Add listen methods to Locker to simplify event listening code

src/dev/peerat/framework/Locker.java

@@ -5,6 +5,10 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.LinkedBlockingQueue;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+import dev.peerat.framework.Locker.Key;
 
 public class Locker<V>{
 	
@@ -55,5 +59,51 @@ public class Locker<V>{
 		}
 	}
 	
+	public void listen(Consumer<V> action){
+		Key key = new Key();
+		init(key);
+		try {
+			while(true){
+				lock(key);
+				V value = getValue(key);
+				action.accept(value);
+			}
+		}catch(Exception e){}
+		remove(key);
+	}
+	
+	public void listen(Supplier<Boolean> condition,Consumer<V> action){
+		Key key = new Key();
+		init(key);
+		try {
+			while(condition.get()){
+				lock(key);
+				V value = getValue(key);
+				action.accept(value);
+			}
+		}catch(Exception e){}
+		remove(key);
+	}
+	
+	public Thread listenAsync(Consumer<V> action){
+		Thread thread = new Thread(new Runnable(){
+			public void run(){
+				listen(action);
+			}
+		});
+		thread.start();
+		return thread;
+	}
+	
+	public Thread listenAsync(Supplier<Boolean> condition,Consumer<V> action){
+		Thread thread = new Thread(new Runnable(){
+			public void run(){
+				listen(condition, action);
+			}
+		});
+		thread.start();
+		return thread;
+	}
+	
 	public static class Key{ public Key(){} }
 }

src/dev/peerat/framework/utils/json/Json.java

@@ -2,7 +2,7 @@ package dev.peerat.framework.utils.json;
 
 public class Json{
 	
-	public void buildValue(StringBuilder builder, Object value){
+	void buildValue(StringBuilder builder, Object value){
 		if(value == null) builder.append("null");
 		else if(value instanceof  String){
 			builder.append('"');

src/dev/peerat/framework/utils/json/JsonArray.java

@@ -1,6 +1,7 @@
 package dev.peerat.framework.utils.json;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
 
@@ -12,6 +13,10 @@ public class JsonArray extends Json{
 		this.list = new ArrayList<>();
 	}
 	
+	public Collection<Object> toList(){
+		return this.list;
+	}
+	
 	public void add(Object value){
 		this.list.add(value);
 	}

src/dev/peerat/framework/utils/json/JsonMap.java

@@ -4,6 +4,7 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Set;
 
 public class JsonMap extends Json{
 	
@@ -13,6 +14,10 @@ public class JsonMap extends Json{
 		this.map = new HashMap<>();
 	}
 	
+	public Set<Entry<String, Object>> entries(){
+		return this.map.entrySet();
+	}
+	
 	public void set(String key, Object value){
 		this.map.put(key, value);
 	}