001 package org.apache.fulcrum.yaafi.interceptor.jamon;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements. See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership. The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License. You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied. See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022 import com.jamonapi.Monitor;
023 import com.jamonapi.MonitorFactory;
024 import org.apache.fulcrum.yaafi.interceptor.util.MethodToStringBuilderImpl;
025
026 import java.lang.reflect.Method;
027
028 /**
029 * Ecapsulating the JAMon 1.x related API calls
030 *
031 * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a>
032 */
033
034 public class Jamon1PerformanceMonitorImpl implements JamonPerformanceMonitor
035 {
036 /** is monitoring enabled */
037 private boolean isActive;
038
039 /** the method currenty monitored */
040 private Method method;
041
042 /** the global JAMON monitor */
043 private Monitor monitor;
044
045 /**
046 * Constructor.
047 *
048 * @param serviceName the service name of the service being monitored
049 * @param method the method to be monitored
050 * @param isActive is this an active monitor
051 */
052 public Jamon1PerformanceMonitorImpl(String serviceName, Method method, Boolean isActive) {
053 this.method = method;
054 this.isActive = isActive.booleanValue();
055 }
056
057 /**
058 * Start the monitor.
059 */
060 public void start()
061 {
062 if(this.isActive)
063 {
064 MethodToStringBuilderImpl methodToStringBuilder = new MethodToStringBuilderImpl(this.method, 0);
065 String methodSignature = methodToStringBuilder.toString();
066 this.monitor = MonitorFactory.start(methodSignature);
067 }
068 }
069
070 /**
071 * Start the monitor.
072 */
073 public void stop()
074 {
075 if(this.isActive)
076 {
077 this.monitor.stop();
078 }
079 }
080
081 /**
082 * Stop the monitor based on an Throwable.
083 */
084 public void stop(Throwable throwable)
085 {
086 this.stop();
087 }
088
089 /**
090 * Create a performance report
091 */
092 public String createReport() throws Exception
093 {
094 return MonitorFactory.getRootMonitor().getReport();
095 }
096 }