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.mbean;
018    
019    import java.util.Date;
020    import java.util.HashMap;
021    import java.util.Map;
022    import java.util.concurrent.atomic.AtomicLong;
023    import javax.management.Notification;
024    
025    import org.apache.camel.Exchange;
026    import org.apache.camel.Message;
027    import org.apache.camel.Processor;
028    import org.apache.camel.Traceable;
029    import org.apache.camel.api.management.NotificationSender;
030    import org.apache.camel.api.management.NotificationSenderAware;
031    import org.apache.camel.model.ProcessorDefinition;
032    import org.apache.camel.processor.interceptor.TraceEventHandler;
033    import org.apache.camel.processor.interceptor.TraceInterceptor;
034    import org.apache.camel.processor.interceptor.Tracer;
035    import org.apache.camel.util.MessageHelper;
036    
037    public final class JMXNotificationTraceEventHandler implements TraceEventHandler, NotificationSenderAware {
038        private static final int MAX_MESSAGE_LENGTH = 60;
039        private final AtomicLong num = new AtomicLong();
040        private final Tracer tracer;
041        private NotificationSender notificationSender;
042    
043        public JMXNotificationTraceEventHandler(Tracer tracer) {
044            this.tracer = tracer;
045        }
046    
047        public void traceExchangeOut(ProcessorDefinition<?> node, Processor target, TraceInterceptor traceInterceptor, Exchange exchange, Object traceState) throws Exception {
048        }
049    
050        public Object traceExchangeIn(ProcessorDefinition<?> node, Processor target, TraceInterceptor traceInterceptor, Exchange exchange) throws Exception {
051            return null;
052        }
053    
054        public void traceExchange(ProcessorDefinition<?> node, Processor target, TraceInterceptor traceInterceptor, Exchange exchange) throws Exception {
055            if (notificationSender != null && tracer.isJmxTraceNotifications()) {
056                String body = MessageHelper.extractBodyForLogging(exchange.getIn(), "", false, true, tracer.getTraceBodySize());
057                
058                if (body == null) {
059                    body = "";
060                }
061                String message = body.substring(0, Math.min(body.length(), MAX_MESSAGE_LENGTH));
062                Map<String, Object> tm = createTraceMessage(node, exchange, body);
063    
064                Notification notification = new Notification("TraceNotification", exchange.toString(), num.getAndIncrement(), System.currentTimeMillis(), message);
065                notification.setUserData(tm);
066    
067                notificationSender.sendNotification(notification);
068            }
069    
070        }
071    
072        private Map<String, Object> createTraceMessage(ProcessorDefinition<?> node, Exchange exchange, String body) {
073            Map<String, Object> mi = new HashMap<String, Object>();
074            mi.put("ExchangeId", exchange.getExchangeId());
075            mi.put("EndpointURI", getEndpointUri(node));
076            mi.put("TimeStamp", new Date(System.currentTimeMillis()));
077            mi.put("Body", body);
078    
079            Message message = exchange.getIn();
080            Map<String, Object> sHeaders = message.getHeaders();
081            Map<String, Object> sProperties = exchange.getProperties();
082    
083            Map<String, String> headers = new HashMap<String, String>();
084            for (String key : sHeaders.keySet()) {
085                headers.put(key, message.getHeader(key, String.class));
086            }
087            mi.put("Headers", headers);
088    
089            Map<String, String> properties = new HashMap<String, String>();
090            for (String key : sProperties.keySet()) {
091                properties.put(key, exchange.getProperty(key, String.class));
092            }
093            mi.put("Properties", properties);
094            return mi;
095        }
096    
097        private String getEndpointUri(ProcessorDefinition<?> node) {
098            if (node instanceof Traceable) {
099                Traceable tr = (Traceable)node;
100                return tr.getTraceLabel();
101            } else {
102                return node.getLabel();
103            }
104        }
105    
106        @Override
107        public void setNotificationSender(NotificationSender sender) {
108            this.notificationSender = sender;
109        }
110    
111    }