/// <summary>
/// generate theCode for a rule rule
/// </summary>
/// <param name="rule"></param>
/// <returns></returns>
public bool Generate(SelectionRule rule, out ICodeBit code)
{
try
{
bool result = true;
code = null;
// check if the object to which data engine
foreach (iDataObjectEngine aDataEngine in _dataobjectEngines.Reverse <iDataObjectEngine> ())
{
foreach (String aName in rule.ResultingObjectnames())
{
result &= aDataEngine.Objects.HasObjectDefinition(id: aName);
}
if (result)
{
return(aDataEngine.Generate((rule as eXPressionTree.IRule), out code));
}
}
// failure
if (!result)
{
String theNames = DataType.ToString(rule.ResultingObjectnames());
throw new RulezException(RulezException.Types.NoDataEngineAvailable, arguments: new object[] { theNames });
}
return(false);
}
catch (Exception ex)
{
throw new RulezException(RulezException.Types.GenerateFailed, inner: ex);
}
}
/// <summary>
/// adds or replaces a codebit
/// </summary>
/// <param name="theCode"></param>
/// <returns></returns>
private bool AddCode(ICodeBit code)
{
if (_Code.ContainsKey(code.Handle))
{
_Code.Remove(code.Handle);
}
_Code.Add(key: code.Handle, value: code);
return(true);
}
/// <summary>
/// run a rule rule and return an ienumerable of IDataObjects
/// </summary>
/// <param name="ruleid"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public IEnumerable <iDataObject> RunSelectionRule(string ruleid, params object[] parameters)
{
SelectionRule aRule = this.GetSelectionRule(id: ruleid);
// search the rule
if (aRule == null)
{
throw new RulezException(RulezException.Types.IdNotFound, arguments: new object[] { ruleid, "SelectionRule" });
}
// not the required number of arguments
if (parameters.Length != aRule.Parameters.Count())
{
throw new RulezException(RulezException.Types.InvalidNumberOfArguments, arguments: new object[] { "SelectionRule", ruleid, aRule.Parameters.Count(), parameters.Length });
}
// get the Codebit
ICodeBit theCode = this.GetCode(aRule.Handle);
if (theCode == null)
{
throw new RulezException(RulezException.Types.HandleNotDefined, arguments: new object[] { aRule.ID });
}
if (theCode.Code == null)
{
throw new RulezException(RulezException.Types.InvalidCode, arguments: new object[] { aRule.ID, aRule.Handle });
}
// push the arguments
_context.PushParameters(parameters);
try
{
// run the theCode
if (theCode.Code(_context) == false)
{
return(null);
}
// pop result
IEnumerable <iDataObject> result = (_context.Pop() as IEnumerable <iDataObject>);
return(result);
}
catch (RulezException ex)
{
throw new RulezException(RulezException.Types.RunFailed, inner: ex, message: ex.Message);
}
catch (Exception ex)
{
throw new RulezException(RulezException.Types.RunFailed, inner: ex);
}
}
/// <summary>
/// Generate from a rule the intermediate Code and store it
/// </summary>
/// <param name="rule"></param>
/// <returns></returns>
public bool Generate(IRule rule)
{
ICodeBit code = null;
bool result;
try
{
switch (rule.NodeType)
{
// rule rule
case otXPTNodeType.SelectionRule:
result = Generate((rule as SelectionRule), out code);
break;
// no theCode
default:
throw new RulezException(RulezException.Types.InvalidNodeType, arguments: new object[] { rule.NodeType.ToString(), "IRULE" });
}
// if successfull
if (result)
{
rule.RuleState = otRuleState.generatedCode;
// get the handle
if (code != null && !String.IsNullOrEmpty(code.Handle))
{
code.Handle = rule.Handle;
}
// add it to the code base
if (code != null && !String.IsNullOrEmpty(code.Handle))
{
AddCode(code);
}
else
{
throw new RulezException(RulezException.Types.HandleNotDefined, arguments: new object[] { rule.ID });
}
}
return(result);
} catch (Exception ex)
{
throw new RulezException(RulezException.Types.GenerateFailed, inner: ex);
}
}
/// <summary>
/// adds or replaces a codebit
/// </summary>
/// <param name="theCode"></param>
/// <returns></returns>
private bool AddCode(ICodeBit code)
{
if (_Code.ContainsKey(code.Handle)) _Code.Remove(code.Handle);
_Code.Add(key: code.Handle, value: code);
return true;
}
/// <summary>
/// generate theCode for a rule rule
/// </summary>
/// <param name="rule"></param>
/// <returns></returns>
public bool Generate(SelectionRule rule, out ICodeBit code)
{
try
{
bool result = true;
code = null;
// check if the object to which data engine
foreach (iDataObjectEngine aDataEngine in _dataobjectEngines.Reverse <iDataObjectEngine > () )
{
foreach (String aName in rule.ResultingObjectnames () )
result &= aDataEngine.Objects.HasObjectDefinition(id: aName);
if (result)
return aDataEngine.Generate((rule as eXPressionTree.IRule), out code);
}
// failure
if (!result)
{
String theNames = DataType.ToString(rule.ResultingObjectnames());
throw new RulezException(RulezException.Types.NoDataEngineAvailable, arguments: new object[] { theNames });
}
return false;
}
catch (Exception ex)
{
throw new RulezException(RulezException.Types.GenerateFailed, inner: ex);
}
}
