CodeCoverageController.cls

public class CodeCoverageController {

    public String messageUnder10 {
        get { return CodeCoverageHelper.MESSAGE_UNDER_10; }
        private set;
    }

    public String messageUnder75 {
        get { return CodeCoverageHelper.MESSAGE_UNDER_75; }
        private set;
    } 

    public String messageAbove75 {
        get { return CodeCoverageHelper.MESSAGE_ABOVE_75; }
        private set;
    }  
    
    public String[] codeCoverageMessages {
        get {
            if(codeCoverageMessages == null) codeCoverageMessages = new String[]{};
            return codeCoverageMessages;
        }
        set;
    }

    public Map<String, Decimal> codeCoverageMap {
        get {
            if(codeCoverageMap == null || codeCoverageMap.isEmpty()) {
                codeCoverageMap = CodeCoverageHelper.getCodeCoverage();
            }
            return codeCoverageMap;                
        }

        set;
    }

    public CodeCoverageController() {
        populateCodeCoverageByName();
    }

    public void populateCodeCoverageByName() {
        Map<String, Decimal> coverageMap = codeCoverageMap;
        populateCodeCoverageInfo(coverageMap);

    }

    public void populateCodeCoverageByCoverage() {
        Map<String, Decimal> coverageMap = CodeCoverageHelper.sortCodeCoverageMapByCoverage(codeCoverageMap);
        populateCodeCoverageInfo(coverageMap);
    }

    public void populateCodeCoverageInfo(Map<String, Decimal> coverageMap){
        codeCoverageMessages.clear();
   
        for(String className : coverageMap.keySet()) {
            Decimal coverage = coverageMap.get(className);
            coverage = coverage.setScale(2);

            String coverageMessage = CodeCoverageHelper.buildCodeCoverageMessage(coverage, className);
            codeCoverageMessages.add(coverageMessage);
        }
    }

}