Reuse Sonar Checkstyle Violation Report for Custom Data Analysis

1. Write a violation rules file;

2. Import it into Sonar as a Quality Profile named as "MyRules";

3. Add the following properties to ant script:

4. Run Ant script, and you can get the report at $PROJECT_HOME/.sonar/checkstyle-result.xml;

5. Use the following python script to extract data from the report:

   from xml.etree import ElementTree as ET
   tree = ET.parse('/path/to/checkstyle-result.xml')
   root = tree.getroot()
   cycleCnt = 0
   nestCnt = 0
   for error in root.iter('error'):
   msg = error.get('message')
   if msg.startswith('Cyclomatic'):
   cycleCnt += 1
   if msg.startswith('Nested'):
   nestCnt += 1
   print "Cyclomatic:",cycleCnt,"Nested:",nestCnt

See "Section 19.7: xml.etree.ElementTree" of documentation of Python 2.7.5 for details.