Author: gertv
Date: Sun Aug 19 12:27:01 2012
New Revision: 1374742
URL: http://svn.apache.org/viewvc?rev=1374742&view=rev
Log:
SMXCOMP-940: InstanceAlreadyExistsException in HTTP/JMS component bootstrap on
WebSphere
Added:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/test/java/org/apache/servicemix/http/HttpBootstrapTest.java
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/management/
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/management/MBeanServerHelper.java
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/test/java/org/apache/servicemix/common/management/
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/test/java/org/apache/servicemix/common/management/MBeanServerHelperTest.java
Modified:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/pom.xml
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/main/java/org/apache/servicemix/http/HttpBootstrap.java
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/pom.xml
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/src/main/java/org/apache/servicemix/jms/JmsBootstrap.java
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/AsyncBaseLifeCycle.java
Modified:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/pom.xml
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/pom.xml?rev=1374742&r1=1374741&r2=1374742&view=diff
==============================================================================
---
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/pom.xml
(original)
+++
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/pom.xml
Sun Aug 19 12:27:01 2012
@@ -220,7 +220,11 @@
<artifactId>jencks</artifactId>
<scope>test</scope>
</dependency>
-
+ <dependency>
+ <groupId>org.easymock</groupId>
+ <artifactId>easymock</artifactId>
+ <scope>test</scope>
+ </dependency>
<!-- documentation -->
<dependency>
Modified:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/main/java/org/apache/servicemix/http/HttpBootstrap.java
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/main/java/org/apache/servicemix/http/HttpBootstrap.java?rev=1374742&r1=1374741&r2=1374742&view=diff
==============================================================================
---
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/main/java/org/apache/servicemix/http/HttpBootstrap.java
(original)
+++
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/main/java/org/apache/servicemix/http/HttpBootstrap.java
Sun Aug 19 12:27:01 2012
@@ -16,6 +16,8 @@
*/
package org.apache.servicemix.http;
+import org.apache.servicemix.common.management.MBeanServerHelper;
+
import javax.jbi.JBIException;
import javax.jbi.component.Bootstrap;
import javax.jbi.component.InstallationContext;
@@ -63,15 +65,9 @@ public class HttpBootstrap implements Bo
configuration.setRootDir(this.context.getInstallRoot());
configuration.setComponentName(this.context.getComponentName());
configuration.load();
- mbeanName =
this.context.getContext().getMBeanNames().createCustomComponentMBeanName("bootstrap");
- MBeanServer server = this.context.getContext().getMBeanServer();
- if (server == null) {
- throw new JBIException("null mBeanServer");
- }
- if (server.isRegistered(this.mbeanName)) {
- server.unregisterMBean(this.mbeanName);
- }
- server.registerMBean(configuration, this.mbeanName);
+
+ ObjectName name =
this.context.getContext().getMBeanNames().createCustomComponentMBeanName("bootstrap");
+ this.mbeanName = MBeanServerHelper.register(getMBeanServer(), name,
configuration);
}
/*
@@ -90,15 +86,7 @@ public class HttpBootstrap implements Bo
}
protected void doCleanUp() throws Exception {
- if (this.mbeanName != null) {
- MBeanServer server = this.context.getContext().getMBeanServer();
- if (server == null) {
- throw new JBIException("null mBeanServer");
- }
- if (server.isRegistered(this.mbeanName)) {
- server.unregisterMBean(this.mbeanName);
- }
- }
+ MBeanServerHelper.unregister(getMBeanServer(), mbeanName);
}
/*
@@ -117,4 +105,10 @@ public class HttpBootstrap implements Bo
public void onUninstall() throws JBIException {
}
+ /*
+ * Get the MBeanServer for the installation context
+ */
+ private MBeanServer getMBeanServer() {
