Examples with MBeanInfo javax.management.MBeanInfo used on opensource projects

Example 91 with MBeanInfo

use of javax.management.MBeanInfo in project flink by apache.

the class JMXReporterTest method testHistogramReporting.

/**
	 * Tests that histograms are properly reported via the JMXReporter.
	 */
@Test
public void testHistogramReporting() throws Exception {
    MetricRegistry registry = null;
    String histogramName = "histogram";
    try {
        Configuration config = new Configuration();
        config.setString(ConfigConstants.METRICS_REPORTERS_LIST, "jmx_test");
        config.setString(ConfigConstants.METRICS_REPORTER_PREFIX + "jmx_test." + ConfigConstants.METRICS_REPORTER_CLASS_SUFFIX, JMXReporter.class.getName());
        registry = new MetricRegistry(MetricRegistryConfiguration.fromConfiguration(config));
        TaskManagerMetricGroup metricGroup = new TaskManagerMetricGroup(registry, "localhost", "tmId");
        TestingHistogram histogram = new TestingHistogram();
        metricGroup.histogram(histogramName, histogram);
        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
        ObjectName objectName = new ObjectName(JMX_DOMAIN_PREFIX + "taskmanager." + histogramName, JMXReporter.generateJmxTable(metricGroup.getAllVariables()));
        MBeanInfo info = mBeanServer.getMBeanInfo(objectName);
        MBeanAttributeInfo[] attributeInfos = info.getAttributes();
        assertEquals(11, attributeInfos.length);
        assertEquals(histogram.getCount(), mBeanServer.getAttribute(objectName, "Count"));
        assertEquals(histogram.getStatistics().getMean(), mBeanServer.getAttribute(objectName, "Mean"));
        assertEquals(histogram.getStatistics().getStdDev(), mBeanServer.getAttribute(objectName, "StdDev"));
        assertEquals(histogram.getStatistics().getMax(), mBeanServer.getAttribute(objectName, "Max"));
        assertEquals(histogram.getStatistics().getMin(), mBeanServer.getAttribute(objectName, "Min"));
        assertEquals(histogram.getStatistics().getQuantile(0.5), mBeanServer.getAttribute(objectName, "Median"));
        assertEquals(histogram.getStatistics().getQuantile(0.75), mBeanServer.getAttribute(objectName, "75thPercentile"));
        assertEquals(histogram.getStatistics().getQuantile(0.95), mBeanServer.getAttribute(objectName, "95thPercentile"));
        assertEquals(histogram.getStatistics().getQuantile(0.98), mBeanServer.getAttribute(objectName, "98thPercentile"));
        assertEquals(histogram.getStatistics().getQuantile(0.99), mBeanServer.getAttribute(objectName, "99thPercentile"));
        assertEquals(histogram.getStatistics().getQuantile(0.999), mBeanServer.getAttribute(objectName, "999thPercentile"));
    } finally {
        if (registry != null) {
            registry.shutdown();
        }
    }
}

Example 92 with MBeanInfo

use of javax.management.MBeanInfo in project tomcat by apache.

the class Registry method getType.

// -------------------- Helpers  --------------------
/**
     * Get the type of an attribute of the object, from the metadata.
     *
     * @param oname The bean name
     * @param attName The attribute name
     * @return null if metadata about the attribute is not found
     * @since 1.1
     */
public String getType(ObjectName oname, String attName) {
    String type = null;
    MBeanInfo info = null;
    try {
        info = server.getMBeanInfo(oname);
    } catch (Exception e) {
        log.info("Can't find metadata for object" + oname);
        return null;
    }
    MBeanAttributeInfo[] attInfo = info.getAttributes();
    for (int i = 0; i < attInfo.length; i++) {
        if (attName.equals(attInfo[i].getName())) {
            type = attInfo[i].getType();
            return type;
        }
    }
    return null;
}

Example 93 with MBeanInfo

use of javax.management.MBeanInfo in project tomcat by apache.

the class ManagedBean method getMBeanInfo.

/**
     * Create and return a <code>ModelMBeanInfo</code> object that
     * describes this entire managed bean.
     * @return the MBean info
     */
MBeanInfo getMBeanInfo() {
    // Return our cached information (if any)
    mBeanInfoLock.readLock().lock();
    try {
        if (info != null) {
            return info;
        }
    } finally {
        mBeanInfoLock.readLock().unlock();
    }
    mBeanInfoLock.writeLock().lock();
    try {
        if (info == null) {
            // Create subordinate information descriptors as required
            AttributeInfo[] attrs = getAttributes();
            MBeanAttributeInfo[] attributes = new MBeanAttributeInfo[attrs.length];
            for (int i = 0; i < attrs.length; i++) attributes[i] = attrs[i].createAttributeInfo();
            OperationInfo[] opers = getOperations();
            MBeanOperationInfo[] operations = new MBeanOperationInfo[opers.length];
            for (int i = 0; i < opers.length; i++) operations[i] = opers[i].createOperationInfo();
            NotificationInfo[] notifs = getNotifications();
            MBeanNotificationInfo[] notifications = new MBeanNotificationInfo[notifs.length];
            for (int i = 0; i < notifs.length; i++) notifications[i] = notifs[i].createNotificationInfo();
            // Construct and return a new ModelMBeanInfo object
            info = new MBeanInfo(getClassName(), getDescription(), attributes, new MBeanConstructorInfo[] {}, operations, notifications);
        }
        return info;
    } finally {
        mBeanInfoLock.writeLock().unlock();
    }
}

Example 94 with MBeanInfo

use of javax.management.MBeanInfo in project hbase by apache.

the class TestStochasticBalancerJmxMetrics method readJmxMetrics.

