Java Code Examples for org.apache.flink.api.java.tuple.Tuple2#setField()

The following examples show how to use org.apache.flink.api.java.tuple.Tuple2#setField() . 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: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
public void combine(Iterable<Tuple2<Integer, Integer>> values, Collector<Tuple2<Integer, Integer>> out) {
	ArrayList<Tuple2<Integer, Integer>> valueList = new ArrayList<>();
	for (Tuple2<Integer, Integer> next : values) {
		valueList.add(next);
	}

	int count = 0;
	Tuple2<Integer, Integer> rec = new Tuple2<>();
	for (Tuple2<Integer, Integer> tuple : valueList) {
		rec.setField(tuple.f0, 0);
		count += tuple.f1;
	}
	rec.setField(count, 1);
	out.collect(rec);
}
Example 2
Source File: AbstractArrowSourceFunction.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
public void run(SourceContext<OUT> ctx) throws Exception {
	VectorLoader vectorLoader = new VectorLoader(root);
	while (running && !indexesToEmit.isEmpty()) {
		Tuple2<Integer, Integer> indexToEmit = indexesToEmit.peek();
		ArrowRecordBatch arrowRecordBatch = loadBatch(indexToEmit.f0);
		vectorLoader.load(arrowRecordBatch);
		arrowRecordBatch.close();

		ArrowReader<OUT> arrowReader = createArrowReader(root);
		int rowCount = root.getRowCount();
		int nextRowId = indexToEmit.f1;
		while (nextRowId < rowCount) {
			OUT element = arrowReader.read(nextRowId);
			synchronized (ctx.getCheckpointLock()) {
				ctx.collect(element);
				indexToEmit.setField(++nextRowId, 1);
			}
		}

		synchronized (ctx.getCheckpointLock()) {
			indexesToEmit.pop();
		}
	}
}
Example 3
Source File: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Override
public void combine(Iterable<Tuple2<Integer, Integer>> values, Collector<Tuple2<Integer, Integer>> out) {
	ArrayList<Tuple2<Integer, Integer>> valueList = new ArrayList<>();
	for (Tuple2<Integer, Integer> next : values) {
		valueList.add(next);
	}

	int count = 0;
	Tuple2<Integer, Integer> rec = new Tuple2<>();
	for (Tuple2<Integer, Integer> tuple : valueList) {
		rec.setField(tuple.f0, 0);
		count += tuple.f1;
	}
	rec.setField(count, 1);
	out.collect(rec);
}
Example 4
Source File: CombiningUnilateralSortMergerITCase.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@Override
public void combine(Iterable<Tuple2<Integer, Integer>> values, Collector<Tuple2<Integer, Integer>> out) {
	ArrayList<Tuple2<Integer, Integer>> valueList = new ArrayList<>();
	for (Tuple2<Integer, Integer> next : values) {
		valueList.add(next);
	}

	int count = 0;
	Tuple2<Integer, Integer> rec = new Tuple2<>();
	for (Tuple2<Integer, Integer> tuple : valueList) {
		rec.setField(tuple.f0, 0);
		count += tuple.f1;
	}
	rec.setField(count, 1);
	out.collect(rec);
}
Example 5
Source File: MergeIteratorTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
private MutableObjectIterator<Tuple2<Integer, String>> newIterator(final int[] keys, final String[] values) {
	
	return new MutableObjectIterator<Tuple2<Integer, String>>() {
		
		private int key = 0;
		private String value = new String();
		
		private int current = 0;

		@Override
		public Tuple2<Integer, String> next(Tuple2<Integer, String> reuse) {
			if (current < keys.length) {
				key = keys[current];
				value = values[current];
				current++;
				reuse.setField(key, 0);
				reuse.setField(value, 1);
				return reuse;
			}
			else {
				return null;
			}
		}

