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.impl; 018 019import java.util.Collections; 020import java.util.Map; 021 022import org.apache.camel.spi.EndpointUtilizationStatistics; 023import org.apache.camel.util.LRUCacheFactory; 024 025public class DefaultEndpointUtilizationStatistics implements EndpointUtilizationStatistics { 026 027 private final int maxCapacity; 028 private final Map<String, Long> map; 029 030 @SuppressWarnings("unchecked") 031 public DefaultEndpointUtilizationStatistics(int maxCapacity) { 032 this.map = LRUCacheFactory.newLRUCache(16, maxCapacity, false); 033 this.maxCapacity = maxCapacity; 034 } 035 036 @Override 037 public int maxCapacity() { 038 return maxCapacity; 039 } 040 041 @Override 042 public int size() { 043 return map.size(); 044 } 045 046 @Override 047 public void onHit(String uri) { 048 map.compute(uri, (key, current) -> { 049 if (current == null) { 050 return 1L; 051 } else { 052 return ++current; 053 } 054 }); 055 } 056 057 @Override 058 public void remove(String uri) { 059 map.remove(uri); 060 } 061 062 @Override 063 public Map<String, Long> getStatistics() { 064 return Collections.unmodifiableMap(map); 065 } 066 067 @Override 068 public void clear() { 069 map.clear(); 070 } 071}