Package org.apache.hadoop.hdfs.tools.offlineEditsViewer.Tokenizer

Examples of org.apache.hadoop.hdfs.tools.offlineEditsViewer.Tokenizer.IntToken

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   */
  private void visit_OP_ADD_or_OP_CLOSE(FSEditLogOpCodes editsOpCode)
    throws IOException {
    visitTxId();
   
    IntToken opAddLength = v.visitInt(EditsElement.LENGTH);
    // this happens if the edits is not properly ended (-1 op code),
    // it is padded at the end with all zeros, OP_ADD is zero so
    // without this check we would treat all zeros as empty OP_ADD)
    if(opAddLength.value == 0) {
      throw new IOException("OpCode " + editsOpCode +
        " has zero length (corrupted edits)");
    }   
    v.visitStringUTF8(EditsElement.PATH);
    v.visitStringUTF8(EditsElement.REPLICATION);
    v.visitStringUTF8(EditsElement.MTIME);
    v.visitStringUTF8(EditsElement.ATIME);
    v.visitStringUTF8(EditsElement.BLOCKSIZE);
    // now read blocks
    IntToken numBlocksToken = v.visitInt(EditsElement.NUMBLOCKS);
    for (int i = 0; i < numBlocksToken.value; i++) {
      v.visitEnclosingElement(EditsElement.BLOCK);

      v.visitLong(EditsElement.BLOCK_ID);
      v.visitLong(EditsElement.BLOCK_NUM_BYTES);
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  /**
   * Visit OP_CONCAT_DELETE
   */
  private void visit_OP_CONCAT_DELETE() throws IOException {
    visitTxId();
    IntToken lengthToken = v.visitInt(EditsElement.LENGTH);
    v.visitStringUTF8(EditsElement.CONCAT_TARGET);
    // all except of CONCAT_TARGET and TIMESTAMP
    int sourceCount = lengthToken.value - 2;
    for(int i = 0; i < sourceCount; i++) {
      v.visitStringUTF8(EditsElement.CONCAT_SOURCE);
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    try {
      v.start();
      v.visitEnclosingElement(EditsElement.EDITS);

      IntToken editsVersionToken = v.visitInt(EditsElement.EDITS_VERSION);
      editsVersion = editsVersionToken.value;
      if(!canLoadVersion(editsVersion)) {
        throw new IOException("Cannot process editLog version " +
          editsVersionToken.value);
      }
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   */
  private void visit_OP_ADD_or_OP_CLOSE(FSEditLogOpCodes editsOpCode)
    throws IOException {
    visitTxId();
    if (!LayoutVersion.supports(Feature.EDITLOG_OP_OPTIMIZATION, editsVersion)) {
      IntToken opAddLength = v.visitInt(EditsElement.LENGTH);
      // this happens if the edits is not properly ended (-1 op code),
      // it is padded at the end with all zeros, OP_ADD is zero so
      // without this check we would treat all zeros as empty OP_ADD)
      if (opAddLength.value == 0) {
        throw new IOException("OpCode " + editsOpCode
            + " has zero length (corrupted edits)");
      }
    }
   
    v.visitStringUTF8(EditsElement.PATH);
    if (LayoutVersion.supports(Feature.EDITLOG_OP_OPTIMIZATION, editsVersion)) {
      v.visitShort(EditsElement.REPLICATION);
      v.visitLong(EditsElement.MTIME);
      v.visitLong(EditsElement.ATIME);
      v.visitLong(EditsElement.BLOCKSIZE);
    } else {
      v.visitStringUTF8(EditsElement.REPLICATION);
      v.visitStringUTF8(EditsElement.MTIME);
      v.visitStringUTF8(EditsElement.ATIME);
      v.visitStringUTF8(EditsElement.BLOCKSIZE);
    }
    // now read blocks
    IntToken numBlocksToken = v.visitInt(EditsElement.NUMBLOCKS);
    for (int i = 0; i < numBlocksToken.value; i++) {
      v.visitEnclosingElement(EditsElement.BLOCK);

