Java Code Examples for org.apache.flink.api.java.operators.TwoInputUdfOperator#getInput1()

The following examples show how to use org.apache.flink.api.java.operators.TwoInputUdfOperator#getInput1() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: SpargelTranslationTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslationPlainEdges() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcMessaging = env.fromElements(1L);
	DataSet<Long> bcUpdate = env.fromElements(1L);

	DataSet<Vertex<String, Double>> result;

	// ------------ construct the test program ------------------

	DataSet<Tuple2<String, Double>> initialVertices = env.fromElements(new Tuple2<>("abc", 3.44));

	DataSet<Tuple2<String, String>> edges = env.fromElements(new Tuple2<>("a", "c"));

	Graph<String, Double, NullValue> graph = Graph.fromTupleDataSet(initialVertices,
		edges.map(new MapFunction<Tuple2<String, String>, Tuple3<String, String, NullValue>>() {

			public Tuple3<String, String, NullValue> map(
				Tuple2<String, String> edge) {
				return new Tuple3<>(edge.f0, edge.f1, NullValue.getInstance());
			}
		}), env);

	ScatterGatherConfiguration parameters = new ScatterGatherConfiguration();

	parameters.addBroadcastSetForScatterFunction(BC_SET_MESSAGES_NAME, bcMessaging);
	parameters.addBroadcastSetForGatherFunction(BC_SET_UPDATES_NAME, bcUpdate);
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());

	result = graph.runScatterGatherIteration(new MessageFunctionNoEdgeValue(), new UpdateFunction(),
		NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	TwoInputUdfOperator<?, ?, ?, ?> edgesJoin = (TwoInputUdfOperator<?, ?, ?, ?>) solutionSetJoin.getInput1();

	// validate that the broadcast sets are forwarded
	assertEquals(bcUpdate, solutionSetJoin.getBroadcastSets().get(BC_SET_UPDATES_NAME));
	assertEquals(bcMessaging, edgesJoin.getBroadcastSets().get(BC_SET_MESSAGES_NAME));
}
Example 2
Source File: SpargelTranslationTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslationPlainEdgesWithForkedBroadcastVariable() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcVar = env.fromElements(1L);

	DataSet<Vertex<String, Double>> result;

	// ------------ construct the test program ------------------

	DataSet<Tuple2<String, Double>> initialVertices = env.fromElements(new Tuple2<>("abc", 3.44));

	DataSet<Tuple2<String, String>> edges = env.fromElements(new Tuple2<>("a", "c"));

	Graph<String, Double, NullValue> graph = Graph.fromTupleDataSet(initialVertices,
		edges.map(new MapFunction<Tuple2<String, String>, Tuple3<String, String, NullValue>>() {

			public Tuple3<String, String, NullValue> map(
				Tuple2<String, String> edge) {
				return new Tuple3<>(edge.f0, edge.f1, NullValue.getInstance());
			}
		}), env);

	ScatterGatherConfiguration parameters = new ScatterGatherConfiguration();

	parameters.addBroadcastSetForScatterFunction(BC_SET_MESSAGES_NAME, bcVar);
	parameters.addBroadcastSetForGatherFunction(BC_SET_UPDATES_NAME, bcVar);
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());

	result = graph.runScatterGatherIteration(new MessageFunctionNoEdgeValue(), new UpdateFunction(),
		NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	TwoInputUdfOperator<?, ?, ?, ?> edgesJoin = (TwoInputUdfOperator<?, ?, ?, ?>) solutionSetJoin.getInput1();

	// validate that the broadcast sets are forwarded
	assertEquals(bcVar, solutionSetJoin.getBroadcastSets().get(BC_SET_UPDATES_NAME));
	assertEquals(bcVar, edgesJoin.getBroadcastSets().get(BC_SET_MESSAGES_NAME));
}
Example 3
Source File: GSATranslationTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslation() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcGather = env.fromElements(1L);
	DataSet<Long> bcSum = env.fromElements(1L);
	DataSet<Long> bcApply = env.fromElements(1L);

	DataSet<Vertex<Long, Long>> result;

	// ------------ construct the test program ------------------

	DataSet<Edge<Long, NullValue>> edges = env.fromElements(new Tuple3<>(
		1L, 2L, NullValue.getInstance())).map(new Tuple3ToEdgeMap<>());

	Graph<Long, Long, NullValue> graph = Graph.fromDataSet(edges, new InitVertices(), env);

	GSAConfiguration parameters = new GSAConfiguration();

