/// <summary>
/// Deserializes given stream to hypermedia asynchronously.
/// </summary>
/// <param name="inputStream">
/// The input stream from which hypermedia would be deserialized.
/// </param>
/// <returns>
/// Task with Hypermedia.
/// </returns>
public static async Task <Hypermedia> DeserializeAsync(Stream inputStream)
{
return(await Task <Hypermedia> .Run(() =>
{
List <byte> buffer = new List <byte>();
bool isEndOfStream = false;
while (!isEndOfStream)
{
int b = inputStream.ReadByte();
if (b != -1)
{
buffer.Add((byte)b);
}
else
{
isEndOfStream = true;
}
}
string input = System.Text.Encoding.UTF8.GetString(buffer.ToArray());
var deserializer = SerializationVersionTools.GetSerializationVersion(SerializationVersionTools.GetVersion(input));
return deserializer.DeserializeFromString(input);
}).ConfigureAwait(false));
}
private bool TryEntitiesListDeserializer(string input, Hypermedia parent, int count)
{
List <IEntity> entities = new List <IEntity>();
if (!DeserializationTools.CheckStringFormat(input, true))
{
return(false);
}
input = input.TrimStart('[').TrimEnd(']').TrimStart('\r').TrimEnd('\n').TrimStart('\n').TrimEnd('\r');
List <string> stringList = new List <string>();
bool isEntitiesValid = TrySplitEntitiesList(input, parent, out stringList);
if (!isEntitiesValid)
{
return(false);
}
if (stringList.Count != count)
{
return(false);
}
bool result = true;
for (int i = 0; i < count; ++i)
{
string type = new string(stringList[i].Skip(1).TakeWhile(s => s != ':').ToArray());
int index = int.Parse(new string(stringList[i].Skip(type.Length + 2).TakeWhile(s => s != ')').ToArray()));
if (index != i)
{
return(false);
}
switch (type)
{
case "file":
if (!File.IsSerializedStringValid(new string(stringList[i].SkipWhile(s => s != '[').ToArray()), parent))
{
result = false;
}
break;
case "directory":
if (!Directory.IsSerializedStringValid(new string(stringList[i].SkipWhile(s => s != '[').ToArray()), parent))
{
result = false;
}
break;
case "hypermedia":
var deserializer = SerializationVersionTools.GetSerializationVersion(SerializationVersionTools.GetVersion(new string(stringList[i].SkipWhile(s => s != '[').ToArray())));
if (!deserializer.IsSerializedStringValid(new string(stringList[i].SkipWhile(s => s != '[').ToArray()), parent))
{
result = false;
}
break;
default:
return(false);
}
}
return(result);
}
private List <IEntity> EntitiesListDeserializer(string input, Hypermedia parent, int count)
{
List <IEntity> entities = new List <IEntity>();
DeserializationTools.CheckStringFormat(input, false);
input = input.TrimStart('[').TrimEnd(']').TrimStart('\r').TrimEnd('\n').TrimStart('\n').TrimEnd('\r');
var stringList = SplitEntitiesList(input, parent);
if (stringList.Count != count)
{
throw new ArgumentException("Parsed string list does not match expected length", "count");
}
for (int i = 0; i < count; ++i)
{
string type = new string(stringList[i].Skip(1).TakeWhile(s => s != ':').ToArray());
int index = int.Parse(new string(stringList[i].Skip(type.Length + 2).TakeWhile(s => s != ')').ToArray()));
if (index != i)
{
throw new ArgumentException("Possible serialization error encountered. Unexpected sequence", "input");
}
switch (type)
{
case "file":
entities.Add(File.DeserializeFromString(new string(stringList[i].SkipWhile(s => s != '[').ToArray()), parent, parent.Encoding));
break;
case "directory":
entities.Add(Directory.DeserializeFromString(new string(stringList[i].SkipWhile(s => s != '[').ToArray()), parent, parent.Encoding));
break;
case "hypermedia":
var deserializer = SerializationVersionTools.GetSerializationVersion(SerializationVersionTools.GetVersion(new string(stringList[i].SkipWhile(s => s != '[').ToArray())));
entities.Add(deserializer.DeserializeFromString(new string(stringList[i].SkipWhile(s => s != '[').ToArray()), parent));
break;
default:
throw new ArgumentException("Possible serialization error encountered. Unexpected type", "input");
}
}
if (count != entities.Count)
{
throw new ArgumentException("Serialized and deserialized collection length does not match", "count");
}
return(entities);
}
