Source Code Cross Referenced for MessageServiceStatistics.java in  » ESB » open-esb » com » sun » jbi » messaging » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ESB » open esb » com.sun.jbi.messaging 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * BEGIN_HEADER - DO NOT EDIT
003:         *
004:         * The contents of this file are subject to the terms
005:         * of the Common Development and Distribution License
006:         * (the "License").  You may not use this file except
007:         * in compliance with the License.
008:         *
009:         * You can obtain a copy of the license at
010:         * https://open-esb.dev.java.net/public/CDDLv1.0.html.
011:         * See the License for the specific language governing
012:         * permissions and limitations under the License.
013:         *
014:         * When distributing Covered Code, include this CDDL
015:         * HEADER in each file and include the License file at
016:         * https://open-esb.dev.java.net/public/CDDLv1.0.html.
017:         * If applicable add the following below this CDDL HEADER,
018:         * with the fields enclosed by brackets "[]" replaced with
019:         * your own identifying information: Portions Copyright
020:         * [year] [name of copyright owner]
021:         */
022:
023:        /*
024:         * @(#)MessageServiceStatistics.java
025:         * Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved.
026:         *
027:         * END_HEADER - DO NOT EDIT
028:         */
029:        package com.sun.jbi.messaging;
030:
031:        import java.util.Date;
032:
033:        import javax.management.AttributeChangeNotification;
034:        import javax.management.Notification;
035:        import javax.management.NotificationListener;
036:        import javax.management.openmbean.CompositeData;
037:
038:        import javax.xml.namespace.QName;
039:
040:        import com.sun.jbi.monitoring.StatisticsBase;
041:        import com.sun.jbi.management.config.SystemConfigurationFactory;
042:
043:        /**
044:         * This class implements the MBean for collection of statistics for the
045:         * messaging service. All statistics are since the last message service startup;
046:         * they are all reset when the message service is restarted.
047:         *
048:         * @author Sun Microsystems, Inc.
049:         */
050:        public class MessageServiceStatistics implements 
051:                MessageServiceStatisticsMBean, NotificationListener {
052:            private MessageService mMsgSvc;
053:
054:            /**
055:             * Instance of StatisticsBase for manipulating the object tree.
056:             */
057:            private StatisticsBase mStatisticsBase;
058:
059:            /**
060:             * Time the message service was last successfully started.
061:             */
062:            private Date mLastRestartTime;
063:
064:            /**
065:             * Count of current number of services registered with the message service.
066:             */
067:            private int mRegisteredServices;
068:
069:            /**
070:             * Count of current number of endpoints registered with the message service.
071:             */
072:            private int mRegisteredEndpoints;
073:
074:            /**
075:             * Instance of MessagingStatistics for holding messaging statistics.
076:             */
077:            private MessagingStatistics mMessagingStatistics;
078:
079:            /**
080:             * Constant used to compute percentages.
081:             */
082:            private static final int ONE_HUNDRED = 100;
083:
084:            /**
085:             * Constant used to compute rates.
086:             */
087:            private static final int MILLISECONDS_PER_HOUR = 3600000;
088:
089:            /**
090:             * Constructor to create the StatisticsBase and MessagingStatistics
091:             * instances.
092:             * @param key the string value to use as the key for this statistics
093:             * instance.
094:             */
095:            MessageServiceStatistics(MessageService msgSvc, String key) {
096:                mMsgSvc = msgSvc;
097:                mStatisticsBase = new com.sun.jbi.util.monitoring.StatisticsBaseImpl(
098:                        key);
099:                mMessagingStatistics = new MessagingStatistics();
100:            }
101:
102:            //
103:            // Methods defined in StatisticsMBean must delegate to StatisticsBase.
104:            //
105:
106:            /**
107:             * Disable statistics collection. This method causes collection for this
108:             * object and all its child objects to be disabled.
109:             */
110:            public void setDisabled() {
111:                mMsgSvc.disableStatistics();
112:            }
113:
114:            public void disableTimingStatistics() {
115:                mMsgSvc.disableStatistics();
116:            }
117:
118:            /**
119:             * Enable statistics collection. This method causes collection for this
120:             * object and all its child objects to be enabled.
121:             */
122:            public boolean isEnabled() {
123:                return (mMsgSvc.areStatisticsEnabled());
124:            }
125:
126:            public void setEnabled() {
127:                mMsgSvc.enableStatistics();
128:            }
129:
130:            public void enableTimingStatistics() {
131:                mMsgSvc.enableStatistics();
132:            }
133:
134:            //
135:            // Methods defined in the MessageServiceStatisticsMBean interface. These
136:            // methods provide all the MBean attributes visible to JMX clients.
137:            //
138:
139:            /**
140:             * Get the time that the message service was last started.
141:             * @return The time of the last successful start() call.
142:             */
143:            public Date getLastRestartTime() {
144:                return mLastRestartTime;
145:            }
146:
147:            /**
148:             * Get the current number of services registered with the message service.
149:             * @return The total number of registered services.
150:             */
151:            public int getRegisteredServices() {
152:                return mRegisteredServices;
153:            }
154:
155:            /**
156:             * Get the current number of endpoints registered with the message service.
157:             * @return The total number of registered endpoints.
158:             */
159:            public int getRegisteredEndpoints() {
160:                return mRegisteredEndpoints;
161:            }
162:
163:            /** Returns the identifiers of all the active channels.
164:             *  @return names of all the active channels.
