Source Code Cross Referenced for ModelSystemService.java in  » ESB » open-esb » com » sun » jbi » management » system » 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.management.system 
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:         * @(#)ModelSystemService.java
025:         * Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved.
026:         *
027:         * END_HEADER - DO NOT EDIT
028:         */
029:        package com.sun.jbi.management.system;
030:
031:        import com.sun.jbi.management.JbiNameInfo;
032:        import com.sun.jbi.management.support.MBeanSet;
033:        import com.sun.jbi.management.common.LoggerMBean;
034:        import com.sun.jbi.management.registry.Registry;
035:        import com.sun.jbi.StringTranslator;
036:        import java.util.logging.Logger;
037:        import javax.management.NotificationEmitter;
038:        import javax.management.NotificationListener;
039:        import javax.management.NotificationFilter;
040:        import javax.management.MBeanNotificationInfo;
041:        import javax.management.NotificationBroadcasterSupport;
042:        import javax.management.ListenerNotFoundException;
043:        import javax.management.MBeanServer;
044:        import javax.management.ObjectName;
045:        import javax.jbi.management.LifeCycleMBean;
046:
047:        /**
048:         * The ModelSystemService implements the management controls for a standard
049:         * JBI Framework system service.
050:         *
051:         * @author Sun Microsystems, Inc.
052:         */
053:        public abstract class ModelSystemService implements  LifeCycleMBean,
054:                NotificationEmitter {
055:            /** JMX object names for all JBI system "service" mbeans: */
056:            protected ObjectName mAdminServiceMBeanName;
057:            protected ObjectName mConfigServiceMBeanName;
058:            protected ObjectName mInstallServiceMBeanName;
059:            protected ObjectName mLoggingServiceMBeanName;
060:            protected ObjectName mDeployServiceMBeanName;
061:            protected ObjectName mMessageServiceMBeanName;
062:
063:            protected com.sun.jbi.EnvironmentContext mEnv;
064:
065:            //allocate mbean sets for INITIAL and START/STOP mbeans:
066:            protected MBeanSet mInitialMBeans, mStartMBeans;
067:
068:            /** Logger to be used by ModelSystemService methods: */
069:            protected Logger mLogger;
070:
071:            /** handle to our MBean Server: */
072:            protected MBeanServer mMBeanServer;
073:
074:            /** handle to our MBean Namer: */
075:            protected com.sun.jbi.management.MBeanNames mMBeanNames;
076:
077:            /** handle to jbi system or installed component identification: */
078:            protected JbiNameInfo mJbiNameInfo;
079:
080:            /** User-friendly display name to be used by ModelSystemService methods: */
081:            protected String mDisplayName;
082:
083:            /**
084:             * The default logger implementation, all logger tasks are delegated to 
085:             * this MBean
086:             */
087:            protected LoggerMBean mLoggerImpl;
088:
089:            /** JMX object names for standard mbeans: */
090:            protected ObjectName mConfigMBeanName;
091:            protected ObjectName mLifeCycleMBeanName;
092:            protected ObjectName mLoggerMBeanName;
093:            protected ObjectName mStatisticsMBeanName;
094:
095:            protected final String mModelName = "ModelSystemService";
096:
097:            /** Handle to StringTranslator for message translation: */
098:            protected StringTranslator mTranslator;
099:
100:            /** allocate a logger, and then initialize the ModelSystemService. */
101:            protected void initModelSystemService(
102:                    com.sun.jbi.EnvironmentContext anEnv, JbiNameInfo aJbiName) {
103:                //allocate a logger, since none was provided::
104:                mLogger = Logger.getLogger(this .getClass().getName());
105:
106:                //call the secondary form of init:
107:                initModelSystemService(anEnv, mLogger, aJbiName);
108:            }
109:
110:            /** Initialize the ModelSystemService.  This does not register any mbeans. */
111:            protected void initModelSystemService(
112:                    com.sun.jbi.EnvironmentContext anEnv, Logger aLogger,
113:                    JbiNameInfo aJbiName) {
114:                //get access to environment implementation, if different:
115:                mEnv = (com.sun.jbi.EnvironmentContext) anEnv;
116:
117:                //save handle to jbi system or installed component identification:
118:                mJbiNameInfo = aJbiName;
119:                mDisplayName = aJbiName.name();
120:
121:                //save logger handle. Note that the logger's level is inherited from
122:                // the main JBI system logger (com.sun.jbi) if no level has been
123:                // explicitly set for this logger.
