try {
SummaryPersistenceManager spm = SummaryPersistenceManager.getInstance();
QuarterDimension qd = spm.getQuarterDimension(loQuarter);
if (qd == null) {
spm.addQuarterDimension(loQuarter);
qd = spm.getQuarterDimension(loQuarter);
}
MediationSummaryStatistic stat = spm.getProxyServiceStatQuarterlySummary(getServer().getId(),
getProxyService().getName(), getProxyService().getDirection(), loQuarter, hiQuarter);