+ return this.context.getContext().getMBeanServer();
+ }
}
Added:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/test/java/org/apache/servicemix/http/HttpBootstrapTest.java
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/test/java/org/apache/servicemix/http/HttpBootstrapTest.java?rev=1374742&view=auto
==============================================================================
---
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/test/java/org/apache/servicemix/http/HttpBootstrapTest.java
(added)
+++
servicemix/components/branches/components-2011.02.x/bindings/servicemix-http/src/test/java/org/apache/servicemix/http/HttpBootstrapTest.java
Sun Aug 19 12:27:01 2012
@@ -0,0 +1,109 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.servicemix.http;
+
+import junit.framework.TestCase;
+import org.w3c.dom.DocumentFragment;
+
+import javax.jbi.JBIException;
+import javax.jbi.component.ComponentContext;
+import javax.jbi.component.InstallationContext;
+import javax.jbi.management.MBeanNames;
+import javax.management.*;
+import java.util.List;
+
+import static org.easymock.EasyMock.*;
+
+/**
+ * Test to ensure HttpBootstrap MBean registration works correct on containers
that alter the MBean ObjectName
+ * (e.g. IBM WebSphere)
+ */
+public class HttpBootstrapTest extends TestCase {
+
+ private HttpBootstrap bootstrap;
+ private ObjectName originalName;
+ private ObjectName registeredName;
+
+ @Override
+ protected void setUp() throws Exception {
+ super.setUp();
+
+ bootstrap = new HttpBootstrap();
+ originalName = new ObjectName("test:Type=bootstrap");
+ registeredName = new
ObjectName("test:Type=bootstrap,process=process1,node=node1,cell=cell1");
+ }
+
+ public void testInitMBeanNameChanging() throws JBIException {
+ bootstrap.init(new MockInstallationContext());
+ assertEquals("HttpBootstrap should return the actual object name
(including container-specific extra elements)",
+ registeredName, bootstrap.getExtensionMBeanName());
+ }
+
+ private final class MockInstallationContext implements InstallationContext
{
+
+ public String getComponentClassName() {
+ return null; // just a mock object - no need to implement this
+ }
+
+ public List getClassPathElements() {
+ return null; // just a mock object - no need to implement this
+ }
+
+ public String getComponentName() {
+ return null; // just a mock object - no need to implement this
+ }
+
+ public ComponentContext getContext() {
+ ComponentContext context = createMock(ComponentContext.class);
+
+ // Set up the mock MBeanNames to return the original ObjectName
+ MBeanNames names = createMock(MBeanNames.class);
+ expect(context.getMBeanNames()).andReturn(names);
+
expect(names.createCustomComponentMBeanName("bootstrap")).andReturn(originalName);
+
+ // Set up the mock MBeanServer to return the altered ObjectName
after registration
+ MBeanServer server = createMock(MBeanServer.class);
+ expect(context.getMBeanServer()).andReturn(server);
+ try {
+ expect(server.isRegistered(originalName)).andReturn(false);
+ expect(server.registerMBean(isA(HttpConfiguration.class),
eq(originalName))).andReturn(new ObjectInstance(registeredName, null));
+ } catch (Exception e) {
+ fail("Exception occured while setting up the test: " +
e.getMessage());
+ }
+
+ replay(context, names, server);
+
+ return context;
+ }
+
+ public String getInstallRoot() {
+ return null; // just a mock object - no need to implement this
+ }
+
+ public DocumentFragment getInstallationDescriptorExtension() {
+ return null; // just a mock object - no need to implement this
+ }
+
+ public boolean isInstall() {
+ return false; // just a mock object - no need to implement this
+ }
+
+ public void setClassPathElements(List list) {
+ // just a mock object - no need to implement this
+ }
+ }
+}
Modified:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/pom.xml
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/pom.xml?rev=1374742&r1=1374741&r2=1374742&view=diff
==============================================================================
---
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/pom.xml
(original)
+++
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/pom.xml