		@Override
		public Tuple2<Integer, String> next() {
			if (current < keys.length) {
				Tuple2<Integer, String> result = new Tuple2<>(keys[current], values[current]);
				current++;
				return result;
			}
			else {
				return null;
			}
		}
	};
}
Example 6
Source File: MergeIteratorTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private MutableObjectIterator<Tuple2<Integer, String>> newIterator(final int[] keys, final String[] values) {
	
	return new MutableObjectIterator<Tuple2<Integer, String>>() {
		
		private int key = 0;
		private String value = new String();
		
		private int current = 0;

		@Override
		public Tuple2<Integer, String> next(Tuple2<Integer, String> reuse) {
			if (current < keys.length) {
				key = keys[current];
				value = values[current];
				current++;
				reuse.setField(key, 0);
				reuse.setField(value, 1);
				return reuse;
			}
			else {
				return null;
			}
		}

		@Override
		public Tuple2<Integer, String> next() {
			if (current < keys.length) {
				Tuple2<Integer, String> result = new Tuple2<>(keys[current], values[current]);
				current++;
				return result;
			}
			else {
				return null;
			}
		}
	};
}
Example 7
Source File: DependencyConnectedComponentsITCase.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Override
public Tuple2<Long, Long> join(Tuple2<Long, Long> edge,
		Tuple2<Long, Long> vertexWithCompId) throws Exception {

	vertexWithCompId.setField(edge.f1, 0);
	return vertexWithCompId;
}
Example 8
Source File: TestData.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Override
public Tuple2<Integer, Integer> next(Tuple2<Integer, Integer> reuse) {
	if (this.numLeft > 0) {
		this.numLeft--;
		reuse.setField(this.key, 0);
		reuse.setField(this.value, 1);
		return reuse;
	} else {
		return null;
	}
}
Example 9
Source File: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCombineSpilling() throws Exception {
	int noKeys = 100;
	int noKeyCnt = 10000;

	TestData.MockTuple2Reader<Tuple2<Integer, Integer>> reader = TestData.getIntIntTupleReader();

	LOG.debug("initializing sortmerger");
	
	TestCountCombiner comb = new TestCountCombiner();
	
	Sorter<Tuple2<Integer, Integer>> merger = new CombiningUnilateralSortMerger<>(comb,
			this.memoryManager, this.ioManager, reader, this.parentTask, this.serializerFactory2, this.comparator2,
			0.01, 64, 0.005f, true /* use large record handler */, true);

	final Tuple2<Integer, Integer> rec = new Tuple2<>();
	rec.setField(1, 1);
	
	for (int i = 0; i < noKeyCnt; i++) {
		for (int j = 0; j < noKeys; j++) {
			rec.setField(j, 0);
			reader.emit(rec);
		}
	}
	reader.close();
	
	MutableObjectIterator<Tuple2<Integer, Integer>> iterator = merger.getIterator();

	Iterator<Integer> result = getReducingIterator(iterator, serializerFactory2.getSerializer(), comparator2.duplicate());
	while (result.hasNext()) {
		Assert.assertEquals(noKeyCnt, result.next().intValue());
	}
	
	merger.close();
	
	// if the combiner was opened, it must have been closed
	Assert.assertTrue(comb.opened == comb.closed);
}
Example 10
Source File: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCombine() throws Exception
{
	int noKeys = 100;
	int noKeyCnt = 10000;

	TestData.MockTuple2Reader<Tuple2<Integer, Integer>> reader = TestData.getIntIntTupleReader();

	LOG.debug("initializing sortmerger");
	
	TestCountCombiner comb = new TestCountCombiner();
	
	Sorter<Tuple2<Integer, Integer>> merger = new CombiningUnilateralSortMerger<>(comb,
			this.memoryManager, this.ioManager, reader, this.parentTask, this.serializerFactory2, this.comparator2,
			0.25, 64, 0.7f, true /* use large record handler */, false);

	final Tuple2<Integer, Integer> rec = new Tuple2<>();
	rec.setField(1, 1);
	
	for (int i = 0; i < noKeyCnt; i++) {
		for (int j = 0; j < noKeys; j++) {
			rec.setField(j, 0);
			reader.emit(rec);
		}
	}
	reader.close();
	
