79 lines
2.6 KiB
C#
79 lines
2.6 KiB
C#
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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using RulesEngine.Exceptions;
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using RulesEngine.Models;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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namespace RulesEngine.HelperFunctions
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{
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/// <summary>
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/// Helpers
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/// </summary>
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internal static class Helpers
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{
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internal static RuleFunc<RuleResultTree> ToResultTree(ReSettings reSettings, Rule rule, IEnumerable<RuleResultTree> childRuleResults, Func<object[], bool> isSuccessFunc, string exceptionMessage = "")
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{
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return (inputs) => {
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var isSuccess = false;
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var inputsDict = new Dictionary<string, object>();
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try
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{
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inputsDict = inputs.ToDictionary(c => c.Name, c => c.Value);
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isSuccess = isSuccessFunc(inputs.Select(c => c.Value).ToArray());
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}
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catch (Exception ex)
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{
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exceptionMessage = GetExceptionMessage($"Error while executing rule : {rule?.RuleName} - {ex.Message}", reSettings);
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HandleRuleException(new RuleException(exceptionMessage,ex), rule, reSettings);
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isSuccess = false;
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}
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return new RuleResultTree {
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Rule = rule,
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Inputs = inputsDict,
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IsSuccess = isSuccess,
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ChildResults = childRuleResults,
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ExceptionMessage = exceptionMessage
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};
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};
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}
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internal static RuleFunc<RuleResultTree> ToRuleExceptionResult(ReSettings reSettings, Rule rule,Exception ex)
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{
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HandleRuleException(ex, rule, reSettings);
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return ToResultTree(reSettings, rule, null, (args) => false, ex.Message);
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}
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internal static void HandleRuleException(Exception ex, Rule rule, ReSettings reSettings)
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{
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ex.Data.Add(nameof(rule.RuleName), rule.RuleName);
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ex.Data.Add(nameof(rule.Expression), rule.Expression);
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if (!reSettings.EnableExceptionAsErrorMessage)
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{
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throw ex;
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="ex"></param>
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/// <param name="message"></param>
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/// <param name="rule"></param>
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/// <param name="reSettings"></param>
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/// <returns></returns>
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internal static string GetExceptionMessage(string message,ReSettings reSettings)
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{
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return reSettings.IgnoreException ? "" : message;
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}
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}
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}
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