Package backtype.storm.topology

Examples of backtype.storm.topology.OutputFieldsGetter

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                declarer.directGrouping(boltId(i-1), Constants.COORDINATED_STREAM_ID);
            }
        }
       
        IRichBolt lastBolt = _components.get(_components.size()-1).bolt;
        OutputFieldsGetter getter = new OutputFieldsGetter();
        lastBolt.declareOutputFields(getter);
        Map<String, StreamInfo> streams = getter.getFieldsDeclaration();
        if(streams.size()!=1) {
            throw new RuntimeException("Must declare exactly one stream from last bolt in LinearDRPCTopology");
        }
        String outputStream = streams.keySet().iterator().next();
        List<String> fields = streams.get(outputStream).get_output_fields();
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        }
        return new Fields(toKeep);
    }
   
    public static Fields getSingleOutputStreamFields(IComponent component) {
        OutputFieldsGetter getter = new OutputFieldsGetter();
        component.declareOutputFields(getter);
        Map<String, StreamInfo> declaration = getter.getFieldsDeclaration();
        if(declaration.size()!=1) {
            throw new RuntimeException("Trident only supports components that emit a single stream");
        }
        StreamInfo si = declaration.values().iterator().next();
        if(si.is_direct()) {
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        }
        return new Fields(toKeep);
    }
   
    public static Fields getSingleOutputStreamFields(IComponent component) {
        OutputFieldsGetter getter = new OutputFieldsGetter();
        component.declareOutputFields(getter);
        Map<String, StreamInfo> declaration = getter.getFieldsDeclaration();
        if(declaration.size()!=1) {
            throw new RuntimeException("Trident only supports components that emit a single stream");
        }
        StreamInfo si = declaration.values().iterator().next();
        if(si.is_direct()) {
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                declarer.directGrouping(boltId(i-1), Constants.COORDINATED_STREAM_ID);
            }
        }
       
        IRichBolt lastBolt = _components.get(_components.size()-1).bolt;
        OutputFieldsGetter getter = new OutputFieldsGetter();
        lastBolt.declareOutputFields(getter);
        Map<String, StreamInfo> streams = getter.getFieldsDeclaration();
        if(streams.size()!=1) {
            throw new RuntimeException("Must declare exactly one stream from last bolt in LinearDRPCTopology");
        }
        String outputStream = streams.keySet().iterator().next();
        List<String> fields = streams.get(outputStream).get_output_fields();
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        }
        return new Fields(toKeep);
    }
   
    public static Fields getSingleOutputStreamFields(IComponent component) {
        OutputFieldsGetter getter = new OutputFieldsGetter();
        component.declareOutputFields(getter);
        Map<String, StreamInfo> declaration = getter.getFieldsDeclaration();
        if(declaration.size()!=1) {
            throw new RuntimeException("Trident only supports components that emit a single stream");
        }
        StreamInfo si = declaration.values().iterator().next();
        if(si.is_direct()) {
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        return null;
    }

    @Override
    public Fields getOutputFields() {
        OutputFieldsGetter fieldGetter = new OutputFieldsGetter();
        tupleProducer.declareOutputFields(fieldGetter);
        StreamInfo streamInfo = fieldGetter.getFieldsDeclaration().get(Utils.DEFAULT_STREAM_ID);
        if (streamInfo == null) {
            throw new IllegalArgumentException("Jms Tuple producer has not declared output fields for the default stream");
        }
       
        return new Fields(streamInfo.get_output_fields());
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        }
        return new Fields(toKeep);
    }
   
    public static Fields getSingleOutputStreamFields(IComponent component) {
        OutputFieldsGetter getter = new OutputFieldsGetter();
        component.declareOutputFields(getter);
        Map<String, StreamInfo> declaration = getter.getFieldsDeclaration();
        if(declaration.size()!=1) {
            throw new RuntimeException("Trident only supports components that emit a single stream");
        }
        StreamInfo si = declaration.values().iterator().next();
        if(si.is_direct()) {
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            Constants.COORDINATED_STREAM_ID);
      }
    }

    IRichBolt lastBolt = _components.get(_components.size() - 1).bolt;
    OutputFieldsGetter getter = new OutputFieldsGetter();
    lastBolt.declareOutputFields(getter);
    Map<String, StreamInfo> streams = getter.getFieldsDeclaration();
    if (streams.size() != 1) {
      throw new RuntimeException(
          "Must declare exactly one stream from last bolt in LinearDRPCTopology");
    }
    String outputStream = streams.keySet().iterator().next();
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Related Classes of backtype.storm.topology.OutputFieldsGetter

  • backtype.storm.contrib.jms.trident.TridentJmsSpout
  • backtype.storm.drpc.LinearDRPCTopologyBuilder
  • backtype.storm.generated.StreamInfo
  • storm.trident.util.TridentUtils
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