w w  .j  ava 2s.  com*/
            public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException {
                if (attrs.isDirectory()) {
                    return FileVisitResult.CONTINUE;
                }
                String rel = basePath.relativize(path).toString();
                if (rel.startsWith(".")) {
                    return FileVisitResult.CONTINUE;
                }
                zout.putNextEntry(new ZipEntry(rel));
                try (InputStream in = Files.newInputStream(path)) {
                    org.apache.commons.io.IOUtils.copy(in, zout);
                }
                zout.closeEntry();
                return FileVisitResult.CONTINUE;
            }
        });
        zout.flush();
    }
}

From source file:org.neo4j.graphdb.LuceneLabelScanStoreIT.java

private void corruptIndex(NeoStoreDataSource dataSource) throws IOException {
    File labelScanStoreDirectory = getLabelScanStoreDirectory(dataSource);
    Files.walkFileTree(labelScanStoreDirectory.toPath(), new SimpleFileVisitor<Path>() {
        @Override//from  w  ww .  ja  v  a2 s  .c o m
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            Files.write(file, ArrayUtils.add(Files.readAllBytes(file), (byte) 7));
            return FileVisitResult.CONTINUE;
        }
    });
}

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

private void auditScheds() throws IOException, JSONException, ParseException {
    final Map<String, JSONObject> stations = getStationMap();
    final SimpleDateFormat FMT = Config.get().getDateTimeFormat();
    final Path scheds = vfs.getPath("schedules");
    if (Files.isDirectory(scheds)) {
        Files.walkFileTree(scheds, new FileVisitor<Path>() {

            @Override//from  ww  w .  j a  v  a 2s  .c  om
            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
                return dir.equals(scheds) ? FileVisitResult.CONTINUE : FileVisitResult.SKIP_SUBTREE;
            }

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                boolean failed = false;
                String id = getStationIdFromFileName(file.getFileName().toString());
                JSONObject station = stations.get(id);
                StringBuilder msg = new StringBuilder(String.format("Inspecting %s (%s)... ",
                        station != null ? station.getString("callsign") : String.format("[UNKNOWN: %s]", id),
                        id));
                String input;
                try (InputStream ins = Files.newInputStream(file)) {
                    input = IOUtils.toString(ins, ZipEpgClient.ZIP_CHARSET.toString());
                }
                ObjectMapper mapper = Config.get().getObjectMapper();
                JSONArray jarr = mapper.readValue(
                        mapper.readValue(input, JSONObject.class).getJSONArray("programs").toString(),
                        JSONArray.class);
                for (int i = 1; i < jarr.length(); ++i) {
                    long start, prevStart;
                    JSONObject prev;
                    try {
                        start = FMT.parse(jarr.getJSONObject(i).getString("airDateTime")).getTime();
                        prev = jarr.getJSONObject(i - 1);
                        prevStart = FMT.parse(prev.getString("airDateTime")).getTime()
                                + 1000L * prev.getLong("duration");
                    } catch (ParseException e) {
                        throw new RuntimeException(e);
                    }
                    if (prevStart != start) {
                        msg.append(String.format("FAILED! [%s]", prev.getString("airDateTime")));
                        LOG.error(msg);
                        failed = true;
                        Auditor.this.failed = true;
                        break;
                    }
                }
                if (!failed) {
                    msg.append("PASSED!");
                    LOG.info(msg);
                }
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
                LOG.error(String.format("Unable to process schedule file '%s'", file), exc);
                Auditor.this.failed = true;
                return FileVisitResult.CONTINUE;
            }

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

        });
    }
}

From source file:org.swiftexplorer.util.FileUtils.java

public static Queue<Path> getAllFilesPath(Path srcDir, boolean inludeDir) throws IOException {
    Queue<Path> queue = new ArrayDeque<Path>();
    if (srcDir == null || !Files.isDirectory(srcDir))
        return queue;

    TreePathFinder tpf = new TreePathFinder(queue, inludeDir);
    Files.walkFileTree(srcDir, tpf);

    return queue;
}

From source file:act.installer.pubchem.PubchemTTLMergerTest.java

@After
public void tearDown() throws Exception {
    // Clean up temp dir once the test is complete.  TODO: use mocks instead maybe?  But testing RocksDB helps too...
    /* With help from://ww  w . ja  v a  2s. c o  m
     * http://stackoverflow.com/questions/779519/delete-directories-recursively-in-java/27917071#27917071 */
    Files.walkFileTree(tempDirPath, new FileVisitor<Path>() {
        @Override
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            // walkFileTree may ignore . and .., but I have never found it a /bad/ idea to check for these special names.
            if (!THIS_DIR.equals(file.toFile().getName()) && !PARENT_DIR.equals(file.toFile().getName())) {
                Files.delete(file);
            }
            return FileVisitResult.CONTINUE;
        }

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

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

    // One last check to make sure the top level directory is removed.
    if (tempDirPath.toFile().exists()) {
        Files.delete(tempDirPath);
    }
}