124:                mLogger = aLogger;
125:
126:                try {
127:                    mTranslator = (StringTranslator) mEnv
128:                            .getStringTranslator("com.sun.jbi.management");
129:                } catch (Exception e) {
130:                    mLogger.warning(e.getMessage());
131:                }
132:
133:                // Instantiate the Default Logger Implementation
134:                try {
135:                    mLoggerImpl = new com.sun.jbi.management.support.SystemServiceLoggerMBeanImpl(
136:                            mLogger, mDisplayName);
137:                } catch (Exception ex) {
138:                    String[] params = new String[] { mDisplayName,
139:                            mLogger.getName(), ex.getMessage() };
140:                    String locMsg = mTranslator
141:                            .getString(
142:                                    com.sun.jbi.management.LocalStringKeys.JBI_ADMIN_LOGGER_MBN_CREATE_FAILED,
143:                                    params);
144:
145:                    mLogger.warning(locMsg);
146:                }
147:
148:                mMBeanServer = mEnv.getMBeanServer();
149:
150:                try {
151:                    //why doesn't this work for model components????
152:                    //(throws a class-cast exception).
153:                    //mMBeanNames = (com.sun.jbi.management.MBeanNames) mEnv.getMBeanNames();
154:
155:                    //work-around for above:
156:                    com.sun.jbi.management.support.MBeanNamesImpl mbnamesImpl = new com.sun.jbi.management.support.MBeanNamesImpl(
157:                            mEnv.getMBeanNames().getJmxDomainName(), mEnv
158:                                    .getPlatformContext().getInstanceName());
159:                    mMBeanNames = (com.sun.jbi.management.MBeanNames) mbnamesImpl;
160:
161:                    //create MBEAN sets for INITIAL and START states:
162:                    mInitialMBeans = new MBeanSet(mMBeanServer, mLogger);
163:                    mStartMBeans = new MBeanSet(mMBeanServer, mLogger);
164:
165:                    //create Object names for standard mbeans, and populate mbean sets:
166:                    initModelSystemMBeanNames();
167:                } catch (Exception e) {
168:                    mLogger.warning(e.getMessage());
169:                }
170:
171:                mLogger
172:                        .fine("initModelSystemService: Initialization complete for "
173:                                + mJbiNameInfo.name());
174:            }
175:
176:            /** perform one-time startup tasks for this model */
177:            protected void bootstrap() {
178:                mLogger.fine("ModelSystemService: START bootstrap for '"
179:                        + mJbiNameInfo.name() + "'");
180:
181:                //register INITIAL mbean set:
182:                mInitialMBeans.register();
183:                mLogger.fine("ModelSystemService: FINISH bootstrap for '"
184:                        + mJbiNameInfo.name() + "'");
185:            }
186:
187:            ////////////////
188:            //implementation of LifeCycleMBean
189:            ////////////////
190:
191:            /**
192:             * Start the item.
193:             * 
194:             * @exception javax.jbi.JBIException if the item fails to start.
195:             */
196:            public void start() throws javax.jbi.JBIException {
197:                //register START/STOP mbean set:
198:                mStartMBeans.register();
199:            }
200:
201:            /**
202:             * Stop the item. This suspends current messaging activities.
203:             * 
204:             * @exception javax.jbi.JBIException if the item fails to stop.
205:             */
206:            public void stop() throws javax.jbi.JBIException {
207:                //unregister START/STOP mbean set:
208:                mStartMBeans.unregister();
209:            }
210:
211:            /**
212:             * Shut down the item. This releases resources and returns the item
213:             * to an uninitialized state.
214:             *
215:             * @exception javax.jbi.JBIException if the item fails to shut down.
