org.apache.flink.graph.Vertex.getId()方法的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
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本文整理了Java中org.apache.flink.graph.Vertex.getId()方法的一些代码示例，展示了Vertex.getId()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。Vertex.getId()方法的具体详情如下：
包路径：org.apache.flink.graph.Vertex
类名称：Vertex
方法名：getId

Vertex.getId介绍

暂无

代码示例

代码示例来源：origin: apache/flink

public Tuple2<K, Either<NullValue, Message>> map(Vertex<K, VV> vertex) {
      outTuple.f0 = vertex.getId();
      return outTuple;
    }
}

代码示例来源：origin: apache/flink

public Projection(
    Vertex<KC, VVC> connectingVertex,
    VV sourceVertexValue, VV targetVertexValue,
    EV sourceEdgeValue, EV targetEdgeValue) {
  this.f0 = connectingVertex.getId();
  this.f1 = connectingVertex.getValue();
  this.f2 = sourceVertexValue;
  this.f3 = targetVertexValue;
  this.f4 = sourceEdgeValue;
  this.f5 = targetEdgeValue;
}

代码示例来源：origin: apache/flink

@Override
  public void coGroup(Iterable<Edge<K, EV>> edges,
            Iterable<Vertex<K, VV>> state,
            Collector<Tuple2<K, Message>> out) throws Exception {
    final Iterator<Vertex<K, VV>> stateIter = state.iterator();
    if (stateIter.hasNext()) {
      Vertex<K, VV> newVertexState = stateIter.next();
      scatterFunction.set(edges.iterator(), out, newVertexState.getId());
      scatterFunction.sendMessages(newVertexState);
    }
  }
}

代码示例来源：origin: apache/flink

public Vertex<K, VV> map(Vertex<K, Tuple3<VV, LongValue, LongValue>> vertex) {
    return new Vertex<>(vertex.getId(), vertex.getValue().f0);
  }
});

代码示例来源：origin: apache/flink

@Override
  public void coGroup(Iterable<Edge<K, EV>> edges, Iterable<Vertex<K, Tuple3<VV, LongValue, LongValue>>> state,
            Collector<Tuple2<K, Message>> out) throws Exception {
    final Iterator<Vertex<K, Tuple3<VV, LongValue, LongValue>>> stateIter = state.iterator();
    if (stateIter.hasNext()) {
      Vertex<K, Tuple3<VV, LongValue, LongValue>> vertexWithDegrees = stateIter.next();
      nextVertex.f0 = vertexWithDegrees.f0;
      nextVertex.f1 = vertexWithDegrees.f1.f0;
      scatterFunction.setInDegree(vertexWithDegrees.f1.f1.getValue());
      scatterFunction.setOutDegree(vertexWithDegrees.f1.f2.getValue());
      scatterFunction.set(edges.iterator(), out, vertexWithDegrees.getId());
      scatterFunction.sendMessages(nextVertex);
    }
  }
}

代码示例来源：origin: apache/flink

@Override
  public Tuple3<Long, Long, Double> map(Triplet<Long, Point, Double> triplet)
      throws Exception {
    Vertex<Long, Point> srcVertex = triplet.getSrcVertex();
    Vertex<Long, Point> trgVertex = triplet.getTrgVertex();
    return new Tuple3<>(srcVertex.getId(), trgVertex.getId(),
      srcVertex.getValue().euclideanDistance(trgVertex.getValue()));
  }
});

代码示例来源：origin: apache/flink

public void compute(Vertex<Long, Double> vertex, MessageIterator<Double> messages) {
    double minDistance = (vertex.getId().equals(srcId)) ? 0d : Double.POSITIVE_INFINITY;
    for (Double msg : messages) {
      minDistance = Math.min(minDistance, msg);
    }
    if (minDistance < vertex.getValue()) {
      setNewVertexValue(minDistance);
      for (Edge<Long, Double> e: getEdges()) {
        sendMessageTo(e.getTarget(), minDistance + e.getValue());
      }
    }
  }
}

代码示例来源：origin: apache/flink

public Vertex<K, Tuple2<Long, Double>> map(Vertex<K, Long> vertex) {
    return new Vertex<>(vertex.getId(), new Tuple2<>(vertex.getValue(), 1.0));
  }
}

代码示例来源：origin: apache/flink

@Override
public void reduce(Iterable<Vertex<K, VV>> values, Collector<VertexGroupItem<K, VV>> out) throws Exception {
  K vertexGroupRepresentativeID = null;
  long vertexGroupCount = 0L;
  VV vertexGroupValue = null;
  boolean isFirstElement = true;
  for (Vertex<K, VV> vertex : values) {
    if (isFirstElement) {
      // take final group representative vertex id from first tuple
      vertexGroupRepresentativeID = vertex.getId();
      vertexGroupValue = vertex.getValue();
      isFirstElement = false;
    }
    // no need to set group value for those tuples
    reuseVertexGroupItem.setVertexId(vertex.getId());
    reuseVertexGroupItem.setGroupRepresentativeId(vertexGroupRepresentativeID);
    out.collect(reuseVertexGroupItem);
    vertexGroupCount++;
  }
  createGroupRepresentativeTuple(vertexGroupRepresentativeID, vertexGroupValue, vertexGroupCount);
  out.collect(reuseVertexGroupItem);
  reuseVertexGroupItem.reset();
}

