// Methods
public override bool Evaluate(Activity activity, IServiceProvider provider)
{
Activity parent = activity;
RuleDefinitions definitions = null;
while (parent != null)
{
definitions = (RuleDefinitions)parent.GetValue(RuleDefinitions.RuleDefinitionsProperty);
if (definitions != null)
{
break;
}
parent = parent.Parent;
}
if (definitions == null)
{
Console.WriteLine("No definition");
return(false);
}
//Console.WriteLine ("Definition {0} at {1}", definitions, parent);
RuleValidation validation = new RuleValidation(activity.GetType(), null);
RuleExecution execution = new RuleExecution(validation, parent);
RuleCondition condition = definitions.Conditions [ConditionName];
//Console.WriteLine ("Condition {0}", condition);
return(condition.Evaluate(execution));
}
public override bool Evaluate(Activity activity, IServiceProvider provider)
{
if (activity == null)
{
throw new ArgumentNullException("activity");
}
if (string.IsNullOrEmpty(this._condition))
{
throw new InvalidOperationException(SR.GetString(SR.Error_MissingConditionName, activity.Name));
}
RuleDefinitions defs = null;
if (string.IsNullOrEmpty(this.declaringActivityId))
{
// No Runtime Initialization.
CompositeActivity declaringActivity = null;
defs = RuleConditionReference.GetRuleDefinitions(activity, out declaringActivity);
}
else
{
// Runtime Initialized.
defs = (RuleDefinitions)activity.GetActivityByName(declaringActivityId).GetValue(RuleDefinitions.RuleDefinitionsProperty);
}
if ((defs == null) || (defs.Conditions == null))
{
throw new InvalidOperationException(SR.GetString(SR.Error_MissingRuleConditions));
}
RuleCondition conditionDefinitionToEvaluate = defs.Conditions[this._condition];
if (conditionDefinitionToEvaluate != null)
{
Activity contextActivity = System.Workflow.Activities.Common.Helpers.GetEnclosingActivity(activity);
RuleValidation validation = new RuleValidation(contextActivity);
if (!conditionDefinitionToEvaluate.Validate(validation))
{
string message = string.Format(CultureInfo.CurrentCulture, Messages.ConditionValidationFailed, this._condition);
throw new InvalidOperationException(message);
}
RuleExecution context = new RuleExecution(validation, contextActivity, provider as ActivityExecutionContext);
return(conditionDefinitionToEvaluate.Evaluate(context));
}
else
{
// no condition, so defaults to true
return(true);
}
}
public override bool Evaluate(Activity activity, IServiceProvider provider)
{
if (activity == null)
{
throw new ArgumentNullException("activity");
}
if (string.IsNullOrEmpty(this._condition))
{
throw new InvalidOperationException(SR.GetString("Error_MissingConditionName", new object[] { activity.Name }));
}
RuleDefinitions ruleDefinitions = null;
if (string.IsNullOrEmpty(this.declaringActivityId))
{
CompositeActivity declaringActivity = null;
ruleDefinitions = GetRuleDefinitions(activity, out declaringActivity);
}
else
{
ruleDefinitions = (RuleDefinitions)activity.GetActivityByName(this.declaringActivityId).GetValue(RuleDefinitions.RuleDefinitionsProperty);
}
if ((ruleDefinitions == null) || (ruleDefinitions.Conditions == null))
{
throw new InvalidOperationException(SR.GetString("Error_MissingRuleConditions"));
}
RuleCondition condition = ruleDefinitions.Conditions[this._condition];
if (condition == null)
{
return(true);
}
Activity enclosingActivity = Helpers.GetEnclosingActivity(activity);
RuleValidation validation = new RuleValidation(enclosingActivity);
if (!condition.Validate(validation))
{
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, Messages.ConditionValidationFailed, new object[] { this._condition }));
}
RuleExecution execution = new RuleExecution(validation, enclosingActivity, provider as ActivityExecutionContext);
return(condition.Evaluate(execution));
}