To get report data, call the method $dashboardProcessor.getReportData() with the fully qualified report name or the variable that contains the name. For example,
#set($report1Data = $dashboardProcessor.getReportData($report1))
#set($report2Data = $dashboardProcessor.getReportData('/My Reports/Entity Distribution by Criticality'))
Normally, a report returns a list of lists for most types of reports.