      v.visitLong(EditsElement.BLOCK_ID);
      v.visitLong(EditsElement.BLOCK_NUM_BYTES);
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   */
  private void visit_OP_CONCAT_DELETE() throws IOException {
    visitTxId();
    int sourceCount = 0;
    if (!LayoutVersion.supports(Feature.EDITLOG_OP_OPTIMIZATION, editsVersion)) {
      IntToken lengthToken = v.visitInt(EditsElement.LENGTH);
      sourceCount = lengthToken.value - 2;
    }
    v.visitStringUTF8(EditsElement.CONCAT_TARGET);
    // all except of CONCAT_TARGET and TIMESTAMP
    if (LayoutVersion.supports(Feature.EDITLOG_OP_OPTIMIZATION, editsVersion)) {
      IntToken lengthToken = v.visitInt(EditsElement.LENGTH);
      sourceCount = lengthToken.value;
    }
    for(int i = 0; i < sourceCount; i++) {
      v.visitStringUTF8(EditsElement.CONCAT_SOURCE);
    }
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    try {
      v.start();
      v.visitEnclosingElement(EditsElement.EDITS);

      IntToken editsVersionToken = v.visitInt(EditsElement.EDITS_VERSION);
      editsVersion = editsVersionToken.value;
      if(!canLoadVersion(editsVersion)) {
        throw new IOException("Cannot process editLog version " +
          editsVersionToken.value);
      }
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  /**
   * Convenience shortcut method to parse a specific token type
   */
  public IntToken visitInt(EditsElement e) throws IOException {
    return (IntToken)visit(tokenizer.read(new IntToken(e)));
  }
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  /**
   * Convenience shortcut method to parse a specific token type
   */
  public IntToken visitInt(EditsElement e) throws IOException {
    return (IntToken)visit(tokenizer.read(new IntToken(e)));
  }
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   */
  private void visit_OP_ADD_or_OP_CLOSE(FSEditLogOpCodes editsOpCode)
    throws IOException {
    visitTxId();

    IntToken opAddLength = v.visitInt(EditsElement.LENGTH);
    // this happens if the edits is not properly ended (-1 op code),
    // it is padded at the end with all zeros, OP_ADD is zero so
    // without this check we would treat all zeros as empty OP_ADD)
    if(opAddLength.value == 0) {
      throw new IOException("OpCode " + editsOpCode +
        " has zero length (corrupted edits)");
    }
    v.visitStringUTF8(EditsElement.PATH);
    v.visitStringUTF8(EditsElement.REPLICATION);
    v.visitStringUTF8(EditsElement.MTIME);
    v.visitStringUTF8(EditsElement.ATIME);
    v.visitStringUTF8(EditsElement.BLOCKSIZE);
    // now read blocks
    IntToken numBlocksToken = v.visitInt(EditsElement.NUMBLOCKS);
    for (int i = 0; i < numBlocksToken.value; i++) {
      v.visitEnclosingElement(EditsElement.BLOCK);

      v.visitLong(EditsElement.BLOCK_ID);
      v.visitLong(EditsElement.BLOCK_NUM_BYTES);
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   * Visit OP_CONCAT_DELETE
   */
  private void visit_OP_CONCAT_DELETE() throws IOException {
    visitTxId();

    IntToken lengthToken = v.visitInt(EditsElement.LENGTH);
    v.visitStringUTF8(EditsElement.CONCAT_TARGET);
    // all except of CONCAT_TARGET and TIMESTAMP
    int sourceCount = lengthToken.value - 2;
    for(int i = 0; i < sourceCount; i++) {
      v.visitStringUTF8(EditsElement.CONCAT_SOURCE);
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Related Classes of org.apache.hadoop.hdfs.tools.offlineEditsViewer.Tokenizer.IntToken

  • org.apache.hadoop.hdfs.tools.offlineEditsViewer.EditsLoaderCurrent
  • org.apache.hadoop.hdfs.tools.offlineEditsViewer.EditsVisitor
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