JmxDumpUtil.java 文件源码

/**
 * Dumps the details of a single MBean.
 * 
 * @param connection
 *            the server connection (or server itself)
 * @param objectName
 *            the object name
 * @param out
 *            PrintWriter to write the output to
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 * @throws JMException
 *             Signals a JMX error
 */
private static void printMBeanInfo(MBeanServerConnection connection, ObjectName objectName, PrintWriter out)
        throws IOException, JMException
{
    Map<String, Object> attributes = new TreeMap<String, Object>();
    MBeanInfo info = connection.getMBeanInfo(objectName);
    attributes.put("** Object Name", objectName.toString());
    attributes.put("** Object Type", info.getClassName());
    for (MBeanAttributeInfo element : info.getAttributes())
    {
        Object value;
        if (element.isReadable())
        {
            try
            {
                value = connection.getAttribute(objectName, element.getName());
            }
            catch (Exception e)
            {
                value = JmxDumpUtil.PROTECTED_VALUE;
            }
        }
        else
        {
            value = JmxDumpUtil.PROTECTED_VALUE;
        }
        attributes.put(element.getName(), value);
    }
    if (objectName.getCanonicalName().equals("Alfresco:Name=SystemProperties"))
    {
        String osName = (String) attributes.get(OS_NAME);
        if (osName != null && osName.toLowerCase().startsWith("linux"))
        {
            attributes.put(OS_NAME, updateOSNameAttributeForLinux(osName));
        }
    }
    tabulate(JmxDumpUtil.NAME_HEADER, JmxDumpUtil.VALUE_HEADER, attributes, out, 0);
}