--- a/app/models/UserModel.java	Tue Oct 02 21:52:17 2012 +0900
+++ b/app/models/UserModel.java	Tue Oct 02 22:49:16 2012 +0900
@@ -1,18 +1,7 @@
 package models;
 
-import java.util.HashMap;
-import java.util.Iterator;
-
-
+import java.util.ArrayList;
 
-import org.codehaus.jackson.JsonNode;
-import org.codehaus.jackson.node.ArrayNode;
-import org.codehaus.jackson.node.JsonNodeFactory;
-
-import play.libs.Json;
-
-import com.tinkerpop.blueprints.Direction;
-import com.tinkerpop.blueprints.Edge;
 import com.tinkerpop.blueprints.Vertex;
 import com.tinkerpop.gremlin.java.GremlinPipeline;
 
@@ -26,15 +15,12 @@
 	private Object[] getEdgeInUser(String labels) {
 		GremlinPipeline<Vertex,Vertex> pipe = new GremlinPipeline<Vertex,Vertex>();
 		pipe.start(this.vertex).in(labels);
-		long length = pipe.count();
-		if (length == 0) return null;
-		Object[] requests = new Object[(int) length];
-		int i = 0;
-		for (Vertex v :pipe) {
-			requests[i] = v.getId();
-			i++;
+		ArrayList<Object> array = new ArrayList<Object>();
+		for (Vertex v : pipe) {
+			array.add(v.getId());
 		}
-		return requests;
+		if (array.size() == 0) return null;
+		return array.toArray();
 	}
 	
 	public Object[] getUserRequests() {
@@ -49,24 +35,6 @@
 		return null;
 	}
 
-	public void appendRequests(Vertex claimVertex) {
-		Object[] requestsObj = getUserRequests();
-		int length = requestsObj == null ?  0 : requestsObj.length;
-		Object[] newRequestsObj = new Object[length+1];
-		for (int i=0; i<length; i++ ) {
-			newRequestsObj[i] = requestsObj[i];
-		}
-		newRequestsObj[length] = claimVertex.getId(); 
-//		vertex.setProperty(REQUESTS, newRequestsObj);
-	}
-	
-/*
-	public Vertex setName(String name) {
-		this.vertex.setProperty(NAME, name);
-		return vertex;
-	}
-*/
-	
-	
+		
 	
 }