Github user goi commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/164#issuecomment-124600512
I have refactor the code as suggested. just one note, I dropped the line:
```
if (msg.startsWith(magic + " ") || msg.startsWith(magic + "\n")) {
```
in the suggested buildIndexMap as my understanding is that the msg can
start with any text not just magic word.
All tests passed successfully.
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