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 */
017package org.apache.activemq;
018
019import java.util.Enumeration;
020import java.util.Vector;
021import java.util.regex.Matcher;
022import java.util.regex.Pattern;
023
024import javax.jms.ConnectionMetaData;
025
026/**
027 * A <CODE>ConnectionMetaData</CODE> object provides information describing
028 * the <CODE>Connection</CODE> object.
029 */
030public final class ActiveMQConnectionMetaData implements ConnectionMetaData {
031
032    public static final String PROVIDER_VERSION;
033    public static final int PROVIDER_MAJOR_VERSION;
034    public static final int PROVIDER_MINOR_VERSION;
035    public static final String PROVIDER_NAME = "ActiveMQ";
036    public static final String PLATFORM_DETAILS;
037
038    public static final ActiveMQConnectionMetaData INSTANCE = new ActiveMQConnectionMetaData();
039
040    static {
041        String version = null;
042        int major = 0;
043        int minor = 0;
044        try {
045            Package p = Package.getPackage("org.apache.activemq");
046            if (p != null) {
047                version = p.getImplementationVersion();
048                if (version != null) {
049                    Pattern pattern = Pattern.compile("(\\d+)\\.(\\d+).*");
050                    Matcher m = pattern.matcher(version);
051                    if (m.matches()) {
052                        major = Integer.parseInt(m.group(1));
053                        minor = Integer.parseInt(m.group(2));
054                    }
055                }
056            }
057        } catch (Throwable e) {
058        }
059        PROVIDER_VERSION = version;
060        PROVIDER_MAJOR_VERSION = major;
061        PROVIDER_MINOR_VERSION = minor;
062        PLATFORM_DETAILS = ActiveMQConnectionMetaData.getPlatformDetails();
063    }
064
065    private ActiveMQConnectionMetaData() {
066    }
067
068    /**
069     * Gets the JMS API version.
070     *
071     * @return the JMS API version
072     */
073    @Override
074    public String getJMSVersion() {
075        return "1.1";
076    }
077
078    /**
079     * Gets the JMS major version number.
080     *
081     * @return the JMS API major version number
082     */
083    @Override
084    public int getJMSMajorVersion() {
085        return 1;
086    }
087
088    /**
089     * Gets the JMS minor version number.
090     *
091     * @return the JMS API minor version number
092     */
093    @Override
094    public int getJMSMinorVersion() {
095        return 1;
096    }
097
098    /**
099     * Gets the JMS provider name.
100     *
101     * @return the JMS provider name
102     */
103    @Override
104    public String getJMSProviderName() {
105        return "ActiveMQ";
106    }
107
108    /**
109     * Gets the JMS provider version.
110     *
111     * @return the JMS provider version
112     */
113    @Override
114    public String getProviderVersion() {
115        return PROVIDER_VERSION;
116    }
117
118    /**
119     * Gets the JMS provider major version number.
120     *
121     * @return the JMS provider major version number
122     */
123    @Override
124    public int getProviderMajorVersion() {
125        return PROVIDER_MAJOR_VERSION;
126    }
127
128    /**
129     * Gets the JMS provider minor version number.
130     *
131     * @return the JMS provider minor version number
132     */
133    @Override
134    public int getProviderMinorVersion() {
135        return PROVIDER_MINOR_VERSION;
136    }
137
138    /**
139     * Gets an enumeration of the JMSX property names.
140     *
141     * @return an Enumeration of JMSX property names
142     */
143    @Override
144    public Enumeration<String> getJMSXPropertyNames() {
145        Vector<String> jmxProperties = new Vector<String>();
146        jmxProperties.add("JMSXUserID");
147        jmxProperties.add("JMSXGroupID");
148        jmxProperties.add("JMSXGroupSeq");
149        jmxProperties.add("JMSXDeliveryCount");
150        jmxProperties.add("JMSXProducerTXID");
151        return jmxProperties.elements();
152    }
153
154    /**
155     * Get the platform details for the JMS provider.
156     *
157     * @return String containing the platform details
158     */
159    private static String getPlatformDetails() {
160        String details = "java";
161        try {
162            StringBuilder platformInfo = new StringBuilder(128);
163
164            platformInfo.append("JVM: ");
165            platformInfo.append(System.getProperty("java.version"));
166            platformInfo.append(", ");
167            platformInfo.append(System.getProperty("java.vm.version"));
168            platformInfo.append(", ");
169            platformInfo.append(System.getProperty("java.vendor"));
170            platformInfo.append(", OS: ");
171            platformInfo.append(System.getProperty("os.name"));
172            platformInfo.append(", ");
173            platformInfo.append(System.getProperty("os.version"));
174            platformInfo.append(", ");
175            platformInfo.append(System.getProperty("os.arch"));
176
177            details = platformInfo.toString();
178        } catch (Throwable e) {
179        }
180        return details;
181    }
182}