I created a simple JsonRPC server (Netty socketServer) to perform certain tasks common to our team, but called from different networks. The server receives a JSON-RPC request from the (Netty socket client) client, searches for a method, and calls the method using the parameters passed. The method itself is the one that returns the JSON-RPC response. How can I create an architecture that allows me to find the required method using a JSON-RPC request and execute it. Need to create a mapping. 
Mansur Kurtov Mansur Kurtov
74 2
- what have you already created? and what do you want to add to your creation? - Mikhail Vaysman
- have you heard about reflection? - JVic
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1 answer
In my perverted head came such a decision. I have no doubt that there are more "correct" and beautiful ways.
public class Handler { private Map<String, Controller> controllers; public Handler() { controllers = new HashMap<>(); //ΡΠΎΠ·Π΄Π°Π΅ΠΌ ΡΠΊΠ·Π΅ΠΌΠΏΠ»ΡΡΡ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠΎΠ² Π½Π° ΡΠ°Π·Π½ΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄Ρ controllers.put("hello", input -> { /*some code*/ return "{result...}"; }); controllers.put("ping", input -> "{\"result\": \"pong\"...}"); controllers.put("foo", input -> new FooController().execute(input)); } public String handle(String input) { //ΠΈΡΠ΅ΠΌ Π½ΡΠΆΠ½ΡΠΉ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅Ρ Controller controller = controllers.get(parseMethodName(input)); if (controller != null) return controller.execute(input); else //Π½Π΅ Π½Π°ΡΠ»ΠΈ - Π²ΠΎΠ·Π²ΡΠ°ΡΠ°Π΅ΠΌ 404 ΠΈΠ»ΠΈ ΠΊΠΈΠ΄Π°Π΅ΠΌ ΠΈΡΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ return "404"; } private String parseMethodName(String input) { //ΡΡΡ ΠΌΠΎΠΆΠ½ΠΎ ΡΠ°ΡΠΏΠ°ΡΡΠΈΡΡ Π½Π°Π·Π²Π°Π½ΠΈΠ΅ ΠΌΠ΅ΡΠΎΠ΄Π° return "methodName"; } public class FooController implements Controller { @Override public String execute(String input) { return "bar"; } } public interface Controller { String execute(String input); } } 
Nikita Gordeev Nikita Gordeev
286 2 13
- Thank you. It was very helpful to me! - Mansur Kurtov
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