public void Handle(Message message)
{
if (message.GetPropertyObjectID == null)
{
throw new ArgumentNullException("GetPropertyObjectID is null");
}
var entry = this.m_ObjectStorage.Find(message.GetPropertyObjectID).FirstOrDefault();
if (entry == null)
{
throw new InvalidOperationException("Get property message received but we don't own the object!");
}
var obj = entry.Value;
var mi = obj.GetType().GetMethod("get_" + message.GetPropertyPropertyName + "__Distributed0", BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(
obj.GetType().FullName,
"get_" + message.GetPropertyPropertyName + "__Distributed0");
}
var value = DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, new Type[0], new object[] { });
var client = this.m_ClientLookup.Lookup(message.Sender.IPEndPoint);
client.Send(this.m_MessageConstructor.ConstructGetPropertyResultMessage(message.ID, value));
}
public void Handle(Message message)
{
var entry = this.m_ObjectStorage.Find(message.SetPropertyObjectID).FirstOrDefault();
if (entry == null)
{
throw new InvalidOperationException("Set property message received but we don't own the object!");
}
var obj = entry.Value;
var mi = obj.GetType().GetMethod("set_" + message.SetPropertyPropertyName + "__Distributed0", BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, "set_" + message.SetPropertyPropertyName + "__Distributed0");
}
var value = this.m_ObjectWithTypeSerializer.Deserialize(message.SetPropertyPropertyValue);
DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, new Type[0], new[] { value });
this.m_ObjectStorage.UpdateOrPut(new LiveEntry
{
Key = message.SetPropertyObjectID,
Value = obj,
Owner = this.m_LocalNode.Self
});
var client = this.m_ClientLookup.Lookup(message.Sender.IPEndPoint);
client.Send(this.m_MessageConstructor.ConstructSetPropertyConfirmationMessage(message.ID));
}
public object GetProperty(string id, string property)
{
this.AssertBound();
var messageConstructor = this.GetService <IMessageConstructor>();
var objectWithTypeSerializer = this.GetService <IObjectWithTypeSerializer>();
var automaticRetry = this.GetService <IAutomaticRetry>();
var entry = this.GetHandlerAndObjectByID(id);
var obj = entry.Value;
if (this.Architecture == Architecture.PeerToPeer && entry.Owner != this.Self)
{
// We need to request the value from the node that owns it.
var getMessage = messageConstructor.ConstructGetPropertyMessage(ID.NewHash(id), property);
var message = automaticRetry.SendWithRetry(
entry.ClientHandler,
getMessage,
x => x.Type == MessageType.GetPropertyResult && x.GetPropertyMessageID == getMessage.ID,
this.Timeout,
this.Retries);
return(objectWithTypeSerializer.Deserialize(message.GetPropertyResult));
}
if (this.Architecture == Architecture.ServerClient)
{
if (!this.IsServer && this.Caching != Caching.PushOnChange)
{
// We are the client, but we need to request the value
// from the server.
var getMessage = messageConstructor.ConstructGetPropertyMessage(ID.NewHash(id), property);
var message = automaticRetry.SendWithRetry(
entry.ClientHandler,
getMessage,
x => x.Type == MessageType.GetPropertyResult && x.GetPropertyMessageID == getMessage.ID,
this.Timeout,
this.Retries);
return(objectWithTypeSerializer.Deserialize(message.GetPropertyResult));
}
}
var mi = obj.GetType().GetMethod("get_" + property + "__Distributed0", BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, "get_" + property + "__Distributed0");
}
return(DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, new Type[0], new object[] { }));
}
public void Handle(Message message)
{
if (message.InvokeTypeArguments == null)
{
message.InvokeTypeArguments = new string[0];
}
if (message.InvokeArguments == null)
{
message.InvokeArguments = new ObjectWithType[0];
}
var entry = this.m_ObjectStorage.Find(message.InvokeObjectID).FirstOrDefault();
if (entry == null)
{
throw new InvalidOperationException("Invoke message received but we don't own the object!");
}
var obj = entry.Value;
var mi = obj.GetType().GetMethod(message.InvokeMethod, BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, message.InvokeMethod);
}
var targs = message.InvokeTypeArguments.Select(Type.GetType).ToArray();
var args = message.InvokeArguments.Select(x => this.m_ObjectWithTypeSerializer.Deserialize(x)).ToArray();
var allowed = false;
if (this.m_LocalNode.Architecture == Architecture.PeerToPeer)
{
// In peer-to-peer, all methods are callable.
allowed = true;
}
else if (this.m_LocalNode.Architecture == Architecture.ServerClient)
{
if (message.Sender == this.m_LocalNode.Self)
{
// This message is coming from the server.
allowed = true;
}
else
{
var originalName = mi.Name.Substring(0, mi.Name.Length - "__Distributed0".Length);
var originalMethod = obj.GetType().GetMethod(originalName, BindingFlagsCombined.All);
// The client is calling this method, ensure they are allowed to call it.
