Example usage for java.io RandomAccessFile getFD

Introduction

In this page you can find the example usage for java.io RandomAccessFile getFD.

Prototype

public final FileDescriptor getFD() throws IOException 

Source Link

Document

Returns the opaque file descriptor object associated with this stream.

Usage

From source file:org.apache.hadoop.mapred.FadvisedChunkedFile.java

public FadvisedChunkedFile(RandomAccessFile file, long position, long count, int chunkSize,
        boolean manageOsCache, int readaheadLength, ReadaheadPool readaheadPool, String identifier)
        throws IOException {
    super(file, position, count, chunkSize);
    this.manageOsCache = manageOsCache;
    this.readaheadLength = readaheadLength;
    this.readaheadPool = readaheadPool;
    this.fd = file.getFD();
    this.identifier = identifier;
}

---

From source file:org.apache.hadoop.hdfs.server.namenode.EditLogFileOutputStream.java

/**
 * Creates output buffers and file object.
 * /* w  w w.j a v a2 s  . co m*/
 * @param conf
 *          Configuration object
 * @param name
 *          File name to store edit log
 * @param size
 *          Size of flush buffer
 * @throws IOException
 */
public EditLogFileOutputStream(Configuration conf, File name, int size) throws IOException {
    super();
    shouldSyncWritesAndSkipFsync = conf.getBoolean(DFSConfigKeys.DFS_NAMENODE_EDITS_NOEDITLOGCHANNELFLUSH,
            DFSConfigKeys.DFS_NAMENODE_EDITS_NOEDITLOGCHANNELFLUSH_DEFAULT);

    file = name;
    doubleBuf = new EditsDoubleBuffer(size);
    RandomAccessFile rp;
    if (shouldSyncWritesAndSkipFsync) {
        rp = new RandomAccessFile(name, "rws");
    } else {
        rp = new RandomAccessFile(name, "rw");
    }
    fp = new FileOutputStream(rp.getFD()); // open for append
    fc = rp.getChannel();
    fc.position(fc.size());
}

---

From source file:fr.gael.dhus.server.ftp.DHuSFtpProduct.java

@Override
public InputStream createInputStream(long offset) throws IOException {
    File file = new File(product.getDownloadablePath());
    logger.debug("Retrieving File stream from " + file.getPath());
    /*//from  www . ja  va  2 s  .c  om
    return new FileInputStream(file);
    */
    // permission check
    if (!doesExist()) {
        throw new IOException("No read permission : " + file.getName());
    }

    // move to the appropriate offset and create input stream
    final RandomAccessFile raf = new RandomAccessFile(file, "r");
    try {
        raf.seek(offset);
        // The IBM jre needs to have both the stream and the random access file
        // objects closed to actually close the file
        return new RegulatedInputStream.Builder(new FileInputStream(raf.getFD()) {
            public void close() throws IOException {
                super.close();
                raf.close();
            }
        }, TrafficDirection.OUTBOUND).userName(user.getName())
                .copyStreamListener(new DownloadActionRecordListener(product.getUuid(), product.getIdentifier(),
                        vfsService.getDhusUserFromFtpUser(user)))
                .build();
    } catch (IOException e) {
        raf.close();
        throw e;
    }
}

---

From source file:org.apache.hadoop.mapred.FadvisedFileRegion.java

public FadvisedFileRegion(RandomAccessFile file, long position, long count, boolean manageOsCache,
        int readaheadLength, ReadaheadPool readaheadPool, String identifier, int shuffleBufferSize,
        boolean shuffleTransferToAllowed) throws IOException {
    super(file.getChannel(), position, count);
    this.manageOsCache = manageOsCache;
    this.readaheadLength = readaheadLength;
    this.readaheadPool = readaheadPool;
    this.fd = file.getFD();
    this.identifier = identifier;
    this.fileChannel = file.getChannel();
    this.count = count;
    this.position = position;
    this.shuffleBufferSize = shuffleBufferSize;
    this.shuffleTransferToAllowed = shuffleTransferToAllowed;
}

---

From source file:org.apache.hadoop.hdfs.tools.offlineImageViewer.LsrPBImage.java

public void visit(RandomAccessFile file) throws IOException {
    if (!FSImageUtil.checkFileFormat(file)) {
        throw new IOException("Unrecognized FSImage");
    }/*from   w ww  .  jav a  2  s.co m*/

