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 java.util.Date;
020    import java.util.concurrent.atomic.AtomicLong;
021    
022    import org.springframework.jmx.export.annotation.ManagedAttribute;
023    import org.springframework.jmx.export.annotation.ManagedOperation;
024    import org.springframework.jmx.export.annotation.ManagedResource;
025    
026    @ManagedResource(description = "PerformanceCounter", currencyTimeLimit = 15)
027    public class PerformanceCounter extends Counter {
028    
029        private AtomicLong numCompleted = new AtomicLong(0L);
030        private double minProcessingTime;
031        private double maxProcessingTime;
032        private double totalProcessingTime;
033        private Date lastExchangeCompletionTime;
034        private Date lastExchangeFailureTime;
035        private Date firstExchangeCompletionTime;
036        private Date firstExchangeFailureTime;
037    
038        @Override
039        @ManagedOperation(description = "Reset counters")
040        public synchronized void reset() {
041            super.reset();
042            numCompleted.set(0L);
043            minProcessingTime = 0.0;
044            maxProcessingTime = 0.0;
045            totalProcessingTime = 0.0;
046            lastExchangeCompletionTime = null;
047            lastExchangeFailureTime = null;
048            firstExchangeCompletionTime = null;
049            firstExchangeFailureTime = null;
050        }
051    
052        @ManagedAttribute(description = "Number of successful exchanges")
053        public long getNumCompleted() throws Exception {
054            return numCompleted.get();
055        }
056    
057        @ManagedAttribute(description = "Number of failed exchanges")
058        public long getNumFailed() throws Exception {
059            return numExchanges.get() - numCompleted.get();
060        }
061    
062        @ManagedAttribute(description = "Min Processing Time [milliseconds]")
063        public synchronized double getMinProcessingTimeMillis() throws Exception {
064            return minProcessingTime;
065        }
066    
067        @ManagedAttribute(description = "Mean Processing Time [milliseconds]")
068        public synchronized double getMeanProcessingTimeMillis() throws Exception {
069            long count = numCompleted.get();
070            return count > 0 ? totalProcessingTime / count : 0.0;
071        }
072    
073        @ManagedAttribute(description = "Max Processing Time [milliseconds]")
074        public synchronized double getMaxProcessingTimeMillis() throws Exception {
075            return maxProcessingTime;
076        }
077    
078        @ManagedAttribute(description = "Total Processing Time [milliseconds]")
079        public synchronized double getTotalProcessingTimeMillis() throws Exception {
080            return totalProcessingTime;
081        }
082    
083        @ManagedAttribute(description = "Last Exchange Completed Timestamp")
084        public synchronized Date getLastExchangeCompletionTime() {
085            return lastExchangeCompletionTime;
086        }
087    
088        @ManagedAttribute(description = "First Exchange Completed Timestamp")
089        public synchronized Date getFirstExchangeCompletionTime() {
090            return firstExchangeCompletionTime;
091        }
092    
093        @ManagedAttribute(description = "Last Exchange Failed Timestamp")
094        public synchronized Date getLastExchangeFailureTime() {
095            return lastExchangeFailureTime;
096        }
097    
098        @ManagedAttribute(description = "First Exchange Failed Timestamp")
099        public synchronized Date getFirstExchangeFailureTime() {
100            return firstExchangeFailureTime;
101        }
102    
103        /**
104         * This method is called when an exchange has been processed successfully.
105         * 
106         * @param time in milliseconds it spent on processing the exchange
107         */
108        public synchronized void completedExchange(double time) {
109            increment();
110            numCompleted.incrementAndGet();
111    
112            totalProcessingTime += time;
113            if (minProcessingTime <= 0 || time < minProcessingTime) {
114                minProcessingTime = time;
115            }
116            if (time > maxProcessingTime) {
117                maxProcessingTime = time;
118            }
119            
120            Date timestamp = new Date();
121            if (firstExchangeCompletionTime == null) {
122                firstExchangeCompletionTime = timestamp;
123            }
124            lastExchangeCompletionTime = timestamp;
125        }
126    
127        /**
128         * This method is called when an exchange has been processed and failed.
129         */
130        public synchronized void failedExchange() {
131            increment();
132    
133            Date timestamp = new Date();
134            if (firstExchangeFailureTime == null) {
135                firstExchangeFailureTime = timestamp;
136            }
137            lastExchangeFailureTime = timestamp;
138        }
139    }