javax.management.modelmbean.ModelMBeanConstructorInfo#javax.management.openmbean.OpenMBeanInfoSupport源码实例Demo

@Override
public MBeanInfo getMBeanInfo() {
    return new OpenMBeanInfoSupport(
            Greeting.class.getName(),            // OpenMBean 类名称
            "Greeting OpenMBean 信息", // OpenMBean 描述信息
            of(),                                // OpenMBeanAttributeInfo[] : 无属性信息
            of(defaultOpenConstructorInfo()),    // OpenMBeanConstructorInfo[] : 默认构造器
            of(greetOpenOperationInfo()),        // OpenMBeanOperationInfo[] : greet(String) 方法
            of()                                 // MBeanNotificationInfo[] : 无通知信息
    );
}
 

private MBeanInfo createMBeanInfo() {
    return new OpenMBeanInfoSupport(ModelControllerMBeanHelper.CLASS_NAME,
            getDescription(providedDescription),
            getAttributes(),
            getConstructors(),
            getOperations(),
            getNotifications(),
            createMBeanDescriptor());
}
 

/**
 *  Initialize the open mbean metadata
 */
private void initOpenMBeanInfo() {
    OpenMBeanAttributeInfoSupport[] attributes = new OpenMBeanAttributeInfoSupport[4];
    OpenMBeanConstructorInfoSupport[] constructors = new OpenMBeanConstructorInfoSupport[1];
    OpenMBeanOperationInfoSupport[] operations = new OpenMBeanOperationInfoSupport[2];
    MBeanNotificationInfo[] notifications = new MBeanNotificationInfo[0];

    try {
        // Define the attributes 
        attributes[0] = new OpenMBeanAttributeInfoSupport(ATTR_ID,
                                                          "Knowledge Base Id",
                                                          SimpleType.STRING,
                                                          true,
                                                          false,
                                                          false);
        attributes[1] = new OpenMBeanAttributeInfoSupport(ATTR_SESSION_COUNT,
                                                          "Number of created sessions for this Knowledge Base",
                                                          SimpleType.LONG,
                                                          true,
                                                          false,
                                                          false);
        attributes[2] = new OpenMBeanAttributeInfoSupport(ATTR_GLOBALS,
                                                          "List of globals",
                                                           globalsTableType,
                                                           true,
                                                           false,
                                                           false );
        attributes[3] = new OpenMBeanAttributeInfoSupport( ATTR_PACKAGES,
                                                           "List of Packages",
                                                           new ArrayType( 1,
                                                                          SimpleType.STRING ),
                                                           true,
                                                           false,
                                                           false );
        //No arg constructor                
        constructors[0] = new OpenMBeanConstructorInfoSupport( "KnowledgeBaseMonitoringMXBean",
                                                               "Constructs a KnowledgeBaseMonitoringMXBean instance.",
                                                               new OpenMBeanParameterInfoSupport[0] );
        //Operations 
        OpenMBeanParameterInfo[] params = new OpenMBeanParameterInfoSupport[0];
        operations[0] = new OpenMBeanOperationInfoSupport( OP_START_INTERNAL_MBEANS,
                                                           "Creates, registers and starts all the dependent MBeans that allow monitor all the details in this KnowledgeBase.",
                                                           params,
                                                           SimpleType.VOID,
                                                           MBeanOperationInfo.INFO );
        operations[1] = new OpenMBeanOperationInfoSupport( OP_STOP_INTERNAL_MBEANS,
                                                           "Stops and disposes all the dependent MBeans that allow monitor all the details in this KnowledgeBase.",
                                                           params,
                                                           SimpleType.VOID,
                                                           MBeanOperationInfo.INFO );

        //Build the info 
        info = new OpenMBeanInfoSupport( this.getClass().getName(),
                                         "Knowledge Base Monitor MXBean",
                                         attributes,
                                         constructors,
                                         operations,
                                         notifications );
    } catch ( Exception e ) {
        e.printStackTrace();
    }
}