public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (methodCallExpression == null)
{
return(null);
}
string methodName = Mapping.AllowedMethods[methodCallExpression.Method.Name];
var memberExpression = methodCallExpression.Arguments[0] as MemberExpression;
string currentName = memberExpression.Member.Name;
var callerParent = predicateVisitorFactory.Create(memberExpression.Expression);
ConstantPredicateVisitor constant = new ConstantPredicateVisitor(currentName);
// c.Key.In("c14", "c15")
if (methodCallExpression.Arguments.Count > 1)
{
IPredicateVisitor methodArguments = predicateVisitorFactory.Create(methodCallExpression.Arguments[1]);
var inner = new BinaryPredicateVisitor(constant, methodName, methodArguments);
return(CombinePredicates(callerParent, inner));
}
// c.Key.IsDefined()
var binaryPredicateVisitor = new BinaryPredicateVisitor(constant, methodName, new ConstantPredicateVisitor(string.Empty));
return(CombinePredicates(callerParent, binaryPredicateVisitor));
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (methodCallExpression == null)
{
return(null);
}
string methodName = FilterMapping.AllowedGroupMethods[methodCallExpression.Method.Name];
ConstantPredicateVisitor method = new ConstantPredicateVisitor(methodName);
IPredicateVisitor parent = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]);
List <IPredicateVisitor> parameters = new List <IPredicateVisitor>();
if (methodCallExpression.Arguments[1].NodeType != ExpressionType.NewArrayInit)
{
return(null);
}
foreach (Expression part in ((NewArrayExpression)methodCallExpression.Arguments[1]).Expressions)
{
parameters.Add(predicateVisitorFactory.Create(part));
}
CollectionPredicateVisitor collection = new CollectionPredicateVisitor(parameters);
EqualPredicateVisitor equal = new EqualPredicateVisitor(method, collection);
Visitors.AccessorPredicateVisitor accessor = new Visitors.AccessorPredicateVisitor(equal, parent);
return(accessor);
}
private static IPredicateVisitor RemoveQuotes(IPredicateVisitor inner)
{
if (inner is ConstantPredicateVisitor constantVisitor)
{
ConstantPredicateVisitor constantWithoutQuotes = new ConstantPredicateVisitor(constantVisitor.Constant.RemoveQuotes(), true);
return(constantWithoutQuotes);
}
return(inner);
}
/// <summary>
/// Remove Quotes and make it constant predicate visitor with case sensitive
/// Attribute names must be case sensitive
/// </summary>
/// <param name="inner">The inner Constant Predicate Visitor</param>
/// <returns>Constant Predicate Visitor</returns>
private static IPredicateVisitor RemoveQuotesWithCaseSensitive(IPredicateVisitor inner)
{
if (inner is ConstantPredicateVisitor constantVisitor)
{
ConstantPredicateVisitor constantWithoutQuotes = new ConstantPredicateVisitor(constantVisitor.Constant.RemoveQuotes().WrapInBackticksIfNeeded(), true);
return(constantWithoutQuotes);
}
return(inner);
}
private static bool ArePropertiesEqual(ContainerPredicateVisitor left, ContainerPredicateVisitor right)
{
ConstantPredicateVisitor constantLeft = left.Parent as ConstantPredicateVisitor;
ConstantPredicateVisitor constantRight = right.Parent as ConstantPredicateVisitor;
if (constantLeft != null && constantRight != null)
{
return(constantLeft.Constant == constantRight.Constant);
}
return(false);
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
UnaryExpression unaryExpression = expression as UnaryExpression;
if (unaryExpression == null)
{
return(null);
}
// c.Key == "c14"
IPredicateVisitor inner = predicateVisitorFactory.Create(unaryExpression.Operand);
ConstantPredicateVisitor not = new ConstantPredicateVisitor(Mapping.Not);
return(new ContainerPredicateVisitor(inner, not));
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (methodCallExpression == null)
{
return(null);
}
string methodName = FilterMapping.AllowedMethods[methodCallExpression.Method.Name];
ConstantPredicateVisitor method = new ConstantPredicateVisitor(methodName);
IPredicateVisitor parent = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]);
return(new EqualPredicateVisitor(parent, method));
