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