Example usage for javax.management MBeanException getStackTrace

Introduction

In this page you can find the example usage for javax.management MBeanException getStackTrace.

Prototype

public StackTraceElement[] getStackTrace() 

Source Link

Document

Provides programmatic access to the stack trace information printed by #printStackTrace() .

Usage

From source file:org.apache.hadoop.test.system.AbstractDaemonClient.java

/**
 * Method implements all logic for receiving a bean's attribute.
 * If any initializations such as establishing bean server connections, etc.
 * are need it will do it.//from  w w  w. j av  a  2s.  co m
 * @param serviceName name of the service where MBean is registered (NameNode)
 * @param type name of the MXBean class
 * @param attributeName name of the attribute to be retrieved
 * @return Object value of the attribute or <code>null</code> if not found
 * @throws IOException is thrown in case of any errors
 */
protected Object getJmxAttribute(String serviceName, String type, String attributeName) throws IOException {
    Object retAttribute = null;
    String domain = null;
    if (isJmxEnabled()) {
        try {
            MBeanServerConnection conn = establishJmxConnection(getHostName(), getJmxPortNumber());
            for (String d : conn.getDomains()) {
                if (d != null && d.startsWith(HADOOP_JMX_DOMAIN))
                    domain = d;
            }
            if (!jmxObjectNames.containsKey(type))
                jmxObjectNames.put(type, getJmxBeanName(domain, serviceName, type));
            retAttribute = conn.getAttribute(jmxObjectNames.get(type), attributeName);
        } catch (MBeanException e) {
            LOG.debug(e.getStackTrace());
            throw new IOException(e);
        } catch (AttributeNotFoundException e) {
            LOG.warn(e.getStackTrace());
            throw new IOException(e);
        } catch (InstanceNotFoundException e) {
            LOG.warn(e.getStackTrace());
            throw new IOException(e);
        } catch (ReflectionException e) {
            LOG.debug(e.getStackTrace());
            throw new IOException(e);
        }
    }
    return retAttribute;
}

---