Example usage for java.nio.file Files createTempFile

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

  1. HOME
  2. Java
  3. java
  4. java.nio.file.*
  5. Files
  6. createTempFile

Introduction

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

Prototype

public static Path createTempFile(String prefix, String suffix, FileAttribute<?>... attrs) throws IOException

Source Link

Document

Creates an empty file in the default temporary-file directory, using the given prefix and suffix to generate its name.

Usage

From source file:business.services.FileService.java

public File uploadPart(User user, String name, File.AttachmentType type, MultipartFile file, Integer chunk,
        Integer chunks, String flowIdentifier) {
    try {//w w w.  j  av  a2  s .  com
        String identifier = user.getId().toString() + "_" + flowIdentifier;
        String contentType = MediaType.APPLICATION_OCTET_STREAM_VALUE;
        log.info("File content-type: " + file.getContentType());
        try {
            contentType = MediaType.valueOf(file.getContentType()).toString();
            log.info("Media type: " + contentType);
        } catch (InvalidMediaTypeException e) {
            log.warn("Invalid content type: " + e.getMediaType());
            //throw new FileUploadError("Invalid content type: " + e.getMediaType());
        }
        InputStream input = file.getInputStream();

        // Create temporary file for chunk
        Path path = fileSystem.getPath(uploadPath).normalize();
        if (!path.toFile().exists()) {
            Files.createDirectory(path);
        }
        name = URLEncoder.encode(name, "utf-8");

        String prefix = getBasename(name);
        String suffix = getExtension(name);
        Path f = Files.createTempFile(path, prefix, suffix + "." + chunk + ".chunk").normalize();
        // filter path names that point to places outside the upload path.
        // E.g., to prevent that in cases where clients use '../' in the filename
        // arbitrary locations are reachable.
        if (!Files.isSameFile(path, f.getParent())) {
            // Path f is not in the upload path. Maybe 'name' contains '..'?
            throw new FileUploadError("Invalid file name");
        }
        log.info("Copying file to " + f.toString());

        // Copy chunk to temporary file
        Files.copy(input, f, StandardCopyOption.REPLACE_EXISTING);

        // Save chunk location in chunk map
        SortedMap<Integer, Path> chunkMap;
        synchronized (uploadChunks) {
            // FIXME: perhaps use a better identifier? Not sure if this one 
            // is unique enough...
            chunkMap = uploadChunks.get(identifier);
            if (chunkMap == null) {
                chunkMap = new TreeMap<Integer, Path>();
                uploadChunks.put(identifier, chunkMap);
            }
        }
        chunkMap.put(chunk, f);
        log.info("Chunk " + chunk + " saved to " + f.toString());

        // Assemble complete file if all chunks have been received
        if (chunkMap.size() == chunks.intValue()) {
            uploadChunks.remove(identifier);
            Path assembly = Files.createTempFile(path, prefix, suffix).normalize();
            // filter path names that point to places outside the upload path.
            // E.g., to prevent that in cases where clients use '../' in the filename
            // arbitrary locations are reachable.
            if (!Files.isSameFile(path, assembly.getParent())) {
                // Path assembly is not in the upload path. Maybe 'name' contains '..'?
                throw new FileUploadError("Invalid file name");
            }
            log.info("Assembling file " + assembly.toString() + " from " + chunks + " chunks...");
            OutputStream out = Files.newOutputStream(assembly, StandardOpenOption.CREATE,
                    StandardOpenOption.APPEND);

            // Copy chunks to assembly file, delete chunk files
            for (int i = 1; i <= chunks; i++) {
                //log.info("Copying chunk " + i + "...");
                Path source = chunkMap.get(new Integer(i));
                if (source == null) {
                    log.error("Cannot find chunk " + i);
                    throw new FileUploadError("Cannot find chunk " + i);
                }
                Files.copy(source, out);
                Files.delete(source);
            }

            // Save assembled file name to database
            log.info("Saving attachment to database...");
            File attachment = new File();
            attachment.setName(URLDecoder.decode(name, "utf-8"));
            attachment.setType(type);
            attachment.setMimeType(contentType);
            attachment.setDate(new Date());
            attachment.setUploader(user);
            attachment.setFilename(assembly.getFileName().toString());
            attachment = fileRepository.save(attachment);
            return attachment;
        }
        return null;
    } catch (IOException e) {
        log.error(e);
        throw new FileUploadError(e.getMessage());
    }
}

From source file:io.druid.server.namespace.cache.NamespaceExtractionCacheManagerExecutorsTest.java

