private RuleDefinition GetRuleDefinition(RuleDto ruleDto)
{
var tokens = _lexer.Lex(ruleDto.RuleExpression).ToList();
var ruleDefinition = _parser.Parse(tokens);
ruleDefinition.Id = ruleDto.Id;
return(ruleDefinition);
}
public void DeleteRule(RuleDto ruleDto)
{
if (ruleDto == null)
{
throw new ArgumentNullException(nameof(ruleDto));
}
_ruleStore.DeleteRule(ruleDto);
}
public Rule <TTarget, TComparison> UpdateRule <TTarget, TComparison>(RuleDto ruleDto)
{
if (ruleDto == null)
{
throw new ArgumentNullException(nameof(ruleDto));
}
var updatedRule = _ruleStore.UpdateRule <TTarget, TComparison>(ruleDto);
return(GetRule <TTarget, TComparison>(updatedRule));
}
public void DeleteRule(RuleDto ruleDto)
{
if (ruleDto == null)
{
throw new ArgumentNullException(nameof(ruleDto));
}
var toDelete = ruleDto.Clone();
_ruleRecords.Remove(toDelete.Id);
}
private Rule <TTarget, TComparison> GetRule <TTarget, TComparison>(RuleDto ruleDto)
{
var ruleDefinition = GetRuleDefinition(ruleDto);
return(new Rule <TTarget, TComparison>
{
Id = ruleDto.Id,
Name = ruleDto.Name,
Expression = ruleDto.RuleExpression,
Validate = _interpreter.Interpret <TTarget, TComparison>(ruleDefinition)
});
}
public RuleDto UpdateRule <TTarget, TComparison>(RuleDto ruleDto)
{
if (ruleDto == null)
{
throw new ArgumentNullException(nameof(ruleDto));
}
var toUpdate = ruleDto.Clone();
if (ruleDto.Id == null || !_ruleRecords.ContainsKey(toUpdate.Id))
{
return(AddRule <TTarget, TComparison>(toUpdate));
}
DeleteRule(toUpdate);
return(AddRule <TTarget, TComparison>(toUpdate));
}
public RuleDto AddRule <TTarget, TComparison>(RuleDto ruleDto)
{
if (ruleDto == null)
{
throw new ArgumentNullException(nameof(ruleDto));
}
var toAdd = ruleDto.Clone();
if (string.IsNullOrWhiteSpace(ruleDto.Id))
{
toAdd.Id = Guid.NewGuid().ToString();
}
_ruleRecords.Add(toAdd.Id, toAdd);
return(toAdd);
}