Example usage for javax.management.modelmbean ModelMBeanAttributeInfo getDescriptor

Introduction

In this page you can find the example usage for javax.management.modelmbean ModelMBeanAttributeInfo getDescriptor.

Prototype

public Descriptor getDescriptor() 

Source Link

Document

Gets a copy of the associated Descriptor for the ModelMBeanAttributeInfo.

Usage

From source file:com.espertech.esper.metrics.jmx.CommonJMXUtil.java

private static ModelMBeanAttributeInfo[] extractAttributeInfo(Object object) {
    Map<String, Method> getters = new HashMap<String, Method>();
    Map<String, Method> setters = new HashMap<String, Method>();
    Map<String, String> descriptions = new HashMap<String, String>();
    for (Method m : object.getClass().getMethods()) {
        JmxGetter getter = m.getAnnotation(JmxGetter.class);
        if (getter != null) {
            getters.put(getter.name(), m);
            descriptions.put(getter.name(), getter.description());
        }//from  www .ja  v  a  2s  .  c om
        JmxSetter setter = m.getAnnotation(JmxSetter.class);
        if (setter != null) {
            setters.put(setter.name(), m);
            descriptions.put(setter.name(), setter.description());
        }
    }

    Set<String> attributes = new HashSet<String>(getters.keySet());
    attributes.addAll(setters.keySet());
    List<ModelMBeanAttributeInfo> infos = new ArrayList<ModelMBeanAttributeInfo>();
    for (String name : attributes) {
        try {
            Method getter = getters.get(name);
            Method setter = setters.get(name);
            ModelMBeanAttributeInfo info = new ModelMBeanAttributeInfo(name, descriptions.get(name), getter,
                    setter);
            Descriptor descriptor = info.getDescriptor();
            if (getter != null)
                descriptor.setField("getMethod", getter.getName());
            if (setter != null)
                descriptor.setField("setMethod", setter.getName());
            info.setDescriptor(descriptor);
            infos.add(info);
        } catch (IntrospectionException e) {
            throw new RuntimeException(e);
        }
    }

    return infos.toArray(new ModelMBeanAttributeInfo[infos.size()]);
}

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From source file:org.eclipse.smila.management.jmx.AgentMBean.java

/**
 * {@inheritDoc}/*from  ww  w  .  java 2 s . c  o  m*/
 * 
 * @see javax.management.DynamicMBean#getAttribute(java.lang.String)
 */
public Object getAttribute(final String attribute)
        throws AttributeNotFoundException, MBeanException, ReflectionException {
    final ModelMBeanAttributeInfo info = _beanInfo.getAttribute(attribute);
    final Descriptor descriptor = info.getDescriptor();
    final String getterMethod = (String) (descriptor.getFieldValue("getMethod"));
    return invoke(getterMethod, ClassHelper.EMPTY_PARAMS, ClassHelper.EMPTY_SIGNATURE);
}

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From source file:org.eclipse.smila.management.jmx.AgentMBean.java

/**
 * {@inheritDoc}/*from   ww  w  .j av a2 s .co m*/
 * 
 * @see javax.management.DynamicMBean#setAttribute(javax.management.Attribute)
 */
public void setAttribute(final Attribute attribute)
        throws AttributeNotFoundException, InvalidAttributeValueException, MBeanException, ReflectionException {
    final ModelMBeanAttributeInfo info = _beanInfo.getAttribute(attribute.getName());
    if (info == null) {
        final String msg = "MBean " + _beanInfo.getClassName()
                + " doesnt contain attribute Information for method " + attribute.getName()
                + ", please check if you have defined a gettter and setter for this Attriubute!";
        _log.error(msg);
        throw new AttributeNotFoundException(msg);
    }
    final Descriptor descriptor = info.getDescriptor();
    final String setterMethod = (String) (descriptor.getFieldValue("setMethod"));
    final String setterSignatureClass = (String) (descriptor.getFieldValue("setterSignatureClass"));
    invoke(setterMethod, new Object[] { attribute.getValue() }, new String[] { setterSignatureClass });
}

