//Helper method to call from GetExistingInstanceContext
//returns true : If InstanceContext is found in cache & guaranteed to stay in cache until ReleaseReference is called.
//returns false : If InstanceContext is not found in cache;
// reference & slot is created for the ID;
// InitializeInstanceContext to call AddInstanceContext.
public bool TryGetInstanceContext(Guid instanceId, out InstanceContext instanceContext)
{
ContextItem contextItem;
instanceContext = null;
int referenceCount = -1;
try
{
lock (lockObject)
{
if (!contextCache.TryGetValue(instanceId, out contextItem))
{
contextItem = new ContextItem(instanceId);
referenceCount = contextItem.AddReference();
contextCache.Add(instanceId, contextItem);
return(false);
}
referenceCount = contextItem.AddReference();
}
}
finally
{
if (DiagnosticUtility.ShouldTraceInformation)
{
string traceText = SR2.GetString(SR2.DurableInstanceRefCountToInstanceContext, instanceId, referenceCount);
TraceUtility.TraceEvent(TraceEventType.Information,
TraceCode.InstanceContextBoundToDurableInstance, SR.GetString(SR.TraceCodeInstanceContextBoundToDurableInstance),
new StringTraceRecord("InstanceDetail", traceText),
this, null);
}
}
instanceContext = contextItem.InstanceContext;
return(true);
}
public void AddInstanceContext(Guid instanceId, InstanceContext instanceContext)
{
ContextItem contextItem;
int? referenceCount = null;
lock (lockObject)
{
if (!contextCache.TryGetValue(instanceId, out contextItem))
{
//This will be the case for activation request.
contextItem = new ContextItem(instanceId);
referenceCount = contextItem.AddReference();
contextCache.Add(instanceId, contextItem);
}
}
contextItem.InstanceContext = instanceContext;
if (DiagnosticUtility.ShouldTraceInformation && referenceCount.HasValue)
{
string traceText = SR2.GetString(SR2.DurableInstanceRefCountToInstanceContext, instanceId, referenceCount.Value);
TraceUtility.TraceEvent(TraceEventType.Information,
TraceCode.InstanceContextBoundToDurableInstance, SR.GetString(SR.TraceCodeInstanceContextBoundToDurableInstance),
new StringTraceRecord("InstanceDetail", traceText),
this, null);
}
}
//Helper method to call from GetExistingInstanceContext
//returns true : If InstanceContext is found in cache & guaranteed to stay in cache until ReleaseReference is called.
//returns false : If InstanceContext is not found in cache;
// reference & slot is created for the ID;
// InitializeInstanceContext to call AddInstanceContext.
public bool TryGetInstanceContext(Guid instanceId, out InstanceContext instanceContext)
{
ContextItem contextItem;
instanceContext = null;
int referenceCount = -1;
try
{
lock (lockObject)
{
if (!contextCache.TryGetValue(instanceId, out contextItem))
{
contextItem = new ContextItem(instanceId);
referenceCount = contextItem.AddReference();
contextCache.Add(instanceId, contextItem);
return false;
}
referenceCount = contextItem.AddReference();
}
}
finally
{
if (DiagnosticUtility.ShouldTraceInformation)
{
string traceText = SR2.GetString(SR2.DurableInstanceRefCountToInstanceContext, instanceId, referenceCount);
TraceUtility.TraceEvent(TraceEventType.Information,
TraceCode.InstanceContextBoundToDurableInstance, SR.GetString(SR.TraceCodeInstanceContextBoundToDurableInstance),
new StringTraceRecord("InstanceDetail", traceText),
this, null);
}
}
instanceContext = contextItem.InstanceContext;
return true;
}
public void AddInstanceContext(Guid instanceId, InstanceContext instanceContext)
{
ContextItem contextItem;
int? referenceCount = null;
lock (lockObject)
{
if (!contextCache.TryGetValue(instanceId, out contextItem))
{
//This will be the case for activation request.
contextItem = new ContextItem(instanceId);
referenceCount = contextItem.AddReference();
contextCache.Add(instanceId, contextItem);
}
}
contextItem.InstanceContext = instanceContext;
if (DiagnosticUtility.ShouldTraceInformation && referenceCount.HasValue)
{
string traceText = SR2.GetString(SR2.DurableInstanceRefCountToInstanceContext, instanceId, referenceCount.Value);
TraceUtility.TraceEvent(TraceEventType.Information,
TraceCode.InstanceContextBoundToDurableInstance, SR.GetString(SR.TraceCodeInstanceContextBoundToDurableInstance),
new StringTraceRecord("InstanceDetail", traceText),
this, null);
}
}