[HADOOP-9247] parametrize Clover "generateXxx" properties to make them re-definable via -D in mvn calls

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 0.23.6, 3.0.0-alpha1
• Fix Version/s: 2.0.3-alpha, 0.23.7
• Hadoop Flags: Reviewed
• Assignee: Ivan A. Veselovsky
• Reporter: Ivan A. Veselovsky
• Created: 25/Jan/13 14:24
• Updated: 12/May/16 18:26
• Resolved: 25/Jan/13 20:54

Description

The suggested parametrization is needed in order
to be able to re-define these properties with "-Dk=v" maven options.
For some reason the expressions declared in clover
docs like "${maven.clover.generateHtml}" (see http://docs.atlassian.com/maven-clover2-plugin/3.0.2/clover-mojo.html) do not work in that way.
However, the parametrized properties are confirmed to work: e.g.
-DcloverGenHtml=false switches off the Html generation, if defined <generateHtml>${cloverGenHtml}</generateHtml>.

The default values provided here exactly correspond to Clover defaults, so
the behavior is 100% backwards compatible.