代码示例来源：origin: apache/flink

@Override
  public void coGroup(
      Iterable<Tuple2<Vertex<K, VV>, Either<NullValue, Message>>> messages,
      Iterable<Edge<K, EV>> edgesIterator,
      Collector<Either<Vertex<K, VV>, Tuple2<K, Message>>> out) throws Exception {
    final Iterator<Tuple2<Vertex<K, VV>, Either<NullValue, Message>>> vertexIter =
        messages.iterator();
    if (vertexIter.hasNext()) {
      final Tuple2<Vertex<K, VV>, Either<NullValue, Message>> first = vertexIter.next();
      final Vertex<K, VV> vertexState = first.f0;
      final MessageIterator<Message> messageIter = new MessageIterator<>();
      if (getIterationRuntimeContext().getSuperstepNumber() == 1) {
        // there are no messages during the 1st superstep
      }
      else {
        messageIter.setFirst(first.f1.right());
        @SuppressWarnings("unchecked")
        Iterator<Tuple2<?, Either<NullValue, Message>>> downcastIter =
          (Iterator<Tuple2<?, Either<NullValue, Message>>>) (Iterator<?>) vertexIter;
        messageIter.setSource(downcastIter);
      }
      computeFunction.set(vertexState.getId(), edgesIterator.iterator(), out);
      computeFunction.compute(vertexState, messageIter);
    }
  }
}

代码示例来源：origin: apache/flink

public void iterateEdges(Vertex<String, NullValue> vertex,
      Iterable<Edge<String, Integer>> edges, Collector<Tuple2<String, String>> out) throws Exception {
    int maxPlaycount = 0;
    String topSong = "";
    for (Edge<String, Integer> edge : edges) {
      if (edge.getValue() > maxPlaycount) {
        maxPlaycount = edge.getValue();
        topSong = edge.getTarget();
      }
    }
    out.collect(new Tuple2<>(vertex.getId(), topSong));
  }
}

代码示例来源：origin: apache/flink

@Override
  public void join(Vertex<K, VV> vertex, Tuple3<K, LongValue, LongValue> degrees,
          Collector<Vertex<K, Tuple3<VV, LongValue, LongValue>>> out) throws Exception {
    out.collect(new Vertex<>(vertex.getId(),
          new Tuple3<>(vertex.getValue(), degrees.f1, degrees.f2)));
  }
}).withForwardedFieldsFirst("f0");

代码示例来源：origin: apache/flink

@Override
  public void sendMessages(Vertex<Long, Double> vertex) throws Exception {
    if (getSuperstepNumber() == 1) {
      if (vertex.getId().equals(edgeToBeRemoved.getSource())) {
        // activate the edge target
        sendMessageTo(edgeToBeRemoved.getSource(), Double.MAX_VALUE);
      }
    }
    if (getSuperstepNumber() > 1) {
      // invalidate all edges
      for (Edge<Long, Double> edge : getEdges()) {
        sendMessageTo(edge.getSource(), Double.MAX_VALUE);
      }
    }
  }
}

代码示例来源：origin: com.alibaba.blink/flink-gelly

public Tuple2<K, Either<NullValue, Message>> map(Vertex<K, VV> vertex) {
      outTuple.f0 = vertex.getId();
      return outTuple;
    }
}

代码示例来源：origin: vasia/gelly-streaming

@Override
  public boolean filter(Vertex<K, NullValue> vertex) throws Exception {
    if (!keys.contains(vertex.getId())) {
      keys.add(vertex.getId());
      return true;
    }
    return false;
  }
}

代码示例来源：origin: org.apache.flink/flink-gelly_2.11

public Projection(
    Vertex<KC, VVC> connectingVertex,
    VV sourceVertexValue, VV targetVertexValue,
    EV sourceEdgeValue, EV targetEdgeValue) {
  this.f0 = connectingVertex.getId();
  this.f1 = connectingVertex.getValue();
  this.f2 = sourceVertexValue;
  this.f3 = targetVertexValue;
  this.f4 = sourceEdgeValue;
  this.f5 = targetEdgeValue;
}

代码示例来源：origin: vasia/gelly-streaming

@Override
  public boolean filter(Vertex<Long, NullValue> vertex) throws Exception {
    return vertex.getId() > 1;
  }
}

代码示例来源：origin: vasia/gelly-streaming

@Override
  public Vertex<K, Long> map(Vertex<K, Long> degree) throws Exception {
    K key = degree.getId();
    if (!localDegrees.containsKey(key)) {
      localDegrees.put(key, 0L);
    }
    localDegrees.put(key, localDegrees.get(key) + degree.getValue());
    return new Vertex<>(key, localDegrees.get(key));
  }
}

代码示例来源：origin: org.apache.flink/flink-gelly_2.10

@Override
  public void coGroup(Iterable<Edge<K, EV>> edges,
            Iterable<Vertex<K, VV>> state,
            Collector<Tuple2<K, Message>> out) throws Exception {
    final Iterator<Vertex<K, VV>> stateIter = state.iterator();
    if (stateIter.hasNext()) {
      Vertex<K, VV> newVertexState = stateIter.next();
      scatterFunction.set(edges.iterator(), out, newVertexState.getId());
      scatterFunction.sendMessages(newVertexState);
    }
  }
}

代码示例来源：origin: com.alibaba.blink/flink-gelly

@Override
  public void join(Vertex<K, VV> vertex, Tuple3<K, LongValue, LongValue> degrees,
          Collector<Vertex<K, Tuple3<VV, LongValue, LongValue>>> out) throws Exception {
    out.collect(new Vertex<>(vertex.getId(),
          new Tuple3<>(vertex.getValue(), degrees.f1, degrees.f2)));
  }
}).withForwardedFieldsFirst("f0");

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