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From source file:org.hyperic.hq.product.jmx.ServiceTypeFactory.java

private MeasurementInfo createMeasurementInfo(final ServiceType serviceType, final ProductPlugin productPlugin,
        ModelMBeanAttributeInfo attribute) {
    Properties measurementProperties = new Properties();

    Descriptor descriptor = attribute.getDescriptor();
    String units = (String) descriptor.getFieldValue(MeasurementInfo.ATTR_UNITS);
    if ("s".equals(units)) {
        units = MeasurementConstants.UNITS_SECONDS;
    }/*from  w w  w  .  ja va 2 s  .c  o m*/
    if (!VALID_UNITS.contains(units)) {
        measurementProperties.put(MeasurementInfo.ATTR_UNITS, "none");
    } else {
        measurementProperties.put(MeasurementInfo.ATTR_UNITS, units);
    }
    final String displayName = (String) descriptor.getFieldValue("displayName");
    // Not likely to be null, as JMX impl currently populates it with
    // attribute name if not set
    if (displayName == null) {
        measurementProperties.put(MeasurementInfo.ATTR_NAME, attribute.getName());
    } else {
        measurementProperties.put(MeasurementInfo.ATTR_NAME, displayName);
    }
    measurementProperties.put(MeasurementInfo.ATTR_ALIAS, attribute.getName());
    String metricType = (String) descriptor.getFieldValue("metricType");
    if (metricType == null || !("COUNTER".equals(metricType.toUpperCase()))) {
        //GAUGE
        measurementProperties.put(MeasurementInfo.ATTR_COLLECTION_TYPE, "dynamic");
        measurementProperties.put(MeasurementInfo.ATTR_INTERVAL, "300000");
    } else {
        //COUNTER
        measurementProperties.put(MeasurementInfo.ATTR_COLLECTION_TYPE, "trendsup");
        String rate = (String) descriptor.getFieldValue("rate");
        if (rate != null) {
            measurementProperties.put(MeasurementInfo.ATTR_RATE, rate);
        } else {
            measurementProperties.put(MeasurementInfo.ATTR_RATE, "none");
        }
        measurementProperties.put(MeasurementInfo.ATTR_INTERVAL, "600000");
    }
    String collectionInterval = (String) descriptor.getFieldValue("collectionInterval");
    if (collectionInterval != null) {
        try {
            Long.valueOf(collectionInterval);
            measurementProperties.put(MeasurementInfo.ATTR_INTERVAL, collectionInterval);
        } catch (NumberFormatException e) {
            log.warn("Specified collection interval " + collectionInterval
                    + " is not numeric.  Default value will be used instead.");
        }
    }

    String category = (String) descriptor.getFieldValue("metricCategory");
    if (category == null || !VALID_CATEGORIES.contains(category.toUpperCase())) {
        measurementProperties.put(MeasurementInfo.ATTR_CATEGORY, MeasurementConstants.CAT_UTILIZATION);
    } else {
        measurementProperties.put(MeasurementInfo.ATTR_CATEGORY, category.toUpperCase());
    }
    String indicator = (String) descriptor.getFieldValue("indicator");
    if (indicator == null || "true".equals(indicator.toLowerCase())) {
        //indicator is not in Spring 3.0 @ManagedMetric.  Turn measurement on and make indicator by default
        measurementProperties.put(MeasurementInfo.ATTR_INDICATOR, "true");
        measurementProperties.put(MeasurementInfo.ATTR_DEFAULTON, "true");
    } else {
        measurementProperties.put(MeasurementInfo.ATTR_INDICATOR, "false");
        measurementProperties.put(MeasurementInfo.ATTR_DEFAULTON, "false");
    }
    String defaultOn = (String) descriptor.getFieldValue("defaultOn");
    if (defaultOn != null) {
        if ("true".equals(defaultOn.toLowerCase()) || "false".equals(defaultOn.toLowerCase())) {
            measurementProperties.put(MeasurementInfo.ATTR_DEFAULTON, defaultOn.toLowerCase());
        } else {
            log.warn("Invalid value of " + defaultOn
                    + " specified for defaultOn.  Default value will be used instead.");
        }
    }
    addMeasurementTemplate(measurementProperties, productPlugin, serviceType);
    return createMeasurementInfo(measurementProperties);
}

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