示例#1
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 private static boolean isCustomPartitioned(List<StreamEdge> edges) {
   boolean result = true;
   for (StreamEdge edge : edges) {
     if (!(edge.getPartitioner() instanceof CustomPartitionerWrapper)) {
       result = false;
     }
   }
   return result;
 }
示例#2
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 private static boolean isCustomPartitioned(StreamEdge edge) {
   return edge.getPartitioner() instanceof CustomPartitionerWrapper;
 }
示例#3
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 private static boolean isPartitioned(StreamEdge edge) {
   return edge.getPartitioner() instanceof HashPartitioner;
 }
示例#4
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  @Test
  public void operatorTest() {
    StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

    DataStreamSource<Long> src = env.generateSequence(0, 0);

    MapFunction<Long, Integer> mapFunction =
        new MapFunction<Long, Integer>() {
          @Override
          public Integer map(Long value) throws Exception {
            return null;
          }
        };
    DataStream<Integer> map = src.map(mapFunction);
    map.addSink(new NoOpSink<Integer>());
    assertEquals(mapFunction, getFunctionForDataStream(map));

    FlatMapFunction<Long, Integer> flatMapFunction =
        new FlatMapFunction<Long, Integer>() {
          private static final long serialVersionUID = 1L;

          @Override
          public void flatMap(Long value, Collector<Integer> out) throws Exception {}
        };
    DataStream<Integer> flatMap = src.flatMap(flatMapFunction);
    flatMap.addSink(new NoOpSink<Integer>());
    assertEquals(flatMapFunction, getFunctionForDataStream(flatMap));

    FilterFunction<Integer> filterFunction =
        new FilterFunction<Integer>() {
          @Override
          public boolean filter(Integer value) throws Exception {
            return false;
          }
        };

    DataStream<Integer> unionFilter = map.union(flatMap).filter(filterFunction);

    unionFilter.addSink(new NoOpSink<Integer>());

    assertEquals(filterFunction, getFunctionForDataStream(unionFilter));

    try {
      env.getStreamGraph().getStreamEdge(map.getId(), unionFilter.getId());
    } catch (RuntimeException e) {
      fail(e.getMessage());
    }

    try {
      env.getStreamGraph().getStreamEdge(flatMap.getId(), unionFilter.getId());
    } catch (RuntimeException e) {
      fail(e.getMessage());
    }

    OutputSelector<Integer> outputSelector =
        new OutputSelector<Integer>() {
          @Override
          public Iterable<String> select(Integer value) {
            return null;
          }
        };

    SplitStream<Integer> split = unionFilter.split(outputSelector);
    split.select("dummy").addSink(new NoOpSink<Integer>());
    List<OutputSelector<?>> outputSelectors =
        env.getStreamGraph().getStreamNode(unionFilter.getId()).getOutputSelectors();
    assertEquals(1, outputSelectors.size());
    assertEquals(outputSelector, outputSelectors.get(0));

    DataStream<Integer> select = split.select("a");
    DataStreamSink<Integer> sink = select.print();

    StreamEdge splitEdge =
        env.getStreamGraph().getStreamEdge(unionFilter.getId(), sink.getTransformation().getId());
    assertEquals("a", splitEdge.getSelectedNames().get(0));

    ConnectedStreams<Integer, Integer> connect = map.connect(flatMap);
    CoMapFunction<Integer, Integer, String> coMapper =
        new CoMapFunction<Integer, Integer, String>() {
          private static final long serialVersionUID = 1L;

          @Override
          public String map1(Integer value) {
            return null;
          }

