added SRSC

src/bin/srsc/SiteRessourceController.hx

@@ -0,0 +1,104 @@
+package bin.srsc;
+
+import kernel.log.Log;
+import lib.KVStore;
+import bin.srsc.PackageTypes;
+import kernel.net.Package;
+import kernel.ps.ProcessHandle;
+import kernel.ps.Process;
+
+/**
+	The SiteRessourceController is responsible for the management of ressources on the site.
+	It makes sure that ressources are have a unique id and that they are not duplicated.
+	It also keeps track of the responsible NetID for each ressource. Kinda like a DNS.
+**/
+class SiteRessourceController implements Process {
+	public static inline final SITE_CONTROLLER_RESSOURCE_MANAGER_PROTO:String = "srsc";
+
+	private var handle:ProcessHandle;
+	private var ressources:Map<String, NetworkID>;
+
+	public function new() {}
+
+	public function run(handle:ProcessHandle) {
+		this.handle = handle;
+
+		load();
+
+		// Register proto
+		kernel.net.Net.instance.registerProto(SITE_CONTROLLER_RESSOURCE_MANAGER_PROTO, this.handleMsg);
+	}
+
+	private function handleMsg(pkg:Package) {
+		/*
+			There are 3 types of messages:
+			- Register a new ressource name 
+			- Unregister a ressource name 
+			- Get the responsible NetID for a ressource name 
+		 */
+
+		switch (pkg.data.type) {
+			case "register":
+				pkg.respond(handleRegister(pkg.data));
+			case "unregister":
+				pkg.respond(handleUnregister(pkg.data));
+			case "get":
+				pkg.respond(handleGet(pkg.data));
+			default:
+				handle.writeLine("Unknown message type: " + pkg.data.type);
+		}
+	}
+
+	private function handleGet(data:GetRequest):GetResponse {
+		var res = get(data.name);
+		return {success: res != null, netID: res};
+	}
+
+	private function handleRegister(data:RegisterRequest):RegisterResponse {
+		var res = register(data.name, data.netID);
+		return {success: res};
+	}
+
+	private function handleUnregister(data:UnregisterRequest):UnregisterResponse {
+		unregister(data.name);
+		return {success: true};
+	}
+
+	public function register(name:String, netID:NetworkID):Bool {
+		if (ressources.exists(name) && ressources.get(name) != netID) {
+			return false;
+		}
+
+		ressources.set(name, netID);
+		save();
+		return true;
+	}
+
+	public function unregister(name:String) {
+		if (ressources.exists(name)) {
+			ressources.remove(name);
+		}
+		save();
+	}
+
+	public function get(name:String):Null<NetworkID> {
+		return ressources.get(name);
+	}
+
+	private function load() {
+		var store = KVStore.getStoreForClass();
+		var data:Null<Map<String, NetworkID>> = store.get("ressources");
+
+		if (data != null) {
+			this.ressources = data;
+		} else {
+			this.ressources = new Map<String, NetworkID>();
+		}
+	}
+
+	private function save() {
+		var store = KVStore.getStoreForClass();
+		store.set("ressources", this.ressources);
+		store.save();
+	}
+}