[fix] implement Command Interface for Example command

src/main/java/net/saltymc/eaa/handler/CommandHandler.java

@@ -57,7 +57,7 @@ public class CommandHandler implements HandlerInterface {
         LOGGER.debug("Valid Prefix received");
 
         for (Command command : commands){
-            if (command.acceptInput()) {        // Try execute command
+            if (command.acceptInput(args[0])) {        // Try execute command
                 command.run(commandSource, args);
                 LOGGER.debug("Executed following command: " + message);
                 return command.intercept();                 // if executed return interception flag

src/main/java/net/saltymc/eaa/handler/commands/Command.java

@@ -12,7 +12,7 @@ public interface Command {
 
     Set<String> getAlias();
 
-    boolean acceptInput();
+    boolean acceptInput(String command);
 
     /**
      * should message get intercepted and not send to Server?

src/main/java/net/saltymc/eaa/handler/commands/EaaCommand.java

@@ -6,10 +6,13 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
 
 public class EaaCommand implements Command {
 
     private static final String COMMAND = "echo";
+    private static final Set<String> ALIAS = new HashSet<>(Arrays.asList("e"));
     private static final boolean INTERCEPT = true;
     private static final Logger LOGGER = LogManager.getLogger();
 
@@ -35,6 +38,21 @@ public class EaaCommand implements Command {
         return true;
     }
 
+    @Override
+    public String getCommand() {
+        return COMMAND;
+    }
+
+    @Override
+    public Set<String> getAlias() {
+        return ALIAS;
+    }
+
+    @Override
+    public boolean acceptInput(String command) {
+        return (command.equalsIgnoreCase(getCommand()) || getAlias().contains(command.toLowerCase()));
+    }
+
     @Override
     public boolean intercept() {
         return INTERCEPT;