001    /**
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     *
010     * http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.activemq.broker.jmx;
019    
020    import javax.management.openmbean.CompositeData;
021    import javax.management.openmbean.TabularData;
022    import java.util.Collection;
023    import java.util.HashMap;
024    import java.util.Map;
025    
026    /**
027     * 
028     */
029    public class CompositeDataHelper {
030    
031        /**
032         * Extracts the named TabularData field from the CompositeData and converts it to a Map
033         * which is the method used to get the typesafe user properties.
034         */
035        public static Map getTabularMap(CompositeData cdata, String fieldName) {
036            Map map = new HashMap();
037            appendTabularMap(map, cdata, fieldName);
038            return map;
039        }
040    
041        public static void appendTabularMap(Map map, CompositeData cdata, String fieldName) {
042            Object tabularObject = cdata.get(fieldName);
043            if (tabularObject instanceof TabularData) {
044                TabularData tabularData = (TabularData) tabularObject;
045                Collection<CompositeData> values = (Collection<CompositeData>) tabularData.values();
046                for (CompositeData compositeData : values) {
047                    Object key = compositeData.get("key");
048                    Object value = compositeData.get("value");
049                    map.put(key, value);
050                }
051            }
052        }
053    
054        /**
055         * Returns a map of all the user properties in the given message {@link javax.management.openmbean.CompositeData}
056         * object
057         *
058         * @param cdata
059         * @return
060         */
061        public static Map getMessageUserProperties(CompositeData cdata) {
062            Map map = new HashMap();
063            appendTabularMap(map, cdata, CompositeDataConstants.STRING_PROPERTIES);
064            appendTabularMap(map, cdata, CompositeDataConstants.BOOLEAN_PROPERTIES);
065            appendTabularMap(map, cdata, CompositeDataConstants.BYTE_PROPERTIES);
066            appendTabularMap(map, cdata, CompositeDataConstants.SHORT_PROPERTIES);
067            appendTabularMap(map, cdata, CompositeDataConstants.INT_PROPERTIES);
068            appendTabularMap(map, cdata, CompositeDataConstants.LONG_PROPERTIES);
069            appendTabularMap(map, cdata, CompositeDataConstants.FLOAT_PROPERTIES);
070            appendTabularMap(map, cdata, CompositeDataConstants.DOUBLE_PROPERTIES);
071            return map;
072        }
073    }