allowed = originalMethod.GetCustomAttributes(typeof(ClientCallableAttribute), false).Any();
}
}
if (!allowed)
{
// If the sender is not permitted to call this method, we just return (we
// don't even bother giving them a response since they're either using an
// out-of-date client or attempting to bypass security).
throw new InvalidOperationException("Received a call to invoke " + message.InvokeMethod + " on " + obj.GetType());
}
var result = DpmEntrypoint.InvokeDynamic(
obj.GetType(),
mi,
obj,
targs,
args);
var client = this.m_ClientLookup.Lookup(message.Sender.IPEndPoint);
client.Send(this.m_MessageConstructor.ConstructInvokeResultMessage(message.ID, result));
}
public DList(IEnumerable <T> collection)
{
DpmEntrypoint.Construct(this);
this.m_List = new List <T>(collection);
}
public DList(int capacity)
{
DpmEntrypoint.Construct(this);
this.m_List = new List <T>(capacity);
}
public DList()
{
DpmEntrypoint.Construct(this);
}
public void SetProperty(string id, string property, object value)
{
this.AssertBound();
var objectStorage = this.GetService <IObjectStorage>();
var clientLookup = this.GetService <IClientLookup>();
var messageConstructor = this.GetService <IMessageConstructor>();
var automaticRetry = this.GetService <IAutomaticRetry>();
var entry = this.GetHandlerAndObjectByID(id);
var obj = entry.Value;
var mi = obj.GetType().GetMethod("set_" + property + "__Distributed0", BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, "set_" + property + "__Distributed0");
}
if (this.Architecture == Architecture.PeerToPeer)
{
if (entry.Owner == this.Self)
{
DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, new Type[0], new[] { value });
objectStorage.UpdateOrPut(new LiveEntry {
Key = ID.NewHash(id), Value = obj, Owner = this.Self
});
return;
}
var clientHandler = clientLookup.Lookup(entry.Owner.IPEndPoint);
var setPropertyMessage = messageConstructor.ConstructSetPropertyMessage(ID.NewHash(id), property, value);
automaticRetry.SendWithRetry(
clientHandler,
setPropertyMessage,
x =>
x.Type == MessageType.SetPropertyConfirmation && x.SetPropertyMessageID == setPropertyMessage.ID,
this.Timeout,
this.Retries);
return;
}
if (this.Architecture == Architecture.ServerClient)
{
// If we are a client, we can't set properties.
if (!this.IsServer)
{
throw new MemberAccessException("Only servers may set the '" + property + "' property.");
}
DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, new Type[0], new[] { value });
objectStorage.UpdateOrPut(new LiveEntry {
Key = ID.NewHash(id), Value = obj, Owner = this.Self
});
if (this.Caching == Caching.PushOnChange)
{
// We need to push the new value out to clients.
foreach (var client in clientLookup.GetAll().Where(x => !object.Equals(x.Key, this.Self.IPEndPoint)))
{
client.Value.Send(
messageConstructor.ConstructSetPropertyMessage(ID.NewHash(id), property, value));
}
}
return;
}
throw new NotSupportedException();
}
public object Invoke(string id, string method, Type[] targs, object[] args)
{
this.AssertBound();
var messageConstructor = this.GetService <IMessageConstructor>();
var objectWithTypeSerializer = this.GetService <IObjectWithTypeSerializer>();
var automaticRetry = this.GetService <IAutomaticRetry>();
var entry = this.GetHandlerAndObjectByID(id);
var obj = entry.Value;
if (this.Architecture == Architecture.PeerToPeer)
{
// In peer-to-peer modes, methods are always invoked locally.
var mi = obj.GetType().GetMethod(method, BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, method);
}
return(DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, targs, args));
}
if (this.Architecture == Architecture.ServerClient)
{
if (this.IsServer)
{
// The server is always permitted to call methods.
var mi = obj.GetType().GetMethod(method, BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, method);
}
return(DpmEntrypoint.InvokeDynamic(obj.GetType(), mi, obj, targs, args));
}
else
{
// We must see if the client is permitted to call the specified method.
var mi = obj.GetType()
.GetMethod(method.Substring(0, method.IndexOf("__Distributed0", System.StringComparison.Ordinal)), BindingFlagsCombined.All);
if (mi == null)
{
throw new MissingMethodException(obj.GetType().FullName, method);
}
if (mi.GetCustomAttributes(typeof(ClientIgnorableAttribute), false).Count() != 0)
{
return(null);
}
if (!mi.GetCustomAttributes(typeof(ClientCallableAttribute), false).Any())
{
throw new MemberAccessException(
"The method '" + method + "' is not accessible to client machines.");
}
// If we get to here, then we're permitted to call the method, but we still need
// to remote it to the server.
var invokeMessage = messageConstructor.ConstructInvokeMessage(ID.NewHash(id), method, targs, args);
var message = automaticRetry.SendWithRetry(
entry.ClientHandler,
invokeMessage,
x => x.Type == MessageType.InvokeResult && x.InvokeMessageID == invokeMessage.ID,
this.Timeout,
this.Retries);
return(objectWithTypeSerializer.Deserialize(message.InvokeResult));
}
}
throw new NotSupportedException();
}
