Example usage for java.nio.file Files size

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

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Introduction

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

Prototype

public static long size(Path path) throws IOException

Source Link

Document

Returns the size of a file (in bytes).

Usage

From source file:de.bluepair.sci.client.SHAUtils.java

public static <T> Map<String, String> sha512(Path path, Predicate<T> gard, T testValue, long blockSizePref,
        boolean forceBlockSize) {

    if (Files.notExists(path)) {
        return null;
    }/*from   ww  w .ja v a  2s.  c  om*/
    MessageDigest md = getDigest();
    MessageDigest md1 = getDigest();

    if (!gard.test(testValue)) {
        return null;
    }
    long blockSize = blockSizePref;
    long size = -1;
    try {
        size = Files.size(path);
        if (!forceBlockSize) {// maximal 10 hashsummen
            // sonst hab ich zu viele in der datei
            // stehen!
            while (size / blockSize > 10) {
                blockSize += blockSizePref;
            }
        }

    } catch (IOException e) {
        blockSize = blockSizePref;
        return null;
    }

    Map<String, String> map = new HashMap<>();

    long lastStart = 0;

    long stepDown = blockSize;

    try (final SeekableByteChannel fileChannel = Files.newByteChannel(path, StandardOpenOption.READ);) {

        final ByteBuffer buffer = ByteBuffer.allocateDirect(8192);
        int last;
        do {
            if (!gard.test(testValue) || Files.notExists(path)) {
                return null;
            }
            buffer.clear();
            last = fileChannel.read(buffer);

            buffer.flip();
            md.update(buffer);

            // calc 2checksups
            buffer.flip();
            md1.update(buffer);

            if (last > 0) {
                stepDown -= last;
            }

            // wenn ich ein 100mb netzwerk habe
            // ~ca. 5MB bertragung
            // also bei abbruch kann wiederaufgesetzt werden wenn die summen
            // bekannt sind.
            // ~hnlich Blcke berechen also
            // 0-5 c1
            // 0-10 c2
            // 5-10 c3 ...

            if (stepDown <= 0 || (last <= 0)) {
                long len = (blockSize + Math.abs(stepDown));
                if (stepDown > 0) {
                    // kottektur wenn last <0
                    len = blockSize - stepDown;
                }
                stepDown = blockSize;
                map.put("sha512_" + lastStart + "_" + len, Hex.encodeHexString(md1.digest()));
                lastStart += len;
                md1.reset();
            }

        } while (last > 0);

    } catch (IOException ex) {
        Logger.getLogger(FileAnalysis.class.getName()).log(Level.SEVERE, null, ex);
        return null;
    }

    final byte[] sha1hash = md.digest();
    map.put("sha512", Hex.encodeHexString(sha1hash));
    return map;

}

From source file:com.liferay.sync.engine.util.FileUtil.java

public static boolean hasFileChanged(SyncFile syncFile, Path filePath) throws IOException {

    if (filePath == null) {
        return true;
    }//from   ww  w  . j  a v a2 s  . c o  m

    if ((syncFile.getSize() > 0) && (syncFile.getSize() != Files.size(filePath))) {

        return true;
    }

    String checksum = getChecksum(filePath);

    return !checksum.equals(syncFile.getChecksum());
}

From source file:feign.form.BasicClientTest.java

@Test
public void testUpload() throws Exception {
    val path = Paths.get(this.getClass().getClassLoader().getResource("file.txt").toURI());
    Assert.assertTrue(Files.exists(path));

    val stringResponse = api.upload(10, Boolean.TRUE, path.toFile());
    Assert.assertEquals(Files.size(path), Long.parseLong(stringResponse));
}

From source file:org.sejda.core.service.OptimizeTaskTest.java

private long sizeOfResult(Path p) {
    try {//from  ww  w .  jav  a 2s. c  om
        return Files.size(p) / 1000;
    } catch (IOException e) {
        LOG.error("Test failed", e);
        fail(e.getMessage());
    }
    return 0;
}

