How to use

getInstance

method

in

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$DeleteOp

/** 
 * Add delete file record to edit log
 */
void logDelete(String src, long timestamp, boolean toLogRpcIds) {
 DeleteOp op = DeleteOp.getInstance(cache.get())
  .setPath(src)
  .setTimestamp(timestamp);
 logRpcIds(op, toLogRpcIds);
 logEdit(op);
}

/** 
 * Add delete file record to edit log
 */
void logDelete(String src, long timestamp, boolean toLogRpcIds) {
 DeleteOp op = DeleteOp.getInstance(cache.get())
  .setPath(src)
  .setTimestamp(timestamp);
 logRpcIds(op, toLogRpcIds);
 logEdit(op);
}

@Override
public void addTransactionsToLog(EditLogOutputStream elos,
  OpInstanceCache cache) throws IOException {
 for (long txid = 1; txid <= MAX_TXID; txid++) {
  if (txid == BAD_TXID) {
   byte garbage[] = { 0x1, 0x2, 0x3 };
   elos.writeRaw(garbage, 0, garbage.length);
  }
  else {
   DeleteOp op;
   op = DeleteOp.getInstance(cache);
   op.setTransactionId(txid);
   op.setPath("/foo." + txid);
   op.setTimestamp(txid);
   elos.write(op);
  }
 }
}

/** 
 * Add delete file record to edit log
 */
public void logDelete(String src, long timestamp) {
 DeleteOp op = DeleteOp.getInstance();
 op.set(src, timestamp);
 logEdit(op);
}

static void addDeleteOpcode(EditLogOutputStream elos,
   OpInstanceCache cache, long txId, String path) throws IOException {
 DeleteOp op = DeleteOp.getInstance(cache);
 op.setTransactionId(txId);
 op.setPath(path);
 op.setTimestamp(0);
 elos.write(op);
}

/** 
 * Add delete file record to edit log
 */
void logDelete(String src, long timestamp, boolean toLogRpcIds) {
 DeleteOp op = DeleteOp.getInstance(cache.get())
  .setPath(src)
  .setTimestamp(timestamp);
 logRpcIds(op, toLogRpcIds);
 logEdit(op);
}