Refactor token selectors to leverage common code
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Key: MAPREDUCE-2778
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2778
Project: Hadoop Map/Reduce
Issue Type: Sub-task
Reporter: Daryn Sharp
Assignee: Daryn Sharp
Fix For: 0.20.205.0
The token selectors are copy-n-paste of each other. Need to create a base
class to hold the common code.
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