public override async Task WriteAsync(RedisConvert convert, Type objectType, object value, Namespace name, TimeSpan?TTL = null)
{
//Prepare the options
RedisOptionAttribute options = objectType.GetCustomAttribute <RedisOptionAttribute>();
if (options == null)
{
options = new RedisOptionAttribute();
}
//Store it as a simple string
if (options.SingleValueKey)
{
await convert.Client.StoreStringAsync(name.Build(), value.ToString(), TTL);
return;
}
//The content that will be written to the HashMap in bulk
Dictionary <string, string> hashmap = new Dictionary <string, string>();
//Iterate over every property
foreach (var property in objectType.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
var ignoreAttribute = property.GetCustomAttribute <RedisIgnoreAttribute>();
if (ignoreAttribute != null)
{
continue;
}
//Prepare some property values
var propertyName = property.Name;
var propertyAttribute = property.GetCustomAttribute <RedisPropertyAttribute>();
if (propertyAttribute != null)
{
propertyName = propertyAttribute.DisplayName ?? property.Name;
}
//Prepare the serializer
var serializer = convert.GetSerializerForType(property.PropertyType, property: propertyAttribute);
Debug.Assert(serializer != null);
//Push the name and then serialize it
name.Push(propertyName);
convert.SetHashMapBuffer(hashmap);
await serializer.WriteAsync(convert, property.PropertyType, property.GetValue(value), name, TTL);
name.Pop();
}
//Flush our buffer
convert.SetHashMapBuffer(hashmap);
await convert.FlushHashMapAsync(name, TTL);
}
/// <summary>
/// Serializes a object into a single dictionary
/// </summary>
/// <param name="buffer">The dictionary that all the keys will be inserted into</param>
/// <param name="obj">The object to parse</param>
/// <param name="subkey">The current subkey</param>
public static void Serialize(Dictionary <string, string> buffer, object obj, string subkey = "")
{
//Prepare the type and initial options
Type type = obj.GetType();
//See if we should override the options
RedisOptionAttribute options = type.GetCustomAttribute <RedisOptionAttribute>();
//Iterate over every property
foreach (var property in type.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
SerializeMember(buffer, new SerializeMember(property), obj, subkey);
}
//Iterate over every field
foreach (var field in type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
SerializeMember(buffer, new SerializeMember(field), obj, subkey);
}
}
/// <summary>
/// Gets the serializer for the given type.
/// </summary>
/// <param name="type"></param>
/// <param name="options"></param>
/// <param name="property"></param>
/// <returns></returns>
public RedisSerializer GetSerializerForType(Type type, RedisOptionAttribute options = null, RedisPropertyAttribute property = null)
{
if (options != null && options.Serializer != null)
{
return((RedisSerializer)Activator.CreateInstance(options.Serializer));
}
if (property != null && property.Serializer != null)
{
return((RedisSerializer)Activator.CreateInstance(property.Serializer));
}
if (type.IsPrimitive || type.IsEnum || type == typeof(string))
{
return(new PrimitiveSerializer());
}
if (type.IsGenericType)
{
if (type.GetGenericTypeDefinition() == typeof(Dictionary <,>))
{
return(new DictionarySerializer());
}
if (type.GetGenericTypeDefinition() == typeof(HashSet <>))
{
return(new HashSetSerializer());
}
if (type.GetGenericTypeDefinition() == typeof(List <>))
{
return(new ListSerializer());
}
}
return(new ClassSerializer());
}
/// <summary>
/// Deserializes a dictionary into a object
/// </summary>
/// <param name="buffer">The data that was received by the redis</param>
/// <param name="type">The type of target object</param>
/// <param name="reference">The target object</param>
/// <param name="subkey">The subkey (optional)</param>
/// <returns></returns>
private static bool Deserialize(Dictionary <string, string> buffer, Type type, ref object reference, string subkey = "")
{
Debug.Assert(type != null);
Debug.Assert(reference != null);
Debug.Assert(buffer != null);
//Prepare the type and initial options
bool hasElements = false;
//See if we should override the options
RedisOptionAttribute options = type.GetCustomAttribute <RedisOptionAttribute>();
if (options == null)
{
options = new RedisOptionAttribute();
}
//Create a new instance of the type
foreach (var property in type.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
if (DeserializeMember(buffer, type, new SerializeMember(property), ref reference, subkey, options))
{
hasElements = true;
}
}
foreach (var field in type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
if (DeserializeMember(buffer, type, new SerializeMember(field), ref reference, subkey, options))
{
hasElements = true;
}
}
//Return the element state
return(hasElements);
}
private static bool DeserializeMember(Dictionary <string, string> buffer, Type type, SerializeMember member, ref object reference, string subkey, RedisOptionAttribute options)
{
//Ignore elements with ignore attributes
var ignoreAttribute = member.GetCustomAttribute <RedisIgnoreAttribute>();
if (ignoreAttribute != null)
{
return(false);
}
//Ignore generated blocks
var generatedAttribute = member.GetCustomAttribute <System.Runtime.CompilerServices.CompilerGeneratedAttribute>();
if (generatedAttribute != null)
{
return(false);
}
//Serialize the member if it has an attribute or is forced to serialize.
var attribute = member.GetCustomAttribute <RedisPropertyAttribute>();
if (attribute == null)
{
if (member.IsField)
{
return(false);
}
attribute = new RedisPropertyAttribute(member.Name);
}
//Prepare its key
string key = PrepareKey(attribute, member.Name, subkey);
//If class, we have to do something completely different
//If it has a serialize attribute, we want to construct its serializer
//var serializerAttribute = member.GetCustomAttribute<RedisSerializerAttribute>();
//if (serializerAttribute != null)
//{
// //They have a custom serializer, so lets construct its type
// var constructor = serializerAttribute.Serializer.GetConstructor(new Type[0]);
// if (constructor != null)
// {
// var serializer = constructor.Invoke(new object[0]) as RedisSerializer;
// if (serializer != null)
// {
// object v = serializer.Deserialize(buffer, member, key);
// member.SetValue(reference, v);
// return true;
// }
//
// throw new Exception("Bad Serialization on the custom serializer! Failed to cast into a RedisSerializer");
// }
//
// throw new Exception("Bad Serialization on the custom serializer! Failed to find a constructor with 0 elements");
//}
//If the property is a string, just cast ez pz
if (member.IsPrimitive || member.IsString || member.IsEnum)
{
string primval;
if (buffer.TryGetValue(key, out primval))
{
if (member.IsPrimitive || member.IsEnum)
{
object v = TypeDescriptor.GetConverter(member.Type).ConvertFromString(primval);
member.SetValue(reference, v);
}
else
{
member.SetValue(reference, primval);
}
return(true);
}
return(false);
}
//We have to do it the classical way with a subkey
//var propvalConstructor = propertyType.GetConstructor(new Type[0]);
//object propval = propvalConstructor.Invoke(new object[0]);
object propval = null;
try
{
propval = Activator.CreateInstance(member.Type);
}
catch (Exception e)
{
Console.WriteLine("Exception while creating a instance!");
throw e;
}
//Serialize
if (propval != null && Deserialize(buffer, member.Type, ref propval, key + "."))
{
member.SetValue(reference, propval);
return(true);
}
return(false);
}