    FileSummary summary = FSImageUtil.loadSummary(file);
    FileInputStream fin = null;
    try {
        fin = new FileInputStream(file.getFD());

        ArrayList<FileSummary.Section> sections = Lists.newArrayList(summary.getSectionsList());
        Collections.sort(sections, new Comparator<FileSummary.Section>() {
            @Override
            public int compare(FileSummary.Section s1, FileSummary.Section s2) {
                SectionName n1 = SectionName.fromString(s1.getName());
                SectionName n2 = SectionName.fromString(s2.getName());
                if (n1 == null) {
                    return n2 == null ? 0 : -1;
                } else if (n2 == null) {
                    return -1;
                } else {
                    return n1.ordinal() - n2.ordinal();
                }
            }
        });

        for (FileSummary.Section s : sections) {
            fin.getChannel().position(s.getOffset());
            InputStream is = FSImageUtil.wrapInputStreamForCompression(conf, summary.getCodec(),
                    new BufferedInputStream(new LimitInputStream(fin, s.getLength())));

            switch (SectionName.fromString(s.getName())) {
            case STRING_TABLE:
                loadStringTable(is);
                break;
            case INODE:
                loadINodeSection(is);
                break;
            case INODE_REFERENCE:
                loadINodeReferenceSection(is);
                break;
            case INODE_DIR:
                loadINodeDirectorySection(is);
                break;
            default:
                break;
            }
        }
        list("", INodeId.ROOT_INODE_ID);
    } finally {
        IOUtils.cleanup(null, fin);
    }
}

---

From source file:org.apache.flume.channel.file.TestEventQueueBackingStoreFactory.java

@Test(expected = BadCheckpointException.class)
public void testCheckpointVersionNotEqualToMeta() throws Exception {
    RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
    try {//from  www.ja  v a  2s  .  co  m
        EventQueueBackingStore backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
        backingStore.close();
        writer.seek(EventQueueBackingStoreFile.INDEX_VERSION * Serialization.SIZE_OF_LONG);
        writer.writeLong(2L);
        writer.getFD().sync();
        backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
    } finally {
        writer.close();
    }
}

---

From source file:org.wso2.carbon.apimgt.everywhere.startup.publisher.APIManagerStartupPublisher.java

private InputStream getImageInputStream(String imageAbsolutePath) throws IOException {
    RandomAccessFile file1 = new RandomAccessFile(imageAbsolutePath, "r");
    return new FileInputStream(file1.getFD());
}

---

From source file:org.apache.flume.channel.file.TestEventQueueBackingStoreFactory.java

@Test(expected = BadCheckpointException.class)
public void testCheckpointBadVersion() throws Exception {
    RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
    try {/* w  ww  .  j  a  va2  s .c o m*/
        EventQueueBackingStore backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
        backingStore.close();
        writer.seek(EventQueueBackingStoreFile.INDEX_VERSION * Serialization.SIZE_OF_LONG);
        writer.writeLong(94L);
        writer.getFD().sync();

        backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
    } finally {
        writer.close();
    }
}

---

From source file:org.apache.flume.channel.file.TestEventQueueBackingStoreFactory.java

@Test(expected = BadCheckpointException.class)
public void testCheckpointOrderIdNotEqualToMeta() throws Exception {
    RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
    try {/*from   w  w  w.  ja va2s .c om*/
        EventQueueBackingStore backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
        backingStore.close();
        writer.seek(EventQueueBackingStoreFile.INDEX_WRITE_ORDER_ID * Serialization.SIZE_OF_LONG);
        writer.writeLong(2L);
        writer.getFD().sync();
        backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
    } finally {
        writer.close();
    }
}

---

From source file:org.apache.flume.channel.file.TestEventQueueBackingStoreFactory.java

@Test(expected = BadCheckpointException.class)
public void testIncompleteCheckpoint() throws Exception {
    RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");

    try {/*from   w w w . jav a2  s  .  c o m*/
        EventQueueBackingStore backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
        backingStore.close();
        writer.seek(EventQueueBackingStoreFile.INDEX_CHECKPOINT_MARKER * Serialization.SIZE_OF_LONG);
        writer.writeLong(EventQueueBackingStoreFile.CHECKPOINT_INCOMPLETE);
        writer.getFD().sync();
        backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
    } finally {
        writer.close();
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• »