216:             */
217:            public void shutDown() throws javax.jbi.JBIException {
218:                //stop management mbean lifecycle:
219:                try {
220:                    //make sure lifecycle is stopped:
221:                    mMBeanServer.invoke(mLifeCycleMBeanName, "stop",
222:                            new Object[0], new String[0]);
223:                } catch (Exception e) {
224:                    mLogger.warning(e.toString());
225:                    e.printStackTrace();
226:                }
227:
228:                try {
229:                    //unregister INITIAL mbean set:
230:                    mInitialMBeans.unregister();
231:                } catch (Exception e) {
232:                    e.printStackTrace();
233:                }
234:            }
235:
236:            /**
237:             * Get the current state of this managed compononent.
238:             * 
239:             * @return the current state of this managed component (must be one of the 
240:             *         string constants defined by this interface)
241:             */
242:            public String getCurrentState() {
243:                // For now, just return "Unknown" until states are stored.
244:                return UNKNOWN;
245:            }
246:
247:            /** ## These methods provide access to registry-related interfaces. ## */
248:
249:            /** 
250:             * Get a reference to the JBI registry.
251:             */
252:            protected Registry getRegistry() {
253:                return (com.sun.jbi.management.registry.Registry) mEnv
254:                        .getRegistry();
255:            }
256:
257:            /** 
258:             * Get a reference to ComponentQuery.
259:             */
260:            protected com.sun.jbi.ComponentQuery getComponentQuery() {
261:                try {
262:                    return getRegistry().getComponentQuery();
263:                } catch (com.sun.jbi.management.registry.RegistryException regEx) {
264:                    throw new RuntimeException(regEx.getMessage());
265:                }
266:            }
267:
268:            /**
269:             * create Object names for required ModelSystemService mbeans,
270:             * and populate the INITIAL state mbean set.
271:             */
272:            private void initModelSystemMBeanNames() {
273:                ////////////
274:                //lifecycle:
275:                ////////////
276:                mLifeCycleMBeanName = mMBeanNames
277:                        .getSystemServiceMBeanName(mJbiNameInfo.name(),
278:                                mMBeanNames.CONTROL_TYPE_LIFECYCLE);
279:                mInitialMBeans.add(mLifeCycleMBeanName,
280:                        javax.jbi.management.LifeCycleMBean.class, this );
281:
282:                /////////
283:                //logger:
284:                /////////
285:                if (mLoggerImpl != null) {
286:                    mLoggerMBeanName = mMBeanNames
287:                            .getSystemServiceLoggerMBeanName(mJbiNameInfo
288:                                    .name(), mLogger);
289:                    mInitialMBeans.add(mLoggerMBeanName,
290:                            com.sun.jbi.management.common.LoggerMBean.class,
291:                            mLoggerImpl);
292:                }
293:
294:                /////////
295:                //statistics:
296:                /////////
297:                mStatisticsMBeanName = mMBeanNames.getSystemServiceMBeanName(
298:                        mJbiNameInfo.name(),
299:                        mMBeanNames.CONTROL_TYPE_STATISTICS);
300:
301:                initSystemServiceMBeanNames();
302:            }
303:
304:            /**
305:             * create Object names for all System Service MBeans.
306:             */
307:            private void initSystemServiceMBeanNames() {
308:                mAdminServiceMBeanName = mMBeanNames.getSystemServiceMBeanName(
309:                        mMBeanNames.SERVICE_NAME_ADMIN_SERVICE,
310:                        mMBeanNames.CONTROL_TYPE_ADMIN_SERVICE);
311:                mConfigServiceMBeanName = mMBeanNames
312:                        .getSystemServiceMBeanName(
313:                                mMBeanNames.SERVICE_NAME_CONFIG_SERVICE,
314:                                mMBeanNames.CONTROL_TYPE_CONFIG_SERVICE);
315:                mDeployServiceMBeanName = mMBeanNames
316:                        .getSystemServiceMBeanName(
317:                                mMBeanNames.SERVICE_NAME_DEPLOY_SERVICE,
318:                                mMBeanNames.CONTROL_TYPE_DEPLOY_SERVICE);
319:                mInstallServiceMBeanName = mMBeanNames
320:                        .getSystemServiceMBeanName(
321:                                mMBeanNames.SERVICE_NAME_INSTALL_SERVICE,
322:                                mMBeanNames.CONTROL_TYPE_INSTALL_SERVICE);
323:                mLoggingServiceMBeanName = mMBeanNames
324:                        .getSystemServiceMBeanName(
325:                                mMBeanNames.SERVICE_NAME_LOGGING_SERVICE,
326:                                mMBeanNames.CONTROL_TYPE_LOGGING_SERVICE);
327:                mMessageServiceMBeanName = mMBeanNames
328:                        .getSystemServiceMBeanName(
329:                                mMBeanNames.SERVICE_NAME_MESSAGE_SERVICE,
330:                                mMBeanNames.CONTROL_TYPE_MESSAGE_SERVICE);
331:            }
332:
333:            //allocate our broadcast support class:
334:            private NotificationBroadcasterSupport mEmitter = new NotificationBroadcasterSupport();
335:
336:            //Implementation for NotificationBroadcaster, extended by NotificationEmitter
337:            /**
338:             * Adds a listener to this MBean.