	MutableObjectIterator<Tuple2<Integer, Integer>> iterator = merger.getIterator();

	Iterator<Integer> result = getReducingIterator(iterator, serializerFactory2.getSerializer(), comparator2.duplicate());
	while (result.hasNext()) {
		Assert.assertEquals(noKeyCnt, result.next().intValue());
	}
	
	merger.close();
	
	// if the combiner was opened, it must have been closed
	Assert.assertTrue(comb.opened == comb.closed);
}
Example 11
Source File: DependencyConnectedComponentsITCase.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Override
public Tuple2<Long, Long> join(Tuple2<Long, Long> edge,
		Tuple2<Long, Long> vertexWithCompId) throws Exception {

	vertexWithCompId.setField(edge.f1, 0);
	return vertexWithCompId;
}
Example 12
Source File: MergeIteratorTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private MutableObjectIterator<Tuple2<Integer, String>> newIterator(final int[] keys, final String[] values) {
	
	return new MutableObjectIterator<Tuple2<Integer, String>>() {
		
		private int key = 0;
		private String value = new String();
		
		private int current = 0;

		@Override
		public Tuple2<Integer, String> next(Tuple2<Integer, String> reuse) {
			if (current < keys.length) {
				key = keys[current];
				value = values[current];
				current++;
				reuse.setField(key, 0);
				reuse.setField(value, 1);
				return reuse;
			}
			else {
				return null;
			}
		}

		@Override
		public Tuple2<Integer, String> next() {
			if (current < keys.length) {
				Tuple2<Integer, String> result = new Tuple2<>(keys[current], values[current]);
				current++;
				return result;
			}
			else {
				return null;
			}
		}
	};
}
Example 13
Source File: CombiningUnilateralSortMergerITCase.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCombineSpillingDisableObjectReuse() throws Exception {
	int noKeys = 100;
	int noKeyCnt = 10000;

	TestData.MockTuple2Reader<Tuple2<Integer, Integer>> reader = TestData.getIntIntTupleReader();

	LOG.debug("initializing sortmerger");

	MaterializedCountCombiner comb = new MaterializedCountCombiner();

	// set maxNumFileHandles = 2 to trigger multiple channel merging
	Sorter<Tuple2<Integer, Integer>> merger = new CombiningUnilateralSortMerger<>(comb,
			this.memoryManager, this.ioManager, reader, this.parentTask, this.serializerFactory2, this.comparator2,
			0.01, 2, 0.005f, true /* use large record handler */, false);

	final Tuple2<Integer, Integer> rec = new Tuple2<>();

	for (int i = 0; i < noKeyCnt; i++) {
		rec.setField(i, 0);
		for (int j = 0; j < noKeys; j++) {
			rec.setField(j, 1);
			reader.emit(rec);
		}
	}
	reader.close();

	MutableObjectIterator<Tuple2<Integer, Integer>> iterator = merger.getIterator();
	Iterator<Integer> result = getReducingIterator(iterator, serializerFactory2.getSerializer(), comparator2.duplicate());
	while (result.hasNext()) {
		Assert.assertEquals(4950, result.next().intValue());
	}

	merger.close();
}
Example 14
Source File: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testCombineSpilling() throws Exception {
	int noKeys = 100;
	int noKeyCnt = 10000;

	TestData.MockTuple2Reader<Tuple2<Integer, Integer>> reader = TestData.getIntIntTupleReader();

	LOG.debug("initializing sortmerger");
	
	TestCountCombiner comb = new TestCountCombiner();
	
