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     */
017    package org.apache.camel.management;
018    
019    import org.apache.camel.CamelContext;
020    import org.apache.camel.spi.ManagementStrategy;
021    import org.apache.camel.util.ServiceHelper;
022    import org.slf4j.Logger;
023    import org.slf4j.LoggerFactory;
024    
025    /**
026     * Factory for creating {@link ManagementStrategy}
027     */
028    public class ManagementStrategyFactory {
029        private final transient Logger log = LoggerFactory.getLogger(getClass());
030    
031        public ManagementStrategy create(CamelContext context, boolean disableJMX) {
032            ManagementStrategy answer = null;
033    
034            if (disableJMX || Boolean.getBoolean(JmxSystemPropertyKeys.DISABLED)) {
035                log.info("JMX is disabled.");
036            } else {
037                try {
038                    answer = new ManagedManagementStrategy(context, new DefaultManagementAgent(context));
039                    // must start it to ensure JMX works and can load needed Spring JARs
040                    ServiceHelper.startService(answer);
041                    // prefer to have it at first strategy
042                    context.getLifecycleStrategies().add(0, new DefaultManagementLifecycleStrategy(context));
043                    log.info("JMX enabled.");
044                } catch (Exception e) {
045                    answer = null;
046                    log.warn("Cannot create JMX lifecycle strategy. Will fallback and disable JMX.", e);
047                }
048            }
049    
050            if (answer == null) {
051                answer = new DefaultManagementStrategy(context);
052            }
053            return answer;
054        }
055    }