Example usage for java.nio.file.attribute BasicFileAttributes fileKey

List of usage examples for java.nio.file.attribute BasicFileAttributes fileKey

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Introduction

In this page you can find the example usage for java.nio.file.attribute BasicFileAttributes fileKey.

Prototype

Object fileKey();

Source Link

Document

Returns an object that uniquely identifies the given file, or null if a file key is not available.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {

    BasicFileAttributes attr = null;
    Path path = Paths.get("C:/tutorial/Java/JavaFX", "Topic.txt");

    attr = Files.readAttributes(path, BasicFileAttributes.class);

    System.out.println(attr.fileKey());

}

From source file:Test.java

public static void main(String[] args) throws Exception {
    Path path = FileSystems.getDefault().getPath("/home/docs/users.txt");
    // BasicFileAttributes attributes = Files.readAttributes(path,
    // BasicFileAttributes.class);
    BasicFileAttributeView view = Files.getFileAttributeView(path, BasicFileAttributeView.class);
    BasicFileAttributes attributes = view.readAttributes();

    System.out.println("Creation Time: " + attributes.creationTime());
    System.out.println("Last Accessed Time: " + attributes.lastAccessTime());
    System.out.println("Last Modified Time: " + attributes.lastModifiedTime());
    System.out.println("File Key: " + attributes.fileKey());
    System.out.println("Directory: " + attributes.isDirectory());
    System.out.println("Other Type of File: " + attributes.isOther());
    System.out.println("Regular File: " + attributes.isRegularFile());
    System.out.println("Symbolic File: " + attributes.isSymbolicLink());
    System.out.println("Size: " + attributes.size());
}

From source file:com.github.sakserv.lslock.cli.LockListerCli.java

/**
 * Returns the inode of the supplied File
 *
 * @param lockFile      Retrieve inode for this File
 * @return      The inode of the supplied lockFile
 * @throws IOException      If the File can not be found
 *///from   w ww. j ava 2  s .  c o m
public static int getInode(File lockFile) throws IOException {
    BasicFileAttributes basicFileAttributes = Files.readAttributes(lockFile.toPath(),
            BasicFileAttributes.class);
    Object fileKey = basicFileAttributes.fileKey();
    String fileAttrString = fileKey.toString();
    return Integer.parseInt(
            fileAttrString.substring(fileAttrString.indexOf("ino=") + 4, fileAttrString.indexOf(")")));
}

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

public static String getFileKey(Path filePath) {
    if (!Files.exists(filePath)) {
        return "";
    }/* w ww  .  j  a  v  a2  s . c om*/

    try {
        BasicFileAttributes basicFileAttributes = Files.readAttributes(filePath, BasicFileAttributes.class);

        if (OSDetector.isWindows()) {
            return String.valueOf(basicFileAttributes.creationTime());
        } else {
            Object fileKey = basicFileAttributes.fileKey();

            return fileKey.toString();
        }
    } catch (Exception e) {
        _logger.error(e.getMessage(), e);

        return "";
    }
}

From source file:com.sunteng.flume.source.tail.TailFileEventReader.java

public static String getFileKey(File file) {
    BasicFileAttributes basicAttr;
    try {//from   ww w .j  a  va2s . c o m
        basicAttr = Files.readAttributes(file.toPath(), BasicFileAttributes.class);
    } catch (IOException e) {
        return new String();
    }
    Object obj = basicAttr.fileKey();
    if (obj == null) {
        return new String();
    }
    return obj.toString();
}

From source file:com.streamsets.pipeline.lib.io.LiveFile.java

/**
 * Refreshes the <code>LiveFile</code>, if the file was renamed, the path will have the new name.
 *
 * @return the refreshed file if the file has been renamed, or itself if the file has not been rename or the file
 * does not exist in the directory anymore.
 * @throws IOException thrown if the LiveFile could not be refreshed
 *///from   ww w . j a  va  2 s. c  om
public LiveFile refresh() throws IOException {
    LiveFile refresh = this;
    boolean changed;
    try {
        BasicFileAttributes attrs = Files.readAttributes(path, BasicFileAttributes.class);
        String iNodeCurrent = attrs.fileKey().toString();
        int headLenCurrent = (int) Math.min(headLen, attrs.size());
        String headHashCurrent = computeHash(path, headLenCurrent);
        changed = !this.iNode.equals(iNodeCurrent) || !this.headHash.equals(headHashCurrent);
    } catch (NoSuchFileException ex) {
        changed = true;
    }
    if (changed) {

