diff options
Diffstat (limited to 'qpid/java/broker/src/main/java/org/apache/qpid/server/management/DefaultManagedObject.java')
-rw-r--r-- | qpid/java/broker/src/main/java/org/apache/qpid/server/management/DefaultManagedObject.java | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/management/DefaultManagedObject.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/management/DefaultManagedObject.java new file mode 100644 index 0000000000..7924964fdf --- /dev/null +++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/management/DefaultManagedObject.java @@ -0,0 +1,156 @@ +/* + * + * 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.qpid.server.management; + +import javax.management.JMException; +import javax.management.MalformedObjectNameException; +import javax.management.NotCompliantMBeanException; +import javax.management.ObjectName; +import javax.management.StandardMBean; + +import org.apache.qpid.AMQException; +import org.apache.qpid.server.registry.ApplicationRegistry; + +/** + * Provides implementation of the boilerplate ManagedObject interface. Most managed objects should find it useful + * to extend this class rather than implementing ManagedObject from scratch. + * + */ +public abstract class DefaultManagedObject extends StandardMBean implements ManagedObject +{ + private Class<?> _managementInterface; + + private String _typeName; + + protected DefaultManagedObject(Class<?> managementInterface, String typeName) + throws NotCompliantMBeanException + { + super(managementInterface); + _managementInterface = managementInterface; + _typeName = typeName; + } + + public String getType() + { + return _typeName; + } + + public Class<?> getManagementInterface() + { + return _managementInterface; + } + + public ManagedObject getParentObject() + { + return null; + } + + public void register() throws JMException + { + getManagedObjectRegistry().registerObject(this); + } + + protected ManagedObjectRegistry getManagedObjectRegistry() + { + return ApplicationRegistry.getInstance().getManagedObjectRegistry(); + } + + public void unregister() throws AMQException + { + try + { + getManagedObjectRegistry().unregisterObject(this); + } + catch (JMException e) + { + throw new AMQException("Error unregistering managed object: " + this + ": " + e, e); + } + } + + public String toString() + { + return getObjectInstanceName() + "[" + getType() + "]"; + } + + + /** + * Created the ObjectName as per the JMX Specs + * @return ObjectName + * @throws MalformedObjectNameException + */ + public ObjectName getObjectName() throws MalformedObjectNameException + { + String name = getObjectInstanceName(); + StringBuffer objectName = new StringBuffer(ManagedObject.DOMAIN); + + objectName.append(":type="); + objectName.append(getHierarchicalType(this)); + + objectName.append(","); + objectName.append(getHierarchicalName(this)); + objectName.append("name=").append(name); + + return new ObjectName(objectName.toString()); + } + + protected ObjectName getObjectNameForSingleInstanceMBean() throws MalformedObjectNameException + { + StringBuffer objectName = new StringBuffer(ManagedObject.DOMAIN); + + objectName.append(":type="); + objectName.append(getHierarchicalType(this)); + + String hierarchyName = getHierarchicalName(this); + if (hierarchyName != null) + { + objectName.append(","); + objectName.append(hierarchyName.substring(0, hierarchyName.lastIndexOf(","))); + } + + return new ObjectName(objectName.toString()); + } + + protected String getHierarchicalType(ManagedObject obj) + { + if (obj.getParentObject() != null) + { + String parentType = getHierarchicalType(obj.getParentObject()).toString(); + return parentType + "." + obj.getType(); + } + else + return obj.getType(); + } + + protected String getHierarchicalName(ManagedObject obj) + { + if (obj.getParentObject() != null) + { + String parentName = obj.getParentObject().getType() + "=" + + obj.getParentObject().getObjectInstanceName() + ","+ + getHierarchicalName(obj.getParentObject()); + + return parentName; + } + else + return ""; + } + +} |