public string RuleWriter(Rule rule)
{
StringWriter writer = new StringWriter();
XmlSerializer ruleSerializer = null;
switch (rule.RuleTypeID)
{
case RuleType.PaymentMethod:
ruleSerializer = new XmlSerializer(typeof(PaymentMethodRule));
break;
case RuleType.Region:
ruleSerializer = new XmlSerializer(typeof(RegionRule));
break;
case RuleType.QuantityNeeded:
ruleSerializer = new XmlSerializer(typeof(QuantityNeededRule));
break;
case RuleType.Schedule:
ruleSerializer = new XmlSerializer(typeof(ScheduleRule));
break;
}
var xmlnsEmpty = new XmlSerializerNamespaces();
xmlnsEmpty.Add(string.Empty, string.Empty);
ruleSerializer.Serialize(writer, rule, xmlnsEmpty);
return writer.ToString();
}
private RuleFunc <RuleResultTree> CompileRule(Rule rule, RuleParameter[] ruleParams, ScopedParam[] scopedParams)
{
return(_ruleCompiler.CompileRule(rule, ruleParams, scopedParams));
}
private RuleFunc <RuleResultTree> CompileRule(string workflowName, RuleParameter[] ruleParams, Rule rule)
{
if (!_reSettings.EnableLocalParams)
{
return(_ruleCompiler.CompileRule(rule, ruleParams));
}
var compiledParamsKey = GetCompiledParamsCacheKey(workflowName, rule.RuleName, ruleParams);
IEnumerable <CompiledParam> compiledParamList = _compiledParamsCache.GetOrCreate(compiledParamsKey, (entry) => _ruleParamCompiler.CompileParamsExpression(rule, ruleParams));
var compiledRuleParameters = compiledParamList?.Select(c => c.AsRuleParameter()) ?? new List <RuleParameter>();
var updatedRuleParams = ruleParams?.Concat(compiledRuleParameters);
var compiledRule = _ruleCompiler.CompileRule(rule, updatedRuleParams?.ToArray());
RuleFunc <RuleResultTree> updatedRule = (RuleParameter[] paramList) =>
{
var inputs = paramList.AsEnumerable();
IEnumerable <CompiledParam> localParams = compiledParamList ?? new List <CompiledParam>();
var evaluatedParamList = new List <RuleParameter>();
foreach (var localParam in localParams)
{
var evaluatedLocalParam = _ruleParamCompiler.EvaluateCompiledParam(localParam.Name, localParam.Value, inputs);
inputs = inputs.Append(evaluatedLocalParam);
evaluatedParamList.Add(evaluatedLocalParam);
}
var result = compiledRule(inputs.ToArray());
result.RuleEvaluatedParams = evaluatedParamList;
return(result);
};
return(updatedRule);
}