From source file:sonicScream.services.SettingsService.java

public SettingsService(Path settingsFile, Path crcFile, Path profilesDirectory) throws IOException {
    try {// www  .j  a  v  a  2  s . c om
        JAXBContext context = JAXBContext.newInstance(SettingsMapWrapper.class);
        Unmarshaller um = context.createUnmarshaller();

        if (Files.size(settingsFile) == 0) {
            _settingsDictionary = new HashMap<>();
        } else {
            _settingsDictionary = ((SettingsMapWrapper) um.unmarshal(Files.newInputStream(settingsFile)))
                    .getSettingsMap();
        }

        context = JAXBContext.newInstance(CRCsMapWrapper.class);
        um = context.createUnmarshaller();

        if (Files.size(crcFile) == 0) {
            _crcDictionary = new HashMap<>();
        } else {
            _crcDictionary = ((CRCsMapWrapper) um.unmarshal(Files.newInputStream(crcFile))).getCRCsMap();
        }

        context = JAXBContext.newInstance(Profile.class);
        um = context.createUnmarshaller();
        final Unmarshaller finalUm = um;

        _profileList = new ArrayList();
        List<Path> profileFolders = FilesEx.getDirectories(profilesDirectory);
        for (Path folder : profileFolders) {
            File file = FileUtils.listFiles(folder.toFile(), new String[] { "xml" }, false).stream().findFirst()
                    .orElse(null);
            if (file != null) {
                try {
                    Profile profile = (Profile) finalUm.unmarshal(new FileInputStream(file));
                    _profileList.add(profile);
                } catch (IOException | JAXBException ex) {
                    System.err.printf("Unable to read profile %s: %s", file.toString(), ex.getMessage());
                }
            }
        }
    } catch (JAXBException ex) {
        //TODO: Error message
        ex.printStackTrace();
    }
}

From source file:com.kamike.misc.FsUtils.java

public static long fileSize(String src) {
    long ret = 0L;
    try {//ww w .  j av a  2  s . co  m
        Path source = Paths.get(src);

        ret = Files.size(source);

    } catch (IOException ex) {
        Logger.getLogger(FsUtils.class.getName()).log(Level.SEVERE, null, ex);
        ret = 0L;
    }
    return ret;
}

From source file:org.apache.nifi.minifi.FlowParser.java

/**
 * Generates a {@link Document} from the flow configuration file provided
 *//*from  w w w .  j ava2  s .  co m*/
public Document parse(final File flowConfigurationFile) {
    if (flowConfigurationFile == null) {
        logger.debug("Flow Configuration file was null");
        return null;
    }

    // if the flow doesn't exist or is 0 bytes, then return null
    final Path flowPath = flowConfigurationFile.toPath();
    try {
        if (!Files.exists(flowPath) || Files.size(flowPath) == 0) {
            logger.warn("Flow Configuration does not exist or was empty");
            return null;
        }
    } catch (IOException e) {
        logger.error("An error occurred determining the size of the Flow Configuration file");
        return null;
    }

    // otherwise create the appropriate input streams to read the file
    try (final InputStream in = Files.newInputStream(flowPath, StandardOpenOption.READ);
            final InputStream gzipIn = new GZIPInputStream(in)) {

        final byte[] flowBytes = IOUtils.toByteArray(gzipIn);
        if (flowBytes == null || flowBytes.length == 0) {
            logger.warn("Could not extract root group id because Flow Configuration File was empty");
            return null;
        }

        final DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
        docFactory.setNamespaceAware(true);
        docFactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);

        // parse the flow
        final DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
        docBuilder.setErrorHandler(new LoggingXmlParserErrorHandler("Flow Configuration", logger));
        final Document document = docBuilder.parse(new ByteArrayInputStream(flowBytes));
        return document;

    } catch (final SAXException | ParserConfigurationException | IOException ex) {
        logger.error("Unable to parse flow {} due to {}", new Object[] { flowPath.toAbsolutePath(), ex });
        return null;
    }
}

From source file:org.wte4j.examples.showcase.server.hsql.ShowCaseDbInitializerTest.java

@Test
public void createDatabaseFilesWithoutOveride() throws IOException, SQLException {
    ApplicationContext context = new StaticApplicationContext();
    Path directory = Files.createTempDirectory("database");
    Path dummyFile = directory.resolve("wte4j-showcase.script");
    Files.createFile(dummyFile);/*www  .j  a v a 2s  .c o  m*/
    try {
        ShowCaseDbInitializer showCaseDbInitializer = new ShowCaseDbInitializer(context);
        showCaseDbInitializer.createDateBaseFiles(directory, false);

