Source Code Cross Referenced for MBeanView.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » jmx » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.jmx 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *
023:         *   Free Software Foundation, Inc.
024:         *   59 Temple Place, Suite 330
025:         *   Boston, MA 02111-1307  USA
026:         *
027:         * @author Scott Ferguson
028:         */
029:
030:        package com.caucho.jmx;
031:
032:        import com.caucho.log.Log;
033:        import com.caucho.util.L10N;
034:        import com.caucho.loader.*;
035:
036:        import javax.management.*;
037:        import java.util.*;
038:        import java.util.logging.Logger;
039:
040:        /**
041:         * The view for administration.
042:         */
043:        public class MBeanView {
044:            private static final Logger log = Logger.getLogger(MBeanView.class
045:                    .getName());
046:            private static final L10N L = new L10N(MBeanView.class);
047:
048:            private ClassLoader _classLoader;
049:
050:            private AbstractMBeanServer _mbeanServer;
051:
052:            private MBeanServerDelegateImpl _delegate;
053:
054:            private HashMap<ObjectName, MBeanWrapper> _mbeans = new HashMap<ObjectName, MBeanWrapper>();
055:
056:            MBeanView(AbstractMBeanServer mbeanServer, ClassLoader loader,
057:                    String agentId) {
058:                for (; loader != null
059:                        && loader != ClassLoader.getSystemClassLoader()
060:                        && !(loader instanceof  EnvironmentClassLoader); loader = loader
061:                        .getParent()) {
062:                }
063:
064:                if (loader == null)
065:                    loader = ClassLoader.getSystemClassLoader();
066:
067:                _mbeanServer = mbeanServer;
068:
069:                _classLoader = loader;
070:                _delegate = new MBeanServerDelegateImpl(agentId);
071:            }
072:
073:            /**
074:             * Returns the class loader.
075:             */
076:            public ClassLoader getClassLoader() {
077:                return _classLoader;
078:            }
079:
080:            /**
081:             * Returns the parent local view.
082:             */
083:            protected MBeanView getParentView() {
084:                if (_classLoader == null)
085:                    return null;
086:
087:                MBeanContext context = _mbeanServer.createContext(_classLoader
088:                        .getParent());
089:
090:                if (context.getView() == this )
091:                    return null;
092:                else
093:                    return context.getView();
094:
095:                /*
096:                if (_classLoader != null)
097:                  return Jmx.getLocalView(_classLoader.getParent());
098:                else
099:                  return null;
100:                 */
101:            }
102:
103:            /**
104:             * Returns the parent global view.
105:             */
106:            protected MBeanView getParentGlobalView() {
107:                return null;
108:                /*
109:                if (_classLoader != null)
110:                  return Jmx.getLocalView(_classLoader.getParent());
111:                else
112:                  return null;
113:                 */
114:            }
115:
116:            /**
117:             * Returns the mbean count.
118:             */
119:            public int getMBeanCount() {
120:                MBeanView parentView = getParentView();
121:
122:                if (parentView != null)
123:                    return _mbeans.size() + parentView.getMBeanCount();
124:                else
125:                    return _mbeans.size();
126:            }
127:
128:            /**
129:             * Returns the mbean domains.
130:             */
131:            public String[] getDomains() {
132:                ArrayList<String> domains = new ArrayList<String>();
133:
134:                getDomains(domains);
135:
136:                return domains.toArray(new String[domains.size()]);
137:            }
138:
139:            /**
140:             * Returns the mbean domains.
141:             */
142:            protected void getDomains(ArrayList<String> domains) {
143:                synchronized (_mbeans) {
144:                    Iterator<ObjectName> names = _mbeans.keySet().iterator();
145:                    while (names.hasNext()) {
146:                        ObjectName name = names.next();
147:
148:                        String domain = name.getDomain();
149:
150:                        if (!domains.contains(domain))
151:                            domains.add(domain);
152:                    }
153:                }
154:
155:                MBeanView parent = getParentView();
156:
157:                if (parent != null)
158:                    parent.getDomains(domains);
159:            }
160:
161:            /**
162:             * Finds names matching the query.
163:             */
164:            public Set<ObjectName> queryNames(ObjectName queryName,
165:                    QueryExp query) throws BadStringOperationException,
166:                    BadBinaryOpValueExpException,
167:                    BadAttributeValueExpException, InvalidApplicationException {
168:                // TreeSet would be better but it causes jconsole to fail
169:                HashSet<ObjectName> set = new HashSet<ObjectName>();
170:
171:                queryNames(set, queryName, query);
172:
173:                return set;
174:            }
175:
176:            /**
177:             * Finds names matching the query.
178:             */
179:            protected void queryNames(Set<ObjectName> set,
180:                    ObjectName queryName, QueryExp query)
181:                    throws BadStringOperationException,
182:                    BadBinaryOpValueExpException,
183:                    BadAttributeValueExpException, InvalidApplicationException {
184:                synchronized (_mbeans) {
185:                    Iterator<ObjectName> iter = _mbeans.keySet().iterator();
186:
187:                    while (iter.hasNext()) {
188:                        ObjectName name = iter.next();
189:
190:                        if (isMatch(name, queryName, query)) {
191:                            set.add(name);
192:                        }
193:                    }
194:                }
195:
196:                MBeanView parentView = getParentView();
197:
198:                if (parentView != null)
199:                    parentView.queryNames(set, queryName, query);
200:            }
201:
202:            /**
203:             * Finds names matching the query.