	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.addBroadcastSetForGatherFunction(BC_SET_GATHER_NAME, bcGather);
	parameters.addBroadcastSetForSumFunction(BC_SET_SUM_NAME, bcSum);
	parameters.addBroadcastSetForApplyFunction(BC_SET_APLLY_NAME, bcApply);

	result = graph.runGatherSumApplyIteration(
		new GatherNeighborIds(), new SelectMinId(),
		new UpdateComponentId(), NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	SingleInputUdfOperator<?, ?, ?> sumReduce = (SingleInputUdfOperator<?, ?, ?>) solutionSetJoin.getInput1();
	SingleInputUdfOperator<?, ?, ?> gatherMap = (SingleInputUdfOperator<?, ?, ?>) sumReduce.getInput();

	// validate that the broadcast sets are forwarded
	assertEquals(bcGather, gatherMap.getBroadcastSets().get(BC_SET_GATHER_NAME));
	assertEquals(bcSum, sumReduce.getBroadcastSets().get(BC_SET_SUM_NAME));
	assertEquals(bcApply, solutionSetJoin.getBroadcastSets().get(BC_SET_APLLY_NAME));
}
Example 4
Source File: SpargelTranslationTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslationPlainEdges() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcMessaging = env.fromElements(1L);
	DataSet<Long> bcUpdate = env.fromElements(1L);

	DataSet<Vertex<String, Double>> result;

	// ------------ construct the test program ------------------

	DataSet<Tuple2<String, Double>> initialVertices = env.fromElements(new Tuple2<>("abc", 3.44));

	DataSet<Tuple2<String, String>> edges = env.fromElements(new Tuple2<>("a", "c"));

	Graph<String, Double, NullValue> graph = Graph.fromTupleDataSet(initialVertices,
		edges.map(new MapFunction<Tuple2<String, String>, Tuple3<String, String, NullValue>>() {

			public Tuple3<String, String, NullValue> map(
				Tuple2<String, String> edge) {
				return new Tuple3<>(edge.f0, edge.f1, NullValue.getInstance());
			}
		}), env);

	ScatterGatherConfiguration parameters = new ScatterGatherConfiguration();

	parameters.addBroadcastSetForScatterFunction(BC_SET_MESSAGES_NAME, bcMessaging);
	parameters.addBroadcastSetForGatherFunction(BC_SET_UPDATES_NAME, bcUpdate);
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());

	result = graph.runScatterGatherIteration(new MessageFunctionNoEdgeValue(), new UpdateFunction(),
		NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	TwoInputUdfOperator<?, ?, ?, ?> edgesJoin = (TwoInputUdfOperator<?, ?, ?, ?>) solutionSetJoin.getInput1();

	// validate that the broadcast sets are forwarded
	assertEquals(bcUpdate, solutionSetJoin.getBroadcastSets().get(BC_SET_UPDATES_NAME));
	assertEquals(bcMessaging, edgesJoin.getBroadcastSets().get(BC_SET_MESSAGES_NAME));
}
Example 5
Source File: SpargelTranslationTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslationPlainEdgesWithForkedBroadcastVariable() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcVar = env.fromElements(1L);

	DataSet<Vertex<String, Double>> result;

	// ------------ construct the test program ------------------

	DataSet<Tuple2<String, Double>> initialVertices = env.fromElements(new Tuple2<>("abc", 3.44));

	DataSet<Tuple2<String, String>> edges = env.fromElements(new Tuple2<>("a", "c"));

	Graph<String, Double, NullValue> graph = Graph.fromTupleDataSet(initialVertices,
		edges.map(new MapFunction<Tuple2<String, String>, Tuple3<String, String, NullValue>>() {

			public Tuple3<String, String, NullValue> map(
				Tuple2<String, String> edge) {
				return new Tuple3<>(edge.f0, edge.f1, NullValue.getInstance());
			}
		}), env);

	ScatterGatherConfiguration parameters = new ScatterGatherConfiguration();

	parameters.addBroadcastSetForScatterFunction(BC_SET_MESSAGES_NAME, bcVar);
	parameters.addBroadcastSetForGatherFunction(BC_SET_UPDATES_NAME, bcVar);
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());

	result = graph.runScatterGatherIteration(new MessageFunctionNoEdgeValue(), new UpdateFunction(),
		NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	TwoInputUdfOperator<?, ?, ?, ?> edgesJoin = (TwoInputUdfOperator<?, ?, ?, ?>) solutionSetJoin.getInput1();

