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.LinkedHashSet; 020import java.util.Set; 021 022import org.apache.camel.CamelContext; 023import org.apache.camel.spi.CamelContextTracker; 024import org.slf4j.Logger; 025import org.slf4j.LoggerFactory; 026 027/** 028 * A registry for {@link CamelContextTracker}. 029 */ 030public final class CamelContextTrackerRegistry { 031 032 /** 033 * The registry singleton 034 */ 035 public static final CamelContextTrackerRegistry INSTANCE = new CamelContextTrackerRegistry(); 036 037 private static final Logger LOG = LoggerFactory.getLogger(CamelContextTrackerRegistry.class); 038 039 private final Set<CamelContextTracker> trackers = new LinkedHashSet<>(); 040 041 private CamelContextTrackerRegistry() { 042 // hide constructor 043 } 044 045 public synchronized void addTracker(CamelContextTracker tracker) { 046 trackers.add(tracker); 047 } 048 049 public synchronized void removeTracker(CamelContextTracker tracker) { 050 trackers.remove(tracker); 051 } 052 053 synchronized void contextCreated(CamelContext camelContext) { 054 for (CamelContextTracker tracker : trackers) { 055 try { 056 if (tracker.accept(camelContext)) { 057 tracker.contextCreated(camelContext); 058 } 059 } catch (Exception e) { 060 LOG.warn("Error calling CamelContext tracker. This exception is ignored.", e); 061 } 062 } 063 } 064}