001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.geronimo.openejb;
018
019 import java.util.ArrayList;
020 import java.util.Collection;
021 import java.util.Hashtable;
022 import java.util.List;
023 import javax.management.ObjectName;
024
025 import org.apache.geronimo.j2ee.management.impl.InvalidObjectNameException;
026 import org.apache.geronimo.kernel.ObjectNameUtil;
027 import org.apache.geronimo.management.EJB;
028 import org.apache.geronimo.management.EJBModule;
029 import org.apache.geronimo.management.J2EEApplication;
030 import org.apache.geronimo.management.J2EEServer;
031 import org.apache.openejb.assembler.classic.EjbJarInfo;
032 import org.apache.openejb.UndeployException;
033 import org.apache.openejb.NoSuchApplicationException;
034 import org.apache.commons.logging.LogFactory;
035 import org.apache.commons.logging.Log;
036
037 /**
038 * @version $Revision: 451417 $ $Date: 2006-09-29 13:13:22 -0700 (Fri, 29 Sep 2006) $
039 */
040 public class EjbModuleImpl implements EJBModule {
041
042 private static final Log log = LogFactory.getLog(EjbModuleImpl.class);
043 private final J2EEServer server;
044 private final J2EEApplication application;
045 private final String deploymentDescriptor;
046 private final String objectName;
047 private final Collection<? extends EJB> ejbs;
048 private final ClassLoader classLoader;
049
050 private final OpenEjbSystem openEjbSystem;
051 private final EjbJarInfo ejbJarInfo;
052
053 public EjbModuleImpl(String objectName, J2EEServer server, J2EEApplication application, String deploymentDescriptor, Collection<? extends EJB> ejbs, ClassLoader classLoader, OpenEjbSystem openEjbSystem, EjbJarInfo ejbJarInfo) {
054 this.objectName = objectName;
055 ObjectName myObjectName = ObjectNameUtil.getObjectName(objectName);
056 verifyObjectName(myObjectName);
057
058 this.server = server;
059 this.application = application;
060 this.deploymentDescriptor = deploymentDescriptor;
061 this.ejbs = ejbs;
062
063 this.classLoader = classLoader;
064
065 this.openEjbSystem = openEjbSystem;
066 this.ejbJarInfo = ejbJarInfo;
067 }
068
069 public String getObjectName() {
070 return objectName;
071 }
072
073 public boolean isStateManageable() {
074 return true;
075 }
076
077 public boolean isStatisticsProvider() {
078 return false;
079 }
080
081 public boolean isEventProvider() {
082 return true;
083 }
084
085 public String getDeploymentDescriptor() {
086 return deploymentDescriptor;
087 }
088
089 public String getServer() {
090 return server.getObjectName();
091 }
092
093 public String getApplication() {
094 if (application == null) {
095 return null;
096 }
097 return application.getObjectName();
098 }
099
100 public String[] getJavaVMs() {
101 return server.getJavaVMs();
102 }
103
104 public String[] getEjbs() {
105 if (ejbs == null) {
106 return new String[0];
107 }
108
109 ArrayList<EJB> copy;
110 synchronized (ejbs) {
111 copy = new ArrayList<EJB>(ejbs);
112 }
113
114 String[] result = new String[copy.size()];
115 for (int i = 0; i < result.length; i++) {
116 result[i] = (copy.get(i)).getObjectName();
117 }
118 return result;
119 }
120
121
122 protected void start() throws Exception {
123 openEjbSystem.createEjbJar(ejbJarInfo, classLoader);
124 }
125
126 protected void stop() {
127 try {
128 openEjbSystem.removeEjbJar(ejbJarInfo, classLoader);
129 } catch (NoSuchApplicationException e) {
130 log.error("Module does not exist.", e);
131 } catch (UndeployException e) {
132 List<Throwable> causes = e.getCauses();
133 log.error(e.getMessage()+": Encountered "+causes.size()+" failures.");
134 for (Throwable throwable : causes) {
135 log.info(throwable);
136 }
137 }
138 }
139
140 /**
141 * ObjectName must match this pattern:
142 * <p/>
143 * domain:j2eeType=EJBModule,name=MyName,J2EEServer=MyServer,J2EEApplication=MyApplication
144 */
145 private void verifyObjectName(ObjectName objectName) {
146 if (objectName.isPattern()) {
147 throw new InvalidObjectNameException("ObjectName can not be a pattern", objectName);
148 }
149 Hashtable keyPropertyList = objectName.getKeyPropertyList();
150 if (!"EJBModule".equals(keyPropertyList.get("j2eeType"))) {
151 throw new InvalidObjectNameException("EJBModule object name j2eeType property must be 'EJBModule'", objectName);
152 }
153 if (!keyPropertyList.containsKey("name")) {
154 throw new InvalidObjectNameException("EJBModule object must contain a name property", objectName);
155 }
156 if (!keyPropertyList.containsKey("J2EEServer")) {
157 throw new InvalidObjectNameException("EJBModule object name must contain a J2EEServer property", objectName);
158 }
159 if (!keyPropertyList.containsKey("J2EEApplication")) {
160 throw new InvalidObjectNameException("EJBModule object name must contain a J2EEApplication property", objectName);
161 }
162 if (keyPropertyList.size() != 4) {
163 throw new InvalidObjectNameException("EJBModule object name can only have j2eeType, name, J2EEApplication, and J2EEServer properties", objectName);
164 }
165 }
166 }