@Before
public void setUp() throws IOException {
    lifecycle = new Lifecycle();
    manager = new OnHeapNamespaceExtractionCacheManager(lifecycle, fnCache, new NoopServiceEmitter(),
            ImmutableMap.<Class<? extends ExtractionNamespace>, ExtractionNamespaceFunctionFactory<?>>of(
                    URIExtractionNamespace.class,
                    new URIExtractionNamespaceFunctionFactory(
                            ImmutableMap.<String, SearchableVersionedDataFinder>of("file",
                                    new LocalFileTimestampVersionFinder()))));
    tmpFile = Files.createTempFile(tmpDir, "druidTestURIExtractionNS", ".dat").toFile();
    tmpFile.deleteOnExit();//w  w  w.java  2 s .c  o m
    final ObjectMapper mapper = new DefaultObjectMapper();
    try (OutputStream ostream = new FileOutputStream(tmpFile)) {
        try (OutputStreamWriter out = new OutputStreamWriter(ostream)) {
            out.write(mapper.writeValueAsString(ImmutableMap.<String, String>of("foo", "bar")));
        }
    }
    factory = new URIExtractionNamespaceFunctionFactory(ImmutableMap
            .<String, SearchableVersionedDataFinder>of("file", new LocalFileTimestampVersionFinder())) {
        public Callable<String> getCachePopulator(final URIExtractionNamespace extractionNamespace,
                final String lastVersion, final Map<String, String> cache) {
            final Callable<String> superCallable = super.getCachePopulator(extractionNamespace, lastVersion,
                    cache);
            return new Callable<String>() {
                @Override
                public String call() throws Exception {
                    superCallable.call();
                    return String.format("%d", System.currentTimeMillis());
                }
            };
        }
    };
}

From source file:de.unirostock.sems.caroweb.Converter.java

private void run(HttpServletRequest request, HttpServletResponse response, String uploadedName, String[] req,
        File tmp, File out, Path STORAGE) throws ServletException, IOException {
    cleanUp();/*w w  w.  j a v  a2  s . co  m*/

    uploadedName.replaceAll("[^A-Za-z0-9 ]", "_");
    if (uploadedName.length() < 3)
        uploadedName += "container";

    CaRoConverter conv = null;

    if (req[1].equals("caro"))
        conv = new CaToRo(tmp);
    else if (req[1].equals("roca"))
        conv = new RoToCa(tmp);
    else {
        error(request, response, "do not know what to do");
        return;
    }
    conv.convertTo(out);

    List<CaRoNotification> notifications = conv.getNotifications();

    Path result = null;
    if (out.exists()) {
        result = Files.createTempFile(STORAGE, uploadedName,
                "-converted-" + CaRoWebutils.getTimeStamp() + "." + (req[1].equals("caro") ? "ro" : "omex"));
        try {
            Files.copy(out.toPath(), result, StandardCopyOption.REPLACE_EXISTING);
        } catch (Exception e) {
            notifications.add(new CaRoNotification(CaRoNotification.SERVERITY_ERROR,
                    "wasn't able to copy converted container to storage"));
        }
    }

    JSONArray errors = new JSONArray();
    JSONArray warnings = new JSONArray();
    JSONArray notes = new JSONArray();
    for (CaRoNotification note : notifications)
        if (note.getSeverity() == CaRoNotification.SERVERITY_ERROR)
            errors.add(note.getMessage());
        else if (note.getSeverity() == CaRoNotification.SERVERITY_WARN)
            warnings.add(note.getMessage());
        else if (note.getSeverity() == CaRoNotification.SERVERITY_NOTE)
            notes.add(note.getMessage());

    JSONObject json = new JSONObject();
    json.put("errors", errors);
    json.put("warnings", warnings);
    json.put("notifications", notes);

    if (result != null && Files.exists(result)) {
        json.put("checkout", result.getFileName().toString());
        if (request.getParameter("redirect") != null && request.getParameter("redirect").equals("checkout")) {
            response.sendRedirect("/checkout/" + result.getFileName().toString());
        }
    }

    response.setContentType("application/json");
    response.setCharacterEncoding("UTF-8");
    PrintWriter outWriter = response.getWriter();
    outWriter.print(json);
    out.delete();
}

From source file:org.egov.infra.filestore.service.impl.LocalDiskFileStoreServiceTest.java

private File createTempFileWithContent() throws IOException {
    final File newFile = Files.createTempFile(tempFilePath, "xyz", "txt").toFile();
    FileUtils.write(newFile, "Test", UTF_8);
    return newFile;
}

From source file:io.fabric8.docker.client.impl.ImageOperationImpl.java

@Override
public Boolean load(InputStream inputStream) {
    try {//  ww  w  . ja v a2 s. c  o m
        File tempFile = Files.createTempFile(Paths.get(DEFAULT_TEMP_DIR), DOCKER_PREFIX, BZIP2_SUFFIX).toFile();
        try (final FileOutputStream fout = new FileOutputStream(tempFile)) {

            InputStreamPumper pumper = new InputStreamPumper(inputStream, new Callback<byte[], Void>() {
                @Override
                public Void call(byte[] input) {
                    try {
                        fout.write(input);
                    } catch (IOException e) {
                        throw DockerClientException.launderThrowable(e);
                    }
                    return null;
                }
            });
            pumper.run();
            pumper.close();
        }
        return load(tempFile.getAbsolutePath());
    } catch (Exception e) {
        throw DockerClientException.launderThrowable(e);
    }
}

