[jira] [Created] (HDFS-7549) Add GenericTestUtils#disableLog, GenericTestUtils#setLogLevel

["Colin Patrick McCabe (JIRA)" <ji...@apache.org>]

Colin Patrick McCabe created HDFS-7549:
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             Summary: Add GenericTestUtils#disableLog, GenericTestUtils#setLogLevel
                 Key: HDFS-7549
                 URL: https://issues.apache.org/jira/browse/HDFS-7549
             Project: Hadoop HDFS
          Issue Type: Improvement
    Affects Versions: 2.7.0
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe


Now that we are using both commons-logging and slf4j, we can no longer rely on just casting the Log object to a {{Log4JLogger}} and calling {{setLevel}} on that.  With {{org.slf4j.Logger}} objects, we need to look up the underlying {{Log4JLogger}} using {{LogManager#getLogger}}.

This patch adds {{GenericTestUtils#disableLog}} and {{GenericTestUtils#setLogLevel}} functions which hide this complexity from unit tests, just allowing the tests to call {{disableLog}} or {{setLogLevel}}, and have {{GenericTestUtils}} figure out the right thing to do based on the log / logger type.



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