	// validate that the broadcast sets are forwarded
	assertEquals(bcVar, solutionSetJoin.getBroadcastSets().get(BC_SET_UPDATES_NAME));
	assertEquals(bcVar, edgesJoin.getBroadcastSets().get(BC_SET_MESSAGES_NAME));
}
Example 6
Source File: GSATranslationTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslation() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcGather = env.fromElements(1L);
	DataSet<Long> bcSum = env.fromElements(1L);
	DataSet<Long> bcApply = env.fromElements(1L);

	DataSet<Vertex<Long, Long>> result;

	// ------------ construct the test program ------------------

	DataSet<Edge<Long, NullValue>> edges = env.fromElements(new Tuple3<>(
		1L, 2L, NullValue.getInstance())).map(new Tuple3ToEdgeMap<>());

	Graph<Long, Long, NullValue> graph = Graph.fromDataSet(edges, new InitVertices(), env);

	GSAConfiguration parameters = new GSAConfiguration();

	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.addBroadcastSetForGatherFunction(BC_SET_GATHER_NAME, bcGather);
	parameters.addBroadcastSetForSumFunction(BC_SET_SUM_NAME, bcSum);
	parameters.addBroadcastSetForApplyFunction(BC_SET_APLLY_NAME, bcApply);

	result = graph.runGatherSumApplyIteration(
		new GatherNeighborIds(), new SelectMinId(),
		new UpdateComponentId(), NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	SingleInputUdfOperator<?, ?, ?> sumReduce = (SingleInputUdfOperator<?, ?, ?>) solutionSetJoin.getInput1();
	SingleInputUdfOperator<?, ?, ?> gatherMap = (SingleInputUdfOperator<?, ?, ?>) sumReduce.getInput();

	// validate that the broadcast sets are forwarded
	assertEquals(bcGather, gatherMap.getBroadcastSets().get(BC_SET_GATHER_NAME));
	assertEquals(bcSum, sumReduce.getBroadcastSets().get(BC_SET_SUM_NAME));
	assertEquals(bcApply, solutionSetJoin.getBroadcastSets().get(BC_SET_APLLY_NAME));
}
Example 7
Source File: SpargelTranslationTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslationPlainEdges() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcMessaging = env.fromElements(1L);
	DataSet<Long> bcUpdate = env.fromElements(1L);

	DataSet<Vertex<String, Double>> result;

	// ------------ construct the test program ------------------

	DataSet<Tuple2<String, Double>> initialVertices = env.fromElements(new Tuple2<>("abc", 3.44));

	DataSet<Tuple2<String, String>> edges = env.fromElements(new Tuple2<>("a", "c"));

	Graph<String, Double, NullValue> graph = Graph.fromTupleDataSet(initialVertices,
		edges.map(new MapFunction<Tuple2<String, String>, Tuple3<String, String, NullValue>>() {

			public Tuple3<String, String, NullValue> map(
				Tuple2<String, String> edge) {
				return new Tuple3<>(edge.f0, edge.f1, NullValue.getInstance());
			}
		}), env);

	ScatterGatherConfiguration parameters = new ScatterGatherConfiguration();

	parameters.addBroadcastSetForScatterFunction(BC_SET_MESSAGES_NAME, bcMessaging);
	parameters.addBroadcastSetForGatherFunction(BC_SET_UPDATES_NAME, bcUpdate);
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());

	result = graph.runScatterGatherIteration(new MessageFunctionNoEdgeValue(), new UpdateFunction(),
		NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	TwoInputUdfOperator<?, ?, ?, ?> edgesJoin = (TwoInputUdfOperator<?, ?, ?, ?>) solutionSetJoin.getInput1();

	// validate that the broadcast sets are forwarded
	assertEquals(bcUpdate, solutionSetJoin.getBroadcastSets().get(BC_SET_UPDATES_NAME));
	assertEquals(bcMessaging, edgesJoin.getBroadcastSets().get(BC_SET_MESSAGES_NAME));
}
Example 8
Source File: SpargelTranslationTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslationPlainEdgesWithForkedBroadcastVariable() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcVar = env.fromElements(1L);

	DataSet<Vertex<String, Double>> result;

	// ------------ construct the test program ------------------

	DataSet<Tuple2<String, Double>> initialVertices = env.fromElements(new Tuple2<>("abc", 3.44));

	DataSet<Tuple2<String, String>> edges = env.fromElements(new Tuple2<>("a", "c"));