204:             */
205:            public Set<ObjectInstance> queryMBeans(ObjectName name,
206:                    QueryExp query) throws BadStringOperationException,
207:                    BadBinaryOpValueExpException,
208:                    BadAttributeValueExpException, InvalidApplicationException {
209:                HashSet<ObjectInstance> set = new HashSet<ObjectInstance>();
210:
211:                queryMBeans(set, name, query);
212:
213:                return set;
214:            }
215:
216:            /**
217:             * Finds names matching the query.
218:             */
219:            protected void queryMBeans(Set<ObjectInstance> set,
220:                    ObjectName name, QueryExp query)
221:                    throws BadStringOperationException,
222:                    BadBinaryOpValueExpException,
223:                    BadAttributeValueExpException, InvalidApplicationException {
224:                synchronized (_mbeans) {
225:                    Iterator<ObjectName> iter = _mbeans.keySet().iterator();
226:
227:                    while (iter.hasNext()) {
228:                        ObjectName testName = iter.next();
229:
230:                        if (isMatch(testName, name, query)) {
231:                            MBeanWrapper mbean = _mbeans.get(testName);
232:
233:                            if (mbean != null)
234:                                set.add(mbean.getObjectInstance());
235:                        }
236:                    }
237:                }
238:
239:                MBeanView parentView = getParentView();
240:
241:                if (parentView != null)
242:                    parentView.queryMBeans(set, name, query);
243:            }
244:
245:            /**
246:             * Tests if the name matches.
247:             *
248:             * @param name the object name to match
249:             * @param queryName the name of the query pattern
250:             */
251:            private boolean isMatch(ObjectName name, ObjectName queryName,
252:                    QueryExp query) throws BadStringOperationException,
253:                    BadBinaryOpValueExpException,
254:                    BadAttributeValueExpException, InvalidApplicationException {
255:                if (queryName == null)
256:                    return true;
257:
258:                if (!queryName.isDomainPattern()
259:                        && !name.getDomain().equals(queryName.getDomain()))
260:                    return false;
261:
262:                if (queryName.isPropertyPattern()) {
263:                    // If the queryName has a '*' in the properties, then check
264:                    // the queryName properties to see if they match
265:
266:                    Hashtable<String, String> map = queryName
267:                            .getKeyPropertyList();
268:                    Iterator<String> iter = map.keySet().iterator();
269:                    while (iter.hasNext()) {
270:                        String key = iter.next();
271:                        String value = map.get(key);
272:
273:                        if (!value.equals(name.getKeyProperty(key)))
274:                            return false;
275:                    }
276:                } else {
277:                    String testProps = name.getCanonicalKeyPropertyListString();
278:                    String queryProps = queryName
279:                            .getCanonicalKeyPropertyListString();
280:
281:                    if (!testProps.equals(queryProps))
282:                        return false;
283:                }
284:
285:                if (query != null && !query.apply(name))
286:                    return false;
287:
288:                return true;
289:            }
290:
291:            /**
292:             * Adds an mbean instance to the view.
293:             */
294:            boolean add(ObjectName name, MBeanWrapper mbean) {
295:                return add(name, mbean, false);
296:            }
297:
298:            /**
299:             * Adds an mbean instance to the view.
300:             */
301:            boolean add(ObjectName name, MBeanWrapper mbean, boolean overwrite) {
302:                synchronized (_mbeans) {
303:                    if (overwrite || _mbeans.get(name) == null) {
304:                        _mbeans.put(name, mbean);
305:
306:                        return true;
307:                    } else
308:                        return false;
309:                }
310:            }
311:
312:            /**
313:             * Removes an mbean instance from the view.
314:             */
315:            MBeanWrapper remove(ObjectName name) {
316:                synchronized (_mbeans) {
317:                    return _mbeans.remove(name);
318:                }
319:            }
320:
321:            /**
322:             * Removes an mbean instance from the view.
323:             */
324:            MBeanWrapper remove(ObjectName name, MBeanWrapper mbean) {
325:                synchronized (_mbeans) {
326:                    if (mbean != null && _mbeans.get(name) != mbean)
327:                        return null;
328:
329:                    return _mbeans.remove(name);
330:                }
331:            }
332:
333:            /**
334:             * Returns the object.
335:             */
336:            public MBeanWrapper getMBean(ObjectName name) {
337:                synchronized (_mbeans) {
338:                    MBeanWrapper mbean = _mbeans.get(name);
339:                    if (mbean != null)
340:                        return mbean;
341:
342:                    if (_classLoader == null)
343:                        return null;
344:                }
345:
346:                MBeanView parentView = getParentView();
347:
348:                if (parentView != null)
349:                    return parentView.getMBean(name);
350:                else
351:                    return null;
352:            }
353:
354:            /**
355:             * Closes the view.
356:             */
357:            void close() {
358:                _mbeans = null;
359:            }
360:
361:            public String toString() {
362:                return "MBeanView[" + _classLoader + "]";
363:            }
364:
365:        }
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