Example usage for org.apache.hadoop.util ReflectionUtils getDeclaredFieldsIncludingInherited

Introduction

In this page you can find the example usage for org.apache.hadoop.util ReflectionUtils getDeclaredFieldsIncludingInherited.

Prototype

public static List<Field> getDeclaredFieldsIncludingInherited(Class<?> clazz) 

Source Link

Document

Gets all the declared fields of a class including fields declared in superclasses.

Usage

From source file:com.datatorrent.stram.engine.Node.java

License:Apache License

public Node(OPERATOR operator, OperatorContext context) {
    this.operator = operator;
    this.context = context;

    outputs = new HashMap<String, Sink<Object>>();

    descriptor = new PortMappingDescriptor();
    Operators.describe(operator, descriptor);

    endWindowDequeueTimes = new HashMap<SweepableReservoir, Long>();
    tmb = ManagementFactory.getThreadMXBean();
    commandResponse = new LinkedBlockingQueue<StatsListener.OperatorResponse>();

    metricFields = Lists.newArrayList();
    for (Field field : ReflectionUtils.getDeclaredFieldsIncludingInherited(operator.getClass())) {
        if (field.isAnnotationPresent(AutoMetric.class)) {
            metricFields.add(field);//from  www. java 2 s  .c o m
            field.setAccessible(true);
        }
    }

    metricMethods = Maps.newHashMap();
    try {
        for (PropertyDescriptor pd : Introspector.getBeanInfo(operator.getClass()).getPropertyDescriptors()) {
            Method readMethod = pd.getReadMethod();
            if (readMethod != null) {
                AutoMetric rfa = readMethod.getAnnotation(AutoMetric.class);
                if (rfa != null) {
                    metricMethods.put(pd.getName(), readMethod);
                }
            }
        }
    } catch (IntrospectionException e) {
        throw new RuntimeException("introspecting {}", e);
    }
}

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