| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| DefaultProbe |
|
| 1.3846153846153846;1.385 |
| 1 | /* ========================================== | |
| 2 | * JperfProbe : Java Performance Probes | |
| 3 | * ========================================== | |
| 4 | * | |
| 5 | * Project Info: http://jperfprobe.sourceforge.net/ | |
| 6 | * Project Lead: Tor-Erik Larsen (http://sourceforge.net/users/uptime62) | |
| 7 | * | |
| 8 | * (C) Copyright 2005, by Tor-Erik Larsen and Contributors. | |
| 9 | * | |
| 10 | * This library is free software; you can redistribute it and/or modify it | |
| 11 | * under the terms of the GNU Lesser General Public License as published by | |
| 12 | * the Free Software Foundation; either version 2.1 of the License, or | |
| 13 | * (at your option) any later version. | |
| 14 | * | |
| 15 | * This library is distributed in the hope that it will be useful, but | |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 17 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public | |
| 18 | * License for more details. | |
| 19 | * | |
| 20 | * You should have received a copy of the GNU Lesser General Public License | |
| 21 | * along with this library; if not, write to the Free Software Foundation, Inc., | |
| 22 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. | |
| 23 | */ | |
| 24 | ||
| 25 | package net.sf.jperfprobe; | |
| 26 | ||
| 27 | import org.slf4j.*; | |
| 28 | ||
| 29 | ||
| 30 | /** | |
| 31 | * DefaultProbe implements a Probe. It is possible to start and stop a probe | |
| 32 | * The probe is identified by a name. The probe uses nano seconds for measuring time. | |
| 33 | */ | |
| 34 | public class DefaultProbe implements Probe { | |
| 35 | 2461 | final Logger log = LoggerFactory.getLogger(DefaultProbe.class); |
| 36 | ||
| 37 | // indicates if the probe is running. | |
| 38 | private boolean running; | |
| 39 | ||
| 40 | // start time stamp of this probe. | |
| 41 | private long startTime; | |
| 42 | ||
| 43 | // elapsed time in probe. | |
| 44 | private long timeElapsed; | |
| 45 | ||
| 46 | // name of probe. | |
| 47 | private final String name; | |
| 48 | ||
| 49 | // probe enable flag. | |
| 50 | 2461 | private boolean enabled = true; |
| 51 | ||
| 52 | // name of the initiating thread | |
| 53 | //private String threadName; | |
| 54 | ||
| 55 | // how to get the time | |
| 56 | 2461 | private Time time = TimeFactory.getTime(); |
| 57 | ||
| 58 | /** | |
| 59 | * Constructor of probe | |
| 60 | * | |
| 61 | * @param name name of probe | |
| 62 | */ | |
| 63 | 2461 | public DefaultProbe(String name) { |
| 64 | 2461 | this.name = name; |
| 65 | //this.threadName = Thread.currentThread().getName(); | |
| 66 | 2461 | } |
| 67 | ||
| 68 | protected DefaultProbe(String name, Time tim) { | |
| 69 | 2454 | this(name); |
| 70 | 2454 | this.time = tim; |
| 71 | 2454 | } |
| 72 | ||
| 73 | /** | |
| 74 | * Get elapsed time for this probe in nanos. | |
| 75 | * | |
| 76 | * @return elapsed time | |
| 77 | */ | |
| 78 | public long getElapsed() { | |
| 79 | 9828 | return timeElapsed; |
| 80 | } | |
| 81 | ||
| 82 | /** | |
| 83 | * Start the probe. | |
| 84 | * The probe will only start if it is enabled and not running. | |
| 85 | * Nothing will happen if it is running. | |
| 86 | */ | |
| 87 | public void start() { | |
| 88 | 9832 | if (enabled && !running) { |
| 89 | 6634 | startTime = time.getNanos(); |
| 90 | 6634 | running = true; |
| 91 | } | |
| 92 | 9832 | } |
| 93 | ||
| 94 | /** | |
| 95 | * Stop the probe. It is not poosible to stop the probe if it is disabled | |
| 96 | */ | |
| 97 | public void stop() { | |
| 98 | 9829 | if (enabled) { |
| 99 | 9828 | long ti = this.time.getNanos() - startTime; |
| 100 | 9828 | if (running && ti > 0) { |
| 101 | // make sure timeelapsed > 0 | |
| 102 | 5525 | timeElapsed = ti; |
| 103 | 5525 | running = false; |
| 104 | } | |
| 105 | } | |
| 106 | 9829 | } |
| 107 | ||
| 108 | /** | |
| 109 | * Is the probe enabled. | |
| 110 | * | |
| 111 | * @return enabled flag | |
| 112 | */ | |
| 113 | public boolean isEnabled() { | |
| 114 | 29 | return enabled; |
| 115 | } | |
| 116 | ||
| 117 | /** | |
| 118 | * Enable the probe. | |
| 119 | */ | |
| 120 | public void enable() { | |
| 121 | 8 | enabled = true; |
| 122 | 8 | } |
| 123 | ||
| 124 | /** | |
| 125 | * Disable the probe. | |
| 126 | */ | |
| 127 | public void disable() { | |
| 128 | 15 | enabled = false; |
| 129 | 15 | running = false; |
| 130 | 15 | } |
| 131 | ||
| 132 | /** | |
| 133 | * Is the probe running (by start). | |
| 134 | * | |
| 135 | * @return running flag | |
| 136 | */ | |
| 137 | public boolean isRunning() { | |
| 138 | 12 | return running; |
| 139 | } | |
| 140 | ||
| 141 | public String getName() { | |
| 142 | 2005 | return name; |
| 143 | } | |
| 144 | ||
| 145 | public Time getTime() { | |
| 146 | 2 | return time; |
| 147 | } | |
| 148 | ||
| 149 | public void setTime(Time time) { | |
| 150 | 1 | this.time = time; |
| 151 | 1 | } |
| 152 | ||
| 153 | /** | |
| 154 | * Get all info from probe to string | |
| 155 | * | |
| 156 | * @return string with all probe info | |
| 157 | */ | |
| 158 | @Override | |
| 159 | public String toString() { | |
| 160 | 0 | return "probe name=" + name + ", elapsed:" + timeElapsed + " , running:" + running; |
| 161 | } | |
| 162 | } |