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Attribute

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AssemblyName = ARCCore
BaseTypes = PConcurrent
ClassNamespace = ARCCore
ClassType = StreamProcessor
CorrespondingEnumType = StreamProcessorP
Description = Implements the storage mechanism for AgoRapide.0x000D0x000A0x000D0x000ACoordinates the -PropertyStream- with other nodes.0x000D0x000A0x000D0x000ATODO: Implement discarding of data when not listening to incoming connections (saves memory usage).0x000D0x000ATODO: (search for this TODO in code to see where relevant to make changes).0x000D0x000A0x000D0x000AHas the following functionality:0x000D0x000A(note: Terminology is kept close to the one used for the MQTT protcol, although AgoRapide does not use MQTT in itself)0x000D0x000A0x000D0x000A1) Listen to incoming TCP/IP connections from other nodes. An incoming connections may be either for:0x000D0x000A   a) Incoming data (from a publishing client), for us to distribute.0x000D0x000A      (0x000D0x000A         as a -CoreDB- we would then store the data locally and          then distribute the data to all current downstream subscriber clients as relevant according to their respective subscriptions          (Note: For incoming data on an incoming connection an implicit -IsAll-, '+*', is assumed),          as a -ArmDB- we would then forward the data to a -CoreDB-      )0x000D0x000A      or for0x000D0x000A   b) Outgoing data, downstream subscribing client requests subscription0x000D0x000A      (0x000D0x000A        we would then typically be a -CoreDB- or a -ArmDB-.0x000D0x000A        After having reveived the -Subscription- and -ClientUpdatePosition-0x000D0x000A        from the subscribing client we will then keep the client continously up-to-date with new data.0x000D0x000A      ).0x000D0x000A0x000D0x000A2) Connect to other nodes. An outgoing connection may be either for0x000D0x000A   a) Publishing properties.       (         As a publishing -Client- the data would be locally in-application generated properties.0x000D0x000A         As an -ArmDB- the data would typically have been received over an incoming connection from a -Client-      )0x000D0x000A      or for0x000D0x000A   b) Receiving (as downstream subscribing client) data from upstream server.0x000D0x000A      (0x000D0x000A        We would then typically be an -ArmDB- or -Client-0x000D0x000A        We would send -Subscription- and -ClientUpdatePosition- as soon as connection is established.0x000D0x000A      )0x000D0x000A0x000D0x000A
Interfaces = IP0x003BIEnumerable0xoooo003CIKIP0xoooo003E0x003BIEnumerable0x003BIDisposable
InterfacesDirectlyImplemented = IDisposable
LongDescription = TODO: May 2020: The code in this class should be tidied up a bit before any more functionality is added.0x000D0x000A0x000D0x000ANote that the examples above do not take into scenarios like load-balancing and fault tolerance where -CoreDB- would be connecting among themselves.0x000D0x000A0x000D0x000ANote that information about outgoing connection and their purpose should be possible to distribute over the -PropertyStream-, therefore we have implemented the class -ActualConnection- (distribution itself not implemented as of Mar 2020).0x000D0x000A0x000D0x000ANote: A vision for AgoRapide is that load-balancing / fault tolerance and similar should be mostly a configuration issue around already in-built functionality in -ARCCore- / -StreamProcessor-. In other words the core functionality should provide a language which is suffiently rich in order for you to describe these different setups, there should be no need for additional C# code.0x000D0x000A0x000D0x000ANote how this class inherits -PConcurrent- which offers thread-safe access to properties (and is also able to -ExposingApplicationState- to outside).

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