Restful API for bgpd
diff --git a/src/main/java/net/floodlightcontroller/bgproute/Ptree.java b/src/main/java/net/floodlightcontroller/bgproute/Ptree.java
index d53789e..dcb6e83 100644
--- a/src/main/java/net/floodlightcontroller/bgproute/Ptree.java
+++ b/src/main/java/net/floodlightcontroller/bgproute/Ptree.java
@@ -13,7 +13,7 @@
 		maxKeyOctets = bit_to_octet(max_key_bits); 
 		refCount = 0;
 	}
-
+	
 	public PtreeNode acquire(byte [] key) {
 		return acquire(key, maxKeyBits);
 	}
@@ -278,6 +278,10 @@
 		
 		return add;
 	}
+	//add by linpp
+	private void clear() {
+	
+	}
 	
 	private void node_remove(PtreeNode node) {
 		PtreeNode child;