public LinkedHashMap<NamedWindowConsumerView, NamedWindowDeltaData> getDeltaPerConsumer(
Object perStmtObj, EPStatementAgentInstanceHandle handle) {
List<NamedWindowConsumerDispatchUnit> list = (List<NamedWindowConsumerDispatchUnit>) perStmtObj;
LinkedHashMap<NamedWindowConsumerView, NamedWindowDeltaData> deltaPerConsumer =
new LinkedHashMap<NamedWindowConsumerView, NamedWindowDeltaData>();
for (NamedWindowConsumerDispatchUnit unit : list) // for each unit
{
for (NamedWindowConsumerView consumerView : unit.getDispatchTo().get(handle)) // each consumer
{
NamedWindowDeltaData deltaForConsumer = deltaPerConsumer.get(consumerView);
if (deltaForConsumer == null) {
deltaPerConsumer.put(consumerView, unit.getDeltaData());
} else {
NamedWindowDeltaData aggregated =
new NamedWindowDeltaData(deltaForConsumer, unit.getDeltaData());
deltaPerConsumer.put(consumerView, aggregated);
}
}
}
return deltaPerConsumer;
}
private void processDispatches(
ExprEvaluatorContext exprEvaluatorContext, NamedWindowConsumerDispatchUnit[] dispatches) {
if (dispatches.length == 1) {
NamedWindowConsumerDispatchUnit unit = dispatches[0];
EventBean[] newData = unit.getDeltaData().getNewData();
EventBean[] oldData = unit.getDeltaData().getOldData();
if (MetricReportingPath.isMetricsEnabled) {
for (Map.Entry<EPStatementAgentInstanceHandle, List<NamedWindowConsumerView>> entry :
unit.getDispatchTo().entrySet()) {
EPStatementAgentInstanceHandle handle = entry.getKey();
if (handle.getStatementHandle().getMetricsHandle().isEnabled()) {
long cpuTimeBefore = MetricUtil.getCPUCurrentThread();
long wallTimeBefore = MetricUtil.getWall();
processHandle(handle, entry.getValue(), newData, oldData, exprEvaluatorContext);
long wallTimeAfter = MetricUtil.getWall();
long cpuTimeAfter = MetricUtil.getCPUCurrentThread();
long deltaCPU = cpuTimeAfter - cpuTimeBefore;
long deltaWall = wallTimeAfter - wallTimeBefore;
metricReportingService.accountTime(
handle.getStatementHandle().getMetricsHandle(), deltaCPU, deltaWall, 1);
} else {
processHandle(handle, entry.getValue(), newData, oldData, exprEvaluatorContext);
}
if ((isPrioritized) && (handle.isPreemptive())) {
break;
}
}
} else {
for (Map.Entry<EPStatementAgentInstanceHandle, List<NamedWindowConsumerView>> entry :
unit.getDispatchTo().entrySet()) {
EPStatementAgentInstanceHandle handle = entry.getKey();
processHandle(handle, entry.getValue(), newData, oldData, exprEvaluatorContext);
if ((isPrioritized) && (handle.isPreemptive())) {
break;
}
}
}
return;
}
// Multiple different-result dispatches to same or different statements are needed in two
// situations:
// a) an event comes in, triggers two insert-into statements inserting into the same named
// window and the window produces 2 results
// b) a time batch is grouped in the named window, and a timer fires for both groups at the same
// time producing more then one result
// c) two on-merge/update/delete statements fire for the same arriving event each updating the
// named window
// Most likely all dispatches go to different statements since most statements are not joins of
// named windows that produce results at the same time. Therefore sort by statement handle.
