protected internal virtual ISet <string> CollectVariableNames(ISet <string> variableNames)
{
if (transientVariabes != null)
{
transientVariabes.Keys.ToList().ForEach(x =>
{
variableNames.Add(x);
});
}
EnsureVariableInstancesInitialized();
VariableScopeImpl parentScope = ParentVariableScope;
if (parentScope != null)
{
parentScope.CollectVariableNames(variableNames).ToList().ForEach(x =>
{
variableNames.Add(x);
});
}
foreach (IVariableInstanceEntity variableInstance in variableInstances.Values)
{
variableNames.Add(variableInstance.Name);
}
return(variableNames);
}
protected internal virtual IDictionary <string, IVariableInstance> CollectVariableInstances(Dictionary <string, IVariableInstance> variables)
{
EnsureVariableInstancesInitialized();
VariableScopeImpl parentScope = ParentVariableScope;
if (parentScope != null)
{
variables.PutAll(parentScope.CollectVariableInstances(variables));
}
foreach (IVariableInstance variableInstance in variableInstances.Values)
{
variables[variableInstance.Name] = variableInstance;
}
foreach (string variableName in usedVariablesCache.Keys)
{
variables[variableName] = usedVariablesCache[variableName];
}
if (transientVariabes != null)
{
variables.PutAll(transientVariabes);
}
return(variables);
}
public virtual void RemoveTransientVariables()
{
RemoveTransientVariablesLocal();
VariableScopeImpl parentVariableScope = ParentVariableScope;
if (parentVariableScope != null)
{
parentVariableScope.RemoveTransientVariablesLocal();
}
}
public virtual void SetTransientVariable(string variableName, object variableValue)
{
VariableScopeImpl parentVariableScope = ParentVariableScope;
if (parentVariableScope != null)
{
parentVariableScope.SetTransientVariable(variableName, variableValue);
return;
}
SetTransientVariableLocal(variableName, variableValue);
}
public virtual void RemoveTransientVariable(string variableName)
{
if (transientVariabes != null && transientVariabes.ContainsKey(variableName))
{
RemoveTransientVariableLocal(variableName);
return;
}
VariableScopeImpl parentVariableScope = ParentVariableScope;
if (parentVariableScope != null)
{
parentVariableScope.RemoveTransientVariable(variableName);
}
}
public virtual object GetTransientVariable(string variableName)
{
if (transientVariabes != null && transientVariabes.ContainsKey(variableName))
{
return(transientVariabes[variableName].Value);
}
VariableScopeImpl parentScope = ParentVariableScope;
if (parentScope != null)
{
return(parentScope.GetTransientVariable(variableName));
}
return(null);
}
protected internal virtual IDictionary <string, object> CollectTransientVariables(Dictionary <string, object> variables)
{
VariableScopeImpl parentScope = ParentVariableScope;
if (parentScope != null)
{
variables.PutAll(parentScope.CollectVariables(variables));
}
if (transientVariabes != null)
{
foreach (string variableName in transientVariabes.Keys)
{
variables[variableName] = transientVariabes[variableName].Value;
}
}
return(variables);
}
protected internal virtual void RemoveVariable(string variableName, IExecutionEntity sourceActivityExecution)
{
EnsureVariableInstancesInitialized();
if (variableInstances.ContainsKey(variableName))
{
RemoveVariableLocal(variableName);
return;
}
VariableScopeImpl parentVariableScope = ParentVariableScope;
if (parentVariableScope != null)
{
if (sourceActivityExecution == null)
{
parentVariableScope.RemoveVariable(variableName);
}
else
{
parentVariableScope.RemoveVariable(variableName, sourceActivityExecution);
}
}
}
/// <summary>
/// Sets a variable as high as possible (highest parent).
/// </summary>
/// <param name="sourceExecution"> The execution where the variable was originally set, used for history data. </param>
/// <param name="fetchAllVariables"> If true, all existing variables will be fetched when setting the variable. </param>
protected internal virtual void SetVariable(string variableName, object value, IExecutionEntity sourceExecution, bool fetchAllVariables)
{
if (fetchAllVariables == true)
{
// If it's in the cache, it's more recent
if (usedVariablesCache.ContainsKey(variableName))
{
UpdateVariableInstance(usedVariablesCache[variableName], value, sourceExecution);
}
// If the variable exists on this scope, replace it
if (HasVariableLocal(variableName))
{
SetVariableLocal(variableName, value, sourceExecution, true);
return;
}
// Otherwise, go up the hierarchy (we're trying to put it as high as possible)
VariableScopeImpl parentVariableScope = ParentVariableScope;
if (parentVariableScope != null)
{
if (sourceExecution == null)
{
parentVariableScope.SetVariable(variableName, value);
}
else
{
parentVariableScope.SetVariable(variableName, value, sourceExecution, true);
}
return;
}
// We're as high as possible and the variable doesn't exist yet, so
// we're creating it
if (sourceExecution != null)
{
CreateVariableLocal(variableName, value, sourceExecution);
}
else
{
CreateVariableLocal(variableName, value);
}
}
else
{
// Check local cache first
if (usedVariablesCache.ContainsKey(variableName))
{
UpdateVariableInstance(usedVariablesCache[variableName], value, sourceExecution);
}
else if (variableInstances != null && variableInstances.ContainsKey(variableName))
{
UpdateVariableInstance(variableInstances[variableName], value, sourceExecution);
}
else
{
// Not in local cache, check if defined on this scope
// Create it if it doesn't exist yet
IVariableInstanceEntity variable = GetSpecificVariable(variableName);
if (variable != null)
{
UpdateVariableInstance(variable, value, sourceExecution);
usedVariablesCache[variableName] = variable;
}
else
{
VariableScopeImpl parent = ParentVariableScope;
if (parent != null)
{
if (sourceExecution == null)
{
parent.SetVariable(variableName, value, fetchAllVariables);
}
else
{
parent.SetVariable(variableName, value, sourceExecution, fetchAllVariables);
}
return;
}
variable = CreateVariableInstance(variableName, value, sourceExecution);
usedVariablesCache[variableName] = variable;
}
}
}
}
