Examples of backtype.storm.task.TopologyContext

backtype.storm.task.TopologyContext
A TopologyContext is given to bolts and spouts in their "prepare" and "open" methods, respectively. This object provides information about the component's place within the topology, such as task ids, inputs and outputs, etc.
The TopologyContext is also used to declare ISubscribedState objects to synchronize state with StateSpouts this object is subscribed to.

    Tuple normalTuple = mockNormalTuple(new Object());
    Tuple tickTuple = MockTupleHelpers.mockTickTuple();


    RollingCountBolt bolt = new RollingCountBolt();
    Map conf = mock(Map.class);
    TopologyContext context = mock(TopologyContext.class);
    OutputCollector collector = mock(OutputCollector.class);
    bolt.prepare(conf, context, collector);


    // when
    bolt.execute(normalTuple);

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    StormTopology topology = workerData.getSysTopology();


    Set<Integer> rtn = new HashSet<Integer>();


    for (Integer taskid : task_ids) {
      TopologyContext context = context_maker.makeTopologyContext(
          topology, taskid, null);


      // <StreamId, <ComponentId, Grouping>>
      Map<String, Map<String, Grouping>> targets = context
          .getThisTargets();
      for (Map<String, Grouping> e : targets.values()) {
        for (String componentId : e.keySet()) {
          List<Integer> tasks = context
              .getComponentTasks(componentId);
          rtn.addAll(tasks);
        }
      }
    }

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      }


      componentToStreamToFields.put(component, streamToFieldsMap);
    }


    return new TopologyContext(topology, stormConf,
        workerData.getTasksToComponent(),
        workerData.getComponentToSortedTasks(),
        componentToStreamToFields, topologyId, resourcePath, pidDir,
        taskId, workerData.getPort(), workerTasks,
        workerData.getDefaultResources(),

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Related Classes of backtype.storm.task.TopologyContext

backtype.storm.generated.ComponentCommon

backtype.storm.generated.StreamInfo

backtype.storm.metric.api.CombinedMetric

backtype.storm.metric.api.IMetric

backtype.storm.metric.api.ReducedMetric

backtype.storm.tuple.Fields

com.alibaba.jstorm.daemon.worker.ContextMaker

com.alibaba.jstorm.daemon.worker.Worker

com.alipay.bluewhale.core.work.context.SystemContextMake

com.alipay.bluewhale.core.work.context.UserContextMake

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