implement bencode base types

src/main/java/com/mykola2312/retracker/bencode/BInteger.java

@@ -0,0 +1,18 @@
+package com.mykola2312.retracker.bencode;
+
+public class BInteger extends BValue {
+	private long value;
+	
+	public BInteger(long value) {
+		this.value = value;
+	}
+	
+	@Override()
+	public BType getType() {
+		return BType.INTEGER;
+	}
+	
+	public long get() {
+		return value;
+	}
+}

src/main/java/com/mykola2312/retracker/bencode/BString.java

@@ -0,0 +1,25 @@
+package com.mykola2312.retracker.bencode;
+
+import java.nio.charset.StandardCharsets;
+
+public class BString extends BValue {
+	private byte[] bytes;
+	
+	public BString(byte[] bytes) {
+		this.bytes = bytes;
+	}
+	
+	@Override()
+	public BType getType() {
+		return BType.STRING;
+	}
+	
+	public byte[] get() {
+		return bytes;
+	}
+	
+	@Override()
+	public String toString() {
+		return new String(bytes, StandardCharsets.UTF_8);
+	}
+}

src/main/java/com/mykola2312/retracker/bencode/BValue.java

@@ -10,26 +10,27 @@ import java.util.Iterator;
  */
 
 abstract public class BValue implements Iterable<BValue> {
-	private BType type;
 	private BValue next = null;
 	private BValue child = null;
 	
-	protected BValue(BType type) {
-		this.type = type;
-	}
-	
-	public BType getType() {
-		return type;
-	}
+	abstract public BType getType();
 	
 	public BValue getNext() {
 		return next;
 	}
 	
+	public void setNext(BValue next) {
+		this.next = next;
+	}
+	
 	public BValue getChild() {
 		return child;
 	}
 	
+	public void setChild(BValue child) {
+		this.child = child;
+	}
+	
 	public Iterator<BValue> iterator() {
 		return new BValueIterator(child);
 	}