Add TerminalConsoleAppender for console prompts

proxy/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'java'
     id 'com.github.johnrengelman.shadow' version '2.0.4'
+    id 'de.sebastianboegl.shadow.transformer.log4j' version '2.1.1'
 }
 
 compileJava {
@@ -21,13 +22,20 @@ jar {
 dependencies {
     compile project(':velocity-api')
     compile project(':velocity-native')
+
     compile "io.netty:netty-codec:${nettyVersion}"
     compile "io.netty:netty-codec-http:${nettyVersion}"
     compile "io.netty:netty-handler:${nettyVersion}"
     compile "io.netty:netty-transport-native-epoll:${nettyVersion}"
     compile "io.netty:netty-transport-native-epoll:${nettyVersion}:linux-x86_64"
+
     compile "org.apache.logging.log4j:log4j-api:${log4jVersion}"
     compile "org.apache.logging.log4j:log4j-core:${log4jVersion}"
+
+    compile 'net.minecrell:terminalconsoleappender:1.1.1'
+    runtime 'net.java.dev.jna:jna:4.5.2' // Needed for JLine
+    runtime 'com.lmax:disruptor:3.4.2' // Async loggers
+
     testCompile "org.junit.jupiter:junit-jupiter-api:${junitVersion}"
     testCompile "org.junit.jupiter:junit-jupiter-engine:${junitVersion}"
 }

proxy/src/main/java/com/velocitypowered/proxy/Velocity.java

@@ -1,12 +1,13 @@
 package com.velocitypowered.proxy;
 
+import com.velocitypowered.proxy.console.VelocityConsole;
+
 public class Velocity {
-    public static void main(String... args) throws InterruptedException {
+    public static void main(String... args) {
         final VelocityServer server = VelocityServer.getServer();
         server.start();
 
         Runtime.getRuntime().addShutdownHook(new Thread(server::shutdown, "Shutdown thread"));
-
-        Thread.currentThread().join();
+        new VelocityConsole(server).start();
     }
 }

proxy/src/main/java/com/velocitypowered/proxy/VelocityServer.java

@@ -56,8 +56,7 @@ public class VelocityServer implements ProxyServer {
     private final CommandInvoker consoleCommandInvoker = new CommandInvoker() {
         @Override
         public void sendMessage(@Nonnull Component component) {
-            // TODO: TerminalConsoleAppender
-            logger.info(ComponentSerializers.PLAIN.serialize(component));
+            logger.info(ComponentSerializers.LEGACY.serialize(component));
         }
 
         @Override

proxy/src/main/java/com/velocitypowered/proxy/console/VelocityConsole.java

@@ -0,0 +1,39 @@
+package com.velocitypowered.proxy.console;
+
+import com.velocitypowered.proxy.VelocityServer;
+import net.minecrell.terminalconsole.SimpleTerminalConsole;
+import org.jline.reader.LineReader;
+import org.jline.reader.LineReaderBuilder;
+
+public final class VelocityConsole extends SimpleTerminalConsole {
+
+    private final VelocityServer server;
+
+    public VelocityConsole(VelocityServer server) {
+        this.server = server;
+    }
+
+    @Override
+    protected LineReader buildReader(LineReaderBuilder builder) {
+        return super.buildReader(builder
+            .appName("Velocity")
+            // TODO: Command completion
+        );
+    }
+
+    @Override
+    protected boolean isRunning() {
+        return !this.server.isShutdown();
+    }
+
+    @Override
+    protected void runCommand(String command) {
+        this.server.getCommandManager().execute(this.server.getConsoleCommandInvoker(), command);
+    }
+
+    @Override
+    protected void shutdown() {
+        this.server.shutdown();
+    }
+
+}

proxy/src/main/resources/log4j2.component.properties

@@ -0,0 +1 @@
+log4j2.contextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector

proxy/src/main/resources/log4j2.xml

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Configuration status="warn">
     <Appenders>
-        <Console name="Console" target="SYSTEM_OUT">
-            <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n"/>
-        </Console>
+        <TerminalConsole name="TerminalConsole">
+            <PatternLayout pattern="%highlightError{[%d{HH:mm:ss} %level]: %minecraftFormatting{%msg}%n%xEx}"/>
+        </TerminalConsole>
         <RollingRandomAccessFile name="File" fileName="logs/latest.log" filePattern="logs/%d{yyyy-MM-dd}-%i.log.gz"
                                  immediateFlush="false">
-            <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n"/>
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %minecraftFormatting{%msg}{strip}%n"/>
             <Policies>
                 <TimeBasedTriggeringPolicy/>
                 <OnStartupTriggeringPolicy/>
@@ -16,7 +16,7 @@
 
     <Loggers>
         <Root level="info">
-            <AppenderRef ref="Console"/>
+            <AppenderRef ref="TerminalConsole"/>
             <AppenderRef ref="File"/>
         </Root>
     </Loggers>