	Sorter<Tuple2<Integer, Integer>> merger = new CombiningUnilateralSortMerger<>(comb,
			this.memoryManager, this.ioManager, reader, this.parentTask, this.serializerFactory2, this.comparator2,
			0.01, 64, 0.005f, true /* use large record handler */, true);

	final Tuple2<Integer, Integer> rec = new Tuple2<>();
	rec.setField(1, 1);
	
	for (int i = 0; i < noKeyCnt; i++) {
		for (int j = 0; j < noKeys; j++) {
			rec.setField(j, 0);
			reader.emit(rec);
		}
	}
	reader.close();
	
	MutableObjectIterator<Tuple2<Integer, Integer>> iterator = merger.getIterator();

	Iterator<Integer> result = getReducingIterator(iterator, serializerFactory2.getSerializer(), comparator2.duplicate());
	while (result.hasNext()) {
		Assert.assertEquals(noKeyCnt, result.next().intValue());
	}
	
	merger.close();
	
	// if the combiner was opened, it must have been closed
	Assert.assertTrue(comb.opened == comb.closed);
}
Example 15
Source File: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Override
public void combine(Iterable<Tuple2<Integer, Integer>> values, Collector<Tuple2<Integer, Integer>> out) {
	Tuple2<Integer, Integer> rec = new Tuple2<>();
	int cnt = 0;
	for (Tuple2<Integer, Integer> next : values) {
		rec = next;
		cnt += rec.f1;
	}
	
	this.count = cnt;
	rec.setField(this.count, 1);
	out.collect(rec);
}
Example 16
Source File: UdfAnalyzerTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Override
public Tuple2<Integer, Integer> map(Tuple2<Integer, Integer> value) throws Exception {
	Tuple2<Integer, Integer> t = new Tuple2<Integer, Integer>();
	t.setField(value.f1, 0);
	t.setField(value.getField(0), 1);
	return t;
}
Example 17
Source File: UdfAnalyzerTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Override
public Tuple2<Integer, Integer> map(Tuple2<Integer, Integer> value) throws Exception {
	Integer i = value.f0;
	value.setField(value.f1, 0);
	value.setField(i, 1);
	return value;
}
Example 18
Source File: CombiningUnilateralSortMergerITCase.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testSortAndValidate() throws Exception
{
	final Hashtable<Integer, Integer> countTable = new Hashtable<>(KEY_MAX);
	for (int i = 1; i <= KEY_MAX; i++) {
		countTable.put(i, 0);
	}

	// comparator
	final TypeComparator<Integer> keyComparator = new IntComparator(true);

	// reader
	TestData.MockTuple2Reader<Tuple2<Integer, String>> reader = TestData.getIntStringTupleReader();

	// merge iterator
	LOG.debug("initializing sortmerger");
	
	TestCountCombiner2 comb = new TestCountCombiner2();
	
	Sorter<Tuple2<Integer, String>> merger = new CombiningUnilateralSortMerger<>(comb,
			this.memoryManager, this.ioManager, reader, this.parentTask, this.serializerFactory1, this.comparator1,
			0.25, 2, 0.7f, true /* use large record handler */, false);

	// emit data
	LOG.debug("emitting data");
	TestData.TupleGenerator generator = new TestData.TupleGenerator(SEED, KEY_MAX, VALUE_LENGTH, KeyMode.RANDOM, ValueMode.FIX_LENGTH);
	Tuple2<Integer, String> rec = new Tuple2<>();
	
	for (int i = 0; i < NUM_PAIRS; i++) {
		Assert.assertTrue((rec = generator.next(rec)) != null);
		final Integer key = rec.f0;
		rec.setField("1", 1);
		reader.emit(rec);
		
		countTable.put(key, countTable.get(key) + 1);
	}
	reader.close();

	// check order
	MutableObjectIterator<Tuple2<Integer, String>> iterator = merger.getIterator();
	
	LOG.debug("checking results");
	
	Tuple2<Integer, String> rec1 = new Tuple2<>();
	Tuple2<Integer, String> rec2 = new Tuple2<>();
	
