will use spring boot for json-rpc endpoints

tracker/build.gradle

@@ -10,18 +10,32 @@ buildscript {
     }
 }
 
+plugins {
+	id 'org.springframework.boot' version '2.2.6.RELEASE'
+}
+
 apply plugin : 'application'
+apply plugin : 'io.spring.dependency-management'
+
 application {
     mainClassName = 'com.muwire.tracker.Tracker'
-    applicationDefaultJvmArgs = ['-Djava.util.logging.config.file=logging.properties','-Xmx256M']
+    applicationDefaultJvmArgs = ['-Djava.util.logging.config.file=logging.properties','-Xmx256M',"-Dbuild.version=${project.version}"]
     applicationName = 'mwtrackerd'
 }
 
 apply plugin : 'com.github.johnrengelman.shadow'
 
+springBoot {
+    buildInfo {
+        properties {
+            version = "${project.version}"
+            name = "mwtrackerd"
+        }
+    }
+}
 
 dependencies {
     compile project(":core")
-    compile 'com.github.arteam:simple-json-rpc-server:1.0'
+    compile 'com.github.briandilley.jsonrpc4j:jsonrpc4j:1.5.3'
 }
 

tracker/src/main/groovy/com/muwire/tracker/Tracker.groovy

@@ -4,7 +4,6 @@ import java.nio.charset.StandardCharsets
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
 
-import com.github.arteam.simplejsonrpc.server.JsonRpcServer
 import com.muwire.core.Core
 import com.muwire.core.MuWireSettings
 import com.muwire.core.UILoadedEvent
@@ -12,10 +11,10 @@ import com.muwire.core.files.AllFilesLoadedEvent
 
 class Tracker {
     
-    private static final String VERSION = "0.6.12"
-    
     private static final ExecutorService EXECUTOR_SERVICE = Executors.newCachedThreadPool()
     
+    private static final String VERSION = System.getProperty("build.version")
+    
     public static void main(String [] args) {
         println "Launching MuWire Tracker version $VERSION"
         
@@ -74,9 +73,6 @@ class Tracker {
         
         InetAddress toBind = InetAddress.getByName(p['jsonrpc.iface'])
         int port = Integer.parseInt(p['jsonrpc.port'])
-        ServerSocket ss = new ServerSocket(port, Integer.MAX_VALUE, toBind)
-        println "json rpc listening on $toBind:$port"
-        JsonRpcServer rpcServer = new JsonRpcServer()
         
         Core core = new Core(muSettings, home, VERSION)
         
@@ -93,33 +89,6 @@ class Tracker {
         } as Runnable)
         coreStarter.start()
               
-        
+        // TODO: rewrite as Spring app
-        try {
-            while(true) {
-                Socket s = ss.accept()
-                println "accepted connection from " + s.getInetAddress()
-                EXECUTOR_SERVICE.submit {
-                    try {
-                        def reader = new BufferedReader(new InputStreamReader(s.getInputStream()))
-                        String request;
-                        while((request = reader.readLine()) != null) {
-                            println "got request \"$request\""
-                            String response = rpcServer.handle(request, trackerService)
-                            println "sending response \"$response\""
-                            s.getOutputStream().newWriter("UTF-8").write(response)
-                            s.getOutputStream().write("\n".getBytes(StandardCharsets.US_ASCII))
-                            s.getOutputStream().flush()
-                        }
-                    } catch (Exception bad) {
-                        bad.printStackTrace()
-                    } finally {
-                        s.close()
-                    }
-                } as Runnable
-            }
-        } catch (Exception bad) {
-            bad.printStackTrace()
-        }
-        
     }
 }

tracker/src/main/groovy/com/muwire/tracker/TrackerService.groovy

@@ -1,11 +1,8 @@
 package com.muwire.tracker
 
-import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcMethod
-import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcService
 import com.muwire.core.Core
 import com.muwire.core.UILoadedEvent
 
-@JsonRpcService
 class TrackerService {
     
     private final TrackerStatus status = new TrackerStatus()
@@ -16,7 +13,6 @@ class TrackerService {
         status.status = "Starting"
     }
     
-    @JsonRpcMethod
     public TrackerStatus status() {
         status.connections = core.getConnectionManager().getConnections().size()
         status