Sun Aug 19 12:27:01 2012
@@ -62,6 +62,10 @@
<dependencies>
<dependency>
<groupId>org.apache.servicemix</groupId>
+ <artifactId>servicemix-common</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.servicemix</groupId>
<artifactId>servicemix-shared</artifactId>
</dependency>
Modified:
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/src/main/java/org/apache/servicemix/jms/JmsBootstrap.java
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/src/main/java/org/apache/servicemix/jms/JmsBootstrap.java?rev=1374742&r1=1374741&r2=1374742&view=diff
==============================================================================
---
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/src/main/java/org/apache/servicemix/jms/JmsBootstrap.java
(original)
+++
servicemix/components/branches/components-2011.02.x/bindings/servicemix-jms/src/main/java/org/apache/servicemix/jms/JmsBootstrap.java
Sun Aug 19 12:27:01 2012
@@ -16,6 +16,8 @@
*/
package org.apache.servicemix.jms;
+import org.apache.servicemix.common.management.MBeanServerHelper;
+
import javax.jbi.JBIException;
import javax.jbi.component.Bootstrap;
import javax.jbi.component.InstallationContext;
@@ -66,19 +68,12 @@ public class JmsBootstrap implements Boo
configuration.setComponentName(this.context.getComponentName());
configuration.load();
Object mbean = getExtensionMBean();
+
if (mbean != null) {
- this.mbeanName = createExtensionMBeanName();
- MBeanServer server = this.context.getContext().getMBeanServer();
- if (server == null) {
- throw new JBIException("null mBeanServer");
- }
- if (server.isRegistered(this.mbeanName)) {
- server.unregisterMBean(this.mbeanName);
- }
- server.registerMBean(mbean, this.mbeanName);
+ this.mbeanName = MBeanServerHelper.register(getMBeanServer(),
createExtensionMBeanName(), mbean);
}
}
-
+
/* (non-Javadoc)
* @see javax.jbi.component.Bootstrap#cleanUp()
*/
@@ -93,15 +88,7 @@ public class JmsBootstrap implements Boo
}
protected void doCleanUp() throws Exception {
- if (this.mbeanName != null) {
- MBeanServer server = this.context.getContext().getMBeanServer();
- if (server == null) {
- throw new JBIException("null mBeanServer");
- }
- if (server.isRegistered(this.mbeanName)) {
- server.unregisterMBean(this.mbeanName);
- }
- }
+ MBeanServerHelper.unregister(getMBeanServer(), mbeanName);
}
/* (non-Javadoc)
@@ -135,5 +122,11 @@ public class JmsBootstrap implements Boo
protected void doOnUninstall() throws Exception {
}
-
+
+ /*
+ * Get the MBeanServer for the installation context
+ */
+ private MBeanServer getMBeanServer() {
+ return this.context.getContext().getMBeanServer();
+ }
}
Modified:
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/AsyncBaseLifeCycle.java
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/AsyncBaseLifeCycle.java?rev=1374742&r1=1374741&r2=1374742&view=diff
==============================================================================
---
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/AsyncBaseLifeCycle.java
(original)
+++
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/AsyncBaseLifeCycle.java
Sun Aug 19 12:27:01 2012
@@ -33,6 +33,7 @@ import javax.jbi.messaging.MessageExchan
import javax.jbi.messaging.MessagingException;
import javax.jbi.servicedesc.ServiceEndpoint;
import javax.management.MBeanServer;
+import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.transaction.Status;
import javax.transaction.SystemException;
@@ -40,6 +41,7 @@ import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import javax.xml.namespace.QName;
+import org.apache.servicemix.common.management.MBeanServerHelper;
import org.apache.servicemix.executors.Executor;
import org.apache.servicemix.executors.ExecutorFactory;
import org.apache.servicemix.executors.impl.ExecutorFactoryImpl;
@@ -214,20 +216,13 @@ public class AsyncBaseLifeCycle implemen
protected void doInit() throws Exception {
// Register extension mbean
+ MBeanServer server = this.context.getMBeanServer();
Object mbean = getExtensionMBean();
- if (mbean != null) {
- MBeanServer server = this.context.getMBeanServer();
- if (server == null) {
- // TODO: log a warning ?