	Graph<String, Double, NullValue> graph = Graph.fromTupleDataSet(initialVertices,
		edges.map(new MapFunction<Tuple2<String, String>, Tuple3<String, String, NullValue>>() {

			public Tuple3<String, String, NullValue> map(
				Tuple2<String, String> edge) {
				return new Tuple3<>(edge.f0, edge.f1, NullValue.getInstance());
			}
		}), env);

	ScatterGatherConfiguration parameters = new ScatterGatherConfiguration();

	parameters.addBroadcastSetForScatterFunction(BC_SET_MESSAGES_NAME, bcVar);
	parameters.addBroadcastSetForGatherFunction(BC_SET_UPDATES_NAME, bcVar);
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());

	result = graph.runScatterGatherIteration(new MessageFunctionNoEdgeValue(), new UpdateFunction(),
		NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	TwoInputUdfOperator<?, ?, ?, ?> edgesJoin = (TwoInputUdfOperator<?, ?, ?, ?>) solutionSetJoin.getInput1();

	// validate that the broadcast sets are forwarded
	assertEquals(bcVar, solutionSetJoin.getBroadcastSets().get(BC_SET_UPDATES_NAME));
	assertEquals(bcVar, edgesJoin.getBroadcastSets().get(BC_SET_MESSAGES_NAME));
}
Example 9
Source File: GSATranslationTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testTranslation() {
	ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();

	DataSet<Long> bcGather = env.fromElements(1L);
	DataSet<Long> bcSum = env.fromElements(1L);
	DataSet<Long> bcApply = env.fromElements(1L);

	DataSet<Vertex<Long, Long>> result;

	// ------------ construct the test program ------------------

	DataSet<Edge<Long, NullValue>> edges = env.fromElements(new Tuple3<>(
		1L, 2L, NullValue.getInstance())).map(new Tuple3ToEdgeMap<>());

	Graph<Long, Long, NullValue> graph = Graph.fromDataSet(edges, new InitVertices(), env);

	GSAConfiguration parameters = new GSAConfiguration();

	parameters.registerAggregator(AGGREGATOR_NAME, new LongSumAggregator());
	parameters.setName(ITERATION_NAME);
	parameters.setParallelism(ITERATION_parallelism);
	parameters.addBroadcastSetForGatherFunction(BC_SET_GATHER_NAME, bcGather);
	parameters.addBroadcastSetForSumFunction(BC_SET_SUM_NAME, bcSum);
	parameters.addBroadcastSetForApplyFunction(BC_SET_APLLY_NAME, bcApply);

	result = graph.runGatherSumApplyIteration(
		new GatherNeighborIds(), new SelectMinId(),
		new UpdateComponentId(), NUM_ITERATIONS, parameters).getVertices();

	result.output(new DiscardingOutputFormat<>());

	// ------------- validate the java program ----------------

	assertTrue(result instanceof DeltaIterationResultSet);

	DeltaIterationResultSet<?, ?> resultSet = (DeltaIterationResultSet<?, ?>) result;
	DeltaIteration<?, ?> iteration = resultSet.getIterationHead();

	// check the basic iteration properties
	assertEquals(NUM_ITERATIONS, resultSet.getMaxIterations());
	assertArrayEquals(new int[]{0}, resultSet.getKeyPositions());
	assertEquals(ITERATION_parallelism, iteration.getParallelism());
	assertEquals(ITERATION_NAME, iteration.getName());

	assertEquals(AGGREGATOR_NAME, iteration.getAggregators().getAllRegisteredAggregators().iterator().next().getName());

	// validate that the semantic properties are set as they should
	TwoInputUdfOperator<?, ?, ?, ?> solutionSetJoin = (TwoInputUdfOperator<?, ?, ?, ?>) resultSet.getNextWorkset();
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(0, 0).contains(0));
	assertTrue(solutionSetJoin.getSemanticProperties().getForwardingTargetFields(1, 0).contains(0));

	SingleInputUdfOperator<?, ?, ?> sumReduce = (SingleInputUdfOperator<?, ?, ?>) solutionSetJoin.getInput1();
	SingleInputUdfOperator<?, ?, ?> gatherMap = (SingleInputUdfOperator<?, ?, ?>) sumReduce.getInput();

	// validate that the broadcast sets are forwarded
	assertEquals(bcGather, gatherMap.getBroadcastSets().get(BC_SET_GATHER_NAME));
	assertEquals(bcSum, sumReduce.getBroadcastSets().get(BC_SET_SUM_NAME));
	assertEquals(bcApply, solutionSetJoin.getBroadcastSets().get(BC_SET_APLLY_NAME));
}