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
018 package org.apache.geronimo.system.jmx;
019
020 import java.util.Iterator;
021 import java.util.List;
022 import java.util.Set;
023 import javax.management.MBeanAttributeInfo;
024 import javax.management.MBeanConstructorInfo;
025 import javax.management.MBeanInfo;
026 import javax.management.MBeanNotificationInfo;
027 import javax.management.MBeanOperationInfo;
028 import javax.management.MBeanParameterInfo;
029
030 import org.apache.geronimo.gbean.GAttributeInfo;
031 import org.apache.geronimo.gbean.GBeanInfo;
032 import org.apache.geronimo.gbean.GOperationInfo;
033 import org.apache.geronimo.kernel.management.NotificationType;
034
035
036 /**
037 * Helper class for JMX Operations
038 *
039 * @version $Rev: 485321 $ $Date: 2006-12-10 19:14:46 -0500 (Sun, 10 Dec 2006) $
040 */
041 public final class JMXUtil {
042 private JMXUtil() {
043 }
044
045 public static MBeanInfo toMBeanInfo(GBeanInfo gBeanInfo) {
046 String className = gBeanInfo.getClassName();
047 String description = "No description available";
048
049 // attributes
050 Set gbeanAttributes = gBeanInfo.getAttributes();
051 MBeanAttributeInfo[] attributes = new MBeanAttributeInfo[gbeanAttributes.size()];
052 int a = 0;
053 for (Iterator iterator = gbeanAttributes.iterator(); iterator.hasNext();) {
054 GAttributeInfo gAttributeInfo = (GAttributeInfo) iterator.next();
055 attributes[a] = new MBeanAttributeInfo(gAttributeInfo.getName(), gAttributeInfo.getType(), "no description available", gAttributeInfo.isReadable(), gAttributeInfo.isWritable(), isIs(gAttributeInfo));
056 a++;
057 }
058
059 //we don't expose managed constructors
060 MBeanConstructorInfo[] constructors = new MBeanConstructorInfo[0];
061
062 // operations
063 Set gbeanOperations = gBeanInfo.getOperations();
064 MBeanOperationInfo[] operations = new MBeanOperationInfo[gbeanOperations.size()];
065 int o = 0;
066 for (Iterator iterator = gbeanOperations.iterator(); iterator.hasNext();) {
067 GOperationInfo gOperationInfo = (GOperationInfo) iterator.next();
068 //list of class names
069 List gparameters = gOperationInfo.getParameterList();
070 MBeanParameterInfo[] parameters = new MBeanParameterInfo[gparameters.size()];
071 int p = 0;
072 for (Iterator piterator = gparameters.iterator(); piterator.hasNext();) {
073 String type = (String) piterator.next();
074 parameters[p] = new MBeanParameterInfo("parameter" + p, type, "no description available");
075 p++;
076 }
077 operations[o] = new MBeanOperationInfo(gOperationInfo.getName(), "no description available", parameters, gOperationInfo.getReturnType() , MBeanOperationInfo.UNKNOWN);
078 o++;
079 }
080
081 MBeanNotificationInfo[] notifications = new MBeanNotificationInfo[1];
082 notifications[0] = new MBeanNotificationInfo(NotificationType.TYPES, "javax.management.Notification", "J2EE Notifications");
083
084 MBeanInfo mbeanInfo = new MBeanInfo(className, description, attributes, constructors, operations, notifications);
085 return mbeanInfo;
086 }
087
088 private static boolean isIs(GAttributeInfo gAttributeInfo) {
089 String getterName = gAttributeInfo.getGetterName();
090 if (getterName == null) {
091 return false;
092 }
093 return getterName.startsWith("is");
094 }
095 }