165:             */
166:            public String[] getActiveChannels() {
167:                return (mMsgSvc.getChannelNames());
168:            }
169:
170:            /** Returns a list of active endpoints in the NMR.  
171:             *  @return list of activated endpoints
172:             */
173:            public String[] getActiveEndpoints() {
174:                return (mMsgSvc.getEndpointNames());
175:            }
176:
177:            /**
178:             * Get the list of endpoints for a specific DeliveryChannel.
179:             * @return The delivery channel statistics in a CompositedData instance
180:             */
181:            public String[] getEndpointsForDeliveryChannel(String dcName) {
182:                return (mMsgSvc.getActiveEndpoints(dcName));
183:            }
184:
185:            /**
186:             * Get the list of consuming endpoints for a specific DeliveryChannel.
187:             * @return The delivery channel statistics in a CompositedData instance
188:             */
189:            public String[] getConsumingEndpointsForDeliveryChannel(
190:                    String dcName) {
191:                return (mMsgSvc.getActiveConsumingEndpoints(dcName));
192:            }
193:
194:            /**
195:             * Get the CompositeData instance that represents the current values for
196:             * the MessagingStatistics instance.
197:             * @return The messaging statistics in a CompositedData instance
198:             */
199:            public CompositeData getMessagingStatistics() {
200:                CompositeData mscd = null;
201:                try {
202:                    mscd = mMessagingStatistics.toCompositeData();
203:                } catch (javax.management.openmbean.OpenDataException odEx) {
204:                    odEx.printStackTrace();
205:                }
206:                return mscd;
207:            }
208:
209:            /**
210:             * Get the CompositeData instance that represents the current values for
211:             * the specific DeliveryChannel.
212:             * @return The delivery channel statistics in a CompositedData instance
213:             */
214:            public CompositeData getDeliveryChannelStatistics(String dcName) {
215:                CompositeData mscd = null;
216:                ChannelStatistics cs = mMsgSvc.getChannelStatistics(dcName);
217:
218:                if (cs != null) {
219:                    mscd = cs.getStatistics();
220:                }
221:                return mscd;
222:            }
223:
224:            /**
225:             * Get the CompositeData instance that represents the current values for
226:             * the specific Endpoint.
227:             * @return The endpoint statistics in a CompositedData instance
228:             */
229:            public CompositeData getEndpointStatistics(String epName) {
230:                CompositeData mscd = null;
231:                EndpointStatistics es = mMsgSvc.getEndpointStatistics(epName);
232:
233:                if (es != null) {
234:                    mscd = es.getStatistics();
235:                }
236:                return mscd;
237:            }
238:
239:            //
240:            // Methods used only within the message service code to set statistics
241:            // values.
242:            //
243:
244:            /**
245:             * Get the MessagingStatistics instance.
246:             * @return the MessagingStatisticsBase instance for this object.
247:             */
248:            MessagingStatistics getMessagingStatisticsInstance() {
249:                return mMessagingStatistics;
250:            }
251:
252:            /**
253:             * Get the StatisticsBase instance.
254:             * @return the StatisticsBase instance for this object.
255:             */
256:            StatisticsBase getStatisticsBase() {
257:                return mStatisticsBase;
258:            }
259:
260:            /**
261:             * Set the time that this component was last started.
262:             * @param startTime The time of the last successful start() call.
263:             */
264:            void setLastRestartTime(Date startTime) {
265:                mLastRestartTime = startTime;
266:                mMessagingStatistics.setLastRestartTime(startTime);
267:            }
268:
269:            /**
270:             * Decrement the current number of endpoints registered with the message
271:             * service.
272:             */
273:            void decrementRegisteredEndpoints() {
274:                --mRegisteredEndpoints;
275:            }
276:
277:            /**
278:             * Increment the current number of endpoints registered with the message
279:             * service.
280:             */
281:            void incrementRegisteredEndpoints() {
282:                ++mRegisteredEndpoints;
283:            }
284:
285:            /**
286:             * Decrement the current number of services registered with the message
287:             * service.
288:             */
289:            void decrementRegisteredServices() {
290:                --mRegisteredServices;
291:            }
292:
293:            /**
294:             * Increment the current number of services registered with the message
295:             * service.
296:             */
297:            void incrementRegisteredServices() {
298:                ++mRegisteredServices;
299:            }
300:
301:            /**
302:             * Reset all statistics.
303:             */
304:            void resetStatistics() {
305:                mRegisteredServices = 0;
306:                mRegisteredEndpoints = 0;
307:                mMessagingStatistics.resetStatistics();
308:            }
309:
310:            //
311:            // Notification Listener Interface
312:            //
313:
314:            /**
315:             *  handle a notification from the Logger Configuration MBean
316:             *
317:             * @param notification - the notification 
318:             * @param the callback passed in 
319:             */
320:            public void handleNotification(Notification notification,
321:                    Object handback) {
322:                if (notification instanceof  AttributeChangeNotification) {
323:                    AttributeChangeNotification notif = (AttributeChangeNotification) notification;
324:
325:                    Boolean enableTimingStatsStr = (Boolean) notif
326:                            .getNewValue();
327:                    boolean enableTimingStats = enableTimingStatsStr
328:                            .booleanValue();
329:
330:                    if (enableTimingStats) {
331:                        enableTimingStatistics();
332:                    } else {
333:                        disableTimingStatistics();
334:                    }
335:                }
336:            }
337:        }
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