001/*
002 * Copyright 2002-2008 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.jmx.export.assembler;
018
019import java.util.ArrayList;
020import java.util.Collection;
021import java.util.HashMap;
022import java.util.List;
023import java.util.Map;
024import javax.management.modelmbean.ModelMBeanNotificationInfo;
025
026import org.springframework.jmx.export.metadata.JmxMetadataUtils;
027import org.springframework.jmx.export.metadata.ManagedNotification;
028import org.springframework.util.StringUtils;
029
030/**
031 * Base class for MBeanInfoAssemblers that support configurable
032 * JMX notification behavior.
033 *
034 * @author Rob Harrop
035 * @author Juergen Hoeller
036 * @since 2.0
037 */
038public abstract class AbstractConfigurableMBeanInfoAssembler extends AbstractReflectiveMBeanInfoAssembler {
039
040        private ModelMBeanNotificationInfo[] notificationInfos;
041
042        private final Map<String, ModelMBeanNotificationInfo[]> notificationInfoMappings =
043                        new HashMap<String, ModelMBeanNotificationInfo[]>();
044
045
046        public void setNotificationInfos(ManagedNotification[] notificationInfos) {
047                ModelMBeanNotificationInfo[] infos = new ModelMBeanNotificationInfo[notificationInfos.length];
048                for (int i = 0; i < notificationInfos.length; i++) {
049                        ManagedNotification notificationInfo = notificationInfos[i];
050                        infos[i] = JmxMetadataUtils.convertToModelMBeanNotificationInfo(notificationInfo);
051                }
052                this.notificationInfos = infos;
053        }
054
055        public void setNotificationInfoMappings(Map<String, Object> notificationInfoMappings) {
056                for (Map.Entry<String, Object> entry : notificationInfoMappings.entrySet()) {
057                        this.notificationInfoMappings.put(entry.getKey(), extractNotificationMetadata(entry.getValue()));
058                }
059        }
060
061
062        @Override
063        protected ModelMBeanNotificationInfo[] getNotificationInfo(Object managedBean, String beanKey) {
064                ModelMBeanNotificationInfo[] result = null;
065                if (StringUtils.hasText(beanKey)) {
066                        result = this.notificationInfoMappings.get(beanKey);
067                }
068                if (result == null) {
069                        result = this.notificationInfos;
070                }
071                return (result != null ? result : new ModelMBeanNotificationInfo[0]);
072        }
073
074        private ModelMBeanNotificationInfo[] extractNotificationMetadata(Object mapValue) {
075                if (mapValue instanceof ManagedNotification) {
076                        ManagedNotification mn = (ManagedNotification) mapValue;
077                        return new ModelMBeanNotificationInfo[] {JmxMetadataUtils.convertToModelMBeanNotificationInfo(mn)};
078                }
079                else if (mapValue instanceof Collection) {
080                        Collection<?> col = (Collection<?>) mapValue;
081                        List<ModelMBeanNotificationInfo> result = new ArrayList<ModelMBeanNotificationInfo>();
082                        for (Object colValue : col) {
083                                if (!(colValue instanceof ManagedNotification)) {
084                                        throw new IllegalArgumentException(
085                                                        "Property 'notificationInfoMappings' only accepts ManagedNotifications for Map values");
086                                }
087                                ManagedNotification mn = (ManagedNotification) colValue;
088                                result.add(JmxMetadataUtils.convertToModelMBeanNotificationInfo(mn));
089                        }
090                        return result.toArray(new ModelMBeanNotificationInfo[result.size()]);
091                }
092                else {
093                        throw new IllegalArgumentException(
094                                        "Property 'notificationInfoMappings' only accepts ManagedNotifications for Map values");
095                }
096        }
097
098}