001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.devutils.inspector; 018 019import org.apache.wicket.Session; 020import org.apache.wicket.core.util.lang.WicketObjects; 021import org.apache.wicket.model.IModel; 022import org.apache.wicket.util.lang.Bytes; 023 024/** 025 * Calculates 026 */ 027public class SessionSizeModel implements IModel<Bytes> 028{ 029 private static final long serialVersionUID = 1L; 030 031 /** 032 * Construct. 033 * 034 */ 035 public SessionSizeModel() 036 { 037 } 038 039 @Override 040 public Bytes getObject() 041 { 042 Bytes result = null; 043 if (Session.exists()) 044 { 045 long sizeOfSession = Session.get().getSizeInBytes(); 046 if (sizeOfSession > -1) 047 { 048 result = Bytes.bytes(sizeOfSession); 049 } 050 } 051 052 053 return result; 054 } 055}