/// <summary>
/// Evaluates the expressions.
/// </summary>
/// <param name="contextEntity">The context entity.</param>
/// <param name="expressions">The expressions.</param>
/// <returns></returns>
private Dictionary <string, EvaluateResult> EvaluateExpressionsInternal(IEntity contextEntity, IDictionary <string, CalcEngineExpression> expressions)
{
var results = new Dictionary <string, EvaluateResult>();
var contextEntityTypeId = new EntityRef(contextEntity.TypeIds.FirstOrDefault());
foreach (var item in expressions)
{
string key = item.Key;
try
{
CalcEngineExpression expression = item.Value;
IExpression compiledExpression = CompileExpression(contextEntityTypeId, expression);
string value = RunExpression(compiledExpression, contextEntity);
results[key] = new EvaluateResult
{
Value = value,
CompiledExpression = compiledExpression
};
}
catch (Exception ex)
{
results[key] = new EvaluateResult
{
Error = ex.ToString()
};
}
}
return(results);
}
/// <summary>
/// Compiles the expression.
/// </summary>
/// <param name="contextEntityTypeId">The context entity type identifier.</param>
/// <param name="expression">The expression.</param>
/// <returns></returns>
private IExpression CompileExpression(EntityRef contextEntityTypeId, CalcEngineExpression expression)
{
var builderSettings = new BuilderSettings
{
RootContextType = ExprTypeHelper.EntityOfType(contextEntityTypeId),
ScriptHost = ScriptHostType.Any
};
return(Factory.ExpressionCompiler.Compile(expression.Expression, builderSettings));
}
