[PARQUET-1921] Use StringBuilder instead of StringBuffer

• Type: Improvement
• Status: Open
• Priority: Trivial
• Resolution: Unresolved
• Component/s: parquet-mr
• Labels: n00b newbe noob
• Assignee: Unassigned
• Reporter: David Mollitor
• Created: 08/Oct/20 16:31
• Updated: 23/Jun/24 03:31

Description

MessageTypeParser.java

    private StringBuffer currentLine = new StringBuffer();

    ....

    public String nextToken() {
      while (st.hasMoreTokens()) {
        String t = st.nextToken();
        if (t.equals("\n")) {
          ++ line;
          currentLine.setLength(0);
        } else {
          currentLine.append(t);
        }
        if (!isWhitespace(t)) {
          return t;
        }
      }
      throw new IllegalArgumentException("unexpected end of schema");
    }

Use StringBuilder instead of StringBuffer as StringBuffer is synchronized (which is not required here).