// -------------------------------------------------------------------------
private EngineResourceReference<SingleComputationCycle> createCycle(
ViewCycleExecutionOptions executionOptions,
CompiledViewDefinitionWithGraphsImpl compiledViewDefinition,
VersionCorrection versionCorrection) {
// View definition was compiled based on compilation options, which might have only included an
// indicative
// valuation time. A further check ensures that the compiled view definition is still valid.
if (!compiledViewDefinition.isValidFor(executionOptions.getValuationTime())) {
throw new OpenGammaRuntimeException(
"Compiled view definition "
+ compiledViewDefinition
+ " not valid for execution options "
+ executionOptions);
}
UniqueId cycleId = getViewProcess().generateCycleId();
ComputationResultListener streamingResultListener =
new ComputationResultListener() {
@Override
public void resultAvailable(ViewComputationResultModel result) {
cycleFragmentCompleted(result);
}
};
SingleComputationCycle cycle =
new SingleComputationCycle(
cycleId,
getViewProcess().getUniqueId(),
streamingResultListener,
getProcessContext(),
compiledViewDefinition,
executionOptions,
versionCorrection);
return getCycleManager().manage(cycle);
}
private CompiledViewDefinitionWithGraphsImpl getCompiledViewDefinition(
Instant valuationTime, VersionCorrection versionCorrection) {
long functionInitId =
getProcessContext()
.getFunctionCompilationService()
.getFunctionCompilationContext()
.getFunctionInitId();
CompiledViewDefinitionWithGraphsImpl compiledViewDefinition;
updateViewDefinitionIfRequired();
if (_compilationDirty) {
_compilationDirty = false;
invalidateCachedCompiledViewDefinition();
compiledViewDefinition = null;
} else {
compiledViewDefinition = getCachedCompiledViewDefinition();
}
if (compiledViewDefinition != null
&& compiledViewDefinition.isValidFor(valuationTime)
&& functionInitId == compiledViewDefinition.getFunctionInitId()) {
// Existing cached model is valid (an optimisation for the common case of similar, increasing
// valuation times)
return compiledViewDefinition;
}
try {
MarketDataAvailabilityProvider availabilityProvider =
getMarketDataProvider().getAvailabilityProvider();
ViewCompilationServices compilationServices =
getProcessContext().asCompilationServices(availabilityProvider);
compiledViewDefinition =
ViewDefinitionCompiler.compile(
_viewDefinition, compilationServices, valuationTime, versionCorrection);
if (isTerminated()) {
return compiledViewDefinition; // [PLAT-1904] If we can't terminate the compilation at least
// avoid doing the subscribe etc.
}
} catch (Exception e) {
String message =
MessageFormat.format(
"Error compiling view definition {0} for time {1}",
getViewProcess().getDefinitionId(), valuationTime);
viewDefinitionCompilationFailed(valuationTime, new OpenGammaRuntimeException(message, e));
throw new OpenGammaRuntimeException(message, e);
}
setCachedCompiledViewDefinition(compiledViewDefinition);
// [PLAT-984]
// Assume that valuation times are increasing in real-time towards the expiry of the view
// definition, so that we
// can predict the time to expiry. If this assumption is wrong then the worst we do is trigger
// an unnecessary
// cycle. In the predicted case, we trigger a cycle on expiry so that any new market data
// subscriptions are made
// straight away.
if (compiledViewDefinition.getValidTo() != null) {
Duration durationToExpiry =
getMarketDataProvider()
.getRealTimeDuration(valuationTime, compiledViewDefinition.getValidTo());
long expiryNanos = System.nanoTime() + durationToExpiry.toNanosLong();
_compilationExpiryCycleTrigger.set(expiryNanos, ViewCycleTriggerResult.forceFull());
} else {
_compilationExpiryCycleTrigger.reset();
}
// Notify the view that a (re)compilation has taken place before going on to do any
// time-consuming work.
// This might contain enough for clients to e.g. render an empty grid in which results will
// later appear.
viewDefinitionCompiled(compiledViewDefinition);
// Update the market data subscriptions to whatever is now required, ensuring the computation
// cycle can find the
// required input data when it is executed.
setMarketDataSubscriptions(compiledViewDefinition.getMarketDataRequirements().keySet());
return compiledViewDefinition;
}