          @Override
          public String map2(Integer value) {
            return null;
          }
        };
    DataStream<String> coMap = connect.map(coMapper);
    coMap.addSink(new NoOpSink<String>());
    assertEquals(coMapper, getFunctionForDataStream(coMap));

    try {
      env.getStreamGraph().getStreamEdge(map.getId(), coMap.getId());
    } catch (RuntimeException e) {
      fail(e.getMessage());
    }

    try {
      env.getStreamGraph().getStreamEdge(flatMap.getId(), coMap.getId());
    } catch (RuntimeException e) {
      fail(e.getMessage());
    }
  }
示例#5
0
  /**
   * Tests union functionality. This ensures that self-unions and unions of streams with differing
   * parallelism work.
   *
   * @throws Exception
   */
  @Test
  public void testUnion() throws Exception {
    StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
    env.setParallelism(4);

    DataStream<Long> input1 =
        env.generateSequence(0, 0)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                });

    DataStream<Long> selfUnion =
        input1
            .union(input1)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                });

    DataStream<Long> input6 =
        env.generateSequence(0, 0)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                });

    DataStream<Long> selfUnionDifferentPartition =
        input6
            .broadcast()
            .union(input6)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                });

    DataStream<Long> input2 =
        env.generateSequence(0, 0)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                })
            .setParallelism(4);

    DataStream<Long> input3 =
        env.generateSequence(0, 0)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                })
            .setParallelism(2);

    DataStream<Long> unionDifferingParallelism =
        input2
            .union(input3)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                })
            .setParallelism(4);

    DataStream<Long> input4 =
        env.generateSequence(0, 0)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                })
            .setParallelism(2);

    DataStream<Long> input5 =
        env.generateSequence(0, 0)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                })
            .setParallelism(4);

    DataStream<Long> unionDifferingPartitioning =
        input4
            .broadcast()
            .union(input5)
            .map(
                new MapFunction<Long, Long>() {
                  @Override
                  public Long map(Long value) throws Exception {
                    return null;
                  }
                })
            .setParallelism(4);

    StreamGraph streamGraph = env.getStreamGraph();

    // verify self union
    assertTrue(streamGraph.getStreamNode(selfUnion.getId()).getInEdges().size() == 2);
    for (StreamEdge edge : streamGraph.getStreamNode(selfUnion.getId()).getInEdges()) {
      assertTrue(edge.getPartitioner() instanceof ForwardPartitioner);
    }

    // verify self union with differnt partitioners
    assertTrue(
        streamGraph.getStreamNode(selfUnionDifferentPartition.getId()).getInEdges().size() == 2);
    boolean hasForward = false;
    boolean hasBroadcast = false;
    for (StreamEdge edge :
        streamGraph.getStreamNode(selfUnionDifferentPartition.getId()).getInEdges()) {
      if (edge.getPartitioner() instanceof ForwardPartitioner) {
        hasForward = true;
      }
      if (edge.getPartitioner() instanceof BroadcastPartitioner) {
        hasBroadcast = true;
      }
    }
    assertTrue(hasForward && hasBroadcast);

    // verify union of streams with differing parallelism
    assertTrue(
        streamGraph.getStreamNode(unionDifferingParallelism.getId()).getInEdges().size() == 2);
    for (StreamEdge edge :
        streamGraph.getStreamNode(unionDifferingParallelism.getId()).getInEdges()) {
      if (edge.getSourceId() == input2.getId()) {
        assertTrue(edge.getPartitioner() instanceof ForwardPartitioner);
      } else if (edge.getSourceId() == input3.getId()) {
        assertTrue(edge.getPartitioner() instanceof RebalancePartitioner);
      } else {
        fail("Wrong input edge.");
      }
    }

    // verify union of streams with differing partitionings
    assertTrue(
        streamGraph.getStreamNode(unionDifferingPartitioning.getId()).getInEdges().size() == 2);
    for (StreamEdge edge :
        streamGraph.getStreamNode(unionDifferingPartitioning.getId()).getInEdges()) {
      if (edge.getSourceId() == input4.getId()) {
        assertTrue(edge.getPartitioner() instanceof BroadcastPartitioner);
      } else if (edge.getSourceId() == input5.getId()) {
        assertTrue(edge.getPartitioner() instanceof ForwardPartitioner);
      } else {
        fail("Wrong input edge.");
      }
    }
  }