/// <summary>
/// Generates a Conditional Expression that will retrieve the given entity value by type and set it into the current property.
/// </summary>
/// <param name="type">The entity type</param>
/// <param name="property">The property to deserialize into</param>
/// <param name="instanceParam">An Expression that represents the entity instance</param>
/// <param name="currentEntityProperty">An Expression that represents the current EntityProperty expression</param>
/// <returns></returns>
private static Expression GeneratePropertyReadExpressionByType(Type type, PropertyInfo property, Expression instanceParam, Expression currentEntityProperty)
{
if (property.PropertyType == typeof(string))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.String)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_StringPI.FindGetProp())));
}
else if (property.PropertyType == typeof(byte[]))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Binary)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_BinaryPI.FindGetProp())));
}
else if (property.PropertyType == typeof(bool?))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Boolean)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_BoolPI.FindGetProp())));
}
else if (property.PropertyType == typeof(bool))
{
MethodInfo hasValuePI = typeof(bool?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(bool?).FindProperty("Value").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Boolean)),
Expression.IfThen(Expression.IsTrue(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_BoolPI.FindGetProp()), hasValuePI)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_BoolPI.FindGetProp()), valuePI))));
}
else if (property.PropertyType == typeof(DateTime?))
{
MethodInfo hasValuePI = typeof(DateTimeOffset?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(DateTimeOffset?).FindProperty("Value").FindGetProp();
MethodInfo utcDateTimePI = typeof(DateTimeOffset).FindProperty("UtcDateTime").FindGetProp();
ParameterExpression tempVal = Expression.Variable(typeof(DateTime?), "tempVal");
ConditionalExpression valToSetExpr = Expression.IfThenElse(
// entityProperty.DateTimeOffsetValue.HasValue
Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DateTimeOffsetPI.FindGetProp()), hasValuePI),
// then //entityProperty.DateTimeOffsetValue.Value.UtcDateTime
Expression.Assign(tempVal, Expression.TypeAs(Expression.Call(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DateTimeOffsetPI.FindGetProp()), valuePI), utcDateTimePI), typeof(DateTime?))),
// else
Expression.Assign(tempVal, Expression.TypeAs(Expression.Constant(null), typeof(DateTime?))));
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.DateTime)),
Expression.Block(new[] { tempVal },
valToSetExpr,
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), tempVal)));
}
else if (property.PropertyType == typeof(DateTime))
{
MethodInfo valuePI = typeof(DateTimeOffset?).FindProperty("Value").FindGetProp();
MethodInfo utcDateTimePI = typeof(DateTimeOffset).FindProperty("UtcDateTime").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.DateTime)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(),
// entityProperty.DateTimeOffsetValue.Value.UtcDateTime
Expression.Call(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DateTimeOffsetPI.FindGetProp()), valuePI), utcDateTimePI)));
}
else if (property.PropertyType == typeof(DateTimeOffset?))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.DateTime)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_DateTimeOffsetPI.FindGetProp())));
}
else if (property.PropertyType == typeof(DateTimeOffset))
{
MethodInfo hasValuePI = typeof(DateTimeOffset?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(DateTimeOffset?).FindProperty("Value").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.DateTime)),
Expression.IfThen(Expression.IsTrue(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DateTimeOffsetPI.FindGetProp()), hasValuePI)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DateTimeOffsetPI.FindGetProp()), valuePI))));
}
else if (property.PropertyType == typeof(double?))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Double)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_DoublePI.FindGetProp())));
}
else if (property.PropertyType == typeof(double))
{
MethodInfo hasValuePI = typeof(double?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(double?).FindProperty("Value").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Double)),
Expression.IfThen(Expression.IsTrue(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DoublePI.FindGetProp()), hasValuePI)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_DoublePI.FindGetProp()), valuePI))));
}
else if (property.PropertyType == typeof(Guid?))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Guid)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_GuidPI.FindGetProp())));
}
else if (property.PropertyType == typeof(Guid))
{
MethodInfo hasValuePI = typeof(Guid?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(Guid?).FindProperty("Value").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Guid)),
Expression.IfThen(Expression.IsTrue(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_GuidPI.FindGetProp()), hasValuePI)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_GuidPI.FindGetProp()), valuePI))));
}
else if (property.PropertyType == typeof(int?))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Int32)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_Int32PI.FindGetProp())));
}
else if (property.PropertyType == typeof(int))
{
MethodInfo hasValuePI = typeof(int?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(int?).FindProperty("Value").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Int32)),
Expression.IfThen(Expression.IsTrue(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_Int32PI.FindGetProp()), hasValuePI)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_Int32PI.FindGetProp()), valuePI))));
}
else if (property.PropertyType == typeof(long?))
{
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Int64)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(currentEntityProperty, EntityProperty_Int64PI.FindGetProp())));
}
else if (property.PropertyType == typeof(long))
{
MethodInfo hasValuePI = typeof(long?).FindProperty("HasValue").FindGetProp();
MethodInfo valuePI = typeof(long?).FindProperty("Value").FindGetProp();
return Expression.IfThen(Expression.Equal(Expression.Call(currentEntityProperty, EntityProperty_PropTypeGetter), Expression.Constant(EdmType.Int64)),
Expression.IfThen(Expression.IsTrue(Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_Int64PI.FindGetProp()), hasValuePI)),
Expression.Call(Expression.Convert(instanceParam, type), property.FindSetProp(), Expression.Call(Expression.Call(currentEntityProperty, EntityProperty_Int64PI.FindGetProp()), valuePI))));
}
return null;
}
/// <summary>
/// Determines if the given property should be skipped based on its name, if it exposes a public getter and setter, and if the IgnoreAttribute is not defined.
/// </summary>
/// <param name="property">The PropertyInfo of the property to check</param>
/// <param name="operationContext">An <see cref="OperationContext"/> object used to track the execution of the operation.</param>
/// <returns>True if the property should be skipped, false otherwise. </returns>
private static bool ShouldSkipProperty(PropertyInfo property, OperationContext operationContext)
{
// reserved properties
string propName = property.Name;
if (propName == TableConstants.PartitionKey ||
propName == TableConstants.RowKey ||
propName == TableConstants.Timestamp ||
propName == TableConstants.Etag)
{
return true;
}
MethodInfo setter = property.FindSetProp();
MethodInfo getter = property.FindGetProp();
// Enforce public getter / setter
if (setter == null || !setter.IsPublic || getter == null || !getter.IsPublic)
{
Logger.LogInformational(operationContext, SR.TraceNonPublicGetSet, property.Name);
return true;
}
// Skip static properties
if (setter.IsStatic)
{
return true;
}
// properties with [IgnoreAttribute]
#if WINDOWS_RT
if (property.GetCustomAttribute(typeof(IgnorePropertyAttribute)) != null)
#else
if (Attribute.IsDefined(property, typeof(IgnorePropertyAttribute)))
#endif
{
Logger.LogInformational(operationContext, SR.TraceIgnoreAttribute, property.Name);
return true;
}
return false;
}