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

Example 6 with MBeanInfo

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

the class JMXAccessorSetTask method getMBeanAttributeType.

/**
     * Get MBean Attribute from Mbean Server
     *
     * @param jmxServerConnection The JMX connection name
     * @param name The MBean name
     * @param attribute The attribute name
     * @return The type of the attribute
     * @throws Exception An error occurred
     */
protected String getMBeanAttributeType(MBeanServerConnection jmxServerConnection, String name, String attribute) throws Exception {
    ObjectName oname = new ObjectName(name);
    String mattrType = null;
    MBeanInfo minfo = jmxServerConnection.getMBeanInfo(oname);
    MBeanAttributeInfo[] attrs = minfo.getAttributes();
    for (int i = 0; mattrType == null && i < attrs.length; i++) {
        if (attribute.equals(attrs[i].getName()))
            mattrType = attrs[i].getType();
    }
    return mattrType;
}

Example 7 with MBeanInfo

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

the class Registry method getMethodInfo.

/**
     * Find the operation info for a method
     *
     * @param oname The bean name
     * @param opName The operation name
     * @return the operation info for the specified operation
     */
public MBeanOperationInfo getMethodInfo(ObjectName oname, String opName) {
    MBeanInfo info = null;
    try {
        info = server.getMBeanInfo(oname);
    } catch (Exception e) {
        log.info("Can't find metadata " + oname);
        return null;
    }
    MBeanOperationInfo[] attInfo = info.getOperations();
    for (int i = 0; i < attInfo.length; i++) {
        if (opName.equals(attInfo[i].getName())) {
            return attInfo[i];
        }
    }
    return null;
}

Example 8 with MBeanInfo

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

the class TestLegacyMetrics method testMetricsMBean.

@Test
public void testMetricsMBean() throws Exception {
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    final ObjectName oname = new ObjectName("org.apache.hadoop.hive.common.metrics:type=MetricsMBean");
    MBeanInfo mBeanInfo = mbs.getMBeanInfo(oname);
    // check implementation class:
    assertEquals(MetricsMBeanImpl.class.getName(), mBeanInfo.getClassName());
    // check reset operation:
    MBeanOperationInfo[] oops = mBeanInfo.getOperations();
    boolean resetFound = false;
    for (MBeanOperationInfo op : oops) {
        if ("reset".equals(op.getName())) {
            resetFound = true;
            break;
        }
    }
    assertTrue(resetFound);
    // add metric with a non-null value:
    Attribute attr = new Attribute("fooMetric", Long.valueOf(-77));
    mbs.setAttribute(oname, attr);
    mBeanInfo = mbs.getMBeanInfo(oname);
    MBeanAttributeInfo[] attrinuteInfos = mBeanInfo.getAttributes();
    assertEquals(1, attrinuteInfos.length);
    boolean attrFound = false;
    for (MBeanAttributeInfo info : attrinuteInfos) {
        if ("fooMetric".equals(info.getName())) {
            assertEquals("java.lang.Long", info.getType());
            assertTrue(info.isReadable());
            assertTrue(info.isWritable());
            assertFalse(info.isIs());
            attrFound = true;
            break;
        }
    }
    assertTrue(attrFound);
    // check metric value:
    Object v = mbs.getAttribute(oname, "fooMetric");
    assertEquals(Long.valueOf(-77), v);
    // reset the bean:
    Object result = mbs.invoke(oname, "reset", new Object[0], new String[0]);
    assertNull(result);
    // the metric value must be zeroed:
    v = mbs.getAttribute(oname, "fooMetric");
    assertEquals(Long.valueOf(0), v);
}

Example 9 with MBeanInfo

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

the class MetricsMBeanImpl method getMBeanInfo.

@Override
public MBeanInfo getMBeanInfo() {
    if (dirtyAttributeInfoCache) {
        synchronized (metricsMap) {
            attributeInfos = new MBeanAttributeInfo[metricsMap.size()];
            int i = 0;
            for (String key : metricsMap.keySet()) {
                attributeInfos[i] = new MBeanAttributeInfo(key, metricsMap.get(key).getClass().getName(), key, true, true, /*writable*/
                false);
                i++;
            }
            dirtyAttributeInfoCache = false;
        }
    }
    return new MBeanInfo(this.getClass().getName(), "metrics information", attributeInfos, ctors, ops, notifs);
}

Example 10 with MBeanInfo

use of javax.management.MBeanInfo in project jcollectd by collectd.

the class MBeanCollector method collect.

public void collect(MBeanQuery query, ObjectName name) throws Exception {
    MBeanServerConnection conn = _sender.getMBeanServerConnection();
    String plugin = query.getPlugin();
    if (plugin == null) {
        plugin = name.getDomain();
    }
    Map<String, MBeanAttributeInfo> attrInfo = null;
    if (_useDescriptors) {
        MBeanInfo info = conn.getMBeanInfo(name);
        attrInfo = new HashMap<String, MBeanAttributeInfo>();
        for (MBeanAttributeInfo ainfo : info.getAttributes()) {
            attrInfo.put(ainfo.getName(), ainfo);
        }
    }
    for (MBeanAttribute attr : query.getAttributes()) {
        String attrName = attr.getAttributeName();
        Object obj;
        try {
            obj = conn.getAttribute(name, attrName);
        } catch (Exception e) {
            //XXX remove attr for future collection e.g. UnsupportedOperation
            continue;
        }
        if (_useDescriptors) {
            //e.g. spring @ManagedMetric(metricType = MetricType.COUNTER)
            try {
                Descriptor descriptor = (Descriptor) _getDescriptor.invoke(attrInfo.get(attrName), (Object[]) null);
                Object type = descriptor.getFieldValue(_metricTypeField);
                if (TypesDB.NAME_COUNTER.equals(type)) {
                    if (attr.getTypeName().equals(TypesDB.NAME_GAUGE)) {
                        attr.setTypeName(TypesDB.NAME_COUNTER);
                    }
                    attr.setDataType(Network.DS_TYPE_COUNTER);
                }
            } catch (Exception e) {
            }
        }
        if (obj instanceof CompositeData) {
            CompositeData data = (CompositeData) obj;
            String key = attr.getCompositeKey();
            if (key == null) {
                //no key specified; collect all
                Set<String> keys = data.getCompositeType().keySet();
                for (String ckey : keys) {
                    obj = data.get(ckey);
                    if (!isNumber(obj)) {
                        continue;
                    }
                    dispatch(query, plugin, attrName + "." + ckey, name, attr, (Number) obj);
                }
                continue;
            } else {
                obj = data.get(key);
            }
        }
        if (!isNumber(obj)) {
            continue;
        }
        dispatch(query, plugin, attr.getName(), name, attr, (Number) obj);
    }
    _sender.flush();
}