--- a/src/jungle/test/codesegment/practice/TestCodeSegment.java	Wed Jun 26 19:03:19 2013 +0900
+++ b/src/jungle/test/codesegment/practice/TestCodeSegment.java	Thu Jun 27 21:02:58 2013 +0900
@@ -12,6 +12,7 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.NodePath;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultNodePath;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultTreeEditor;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.DefaultTreeOperationLog;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.TreeOperationLog;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.NodeOperation;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.TreeOperation;
@@ -24,6 +25,7 @@
 import alice.codesegment.CodeSegment;
 import alice.datasegment.CommandType;
 import alice.datasegment.Receiver;
+import alice.test.topology.aquarium.FishPoint;
 
 import org.msgpack.MessagePack;
 import org.msgpack.type.Value;
@@ -36,6 +38,7 @@
 	Receiver arg1 = ids.create(CommandType.PEEK);
 	
 	public TestCodeSegment() {
+		arg1.setKey("log");
 		jungle.createNewTree("tree");
 	}
 	
@@ -44,13 +47,11 @@
 		System.out.println("type = " + arg1.type);
 		System.out.println("index = " + arg1.index);
 		System.out.println("data = " + arg1.getVal());
-		System.out.println(((Value)arg1.getVal()).getType());
+		System.out.println(arg1.getVal().getType());
 		
-		MessagePack msgpack = new MessagePack();
-		Value logContainerValue = (Value) arg1.getVal();
+		DefaultTreeOperationLogContainer convertedLogContainer = arg1.asClass(DefaultTreeOperationLogContainer.class);
 		TreeOperationLog convertedLog = null;
 		try {
-			DefaultTreeOperationLogContainer convertedLogContainer = msgpack.convert(logContainerValue, DefaultTreeOperationLogContainer.class);
 			convertedLog = convertedLogContainer.convert();
 		} catch (IOException e) {
 			e.printStackTrace();