        try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(path.getParent())) {
            for (Path path : directoryStream) {
                if (path.toFile().isDirectory()) {
                    continue;
                }
                BasicFileAttributes attrs = Files.readAttributes(path, BasicFileAttributes.class);
                String iNode = attrs.fileKey().toString();
                int headLen = (int) Math.min(this.headLen, attrs.size());
                String headHash = computeHash(path, headLen);
                if (iNode.equals(this.iNode) && headHash.equals(this.headHash)) {
                    if (headLen == 0) {
                        headLen = (int) Math.min(HEAD_LEN, attrs.size());
                        headHash = computeHash(path, headLen);
                    }
                    return new LiveFile(path, iNode, headHash, headLen);
                } /**rename??*/
            }
        }
        return null;
    } /**change? itself*/
    return refresh;
}

From source file:de.tiqsolutions.hdfs.BasicFileAttributeViewImpl.java

Map<String, Object> readAttributes(String attributes) throws IOException {
    BasicFileAttributes attr = readAttributes();
    List<String> attrlist = Arrays.asList(attributes.split(","));
    boolean readall = attrlist.contains("*");
    Map<String, Object> ret = new HashMap<>();
    if (readall || attrlist.contains("fileKey"))
        ret.put("fileKey", attr.fileKey());
    if (readall || attrlist.contains("creationTime"))
        ret.put("creationTime", attr.creationTime());
    if (readall || attrlist.contains("isDirectory"))
        ret.put("isDirectory", attr.isDirectory());
    if (readall || attrlist.contains("isOther"))
        ret.put("isOther", attr.isOther());
    if (readall || attrlist.contains("isRegularFile"))
        ret.put("isRegularFile", attr.isRegularFile());
    if (readall || attrlist.contains("isSymbolicLink"))
        ret.put("isSymbolicLink", attr.isSymbolicLink());
    if (readall || attrlist.contains("lastAccessTime"))
        ret.put("lastAccessTime", attr.lastAccessTime());
    if (readall || attrlist.contains("lastModifiedTime"))
        ret.put("lastModifiedTime", attr.lastModifiedTime());
    if (readall || attrlist.contains("size"))
        ret.put("size", attr.size());
    return ret;//from   ww w. j  a va 2 s. co m
}

From source file:com.streamsets.pipeline.lib.io.LiveFile.java

/**
 * Creates a <code>LiveFile</code> given a {@link Path}.
 *
 * @param path the Path of the LiveFile. The file referred by the Path must exist.
 * @throws IOException thrown if the LiveFile does not exist.
 *//*from w w w .jav a 2 s .c o  m*/
public LiveFile(Path path) throws IOException {
    Utils.checkNotNull(path, "path");
    this.path = path.toAbsolutePath();
    if (!Files.isRegularFile(this.path)) {
        throw new NoSuchFileException(Utils.format("Path '{}' is not a file", this.path));
    }
    BasicFileAttributes attrs = Files.readAttributes(path, BasicFileAttributes.class);
    headLen = (int) Math.min(HEAD_LEN, attrs.size());
    headHash = computeHash(path, headLen);
    iNode = attrs.fileKey().toString();
}

From source file:edu.lternet.pasta.datapackagemanager.DataPackageManagerResourceTest.java

/**
 * Test that the StorageManager has optimized the data
 * storage for two data entities with the same checksum value.
 * For this test we can use the original revision value and
 * the update revision value because we know that they have
 * the same data entity.//from   w w w  .j a va 2  s  .  c o  m
 */
private void testStorageManager() {
    HttpHeaders httpHeaders = new DummyCookieHttpHeaders(testUser);
    FileSystem fileSystem = FileSystems.getDefault();