- // throw new JBIException("null mBeanServer");
- } else {
- this.mbeanName = createExtensionMBeanName();
- if (server.isRegistered(this.mbeanName)) {
- server.unregisterMBean(this.mbeanName);
- }
- server.registerMBean(mbean, this.mbeanName);
- }
+
+ if (server != null && mbean != null) {
+ MBeanServerHelper.register(server, createExtensionMBeanName(),
mbean);
}
+
// Obtain or create the work manager
// When using the WorkManager from ServiceMix,
// some class loader problems can appear when
Added:
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/management/MBeanServerHelper.java
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/management/MBeanServerHelper.java?rev=1374742&view=auto
==============================================================================
---
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/management/MBeanServerHelper.java
(added)
+++
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/main/java/org/apache/servicemix/common/management/MBeanServerHelper.java
Sun Aug 19 12:27:01 2012
@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.servicemix.common.management;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.jbi.JBIException;
+import javax.management.*;
+
+/**
+ * Helper methods to register and unregister objects with a JMX MBeanServer
+ */
+public class MBeanServerHelper {
+
+ private static final Logger LOGGER =
LoggerFactory.getLogger(MBeanServerHelper.class);
+
+ /**
+ * Registers an object with the MBean server using the specified object
name. If another object is already registered,
+ * this method will first unregister it. The method also returns the
final object name after registration, because
+ * some MBean servers will alter the name during the registration process
+ *
+ * @param server the MBean server
+ * @param name the object name
+ * @param object the object to be registered
+ * @return the final object name after registration
+ * @throws JBIException if the MBean server is null or if a problem occurs
during MBean registration
+ */
+ public static ObjectName register(MBeanServer server, ObjectName name,
Object object) throws JBIException {
+ if (server == null) {
+ throw new JBIException("MBeanServer is null when registering MBean
" + name);
+ }
+
+ try {
+ // unregister a previously existing MBean first
+ doUnregister(server, name);
+
+ LOGGER.debug("Registering MBean {}", name);
+ ObjectInstance instance = doRegister(server, name, object);
+
+ ObjectName result = instance.getObjectName();
+ LOGGER.debug("Successfully registered MBean {}", result);
+
+ return result;
+ } catch (JMException e) {
+ throw new JBIException("Exception occured while registering JMX
MBean " + name, e);
+ }
+ }
+
+ private static ObjectInstance doRegister(MBeanServer server, ObjectName
name, Object object) throws JMException, JBIException {
+ try {
+ return server.registerMBean(object, name);
+ } catch (InstanceAlreadyExistsException e) {
+ ObjectName existing = new ObjectName(e.getMessage());
+
+ if (existing.equals(name)) {
+ throw e;
+ } else {
+ // if the server has another instance registered under a
different name,
+ // let's try unregistering that alternative name and retry
registration afterwards
+ LOGGER.debug("Existing MBean {} matches {} - unregistering it
before continuing", existing, name);
+ doUnregister(server, existing);
+
+ return doRegister(server, name, object);
+ }
+ }
+ }
+
+ /**
+ * Unregister the object with the specified name from the MBean server
+ *
+ * @param server the mbean server
+ * @param name the object name
+ *
+ * @throws JBIException if the MBean server is null or if there is a
problem unregistering the MBean
+ */
+ public static void unregister(MBeanServer server, ObjectName name) throws
JBIException {
+ if (name != null) {
+ if (server == null) {
+ throw new JBIException("MBeanServer is null when registering
MBean " + name);
+ }
+
+ try {
+ doUnregister(server, name);
+ } catch (JMException e) {
+ throw new JBIException("Unable to unregister object with name
" + name, e);
+ }
+ }
+ }
+
+ private static void doUnregister(MBeanServer server, ObjectName name)
throws JMException {
+ if (server.isRegistered(name)) {
+ LOGGER.debug("Unregistering MBean {}", name);
+ server.unregisterMBean(name);
+ }
+ }
+}
Added:
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/test/java/org/apache/servicemix/common/management/MBeanServerHelperTest.java