/**
   * Read the attributes from Hadoop->HBase->Master->Balancer in JMX
   * @throws IOException 
   */
private Set<String> readJmxMetrics() throws IOException {
    JMXConnector connector = null;
    ObjectName target = null;
    MBeanServerConnection mb = null;
    try {
        connector = JMXConnectorFactory.connect(JMXListener.buildJMXServiceURL(connectorPort, connectorPort));
        mb = connector.getMBeanServerConnection();
        Hashtable<String, String> pairs = new Hashtable<>();
        pairs.put("service", "HBase");
        pairs.put("name", "Master");
        pairs.put("sub", "Balancer");
        target = new ObjectName("Hadoop", pairs);
        MBeanInfo beanInfo = mb.getMBeanInfo(target);
        Set<String> existingAttrs = new HashSet<>();
        for (MBeanAttributeInfo attrInfo : beanInfo.getAttributes()) {
            existingAttrs.add(attrInfo.getName());
        }
        return existingAttrs;
    } catch (Exception e) {
        LOG.warn("Failed to get bean!!! " + target, e);
        if (mb != null) {
            Set<ObjectInstance> instances = mb.queryMBeans(null, null);
            Iterator<ObjectInstance> iterator = instances.iterator();
            System.out.println("MBean Found:");
            while (iterator.hasNext()) {
                ObjectInstance instance = iterator.next();
                System.out.println("Class Name: " + instance.getClassName());
                System.out.println("Object Name: " + instance.getObjectName());
            }
        }
    } finally {
        if (connector != null) {
            try {
                connector.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
    return null;
}

Example 95 with MBeanInfo

use of javax.management.MBeanInfo in project tomcat by apache.

the class MBeanDumper method dumpBeans.

/**
     * The following code to dump MBeans has been copied from JMXProxyServlet.
     * @param mbeanServer the MBean server
     * @param names a set of object names for which to dump the info
     * @return a string representation of the MBeans
     */
public static String dumpBeans(MBeanServer mbeanServer, Set<ObjectName> names) {
    StringBuilder buf = new StringBuilder();
    Iterator<ObjectName> it = names.iterator();
    while (it.hasNext()) {
        ObjectName oname = it.next();
        buf.append("Name: ");
        buf.append(oname.toString());
        buf.append(CRLF);
        try {
            MBeanInfo minfo = mbeanServer.getMBeanInfo(oname);
            // can't be null - I think
            String code = minfo.getClassName();
            if ("org.apache.commons.modeler.BaseModelMBean".equals(code)) {
                code = (String) mbeanServer.getAttribute(oname, "modelerType");
            }
            buf.append("modelerType: ");
            buf.append(code);
            buf.append(CRLF);
            MBeanAttributeInfo[] attrs = minfo.getAttributes();
            Object value = null;
            for (int i = 0; i < attrs.length; i++) {
                if (!attrs[i].isReadable())
                    continue;
                String attName = attrs[i].getName();
                if ("modelerType".equals(attName))
                    continue;
                if (attName.indexOf('=') >= 0 || attName.indexOf(':') >= 0 || attName.indexOf(' ') >= 0) {
                    continue;
                }
                try {
                    value = mbeanServer.getAttribute(oname, attName);
                } catch (JMRuntimeException rme) {
                    Throwable cause = rme.getCause();
                    if (cause instanceof UnsupportedOperationException) {
                        if (log.isDebugEnabled()) {
                            log.debug("Error getting attribute " + oname + " " + attName, rme);
                        }
                    } else if (cause instanceof NullPointerException) {
                        if (log.isDebugEnabled()) {
                            log.debug("Error getting attribute " + oname + " " + attName, rme);
                        }
                    } else {
                        log.error("Error getting attribute " + oname + " " + attName, rme);
                    }
                    continue;
                } catch (Throwable t) {
                    ExceptionUtils.handleThrowable(t);
                    log.error("Error getting attribute " + oname + " " + attName, t);
                    continue;
                }
                if (value == null)
                    continue;
                String valueString;
                try {
                    Class<?> c = value.getClass();
                    if (c.isArray()) {
                        int len = Array.getLength(value);
                        StringBuilder sb = new StringBuilder("Array[" + c.getComponentType().getName() + "] of length " + len);
                        if (len > 0) {
                            sb.append(CRLF);
                        }
                        for (int j = 0; j < len; j++) {
                            sb.append("\t");
                            Object item = Array.get(value, j);
                            if (item == null) {
                                sb.append("NULL VALUE");
                            } else {
                                try {
                                    sb.append(escape(item.toString()));
                                } catch (Throwable t) {
                                    ExceptionUtils.handleThrowable(t);
                                    sb.append("NON-STRINGABLE VALUE");
                                }
                            }
                            if (j < len - 1) {
                                sb.append(CRLF);
                            }
                        }
                        valueString = sb.toString();
                    } else {
                        valueString = escape(value.toString());
                    }
                    buf.append(attName);
                    buf.append(": ");
                    buf.append(valueString);
                    buf.append(CRLF);
                } catch (Throwable t) {
                    ExceptionUtils.handleThrowable(t);
                }
            }
        } catch (Throwable t) {
            ExceptionUtils.handleThrowable(t);
        }
        buf.append(CRLF);
    }
    return buf.toString();
}