    Response response = dataPackageManagerResource.readDataEntity(httpHeaders, testScope, testIdentifier,
            testRevision.toString(), testEntityId);
    int statusCode = response.getStatus();
    assertEquals(200, statusCode);
    File revisionDataEntity = (File) response.getEntity(); // Check the message body
    assertNotNull(revisionDataEntity);
    String revisionFilePathStr = revisionDataEntity.getAbsolutePath();
    Path revisionPath = fileSystem.getPath(revisionFilePathStr);
    System.err.println(String.format("revisionPath: %s", revisionFilePathStr));

    response = dataPackageManagerResource.readDataEntity(httpHeaders, testScope, testIdentifier,
            testUpdateRevision.toString(), testEntityId);
    statusCode = response.getStatus();
    assertEquals(200, statusCode);
    File updateRevisionDataEntity = (File) response.getEntity(); // Check the message body
    assertNotNull(updateRevisionDataEntity);
    String updateRevisionFilePathStr = updateRevisionDataEntity.getAbsolutePath();
    Path updateRevisionPath = fileSystem.getPath(updateRevisionFilePathStr);
    System.err.println(String.format("updateRevisionPath: %s", updateRevisionFilePathStr));

    response = dataPackageManagerResource.readDataEntity(httpHeaders, testScope, testIdentifier,
            testRevision.toString(), testEntityId2);
    statusCode = response.getStatus();
    assertEquals(200, statusCode);
    File revisionDataEntity2 = (File) response.getEntity(); // Check the message body
    assertNotNull(revisionDataEntity);
    String revisionFilePathStr2 = revisionDataEntity2.getAbsolutePath();
    Path revisionPath2 = fileSystem.getPath(revisionFilePathStr2);
    System.err.println(String.format("revisionPath2: %s", revisionFilePathStr2));

    response = dataPackageManagerResource.readDataEntity(httpHeaders, testScope, testIdentifier,
            testUpdateRevision.toString(), testEntityId2);
    statusCode = response.getStatus();
    assertEquals(200, statusCode);
    File updateRevisionDataEntity2 = (File) response.getEntity(); // Check the message body
    assertNotNull(updateRevisionDataEntity2);
    String updateRevisionFilePathStr2 = updateRevisionDataEntity2.getAbsolutePath();
    Path updateRevisionPath2 = fileSystem.getPath(updateRevisionFilePathStr2);
    System.err.println(String.format("updateRevisionPath2: %s", updateRevisionFilePathStr2));

    try {
        // Get the unique file keys (i.e. inodes) for the revision's data entities
        BasicFileAttributes revisionAttributes = Files.readAttributes(revisionPath, BasicFileAttributes.class);
        Object revisionKey = revisionAttributes.fileKey();
        BasicFileAttributes revisionAttributes2 = Files.readAttributes(revisionPath2,
                BasicFileAttributes.class);
        Object revisionKey2 = revisionAttributes2.fileKey();

        // Get the unique file keys (i.e. inodes) for the updated revision's data entities
        BasicFileAttributes updateRevisionAttributes = Files.readAttributes(updateRevisionPath,
                BasicFileAttributes.class);
        Object updateRevisionKey = updateRevisionAttributes.fileKey();
        BasicFileAttributes updateRevisionAttributes2 = Files.readAttributes(updateRevisionPath2,
                BasicFileAttributes.class);
        Object updateRevisionKey2 = updateRevisionAttributes2.fileKey();

        /*
         * The fileKey() method returns null on the Windows platform, so
         * this test really only works on Unix/Linux platform.
         */
        if (isWindowsPlatform) {
            assertTrue((revisionKey == null) && (updateRevisionKey == null) && (revisionKey2 == null)
                    && (updateRevisionKey2 == null));
        } else {
            assertTrue(revisionKey != null);
            assertTrue(updateRevisionKey != null);
            assertTrue(revisionKey2 != null);
            assertTrue(updateRevisionKey2 != null);
            assertTrue(revisionKey.equals(updateRevisionKey));
            assertTrue(revisionKey2.equals(updateRevisionKey2));
            assertFalse(revisionKey.equals(updateRevisionKey2));
            assertFalse(revisionKey2.equals(updateRevisionKey));
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:org.sonar.application.AppFileSystemTest.java

@CheckForNull
private static Object getFileKey(File fileInTempDir) throws IOException {
    Path path = Paths.get(fileInTempDir.toURI());
    BasicFileAttributes attrs = Files.readAttributes(path, BasicFileAttributes.class);
    return attrs.fileKey();
}