Package org.apache.hadoop.util

Examples of org.apache.hadoop.util.DataChecksum.update()

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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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            bytesSinceFlush = 0;
          }
          break;
        }
        // Update the checksum.
        sum.update(buf, bytesSinceFlush, bytesRead);
        bytesSinceFlush += bytesRead;
       
        // Flush the checksum if necessary.
        if (bytesSinceFlush == bytesPerChecksum) {
          boolean reset = true;
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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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            bytesSinceFlush = 0;
          }
          break;
        }
        // Update the checksum.
        sum.update(buf, bytesSinceFlush, bytesRead);
        bytesSinceFlush += bytesRead;
       
        // Flush the checksum if necessary.
        if (bytesSinceFlush == bytesPerChecksum) {
          boolean reset = true;
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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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            bytesPerChecksum, blockFileLen-lastChunkStartPos);
        byte[] buf = new byte[lastChunkSize+checksumSize];
        checksumIn.readFully(buf, lastChunkSize, checksumSize);
        IOUtils.readFully(blockIn, buf, 0, lastChunkSize);

        checksum.update(buf, 0, lastChunkSize);
        if (checksum.compare(buf, lastChunkSize)) { // last chunk matches crc
          return lastChunkStartPos + lastChunkSize;
        } else { // last chunck is corrupt
          return lastChunkStartPos;
        }
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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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    } finally {
      blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
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