Source Code Cross Referenced for AbstractWebServiceMBean.java in  » J2EE » JOnAS-4.8.6 » org » objectweb » jonas » ws » mbean » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » JOnAS 4.8.6 » org.objectweb.jonas.ws.mbean 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * JOnAS: Java(TM) Open Application Server
003:         * Copyright (C) 2005 Bull S.A.
004:         * Contact: jonas-team@objectweb.org
005:         *
006:         * This library is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU Lesser General Public
008:         * License as published by the Free Software Foundation; either
009:         * version 2.1 of the License, or any later version.
010:         *
011:         * This library is distributed in the hope that it will be useful,
012:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         * Lesser General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU Lesser General Public
017:         * License along with this library; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
019:         * USA
020:         *
021:         * --------------------------------------------------------------------------
022:         * $Id$
023:         * --------------------------------------------------------------------------
024:         */package org.objectweb.jonas.ws.mbean;
025:
026:        import java.util.Iterator;
027:        import java.util.List;
028:
029:        import javax.management.MBeanServer;
030:        import javax.management.MalformedObjectNameException;
031:        import javax.management.ObjectName;
032:        import javax.management.modelmbean.ModelMBean;
033:
034:        import org.apache.commons.modeler.ManagedBean;
035:        import org.apache.commons.modeler.Registry;
036:
037:        import org.objectweb.jonas.common.Log;
038:        import org.objectweb.jonas.jmx.JmxService;
039:        import org.objectweb.jonas.management.JonasMBeanTools;
040:        import org.objectweb.jonas.management.j2eemanagement.J2EEManagedObject;
041:        import org.objectweb.jonas.service.ServiceManager;
042:
043:        import org.objectweb.util.monolog.api.BasicLevel;
044:        import org.objectweb.util.monolog.api.Logger;
045:
046:        /**
047:         * Base Class for WebServices MBeans. It makes registration/unregistration
048:         * of hierarchical MBeans very easy. Needs to be subclassed for each WebService MBean.
049:         *
050:         * @author Guillaume Sauthier
051:         */
052:        public abstract class AbstractWebServiceMBean extends J2EEManagedObject {
053:
054:            /**
055:             * logger
056:             */
057:            private static Logger log = Log.getLogger(Log.JONAS_WS_PREFIX);
058:
059:            /**
060:             * ObjectName instance : avoid recreating an ObjectName each time we want one
061:             */
062:            private ObjectName realObjectName = null;
063:
064:            /**
065:             * Constructor for default J2eeManagedObject
066:             * @param objectName the MBean's ObjectName
067:             */
068:            public AbstractWebServiceMBean(String objectName) {
069:                super (objectName);
070:                try {
071:                    realObjectName = ObjectName.getInstance(objectName);
072:                } catch (MalformedObjectNameException e) {
073:                    // Cannot go here
074:                    realObjectName = null;
075:                }
076:            }
077:
078:            /**
079:             * Registers the MBean (and its childs) in the default MBeanServer
080:             */
081:            public void register() {
082:                register(getMBeanServer());
083:            }
084:
085:            /**
086:             * Registers the MBean (and its childs) in the specified MBeanServer
087:             * @param server the MBeanServer where ON will be registered
088:             */
089:            public void register(MBeanServer server) {
090:
091:                // get common-modeler Registry
092:                Registry registry = JonasMBeanTools.getRegistry();
093:                // get the ManagedBean given the MBean type (WebServices, PortComponent, ...)
094:                ManagedBean managed = registry.findManagedBean(getMBeanType());
095:                try {
096:                    // instantiate and register the Model
097:                    ModelMBean model = managed.createMBean(this );
098:                    server.registerMBean(model, realObjectName);
099:                } catch (Exception e) {
100:                    // should never goes here
101:                    log.log(BasicLevel.DEBUG, "Should never goes here", e);
102:                }
103:
104:                // register "childs"
105:                List childs = getChildsMBeans();
106:                if (childs != null) {
107:                    for (Iterator i = childs.iterator(); i.hasNext();) {
108:                        AbstractWebServiceMBean child = (AbstractWebServiceMBean) i
109:                                .next();
110:                        child.register(server);
111:                    }
112:                }
113:            }
114:
115:            /**
116:             * @return Returns the MBean type (as used in mbean-descriptor.xml)
117:             */
118:            protected abstract String getMBeanType();
119:
120:            /**
121:             * Unregisters the MBean (and its childs) from the default MBeanServer
122:             */
123:            public void unregister() {
124:                unregister(getMBeanServer());
125:            }
126:
127:            /**
128:             * Unregisters the MBean (and its childs) from the specified MBeanServer
129:             * @param server the MBeanServer where ON will be unregistered
130:             */
131:            public void unregister(MBeanServer server) {
132:                // unregister MBean
133:                try {
134:                    server.unregisterMBean(ObjectName
135:                            .getInstance(getObjectName()));
136:                } catch (Exception e) {
137:                    // nothing to do, we simply continue the unregistering process
138:                    log.log(BasicLevel.DEBUG, "Should never goes here", e);
139:                }
140:
141:                // unregister "childs"
142:                List childs = getChildsMBeans();
143:                if (childs != null) {
144:                    for (Iterator i = childs.iterator(); i.hasNext();) {
145:                        AbstractWebServiceMBean child = (AbstractWebServiceMBean) i
146:                                .next();
147:                        child.unregister(server);
148:                    }
149:                }
150:            }
151:
152:            /**
153:             * @return Returns the Child List
154:             */
155:            protected abstract List getChildsMBeans();
156:
157:            /**
158:             * @return Returns the MBeanServer
159:             */
160:            private MBeanServer getMBeanServer() {
161:                ServiceManager sm;
162:                try {
163:                    sm = ServiceManager.getInstance();
164:                } catch (Exception e) {
165:                    // we should never goes here
166:                    throw new IllegalStateException(
167:                            "Cannot get ServiceManager inside JOnAS !");
168:                }
169:                MBeanServer server = ((JmxService) sm.getJmxService())
170:                        .getJmxServer();
171:                return server;
172:            }
173:
174:            /**
175:             * @return Returns the ObjectName instance
176:             */
177:            public ObjectName getRealObjectName() {
178:                return this.realObjectName;
179:            }
180:        }
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