| /* |
| * Copyright 2002,2004 The Apache Software Foundation. |
| * |
| * Licensed 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.commons.jelly.tags.jmx; |
| |
| import javax.management.InstanceAlreadyExistsException; |
| import javax.management.MBeanRegistrationException; |
| import javax.management.MBeanServer; |
| import javax.management.NotCompliantMBeanException; |
| import javax.management.ObjectName; |
| |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.MissingAttributeException; |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.XMLOutput; |
| import org.apache.commons.jelly.impl.CollectionTag; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * Registers a JavaBean or JMX MBean with a server.. |
| * |
| * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
| * @version $Revision: 1.4 $ |
| */ |
| public class RegisterTag extends TagSupport implements CollectionTag { |
| |
| /** The Log to which logging calls will be made. */ |
| private static final Log log = LogFactory.getLog(RegisterTag.class); |
| |
| private ObjectName name; |
| private MBeanServer server; |
| |
| public RegisterTag() { |
| } |
| |
| |
| // CollectionTag interface |
| //------------------------------------------------------------------------- |
| public void addItem(Object bean) throws JellyTagException { |
| try { |
| register(server, bean); |
| } |
| catch (Exception e) { |
| throw new JellyTagException("Failed to register bean: " + bean, e); |
| } |
| } |
| |
| // Tag interface |
| //------------------------------------------------------------------------- |
| public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException { |
| if (name == null) { |
| throw new MissingAttributeException("name"); |
| } |
| if (server == null) { |
| ServerTag serverTag = (ServerTag) findAncestorWithClass(ServerTag.class); |
| if (serverTag == null) { |
| throw new JellyTagException("This class must be nested inside a <server> tag"); |
| } |
| server = serverTag.getServer(); |
| } |
| invokeBody(output); |
| } |
| |
| |
| // Properties |
| //------------------------------------------------------------------------- |
| |
| |
| /** |
| * @return ObjectName |
| */ |
| public ObjectName getName() { |
| return name; |
| } |
| |
| /** |
| * Sets the name. |
| * @param name The name to set |
| */ |
| public void setName(ObjectName name) { |
| this.name = name; |
| } |
| |
| /** |
| * @return MBeanServer |
| */ |
| public MBeanServer getServer() { |
| return server; |
| } |
| |
| /** |
| * Sets the MBeanServer. If this attribute is not supplied then the parent <server> tag |
| * is used to get the MBeanServer instance to use. |
| * |
| * @param server The MBeanServer to register the mbeans with. |
| */ |
| public void setServer(MBeanServer server) { |
| this.server = server; |
| } |
| |
| // Implementation methods |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Registers the given bean with the MBeanServer |
| */ |
| protected void register(MBeanServer server, Object bean) throws InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException { |
| server.registerMBean(bean, getName()); |
| } |
| |
| } |