tree 02c65702565e2ba4abcc36c34ff411ac8f7a782b
parent bce1888eebdda3e306203d68c0c769a71dae739e
author Till Westmann <tillw@apache.org> 1468897839 -0700
committer Till Westmann <tillw@apache.org> 1468947208 -0700

some pretty printing refactoring/cleanup

- introduce AlgebricksAppendable
- use AlgebricksAppendable instead of PrintWriter and StringBuilder for plan
  printing
- avoid creation of intermediate strings for each Operator
- only log plans in the optimizer if the log-level requires it
- change param to indent output JSON from INDENT to PRETTY

Change-Id: Ied0203adc51e9710690ace74fe1e152eb7a716e8
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1004
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>