Package org.apache.hadoop.util

Examples of org.apache.hadoop.util.PureJavaCrc32

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    @SuppressWarnings("deprecation")
    public Reader(DataInputStream in, StreamLimiter limiter,
        int logVersion) {
      this.logVersion = logVersion;
      if (LayoutVersion.supports(Feature.EDITS_CHESKUM, logVersion)) {
        this.checksum = new PureJavaCrc32();
      } else {
        this.checksum = null;
      }

      if (this.checksum != null) {
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    private final DataOutputBuffer buf;
    private final Checksum checksum;

    public Writer(DataOutputBuffer out) {
      this.buf = out;
      this.checksum = new PureJavaCrc32();
    }
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    private final DataOutputBuffer buf;
    private final Checksum checksum;

    public Writer(DataOutputBuffer out) {
      this.buf = out;
      this.checksum = new PureJavaCrc32();
    }
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     */
    @SuppressWarnings("deprecation")
    public Reader(DataInputStream in, int logVersion) {
      this.logVersion = logVersion;
      if (LayoutVersion.supports(Feature.EDITS_CHESKUM, logVersion)) {
        this.checksum = new PureJavaCrc32();
      } else {
        this.checksum = null;
      }

      if (this.checksum != null) {
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    return value;
  }

  private DFSOutputStream(DFSClient dfsClient, String src, long blockSize, Progressable progress,
      int bytesPerChecksum, short replication) throws IOException {
    super(new PureJavaCrc32(), bytesPerChecksum, 4);
    this.dfsClient = dfsClient;
    this.conf = dfsClient.conf;
    this.src = src;
    this.blockSize = blockSize;
    this.blockReplication = replication;
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        byte[] version = new byte[CHECKSUM_VERSION.length];
        sums.readFully(version);
        if (!Arrays.equals(version, CHECKSUM_VERSION))
          throw new IOException("Not a checksum file: "+sumFile);
        this.bytesPerSum = sums.readInt();
        set(fs.verifyChecksum, new PureJavaCrc32(), bytesPerSum, 4);
      } catch (FileNotFoundException e) {         // quietly ignore
        set(fs.verifyChecksum, null, 1, 0);
      } catch (IOException e) {                   // loudly ignore
        LOG.warn("Problem opening checksum file: "+ file +
                 ".  Ignoring exception: " +
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                          int bufferSize,
                          short replication,
                          long blockSize,
                          Progressable progress)
      throws IOException {
      super(new PureJavaCrc32(), fs.getBytesPerSum(), 4);
      int bytesPerSum = fs.getBytesPerSum();
      this.datas = fs.getRawFileSystem().create(file, overwrite, bufferSize,
                                         replication, blockSize, progress);
      int sumBufferSize = fs.getSumBufferSize(bytesPerSum, bufferSize);
      this.sums = fs.getRawFileSystem().create(fs.getChecksumFile(file), true,
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        sums.readFully(version);
        if (!Arrays.equals(version, CHECKSUM_VERSION)) {
          throw new IOException("Not a checksum file: "+sumFile);
        }
        this.bytesPerSum = sums.readInt();
        set(fs.verifyChecksum, new PureJavaCrc32(), bytesPerSum, 4);
      } catch (FileNotFoundException e) {         // quietly ignore
        set(fs.verifyChecksum, null, 1, 0);
      } catch (IOException e) {                   // loudly ignore
        LOG.warn("Problem opening checksum file: "+ file +
                 ".  Ignoring exception: " +
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      final EnumSet<CreateFlag> createFlag,
      final FsPermission absolutePermission, final int bufferSize,
      final short replication, final long blockSize,
      final Progressable progress, final int bytesPerChecksum,
      final boolean createParent) throws IOException {
      super(new PureJavaCrc32(), fs.getBytesPerSum(), 4);

      this.datas = fs.getRawFs().createInternal(file, createFlag,
          absolutePermission, bufferSize, replication, blockSize, progress,
           bytesPerChecksum,  createParent);
     
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        numPartitions * MapTask.MAP_OUTPUT_INDEX_RECORD_LENGTH);
    entries = buf.asLongBuffer();
  }

  public SpillRecord(Path indexFileName, JobConf job) throws IOException {
    this(indexFileName, job, new PureJavaCrc32());
  }
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Related Classes of org.apache.hadoop.util.PureJavaCrc32

  • org.apache.hadoop.examples.terasort.GenSort
  • org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker
  • org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer
  • org.apache.hadoop.fs.ChecksumFs$ChecksumFSInputChecker
  • org.apache.hadoop.fs.ChecksumFs$ChecksumFSOutputSummer
  • org.apache.hadoop.hdfs.BlockReader
  • org.apache.hadoop.hdfs.BlockReaderAccelerator
  • org.apache.hadoop.hdfs.DFSClient$BlockReader
  • org.apache.hadoop.hdfs.DFSClient$DFSOutputStream
  • org.apache.hadoop.hdfs.DFSOutputStream
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