KYLIN-3314 refactor code for cube planner algorithm

[kyotoYaho]

Signed-off-by: Zhong nju_yaho@apache.org

[coveralls]

Pull Request Test Coverage Report for Build 3087

• 0 of 144 (0.0%) changed or added relevant lines in 13 files are covered.
• 18 unchanged lines in 6 files lost coverage.
• Overall coverage increased (+0.09%) to 23.965%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/generic/RouletteWheelSelection.java	0	1	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/AbstractRecommendAlgorithm.java	0	2	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/CuboidBenefitModel.java	0	2	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/SPBPUSCalculator.java	0	3	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/generic/BitsMutation.java	0	4	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/PBPUSCalculator.java	0	6	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/generic/BitsOnePointCrossover.java	0	6	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/CuboidStats.java	0	8	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/greedy/GreedyAlgorithm.java	0	13	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/generic/GeneticAlgorithm.java	0	17	0.0%

Files with Coverage Reduction	New Missed Lines	%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/TreeCuboidScheduler.java	1	68.5%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/greedy/GreedyAlgorithm.java	1	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/generic/BitsChromosome.java	2	0.0%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/BPUSCalculator.java	3	0.0%
core-cube/src/main/java/org/apache/kylin/cube/inmemcubing/MemDiskStore.java	4	78.12%
core-cube/src/main/java/org/apache/kylin/cube/cuboid/algorithm/generic/GeneticAlgorithm.java	7	0.0%

Totals
Change from base Build 3078:	0.09%
Covered Lines:	14340
Relevant Lines:	59838

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💛 - Coveralls

[lidongsjtu]

LGTM