339:             *
340:             * @param listener The listener object which will handle the
341:             * notifications emitted by the broadcaster.
342:             * @param filter The filter object. If filter is null, no
343:             * filtering will be performed before handling notifications.
344:             * @param handback An opaque object to be sent back to the
345:             * listener when a notification is emitted. This object cannot be
346:             * used by the Notification broadcaster object. It should be
347:             * resent unchanged with the notification to the listener.
348:             *
349:             * @exception IllegalArgumentException Listener parameter is null.
350:             *
351:             * @see #removeNotificationListener
352:             */
353:            public void addNotificationListener(NotificationListener listener,
354:                    NotificationFilter filter, Object handback)
355:                    throws java.lang.IllegalArgumentException {
356:                mEmitter.addNotificationListener(listener, filter, handback);
357:            }
358:
359:            /**
360:             * Removes a listener from this MBean.  If the listener
361:             * has been registered with different handback objects or
362:             * notification filters, all entries corresponding to the listener
363:             * will be removed.
364:             *
365:             * @param listener A listener that was previously added to this
366:             * MBean.
367:             *
368:             * @exception ListenerNotFoundException The listener is not
369:             * registered with the MBean.
370:             *
371:             * @see #addNotificationListener
372:             * @see NotificationEmitter#removeNotificationListener
373:             */
374:            public void removeNotificationListener(NotificationListener listener)
375:                    throws ListenerNotFoundException {
376:                mEmitter.removeNotificationListener(listener);
377:            }
378:
379:            /**
380:             * <p>Returns an array indicating, for each notification this
381:             * MBean may send, the name of the Java class of the notification
382:             * and the notification type.</p>
383:             *
384:             * <p>It is not illegal for the MBean to send notifications not
385:             * described in this array.  However, some clients of the MBean
386:             * server may depend on the array being complete for their correct
387:             * functioning.</p>
388:             *
389:             * @return the array of possible notifications.
390:             */
391:            public MBeanNotificationInfo[] getNotificationInfo() {
392:                return (new MBeanNotificationInfo[0]);
393:            }
394:
395:            //Implementaion for NotificationEmitter, which extends NotificationBroadcaster
396:
397:            /**
398:             * <p>Removes a listener from this MBean.  The MBean must have a
399:             * listener that exactly matches the given <code>listener</code>,
400:             * <code>filter</code>, and <code>handback</code> parameters.  If
401:             * there is more than one such listener, only one is removed.</p>
402:             *
403:             * <p>The <code>filter</code> and <code>handback</code> parameters
404:             * may be null if and only if they are null in a listener to be
405:             * removed.</p>
406:             *
407:             * @param listener A listener that was previously added to this
408:             * MBean.
409:             * @param filter The filter that was specified when the listener
410:             * was added.
411:             * @param handback The handback that was specified when the listener was
412:             * added.
413:             *
414:             * @exception ListenerNotFoundException The listener is not
415:             * registered with the MBean, or it is not registered with the
416:             * given filter and handback.
417:             */
418:            public void removeNotificationListener(
419:                    NotificationListener listener, NotificationFilter filter,
420:                    Object handback) throws ListenerNotFoundException {
421:                mEmitter.removeNotificationListener(listener, filter, handback);
422:            }
423:
424:            /**
425:             * Getter for local NotificationBroadcaster.
426:             *
427:             * @return NotificationBroadcaster
428:             */
429:            public NotificationBroadcasterSupport getNotificationBroadcaster() {
430:                return mEmitter;
431:            }
432:        }
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