public virtual void SetVariableValue(string name, string value)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("Variable name cannot be null or empty.", nameof(name));
}
var isGlobal = CustomVariablesConfiguration.IsGlobalVariable(name);
var initialValue = default(string);
if (isGlobal)
{
globalVariableMap.TryGetValue(name, out initialValue);
globalVariableMap[name] = value;
}
else
{
localVariableMap.TryGetValue(name, out initialValue);
localVariableMap[name] = value;
}
if (initialValue != value)
{
OnVariableUpdated?.Invoke(new CustomVariableUpdatedArgs(name, value, initialValue));
}
}
public virtual string GetVariableValue(string name)
{
if (!VariableExists(name))
{
return(null);
}
return(CustomVariablesConfiguration.IsGlobalVariable(name) ? globalVariableMap[name] : localVariableMap[name]);
}
public virtual bool VariableExists(string name)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("Variable name cannot be null or empty.", nameof(name));
}
return(CustomVariablesConfiguration.IsGlobalVariable(name) ? globalVariableMap.ContainsKey(name) : localVariableMap.ContainsKey(name));
}
public virtual void ResetGlobalVariables()
{
globalVariableMap?.Clear();
foreach (var varData in Configuration.PredefinedVariables)
{
if (!CustomVariablesConfiguration.IsGlobalVariable(varData.Name))
{
continue;
}
var value = ExpressionEvaluator.Evaluate <string>(varData.Value, e => LogInitializeVarError(varData.Name, varData.Value, e));
SetVariableValue(varData.Name, value);
}
}
/// <summary>
/// Attempts to retrieve value of a variable with the provided name and type. Variable names are case-insensitive.
/// When no variables of the provided name are found or when the string value can't be parsed to the requested type, will return false.
/// </summary>
public static bool TryGetVariableValue <TValue> (this ICustomVariableManager manager, string name, out TValue value)
{
value = default;
var stringValue = manager.GetVariableValue(name);
if (stringValue is null)
{
return(false);
}
var objValue = CustomVariablesConfiguration.ParseVariableValue(stringValue);
if (objValue is TValue)
{
value = (TValue)objValue;
return(true);
}
return(false);
}
public void SetVariableValue(string name, string value)
{
var isGlobal = CustomVariablesConfiguration.IsGlobalVariable(name);
var initialValue = default(string);
if (isGlobal)
{
globalVariableMap.TryGetValue(name, out initialValue);
globalVariableMap[name] = value;
}
else
{
localVariableMap.TryGetValue(name, out initialValue);
localVariableMap[name] = value;
}
if (initialValue != value)
{
OnVariableUpdated?.Invoke(new CustomVariableUpdatedArgs(name, value, initialValue));
}
}
public CustomVariableManager(CustomVariablesConfiguration config)
{
this.config = config;
globalVariableMap = new SerializableLiteralStringMap();
localVariableMap = new SerializableLiteralStringMap();
}
public bool VariableExists(string name) => CustomVariablesConfiguration.IsGlobalVariable(name) ? globalVariableMap.ContainsKey(name) : localVariableMap.ContainsKey(name);