public RuleBookTemplateModel(string name, string baseClassName, RuleEngineRule[] rules, LookupTable[] tables)
{
Name = name;
BaseClassName = baseClassName;
_rules = rules;
Tables = tables;
}
public ActionResult Variables(string id)
{
var result = new object[] { };
if (id != null)
{
var root = new RuleEngineRule();
root.Children.AddRange(Strategy.GetRuleBookRules(CurrentRuleBookId, null));
var item = root.Find(id);
if (item != null)
{
result = result.Union(item.AccessibleVars.OrderBy(p => p).Select(p => new
{
name = p,
value = p,
type = "variable",
description = p
})).ToArray();
}
}
// TODO Find out how this fits in if we arn't using the configuration part anymore
//result = result.Union(ConfigExpressionTree.GetAll().OrderBy(p => p.Name)
// .Select(p => new
// {
// name = p.Display,
// value = p.Name,
// type = "variable",
// description = p.Name + "( " + p.Display + " )"
// }).ToArray().Distinct().ToArray()).ToArray();
return Json(result, JsonRequestBehavior.AllowGet);
}
public RuleEngineRule(string id, string name, string expression, RuleEngineRule parent)
{
Id = id;
Name = name;
RuleExpression = expression;
Parent = parent;
Expression = new Expression(expression);
}
public IEnumerable<RuleBookError> ValidateRule(RuleEngineRule rule)
{
foreach (var lookup in rule.Lookups)
{
if (!LookupTables.Contains(lookup) && !PredefinedFunctions.Contains(lookup))
{
yield return new RuleBookError("Validator", string.Format("Lookup/Method {0} not found.", lookup));
}
}
}
public ActionResult SaveRule(RuleEngineRule model)
{
// Is this an override of the current rulebook already
var forceNew = CurrentRuleBookId != model.RuleBookId;
// Set the rulebook id to the the current rule book to override it
model.RuleBookId = CurrentRuleBookId;
// Save the rule
Strategy.SaveRule(model, forceNew);
// Return the result view
return View("Index", RuleHelper.SortRules(Strategy.GetRuleBookRules(CurrentRuleBookId).ToArray()));
}
public static IEnumerable<RuleEngineRule> SortRules(RuleEngineRule[] rules)
{
var ratingRule = new RuleEngineRule();
ratingRule.Children.AddRange(rules);
try
{
SortRules(ratingRule);
}
catch (Exception ex)
{
return rules;
}
return ratingRule.Children;
}
public static void SortRules(RuleEngineRule rule, ContextList<string> variables)
{
//var childList = rule.Children.ToArray();
// Clear the children
//rule.Children.Clear();
if (rule.Children.Count > 0)
{
variables.PushContext();
// Push a new variable context
rule.Children = new RulesCollection(RuleEngineRule.SortedRules(rule.Children, variables.All.ToArray()), rule);
foreach (var child in rule.Children)
{
SortRules(child, variables);
}
variables.PopContext();
}
variables.Add(rule.Name);
}
public static void SortRules(RuleEngineRule ratingRule)
{
var children = ratingRule.Children.ToArray();
var variableContext = new ContextList<string>();
variableContext.PushContext();
var outputs = children.SelectMany(p => p.Outputs).ToArray();
var variables = children.SelectMany(p => p.AllInputs).Except(outputs).ToList();
foreach (var variable in variables)
{
variableContext.Add(variable);
}
SortRules(ratingRule, variableContext);
variableContext.PopContext();
}
//
// GET: /RatingEngine/Intellisense/
public ActionResult RuleVars(string id)
{
var result = new object[] { };
if (id != null)
{
var root = new RuleEngineRule();
root.Children.AddRange(Strategy.GetRuleBookRules(CurrentRuleBookId, null));
var item = root.Find(id);
if (item != null)
{
result = result.Union(item.AccessibleVars.OrderBy(p => p)
.Select(p => new
{
name = p,
value = p,
type = "variable",
description = p
})).ToArray();
}
}
return Json(result, JsonRequestBehavior.AllowGet);
}
public RuleBookTemplateModel(string name, RuleEngineRule[] rules, LookupTable[] tables)
: this(name, "CompiledRuleBookBase", rules, tables)
{
}
public RuleEngineRule(string name, RuleEngineRule parent)
{
Name = name;
Parent = parent;
}
private void TraverseRules(RuleEngineRule root, Action<RuleEngineRule> action)
{
foreach (var child in root.Children)
{
action(child);
TraverseRules(root, action);
}
}
public void SaveRule(RuleEngineRule ratingRule, bool forceNew = false)
{
var id = Convert.ToInt32(ratingRule.Id);
var rule = Db.RuleBookRules.FirstOrDefault(p => p.Id == id && p.RuleBookId == ratingRule.RuleBookId);
if (rule == null || rule.EffectiveDate < EffectiveDate || forceNew)
{
rule = new RuleBookRule
{
ChangeId = new Guid(ratingRule.ChangeId),
EffectiveDate = EffectiveDate
};
Db.RuleBookRules.AddObject(rule);
}
rule.Context = ratingRule.LoopContext;
rule.Name = ratingRule.Name;
rule.RuleBookId = ratingRule.RuleBookId;
rule.ParentChangeId = ratingRule.ParentChangeId;
rule.RuleExpression = ratingRule.RuleExpression ?? "true";
rule.Active = ratingRule.Active;
Db.SaveChanges();
}
public IEnumerable<RuleEngineRule> GetRuleBookRules(int ruleBookId, Predicate<RuleEngineRule> filter, bool validate = true)
{
var root = new RuleEngineRule();
var rules = GetBaseRuleBookRules(ruleBookId).ToArray();
FillRules(filter, validate, root, rules.Where(p => p.ParentChangeId == null), rules);
return root.Children;
}
