@Override
    public UsagePerPlanBean getUsagePerPlan(String organizationId, String apiId, String version,
            DateTime from, DateTime to) {
        UsagePerPlanBean rval = new UsagePerPlanBean();
        rval.getData().put("Gold", 120384L);
        rval.getData().put("Silver", 921263L);
        rval.getData().put("Platinum", 726392L);
        return rval;
    }
@see io.apiman.manager.api.core.IMetricsAccessor#getUsagePerPlan(java.lang.String, java.lang.String, java.lang.String, java.util.Date, java.util.Date)
manager/test/api/src/main/java/io/apiman/manager/test/server/TestMetricsAccessor.java