From source file:org.nuxeo.ecm.core.api.impl.blob.FileBlob.java

/**
 * Moves this blob's temporary file to a new non-temporary location.
 * <p>//from   www  . ja va 2  s. co m
 * The move is done as atomically as possible.
 *
 * @since 7.2
 */
public void moveTo(File dest) throws IOException {
    if (!isTemporary) {
        throw new IOException("Cannot move non-temporary file: " + file);
    }
    Path path = file.toPath();
    Path destPath = dest.toPath();
    try {
        Files.move(path, destPath, ATOMIC_MOVE);
        file = dest;
    } catch (AtomicMoveNotSupportedException e) {
        // Do a copy through a tmp file on the same filesystem then atomic rename
        Path tmp = Files.createTempFile(destPath.getParent(), null, null);
        try {
            Files.copy(path, tmp, REPLACE_EXISTING);
            Files.delete(path);
            Files.move(tmp, destPath, ATOMIC_MOVE);
            file = dest;
        } catch (IOException ioe) {
            // don't leave tmp file in case of error
            Files.deleteIfExists(tmp);
            throw ioe;
        }
    }
    isTemporary = false;
}

From source file:org.guvnor.ala.build.maven.executor.MavenDependencyConfigExecutorTest.java

private Path generateSettingsXml() throws IOException {
    final String localRepositoryUrl = m2Folder.getAbsolutePath();
    String settingsXml = "<settings xmlns=\"http://maven.apache.org/SETTINGS/1.0.0\"\n"
            + "      xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
            + "      xsi:schemaLocation=\"http://maven.apache.org/SETTINGS/1.0.0\n"
            + "                          http://maven.apache.org/xsd/settings-1.0.0.xsd\">\n"
            + "  <localRepository>" + localRepositoryUrl + "</localRepository>\n"
            + "  <offline>true</offline>\n" + "</settings>\n";

    final Path settingsXmlPath = Files.createTempFile(m2Folder.toPath(), "settings", ".xml");
    Files.write(settingsXmlPath, settingsXml.getBytes());
    return settingsXmlPath;
}

From source file:com.haulmont.yarg.formatters.impl.doc.connector.OfficeResourceProvider.java

protected File createTempFile(byte[] bytes) {
    try {//from   w  ww .j  a  va 2  s.  com
        String tempFileName = String.format("document%d", counter.incrementAndGet());
        String tempFileExt = ".tmp";
        if (StringUtils.isNotBlank(officeIntegration.getTemporaryDirPath())) {
            Path tempDir = Paths.get(officeIntegration.getTemporaryDirPath());
            tempDir.toFile().mkdirs();

            temporaryFile = Files.createTempFile(tempDir, tempFileName, tempFileExt).toFile();
        } else {
            temporaryFile = File.createTempFile(tempFileName, tempFileExt);
        }
        FileUtils.writeByteArrayToFile(temporaryFile, bytes);
        return temporaryFile;
    } catch (java.io.IOException e) {
        throw new ReportFormattingException("Could not create temporary file for pdf conversion", e);
    }
}

From source file:org.egov.infra.filestore.service.impl.LocalDiskFileStoreServiceTest.java

@Test
public final void testUploadSetOfFile() throws IOException {
    Set<File> files = new HashSet<>();
    for (int no = 0; no < 10; no++) {
        final File newFile = Files.createTempFile(tempFilePath, "xyz" + no, "txt").toFile();
        FileUtils.write(newFile, "Test", UTF_8);
        files.add(newFile);//  ww  w  .j av a2 s  . c o m
    }
    for (File file : files) {
        Files.deleteIfExists(file.toPath());
    }
}

From source file:nl.salp.warcraft4j.config.PropertyWarcraft4jConfigTest.java

@Test
public void shouldNotCreateCacheDirectoryIfExisting() throws Exception {
    Files.createDirectories(cacheDir);
    assertTrue("Cache directory does not exist after creation.", Files.exists(cacheDir));
    Path testFile = Files.createTempFile(cacheDir, "testFile", "tmp");
    long creationTime = Files.getLastModifiedTime(cacheDir).toMillis();

    PropertyWarcraft4jConfig config = new PropertyWarcraft4jConfig(configuration);

    assertTrue("Cache directory does not exist.", Files.exists(config.getCacheDirectory()));
    assertTrue("Cache directory is not a directory.", Files.isDirectory(config.getCacheDirectory()));
    assertTrue("Cache directory is not readable.", Files.isReadable(config.getCacheDirectory()));
    assertEquals("Cache directory modification time changed after initialisation", creationTime,
            Files.getLastModifiedTime(config.getCacheDirectory()).toMillis());
    assertTrue("Test file in cache directory does not exist anymore.", Files.exists(testFile));
}