        Set<String> fileNamesInDirectory = listFiles(directory);
        Set<String> expectedFileNames = new HashSet<String>();
        expectedFileNames.add("wte4j-showcase.script");
        assertEquals(expectedFileNames, fileNamesInDirectory);
        assertEquals(0, Files.size(dummyFile));
    } finally {
        deleteDirectory(directory);
    }
}

From source file:org.apache.nifi.authorization.FlowParser.java

/**
 * Extracts the root group id from the flow configuration file provided in nifi.properties, and extracts
 * the root group input ports and output ports, and their access controls.
 *
 *//*from  w w w.  j a v  a  2s.  co m*/
public FlowInfo parse(final File flowConfigurationFile) {
    if (flowConfigurationFile == null) {
        logger.debug("Flow Configuration file was null");
        return null;
    }

    // if the flow doesn't exist or is 0 bytes, then return null
    final Path flowPath = flowConfigurationFile.toPath();
    try {
        if (!Files.exists(flowPath) || Files.size(flowPath) == 0) {
            logger.warn("Flow Configuration does not exist or was empty");
            return null;
        }
    } catch (IOException e) {
        logger.error("An error occurred determining the size of the Flow Configuration file");
        return null;
    }

    // otherwise create the appropriate input streams to read the file
    try (final InputStream in = Files.newInputStream(flowPath, StandardOpenOption.READ);
            final InputStream gzipIn = new GZIPInputStream(in)) {

        final byte[] flowBytes = IOUtils.toByteArray(gzipIn);
        if (flowBytes == null || flowBytes.length == 0) {
            logger.warn("Could not extract root group id because Flow Configuration File was empty");
            return null;
        }

        // create validating document builder
        final DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
        docFactory.setNamespaceAware(true);
        docFactory.setSchema(flowSchema);

        // parse the flow
        final DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
        final Document document = docBuilder.parse(new ByteArrayInputStream(flowBytes));

        // extract the root group id
        final Element rootElement = document.getDocumentElement();

        final Element rootGroupElement = (Element) rootElement.getElementsByTagName("rootGroup").item(0);
        if (rootGroupElement == null) {
            logger.warn("rootGroup element not found in Flow Configuration file");
            return null;
        }

        final Element rootGroupIdElement = (Element) rootGroupElement.getElementsByTagName("id").item(0);
        if (rootGroupIdElement == null) {
            logger.warn("id element not found under rootGroup in Flow Configuration file");
            return null;
        }

        final String rootGroupId = rootGroupIdElement.getTextContent();

        final List<PortDTO> ports = new ArrayList<>();
        ports.addAll(getPorts(rootGroupElement, "inputPort"));
        ports.addAll(getPorts(rootGroupElement, "outputPort"));

        return new FlowInfo(rootGroupId, ports);

    } catch (final SAXException | ParserConfigurationException | IOException ex) {
        logger.error("Unable to parse flow {} due to {}", new Object[] { flowPath.toAbsolutePath(), ex });
        return null;
    }
}

From source file:fr.duminy.jbackup.core.archive.FileCollector.java

private void collectFilesImpl(List<SourceWithPath> collectedFiles, Collection<ArchiveParameters.Source> sources,
        MutableLong totalSize, Cancellable cancellable) throws IOException {
    totalSize.setValue(0L);/*w w  w  . j  ava  2 s  .c o m*/

    for (ArchiveParameters.Source source : sources) {
        Path sourcePath = source.getSource();
        if (!sourcePath.isAbsolute()) {
            throw new IllegalArgumentException(String.format("The file '%s' is relative.", sourcePath));
        }

        long size;

        if (Files.isDirectory(sourcePath)) {
            size = collect(collectedFiles, sourcePath, source.getDirFilter(), source.getFileFilter(),
                    cancellable);
        } else {
            collectedFiles.add(new SourceWithPath(sourcePath, sourcePath));
            size = Files.size(sourcePath);
        }

        totalSize.add(size);
    }
}