/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="base"></param>
/// <param name="property"></param>
/// <returns></returns>
public override object GetValue(ELContext context, object @base, object property)
{
string variable = property.ToString();
if (@base == null)
{
if ((EXECUTION_KEY.Equals(variable) && variableScope is IExecutionEntity) || (TASK_KEY.Equals(variable) && variableScope is ITaskEntity))
{
context.IsPropertyResolved = true;
return(variableScope);
}
else if (EXECUTION_KEY.Equals(variable) && variableScope is ITaskEntity entity)
{
context.IsPropertyResolved = true;
return(entity.Execution);
}
else if (LOGGED_IN_USER_KEY.Equals(variable))
{
context.IsPropertyResolved = true;
return(Authentication.AuthenticatedUser.Id);
}
else
{
if (variableScope.HasVariable(variable))
{
context.IsPropertyResolved = true; // if not set, the next elResolver in the CompositeElResolver will be called
return(variableScope.GetVariable(variable));
}
}
}
else
{
if (variableScope.HasVariable(variable))
{
context.IsPropertyResolved = true; // if not set, the next elResolver in the CompositeElResolver will be called
return(variableScope.GetVariable(variable));
}
}
// property resolution (eg. bean.value) will be done by the
// BeanElResolver (part of the CompositeElResolver)
// It will use the bean resolved in this resolver as base.
return(null);
}
public virtual void Initialize(IVariableScope innerScopeInstance, IVariableScope outerScopeInstance)
{
if (!ReferenceEquals(sourceVariableName, null))
{
if (outerScopeInstance.HasVariable(sourceVariableName))
{
var value = outerScopeInstance.GetVariable(sourceVariableName);
innerScopeInstance.SetVariable(destinationVariableName, value);
}
else
{
throw new ProcessEngineException("Couldn't create variable '" + destinationVariableName +
"', since the source variable '" + sourceVariableName +
"does not exist");
}
}
if (sourceExpression != null)
{
var value = sourceExpression.GetValue(outerScopeInstance);
innerScopeInstance.SetVariable(destinationVariableName, value);
}
if (!ReferenceEquals(link, null))
{
if (outerScopeInstance.HasVariable(sourceVariableName))
{
var value = outerScopeInstance.GetVariable(sourceVariableName);
innerScopeInstance.SetVariable(destinationVariableName, value);
}
else
{
throw new ProcessEngineException("Couldn't create variable '" + destinationVariableName +
"', since the source variable '" + sourceVariableName +
"does not exist");
}
}
if (linkExpression != null)
{
var value = sourceExpression.GetValue(outerScopeInstance);
innerScopeInstance.SetVariable(destinationVariableName, value);
}
}
public virtual void Destroy(IVariableScope innerScopeInstance, IVariableScope outerScopeInstance)
{
if (!ReferenceEquals(destinationVariableName, null))
{
if (innerScopeInstance.HasVariable(sourceVariableName))
{
var value = innerScopeInstance.GetVariable(sourceVariableName);
outerScopeInstance.SetVariable(destinationVariableName, value);
}
else
{
throw new ProcessEngineException("Couldn't destroy variable " + sourceVariableName +
", since it does not exist");
}
}
if (destinationExpression != null)
{
var value = destinationExpression.GetValue(innerScopeInstance);
outerScopeInstance.SetVariable(destinationVariableName, value);
}
if (!ReferenceEquals(link, null))
{
if (innerScopeInstance.HasVariable(sourceVariableName))
{
var value = innerScopeInstance.GetVariable(sourceVariableName);
outerScopeInstance.SetVariable(destinationVariableName, value);
}
else
{
throw new ProcessEngineException("Couldn't destroy variable " + sourceVariableName +
", since it does not exist");
}
}
if (linkExpression != null)
{
var value = sourceExpression.GetValue(innerScopeInstance);
outerScopeInstance.SetVariable(destinationVariableName, value);
}
}
public virtual bool HasVariable(string variableName)
{
if (HasVariableLocal(variableName))
{
return(true);
}
IVariableScope parentScope = ParentVariableScope;
if (parentScope != null)
{
return(parentScope.HasVariable(variableName));
}
return(false);
}
/// <summary>
///
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public virtual bool ContainsKey(object key)
{
return(variableScopeKey.Equals(key?.ToString()) || KEYS.Contains(key?.ToString()) || variableScope.HasVariable(key?.ToString()));
}
public virtual bool ContainsVariable(string variableName)
{
return(VariableScope.HasVariable(variableName));
}
public virtual bool ContainsKey(object key)
{
return(variableScopeKey.Equals(key) || variableScope.HasVariable((string)key));
}