	Assert.assertTrue((rec1 = iterator.next(rec1)) != null);
	countTable.put(rec1.f0, countTable.get(rec1.f0) - (Integer.parseInt(rec1.f1)));

	while ((rec2 = iterator.next(rec2)) != null) {
		int k1 = rec1.f0;
		int k2 = rec2.f0;
		
		Assert.assertTrue(keyComparator.compare(k1, k2) <= 0); 
		countTable.put(k2, countTable.get(k2) - (Integer.parseInt(rec2.f1)));
		
		rec1 = rec2;
	}

	for (Integer cnt : countTable.values()) {
		Assert.assertTrue(cnt == 0);
	}
	
	merger.close();
	
	// if the combiner was opened, it must have been closed
	Assert.assertTrue(comb.opened == comb.closed);
}
Example 19
Source File: CombiningUnilateralSortMergerITCase.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Test
public void testSortAndValidate() throws Exception
{
	final Hashtable<Integer, Integer> countTable = new Hashtable<>(KEY_MAX);
	for (int i = 1; i <= KEY_MAX; i++) {
		countTable.put(i, 0);
	}

	// comparator
	final TypeComparator<Integer> keyComparator = new IntComparator(true);

	// reader
	TestData.MockTuple2Reader<Tuple2<Integer, String>> reader = TestData.getIntStringTupleReader();

	// merge iterator
	LOG.debug("initializing sortmerger");
	
	TestCountCombiner2 comb = new TestCountCombiner2();
	
	Sorter<Tuple2<Integer, String>> merger = new CombiningUnilateralSortMerger<>(comb,
			this.memoryManager, this.ioManager, reader, this.parentTask, this.serializerFactory1, this.comparator1,
			0.25, 2, 0.7f, true /* use large record handler */, false);

	// emit data
	LOG.debug("emitting data");
	TestData.TupleGenerator generator = new TestData.TupleGenerator(SEED, KEY_MAX, VALUE_LENGTH, KeyMode.RANDOM, ValueMode.FIX_LENGTH);
	Tuple2<Integer, String> rec = new Tuple2<>();
	
	for (int i = 0; i < NUM_PAIRS; i++) {
		Assert.assertTrue((rec = generator.next(rec)) != null);
		final Integer key = rec.f0;
		rec.setField("1", 1);
		reader.emit(rec);
		
		countTable.put(key, countTable.get(key) + 1);
	}
	reader.close();

	// check order
	MutableObjectIterator<Tuple2<Integer, String>> iterator = merger.getIterator();
	
	LOG.debug("checking results");
	
	Tuple2<Integer, String> rec1 = new Tuple2<>();
	Tuple2<Integer, String> rec2 = new Tuple2<>();
	
	Assert.assertTrue((rec1 = iterator.next(rec1)) != null);
	countTable.put(rec1.f0, countTable.get(rec1.f0) - (Integer.parseInt(rec1.f1)));

	while ((rec2 = iterator.next(rec2)) != null) {
		int k1 = rec1.f0;
		int k2 = rec2.f0;
		
		Assert.assertTrue(keyComparator.compare(k1, k2) <= 0); 
		countTable.put(k2, countTable.get(k2) - (Integer.parseInt(rec2.f1)));
		
		rec1 = rec2;
	}

	for (Integer cnt : countTable.values()) {
		Assert.assertTrue(cnt == 0);
	}
	
	merger.close();
	
	// if the combiner was opened, it must have been closed
	Assert.assertTrue(comb.opened == comb.closed);
}
Example 20
Source File: TestSlice.java    From gelly-streaming with Apache License 2.0 4 votes vote down vote up 
public Tuple2<Long, Long> foldEdges(Tuple2<Long, Long> accum, Long id, Long neighborID, Long edgeValue) {
	accum.setField(id, 0);
	accum.setField(accum.f1 + edgeValue, 1);
	return accum;
}