本文整理了Java中backtype.storm.task.TopologyContext.getThisOutputFields()方法的一些代码示例，展示了TopologyContext.getThisOutputFields()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。TopologyContext.getThisOutputFields()方法的具体详情如下：
包路径：backtype.storm.task.TopologyContext
类名称：TopologyContext
方法名：getThisOutputFields

TopologyContext.getThisOutputFields介绍

[英]Gets the declared output fields for the specified stream id for the component this task is a part of.
[中]获取此任务所属组件的指定流id的声明输出字段。

代码示例

代码示例来源：origin: alibaba/jstorm

/**
 * Gets the declared output fields for the specified stream id for the component this task is a part of.
 */
public Map<String, List<String>> getThisOutputFieldsForStreams() {
  Map<String, List<String>> streamToFields = new HashMap<>();
  for (String stream : this.getThisStreams()) {
    streamToFields.put(stream, this.getThisOutputFields(stream).toList());
  }
  return streamToFields;
}

代码示例来源：origin: alibaba/jstorm

Map<String, Grouping> component_grouping = entry.getValue();
Fields out_fields = topology_context.getThisOutputFields(stream_id);

代码示例来源：origin: alibaba/mdrill

public static Map<String, Map<String, MkGrouper>> outbound_components(
    TopologyContext topology_context) {
  Map<String, Map<String, MkGrouper>> rr = new HashMap<String, Map<String, MkGrouper>>();
  // <Stream_id,<component,Grouping>>
  Map<String, Map<String, Grouping>> output_groupings = topology_context
      .getThisTargets();
  for (Entry<String, Map<String, Grouping>> entry : output_groupings
      .entrySet()) {
    Map<String, Grouping> component_grouping = entry.getValue();
    String stream_id = entry.getKey();
    Fields out_fields = topology_context.getThisOutputFields(stream_id);
    Map<String, MkGrouper> componentGrouper = new HashMap<String, MkGrouper>();
    for (Entry<String, Grouping> cg : component_grouping.entrySet()) {
      String component = cg.getKey();
      Grouping tgrouping = cg.getValue();
      int num_tasks = topology_context.getComponentTasks(component)
          .size();
      if (num_tasks > 0) {
        MkGrouper grouper = new MkGrouper(out_fields, tgrouping,
            num_tasks);
        componentGrouper.put(component, grouper);
      }
    }
    if (componentGrouper.size() > 0) {
      rr.put(stream_id, componentGrouper);
    }
  }
  return rr;
}

代码示例来源：origin: com.alibaba.jstorm/jstorm-core

/**
 * Gets the declared output fields for the specified stream id for the component this task is a part of.
 */
public Map<String, List<String>> getThisOutputFieldsForStreams() {
  Map<String, List<String>> streamToFields = new HashMap<String, List<String>>();
  for (String stream : this.getThisStreams()) {
    streamToFields.put(stream, this.getThisOutputFields(stream).toList());
  }
  return streamToFields;
}

代码示例来源：origin: com.alibaba.jstorm/jstorm-core

/**
 * get current task's output <Stream_id, <componentId, MkGrouper>>
 */
public static Map<String, Map<String, MkGrouper>> outbound_components(TopologyContext topology_context, WorkerData workerData) {
  Map<String, Map<String, MkGrouper>> rr = new HashMap<String, Map<String, MkGrouper>>();
  // <Stream_id,<component,Grouping>>
  Map<String, Map<String, Grouping>> output_groupings = topology_context.getThisTargets();
  for (Entry<String, Map<String, Grouping>> entry : output_groupings.entrySet()) {
    String stream_id = entry.getKey();
    Map<String, Grouping> component_grouping = entry.getValue();
    Fields out_fields = topology_context.getThisOutputFields(stream_id);
    Map<String, MkGrouper> componentGrouper = new HashMap<String, MkGrouper>();
    for (Entry<String, Grouping> cg : component_grouping.entrySet()) {
      String component = cg.getKey();
      Grouping tgrouping = cg.getValue();
      List<Integer> outTasks = topology_context.getComponentTasks(component);
      // ATTENTION: If topology set one component parallelism as 0
      // so we don't need send tuple to it
      if (outTasks.size() > 0) {
        MkGrouper grouper = new MkGrouper(topology_context, out_fields, tgrouping, component, stream_id, workerData);
        componentGrouper.put(component, grouper);
      }
      LOG.info("outbound_components, {}-{} for task-{} on {}", component, outTasks, topology_context.getThisTaskId(), stream_id);
    }
    if (componentGrouper.size() > 0) {
      rr.put(stream_id, componentGrouper);
    }
  }
  return rr;
}