org.apache.flink.api.common.functions.RichCoGroupFunction Java Examples

The following examples show how to use org.apache.flink.api.common.functions.RichCoGroupFunction. 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: CoGroupOperatorCollectionTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
private CoGroupOperatorBase<Tuple2<String, Integer>, Tuple2<String, Integer>,
		Tuple2<String, Integer>, CoGroupFunction<Tuple2<String, Integer>, Tuple2<String, Integer>,
		Tuple2<String, Integer>>> getCoGroupOperator(
		RichCoGroupFunction<Tuple2<String, Integer>, Tuple2<String, Integer>, Tuple2<String, Integer>> udf) {

	TypeInformation<Tuple2<String, Integer>> tuple2Info = TypeInformation.of(new TypeHint<Tuple2<String, Integer>>(){});

	return new CoGroupOperatorBase<>(
			udf,
			new BinaryOperatorInformation<>(tuple2Info, tuple2Info, tuple2Info),
			new int[]{0},
			new int[]{0},
			"coGroup on Collections"
	);
}
Example #2
Source File: TypeExtractorTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings({ "rawtypes", "unchecked" })
@Test
public void testBasicArray() {
	// use getCoGroupReturnTypes()
	RichCoGroupFunction<?, ?, ?> function = new RichCoGroupFunction<String[], String[], String[]>() {
		private static final long serialVersionUID = 1L;

		@Override
		public void coGroup(Iterable<String[]> first, Iterable<String[]> second, Collector<String[]> out) throws Exception {
			// nothing to do
		}
	};

	TypeInformation<?> ti = TypeExtractor.getCoGroupReturnTypes(function, (TypeInformation) TypeInformation.of(new TypeHint<String[]>(){}), (TypeInformation) TypeInformation.of(new TypeHint<String[]>(){}));

	Assert.assertFalse(ti.isBasicType());
	Assert.assertFalse(ti.isTupleType());
	
	// Due to a Java 6 bug the classification can be slightly wrong
	Assert.assertTrue(ti instanceof BasicArrayTypeInfo<?,?> || ti instanceof ObjectArrayTypeInfo<?,?>);
	
	if(ti instanceof BasicArrayTypeInfo<?,?>) {
		Assert.assertEquals(BasicArrayTypeInfo.STRING_ARRAY_TYPE_INFO, ti);
	}
	else {
		Assert.assertEquals(BasicTypeInfo.STRING_TYPE_INFO, ((ObjectArrayTypeInfo<?,?>) ti).getComponentInfo());
	}		
}
Example #3
Source File: CoGroupOperatorCollectionTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private CoGroupOperatorBase<Tuple2<String, Integer>, Tuple2<String, Integer>,
		Tuple2<String, Integer>, CoGroupFunction<Tuple2<String, Integer>, Tuple2<String, Integer>,
		Tuple2<String, Integer>>> getCoGroupOperator(
		RichCoGroupFunction<Tuple2<String, Integer>, Tuple2<String, Integer>, Tuple2<String, Integer>> udf) {

	TypeInformation<Tuple2<String, Integer>> tuple2Info = TypeInformation.of(new TypeHint<Tuple2<String, Integer>>(){});

	return new CoGroupOperatorBase<>(
			udf,
			new BinaryOperatorInformation<>(tuple2Info, tuple2Info, tuple2Info),
			new int[]{0},
			new int[]{0},
			"coGroup on Collections"
	);
}
Example #4
Source File: TypeExtractorTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings({ "rawtypes", "unchecked" })
@Test
public void testBasicArray() {
	// use getCoGroupReturnTypes()
	RichCoGroupFunction<?, ?, ?> function = new RichCoGroupFunction<String[], String[], String[]>() {
		private static final long serialVersionUID = 1L;

		@Override
		public void coGroup(Iterable<String[]> first, Iterable<String[]> second, Collector<String[]> out) throws Exception {
			// nothing to do
		}
	};

	TypeInformation<?> ti = TypeExtractor.getCoGroupReturnTypes(function, (TypeInformation) TypeInformation.of(new TypeHint<String[]>(){}), (TypeInformation) TypeInformation.of(new TypeHint<String[]>(){}));

	Assert.assertFalse(ti.isBasicType());
	Assert.assertFalse(ti.isTupleType());
	
	// Due to a Java 6 bug the classification can be slightly wrong
	Assert.assertTrue(ti instanceof BasicArrayTypeInfo<?,?> || ti instanceof ObjectArrayTypeInfo<?,?>);
	
	if(ti instanceof BasicArrayTypeInfo<?,?>) {
		Assert.assertEquals(BasicArrayTypeInfo.STRING_ARRAY_TYPE_INFO, ti);
	}
	else {
		Assert.assertEquals(BasicTypeInfo.STRING_TYPE_INFO, ((ObjectArrayTypeInfo<?,?>) ti).getComponentInfo());
	}		
}
Example #5
Source File: CoGroupOperatorCollectionTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private CoGroupOperatorBase<Tuple2<String, Integer>, Tuple2<String, Integer>,
		Tuple2<String, Integer>, CoGroupFunction<Tuple2<String, Integer>, Tuple2<String, Integer>,
		Tuple2<String, Integer>>> getCoGroupOperator(
		RichCoGroupFunction<Tuple2<String, Integer>, Tuple2<String, Integer>, Tuple2<String, Integer>> udf) {

	TypeInformation<Tuple2<String, Integer>> tuple2Info = TypeInformation.of(new TypeHint<Tuple2<String, Integer>>(){});

	return new CoGroupOperatorBase<>(
			udf,
			new BinaryOperatorInformation<>(tuple2Info, tuple2Info, tuple2Info),
			new int[]{0},
			new int[]{0},
			"coGroup on Collections"
	);
}
Example #6
Source File: TypeExtractorTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings({ "rawtypes", "unchecked" })
@Test
public void testBasicArray() {
	// use getCoGroupReturnTypes()
	RichCoGroupFunction<?, ?, ?> function = new RichCoGroupFunction<String[], String[], String[]>() {
		private static final long serialVersionUID = 1L;

		@Override
		public void coGroup(Iterable<String[]> first, Iterable<String[]> second, Collector<String[]> out) throws Exception {
			// nothing to do
		}
	};

	TypeInformation<?> ti = TypeExtractor.getCoGroupReturnTypes(function, (TypeInformation) TypeInformation.of(new TypeHint<String[]>(){}), (TypeInformation) TypeInformation.of(new TypeHint<String[]>(){}));

	Assert.assertFalse(ti.isBasicType());
	Assert.assertFalse(ti.isTupleType());
	
	// Due to a Java 6 bug the classification can be slightly wrong
	Assert.assertTrue(ti instanceof BasicArrayTypeInfo<?,?> || ti instanceof ObjectArrayTypeInfo<?,?>);
	
	if(ti instanceof BasicArrayTypeInfo<?,?>) {
		Assert.assertEquals(BasicArrayTypeInfo.STRING_ARRAY_TYPE_INFO, ti);
	}
	else {
		Assert.assertEquals(BasicTypeInfo.STRING_TYPE_INFO, ((ObjectArrayTypeInfo<?,?>) ti).getComponentInfo());
	}		
}