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MemberExpression memberExpression = expression as MemberExpression;
if (memberExpression == null)
{
return(null);
}
// Id
string currentName = memberExpression.Member.Name;
ConstantPredicateVisitor constant = new ConstantPredicateVisitor(currentName);
// c.Parent
IPredicateVisitor parent = predicateVisitorFactory.Create(memberExpression.Expression);
return(new ContainerPredicateVisitor(constant, parent));
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
if (expression is MethodCallExpression methodCallExpression)
{
string currentName = methodCallExpression.Method.Name;
string currentAccessor = ParseMethodAccessorName(currentName);
if (string.IsNullOrEmpty(currentAccessor))
{
return(predicateVisitorFactory.Create(methodCallExpression.Arguments[0]));
}
AccessorPredicateVisitor parentAccessor = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]) as AccessorPredicateVisitor;
ConstantPredicateVisitor constantPredicateVisitor = new ConstantPredicateVisitor(currentAccessor);
return(new AccessorPredicateVisitor(constantPredicateVisitor, parentAccessor));
}
throw new NotSupportedException();
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (methodCallExpression == null)
{
return(null);
}
string methodName = this.AllowedMethods[methodCallExpression.Method.Name];
ConstantPredicateVisitor methodNameConstant = new ConstantPredicateVisitor(methodName);
IPredicateVisitor methodCaller = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]);
IPredicateVisitor methodArguments = predicateVisitorFactory.Create(methodCallExpression.Arguments[1]);
ContainerPredicateVisitor container = new ContainerPredicateVisitor(methodArguments, methodNameConstant, true);
BinaryPredicateVisitor binary = new BinaryPredicateVisitor(methodCaller, string.Empty, container);
return(binary);
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (methodCallExpression == null)
{
return(null);
}
IPredicateVisitor inner = predicateVisitorFactory.Create(methodCallExpression.Arguments[1]);
var memberExpression = methodCallExpression.Arguments[0] as MemberExpression;
// Id
string currentName = memberExpression.Member.Name;
ConstantPredicateVisitor constant = new ConstantPredicateVisitor(currentName);
IPredicateVisitor parent = predicateVisitorFactory.Create(memberExpression);
return(CanBeCombined(parent) ? CombinePredicates(parent, inner) : new ContainerPredicateVisitor(inner, constant));
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MemberExpression memberExpression = expression as MemberExpression;
if (memberExpression == null)
{
return(null);
}
string currentName = memberExpression.Member.Name;
if (FilterMapping.MembersToSkip.Contains(currentName))
{
return(predicateVisitorFactory.Create(memberExpression.Expression));
}
ConstantPredicateVisitor constant = new ConstantPredicateVisitor(currentName);
IPredicateVisitor parent = predicateVisitorFactory.Create(memberExpression.Expression);
return(new Visitors.AccessorPredicateVisitor(constant, parent));
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
var dynamicInvoke = Expression.Lambda(expression, null).Compile().DynamicInvoke(null);
if (dynamicInvoke is DateTime dt)
{
return(new ConstantPredicateVisitor(dt.ToUtcIso8601().WrapInQuotes()));
}
if (dynamicInvoke is Enum enumResult)
{
return(new ConstantPredicateVisitor(enumResult.GetDescription().WrapInQuotes()));
}
if (dynamicInvoke.GetType().IsListOrArray())
{
var array = dynamicInvoke as IEnumerable;
var predicateVisitors = new List <IPredicateVisitor>();
if (array != null)
{
foreach (var item in array)
{
var visitor = new ConstantPredicateVisitor(item.ToString().WrapInQuotes());
predicateVisitors.Add(visitor);
}
}
return(new CollectionPredicateVisitor(predicateVisitors));
}
var compiledValue = dynamicInvoke.ToString();
if ((expression as MethodCallExpression)?.Arguments[0].Type == typeof(string))
{
compiledValue = compiledValue.WrapInQuotes();
}
return(new ConstantPredicateVisitor(compiledValue));
}
