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    package org.apache.activemq;
018    
019    import java.util.Enumeration;
020    import java.util.Vector;
021    import java.util.regex.Matcher;
022    import java.util.regex.Pattern;
023    
024    import javax.jms.ConnectionMetaData;
025    
026    /**
027     * A <CODE>ConnectionMetaData</CODE> object provides information describing
028     * the <CODE>Connection</CODE> object.
029     */
030    
031    public final class ActiveMQConnectionMetaData implements ConnectionMetaData {
032    
033        public static final String PROVIDER_VERSION;
034        public static final int PROVIDER_MAJOR_VERSION;
035        public static final int PROVIDER_MINOR_VERSION;
036    
037        public static final ActiveMQConnectionMetaData INSTANCE = new ActiveMQConnectionMetaData();
038    
039        static {
040            String version = null;
041            int major = 0;
042            int minor = 0;
043            try {
044                Package p = Package.getPackage("org.apache.activemq");
045                if (p != null) {
046                    version = p.getImplementationVersion();
047                    Pattern pattern = Pattern.compile("(\\d+)\\.(\\d+).*");
048                    Matcher m = pattern.matcher(version);
049                    if (m.matches()) {
050                        major = Integer.parseInt(m.group(1));
051                        minor = Integer.parseInt(m.group(2));
052                    }
053                }
054            } catch (Throwable e) {
055            }
056            PROVIDER_VERSION = version;
057            PROVIDER_MAJOR_VERSION = major;
058            PROVIDER_MINOR_VERSION = minor;
059        }
060    
061        private ActiveMQConnectionMetaData() {
062        }
063    
064        /**
065         * Gets the JMS API version.
066         * 
067         * @return the JMS API version
068         */
069    
070        public String getJMSVersion() {
071            return "1.1";
072        }
073    
074        /**
075         * Gets the JMS major version number.
076         * 
077         * @return the JMS API major version number
078         */
079    
080        public int getJMSMajorVersion() {
081            return 1;
082        }
083    
084        /**
085         * Gets the JMS minor version number.
086         * 
087         * @return the JMS API minor version number
088         */
089    
090        public int getJMSMinorVersion() {
091            return 1;
092        }
093    
094        /**
095         * Gets the JMS provider name.
096         * 
097         * @return the JMS provider name
098         */
099    
100        public String getJMSProviderName() {
101            return "ActiveMQ";
102        }
103    
104        /**
105         * Gets the JMS provider version.
106         * 
107         * @return the JMS provider version
108         */
109    
110        public String getProviderVersion() {
111            return PROVIDER_VERSION;
112        }
113    
114        /**
115         * Gets the JMS provider major version number.
116         * 
117         * @return the JMS provider major version number
118         */
119    
120        public int getProviderMajorVersion() {
121            return PROVIDER_MAJOR_VERSION;
122        }
123    
124        /**
125         * Gets the JMS provider minor version number.
126         * 
127         * @return the JMS provider minor version number
128         */
129    
130        public int getProviderMinorVersion() {
131            return PROVIDER_MINOR_VERSION;
132        }
133    
134        /**
135         * Gets an enumeration of the JMSX property names.
136         * 
137         * @return an Enumeration of JMSX property names
138         */
139    
140        public Enumeration<String> getJMSXPropertyNames() {
141            Vector<String> jmxProperties = new Vector<String>();
142            jmxProperties.add("JMSXGroupID");
143            jmxProperties.add("JMSXGroupSeq");
144            jmxProperties.add("JMSXDeliveryCount");
145            jmxProperties.add("JMSXProducerTXID");
146            return jmxProperties.elements();
147        }
148    }