BaseJMXMonitorDataCatchWorker.java 文件源码

/**
 * scan out all monitor MBeans
 *
 * @param mbsc
 * @return
 * @throws IOException
 */
protected Set<ObjectInstance> scanMBeans(MBeanServerConnection mbsc, String pattern) throws IOException {

    Set<ObjectInstance> monitorMBeans = null;
    int count = 2;
    while (count > 0) {
        try {
            monitorMBeans = mbsc.queryMBeans(new ObjectName(pattern), null);

            if (monitorMBeans == null || monitorMBeans.isEmpty()) {
                ThreadHelper.suspend(2000);
            }
            else {
                break;
            }

        }
        catch (MalformedObjectNameException e) {
            // ignore
        }
        count--;
    }

    return monitorMBeans;
}