public EasyTableItemBinding(ParameterInfo parameter, EasyTableContext context, BindingProviderContext bindingContext)
{
_parameter = parameter;
_context = context;
// set up binding for '{ItemId}'-type bindings
if (_context.ResolvedId != null)
{
_bindingTemplate = BindingTemplate.FromString(_context.ResolvedId);
_bindingTemplate.ValidateContractCompatibility(bindingContext.BindingDataContract);
}
}
internal static bool IsValidQueryType(Type paramType, EasyTableContext context)
{
if (paramType.IsGenericType &&
paramType.GetGenericTypeDefinition() == typeof(IMobileServiceTableQuery <>))
{
// IMobileServiceTableQuery<JObject> is not supported.
Type coreType = TypeUtility.GetCoreType(paramType);
if (coreType != typeof(JObject) &&
EasyTableUtility.IsCoreTypeValidItemType(paramType, context))
{
return(true);
}
}
return(false);
}
internal static bool IsValidCollectorType(Type paramType, EasyTableContext context)
{
if (paramType.IsGenericType)
{
Type genericType = paramType.GetGenericTypeDefinition();
if (genericType == typeof(ICollector <>) || genericType == typeof(IAsyncCollector <>))
{
Type coreType = TypeUtility.GetCoreType(paramType);
if (IsValidEasyTableOutputType(coreType, context))
{
return(true);
}
}
}
return(false);
}
internal static bool IsValidOutType(Type paramType, EasyTableContext context)
{
if (paramType.IsByRef)
{
Type coreType = paramType.GetElementType();
if (coreType.IsArray)
{
coreType = coreType.GetElementType();
}
if (IsValidEasyTableOutputType(coreType, context))
{
return(true);
}
}
return(false);
}
internal static bool IsMobileServiceTableType(Type paramType, EasyTableContext context)
{
if (paramType == typeof(IMobileServiceTable) &&
!string.IsNullOrEmpty(context.ResolvedTableName))
{
return(true);
}
if (paramType.IsGenericType &&
paramType.GetGenericTypeDefinition() == typeof(IMobileServiceTable <>))
{
if (EasyTableUtility.IsCoreTypeValidItemType(paramType, context))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Evaluates whether the specified type is valid for use with EasyTables.
/// If the type is <see cref="JObject"/>, then the ResolvedTableName property on
/// <see cref="EasyTableAttribute"/> is required.
/// If the type is not <see cref="JObject"/>, then it must contain a single public
/// string 'Id' property.
/// </summary>
/// <param name="itemType">The type to evaluate.</param>
/// <param name="context">The <see cref="EasyTableContext"/>.</param>
/// <returns></returns>
public static bool IsValidItemType(Type itemType, EasyTableContext context)
{
// We cannot support a type of JObject without a TableName.
if (itemType == typeof(JObject))
{
return(!string.IsNullOrEmpty(context.ResolvedTableName));
}
// POCO types must have a string id property (case insensitive).
IEnumerable <PropertyInfo> idProperties = itemType.GetProperties()
.Where(p => string.Equals("id", p.Name, StringComparison.OrdinalIgnoreCase) && p.PropertyType == typeof(string));
if (idProperties.Count() != 1)
{
return(false);
}
return(true);
}
public Task <IBinding> TryCreateAsync(BindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
ParameterInfo parameter = context.Parameter;
EasyTableAttribute attribute = parameter.GetEasyTableAttribute();
if (attribute == null)
{
return(Task.FromResult <IBinding>(null));
}
if (_easyTableConfig.MobileAppUri == null &&
string.IsNullOrEmpty(attribute.MobileAppUri))
{
throw new InvalidOperationException(
string.Format(CultureInfo.CurrentCulture,
"The Easy Tables Uri must be set either via a '{0}' app setting, via the EasyTableAttribute.MobileAppUri property or via EasyTableConfiguration.MobileAppUri.",
EasyTablesConfiguration.AzureWebJobsMobileAppUriName));
}
EasyTableContext easyTableContext = CreateContext(_easyTableConfig, attribute, _nameResolver);
IBindingProvider compositeProvider = new CompositeBindingProvider(new IBindingProvider[]
{
new EasyTableOutputBindingProvider(_jobHostConfig, easyTableContext),
new EasyTableQueryBinding(context.Parameter, easyTableContext),
new EasyTableTableBinding(parameter, easyTableContext),
new EasyTableItemBinding(parameter, easyTableContext, context)
});
return(compositeProvider.TryCreateAsync(context));
}
public EasyTableTableValueProvider(ParameterInfo parameter, EasyTableContext context)
{
_parameter = parameter;
_context = context;
}
public EasyTableTableBinding(ParameterInfo parameter, EasyTableContext context)
{
_parameter = parameter;
_context = context;
}
internal static async Task SetValueInternalAsync(JObject originalItem, object newItem, EasyTableContext context)
{
JObject currentValue = null;
bool isJObject = newItem.GetType() == typeof(JObject);
if (isJObject)
{
currentValue = newItem as JObject;
}
else
{
currentValue = JObject.FromObject(newItem);
}
if (HasChanged(originalItem, currentValue))
{
// make sure it's not the Id that has changed
if (!string.Equals(GetId(originalItem), GetId(currentValue), StringComparison.Ordinal))
{
throw new InvalidOperationException("Cannot update the 'Id' property.");
}
if (isJObject)
{
IMobileServiceTable table = context.Client.GetTable(context.ResolvedTableName);
await table.UpdateAsync((JObject)newItem);
}
else
{
// If TableName is specified, add it to the internal table cache. Now items of this type
// will operate on the specified TableName.
if (!string.IsNullOrEmpty(context.ResolvedTableName))
{
context.Client.AddToTableNameCache(newItem.GetType(), context.ResolvedTableName);
}
IMobileServiceTable <T> table = context.Client.GetTable <T>();
await table.UpdateAsync((T)newItem);
}
}
}
public EasyTableItemValueBinder(ParameterInfo parameter, EasyTableContext context, string id)
{
_parameter = parameter;
_context = context;
_id = id;
}
public EasyTableAsyncCollector(EasyTableContext context)
{
_context = context;
}
public EasyTableOutputBindingProvider(JobHostConfiguration jobHostConfig, EasyTableContext easyTableContext)
{
_jobHostConfig = jobHostConfig;
_easyTableContext = easyTableContext;
}
internal static bool IsValidEasyTableOutputType(Type paramType, EasyTableContext context)
{
// Output bindings also support objects as long as ResolvedTableName is valid
return(EasyTableUtility.IsValidItemType(paramType, context) ||
(paramType == typeof(object) && !string.IsNullOrEmpty(context.ResolvedTableName)));
}
/// <summary>
/// Gets the core type of the specified type. Then validates that it is
/// usable with Easy Tables.
/// </summary>
/// <param name="type">The type to evaluate.</param>
/// <param name="context">The <see cref="EasyTableContext"/>.</param>
/// <returns></returns>
public static bool IsCoreTypeValidItemType(Type type, EasyTableContext context)
{
Type coreType = TypeUtility.GetCoreType(type);
return(IsValidItemType(coreType, context));
}
