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.camel.management.mbean; 018 019import java.util.concurrent.atomic.AtomicLong; 020 021public class StatisticDelta extends Statistic { 022 023 private final AtomicLong value = new AtomicLong(); 024 private final AtomicLong lastValue = new AtomicLong(); 025 026 @Override 027 public void updateValue(long newValue) { 028 lastValue.set(value.longValue()); 029 value.set(newValue); 030 } 031 032 @Override 033 public long getValue() { 034 return value.get() - lastValue.get(); 035 } 036 037 @Override 038 public String toString() { 039 return "" + value.get(); 040 } 041 042 @Override 043 public boolean isUpdated() { 044 // this is okay 045 return true; 046 } 047 048 @Override 049 public void reset() { 050 value.set(0); 051 lastValue.set(0); 052 } 053 054}