static bool BuildObjectCompare(Comparison comparison, string value, PropertyAccessor propertyFunc, T target)
{
var propertyValue = propertyFunc.Func(target);
var typedValue = TypeConverter.ConvertStringToType(value, propertyFunc.Type);
var compare = Compare(propertyValue, typedValue);
switch (comparison)
{
case Comparison.Equal:
return(compare == 0);
case Comparison.NotEqual:
return(compare != 0);
case Comparison.GreaterThan:
return(compare > 0);
case Comparison.GreaterThanOrEqual:
return(compare >= 0);
case Comparison.LessThanOrEqual:
return(compare <= 0);
case Comparison.LessThan:
return(compare < 0);
}
throw new NotSupportedException($"Invalid comparison operator '{comparison}'.");
}
static Func <T, bool> BuildStringIn(PropertyAccessor property, string[] values, StringComparison stringComparison)
{
return(target =>
{
var propertyValue = (string)property.Func(target);
return values.Any(x => string.Equals(x, propertyValue, stringComparison));
});
}
static bool BuildStringCompare(Comparison comparison, string value, PropertyAccessor propertyFunc, T x, StringComparison stringComparison)
{
var propertyValue = (string)propertyFunc.Func(x);
switch (comparison)
{
case Comparison.Equal:
return(string.Equals(propertyValue, value, stringComparison));
case Comparison.NotEqual:
return(!string.Equals(propertyValue, value, stringComparison));
case Comparison.Contains:
return(propertyValue?.IndexOf(value, stringComparison) >= 0);
case Comparison.StartsWith:
return(propertyValue != null && propertyValue.StartsWith(value, stringComparison));
case Comparison.EndsWith:
return(propertyValue != null && propertyValue.EndsWith(value, stringComparison));
}
throw new NotSupportedException($"Invalid comparison operator '{comparison}'.");
}
static Func <T, bool> BuildObjectIn(PropertyAccessor property, string[] values)
{
return(target =>
{
var type = property.Type;
var propertyValue = property.Func(target);
if (type == typeof(Guid))
{
var value = (Guid)propertyValue;
return values.Select(Guid.Parse)
.Any(x => x == value);
}
if (type == typeof(int))
{
var value = (int)propertyValue;
return values.Select(int.Parse)
.Any(x => x == value);
}
if (type == typeof(short))
{
var value = (short)propertyValue;
return values.Select(short.Parse)
.Any(x => x == value);
}
if (type == typeof(long))
{
var value = (long)propertyValue;
return values.Select(long.Parse)
.Any(x => x == value);
}
if (type == typeof(uint))
{
var value = (uint)propertyValue;
return values.Select(uint.Parse)
.Any(x => x == value);
}
if (type == typeof(ushort))
{
var value = (ushort)propertyValue;
return values.Select(ushort.Parse)
.Any(x => x == value);
}
if (type == typeof(ulong))
{
var value = (ulong)propertyValue;
return values.Select(ulong.Parse)
.Any(x => x == value);
}
if (type == typeof(DateTime))
{
var value = (DateTime)propertyValue;
return values.Select(DateTime.Parse)
.Any(x => x == value);
}
if (type == typeof(DateTimeOffset))
{
var value = (DateTimeOffset)propertyValue;
return values.Select(DateTimeOffset.Parse)
.Any(x => x == value);
}
throw new Exception($"Could not convert strings to {type.FullName} ");
});
}