Map<EPStatementAgentInstanceHandle, Object> dispatchesPerStmt = dispatchesPerStmtTL.get();
for (NamedWindowConsumerDispatchUnit unit : dispatches) {
for (Map.Entry<EPStatementAgentInstanceHandle, List<NamedWindowConsumerView>> entry :
unit.getDispatchTo().entrySet()) {
EPStatementAgentInstanceHandle handle = entry.getKey();
Object perStmtObj = dispatchesPerStmt.get(handle);
if (perStmtObj == null) {
dispatchesPerStmt.put(handle, unit);
} else if (perStmtObj instanceof List) {
List<NamedWindowConsumerDispatchUnit> list =
(List<NamedWindowConsumerDispatchUnit>) perStmtObj;
list.add(unit);
} else // convert from object to list
{
NamedWindowConsumerDispatchUnit unitObj = (NamedWindowConsumerDispatchUnit) perStmtObj;
List<NamedWindowConsumerDispatchUnit> list =
new ArrayList<NamedWindowConsumerDispatchUnit>();
list.add(unitObj);
list.add(unit);
dispatchesPerStmt.put(handle, list);
}
}
}
// Dispatch - with or without metrics reporting
if (MetricReportingPath.isMetricsEnabled) {
for (Map.Entry<EPStatementAgentInstanceHandle, Object> entry : dispatchesPerStmt.entrySet()) {
EPStatementAgentInstanceHandle handle = entry.getKey();
Object perStmtObj = entry.getValue();
// dispatch of a single result to the statement
if (perStmtObj instanceof NamedWindowConsumerDispatchUnit) {
NamedWindowConsumerDispatchUnit unit = (NamedWindowConsumerDispatchUnit) perStmtObj;
EventBean[] newData = unit.getDeltaData().getNewData();
EventBean[] oldData = unit.getDeltaData().getOldData();
if (handle.getStatementHandle().getMetricsHandle().isEnabled()) {
long cpuTimeBefore = MetricUtil.getCPUCurrentThread();
long wallTimeBefore = MetricUtil.getWall();
processHandle(
handle, unit.getDispatchTo().get(handle), newData, oldData, exprEvaluatorContext);
long wallTimeAfter = MetricUtil.getWall();
long cpuTimeAfter = MetricUtil.getCPUCurrentThread();
long deltaCPU = cpuTimeAfter - cpuTimeBefore;
long deltaWall = wallTimeAfter - wallTimeBefore;
metricReportingService.accountTime(
handle.getStatementHandle().getMetricsHandle(), deltaCPU, deltaWall, 1);
} else {
Map<EPStatementAgentInstanceHandle, List<NamedWindowConsumerView>> entries =
unit.getDispatchTo();
List<NamedWindowConsumerView> items = entries.get(handle);
if (items != null) {
processHandle(handle, items, newData, oldData, exprEvaluatorContext);
}
}
if ((isPrioritized) && (handle.isPreemptive())) {
break;
}
continue;
}
// dispatch of multiple results to a the same statement, need to aggregate per consumer view
LinkedHashMap<NamedWindowConsumerView, NamedWindowDeltaData> deltaPerConsumer =
getDeltaPerConsumer(perStmtObj, handle);
if (handle.getStatementHandle().getMetricsHandle().isEnabled()) {
long cpuTimeBefore = MetricUtil.getCPUCurrentThread();
long wallTimeBefore = MetricUtil.getWall();
processHandleMultiple(handle, deltaPerConsumer, exprEvaluatorContext);
long wallTimeAfter = MetricUtil.getWall();
long cpuTimeAfter = MetricUtil.getCPUCurrentThread();
long deltaCPU = cpuTimeAfter - cpuTimeBefore;
long deltaWall = wallTimeAfter - wallTimeBefore;
metricReportingService.accountTime(
handle.getStatementHandle().getMetricsHandle(), deltaCPU, deltaWall, 1);
} else {
processHandleMultiple(handle, deltaPerConsumer, exprEvaluatorContext);
}
if ((isPrioritized) && (handle.isPreemptive())) {
break;
}
}
} else {
for (Map.Entry<EPStatementAgentInstanceHandle, Object> entry : dispatchesPerStmt.entrySet()) {
EPStatementAgentInstanceHandle handle = entry.getKey();
Object perStmtObj = entry.getValue();
// dispatch of a single result to the statement
if (perStmtObj instanceof NamedWindowConsumerDispatchUnit) {
NamedWindowConsumerDispatchUnit unit = (NamedWindowConsumerDispatchUnit) perStmtObj;
EventBean[] newData = unit.getDeltaData().getNewData();
EventBean[] oldData = unit.getDeltaData().getOldData();
processHandle(
handle, unit.getDispatchTo().get(handle), newData, oldData, exprEvaluatorContext);
if ((isPrioritized) && (handle.isPreemptive())) {
break;
}
continue;
}
// dispatch of multiple results to a the same statement, need to aggregate per consumer view
LinkedHashMap<NamedWindowConsumerView, NamedWindowDeltaData> deltaPerConsumer =
getDeltaPerConsumer(perStmtObj, handle);
processHandleMultiple(handle, deltaPerConsumer, exprEvaluatorContext);
if ((isPrioritized) && (handle.isPreemptive())) {
break;
}
}
}
dispatchesPerStmt.clear();
return;
}