URL:
http://svn.apache.org/viewvc/servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/test/java/org/apache/servicemix/common/management/MBeanServerHelperTest.java?rev=1374742&view=auto
==============================================================================
---
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/test/java/org/apache/servicemix/common/management/MBeanServerHelperTest.java
(added)
+++
servicemix/components/branches/components-2011.02.x/shared-libraries/servicemix-common/src/test/java/org/apache/servicemix/common/management/MBeanServerHelperTest.java
Sun Aug 19 12:27:01 2012
@@ -0,0 +1,135 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.servicemix.common.management;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import javax.jbi.JBIException;
+import javax.management.*;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+/**
+ * Test cases for {@link MBeanServerHelper}
+ */
+public class MBeanServerHelperTest {
+
+ private MBeanServer server = MBeanServerFactory.createMBeanServer();
+ private ObjectName defaultObjectName;
+ private ObjectName alteredObjectName;
+
+ @Before
+ public void setUp() throws Exception {
+ defaultObjectName = new ObjectName("test:Type=bean");
+ alteredObjectName = new
ObjectName("test:Type=bean,node=node1,process=process1,cell=cell1");
+ }
+
+ @Test(expected = JBIException.class)
+ public void testRegisterNullServerThrowsJBIException() throws
NotCompliantMBeanException, MalformedObjectNameException, JBIException {
+ SampleMBean mbean = new SampleMBeanImpl();
+ Object object = new StandardMBean(mbean, SampleMBean.class);
+
+ MBeanServerHelper.register(null, defaultObjectName, object);
+ }
+
+ @Test(expected = JBIException.class)
+ public void testUnregisterNullServerThrowsJBIException() throws Exception {
+ MBeanServerHelper.unregister(null, defaultObjectName);
+ }
+
+ public void testUnregisterNullNameWithoutException() throws Exception {
+ MBeanServerHelper.unregister(server, null);
+ }
+
+ @Test
+ public void testRegisterWithDefaultName() throws Exception {
+ SampleMBean mbean = new SampleMBeanImpl();
+ Object object = new StandardMBean(mbean, SampleMBean.class);
+
+ assertEquals(defaultObjectName, MBeanServerHelper.register(server,
defaultObjectName, object));
+
+ // let's try a subsequent registration as well - this should not be
throwing an exception
+ assertEquals(defaultObjectName, MBeanServerHelper.register(server,
defaultObjectName, object));
+
+ MBeanServerHelper.unregister(server, defaultObjectName);
+ assertFalse(server.isRegistered(defaultObjectName));
+ }
+
+ @Test
+ public void testRegisterWithContainerDefinedName() throws Exception {
+ SampleMBean mbean = new SampleMBeanImpl();
+ Object object = new RenamingStandardMBean(mbean, SampleMBean.class);
+
+ assertEquals(alteredObjectName, MBeanServerHelper.register(server,
defaultObjectName, object));
+
+ // let's try a subsequent registration as well - this should not be
throwing an exception
+ assertEquals(alteredObjectName, MBeanServerHelper.register(server,
defaultObjectName, object));
+
+ MBeanServerHelper.unregister(server, alteredObjectName);
+ assertFalse(server.isRegistered(alteredObjectName));
+ }
+
+ /*
+ * MBean interface definition used for testing
+ */
+ public static interface SampleMBean {
+
+ void doSomething();
+
+ }
+
+ /*
+ * MBean implementation
+ */
+ public static final class SampleMBeanImpl implements SampleMBean {
+
+ public void doSomething() {
+ // graciously do nothing here
+ }
+ }
+
+ /*
+ * {@link StandardMBean} implementation that will provide an alternate
MBean name upon registration
+ * (similar to what e.g. WebSphere does when it appends cell/node/process
information)
+ */
+ public final class RenamingStandardMBean extends StandardMBean implements
MBeanRegistration {
+
+
+ public <T> RenamingStandardMBean(T object, Class<T> type) throws
NotCompliantMBeanException {
+ super(object, type);
+ }
+
+
+ public ObjectName preRegister(MBeanServer mBeanServer, ObjectName
objectName) throws Exception {
+ return alteredObjectName;
+ }
+
+ public void postRegister(Boolean aBoolean) {
+ // graciously do nothing here
+ }
+
+ public void preDeregister() throws Exception {
+ // graciously do nothing here
+ }
+
+ public void postDeregister() {
+ // graciously do nothing here
+ }
+ }
+}
