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Add SemanticPropertiesTranslationTest for Scala API
Fix join operator to user proper EquiJoin constructor so that semantic properties are actually retrieved. Fix typo, getSematicProperties -> getSemanticProperties
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...c/test/scala/org/apache/flink/api/scala/functions/SemanticPropertiesTranslationTest.scala
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| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http:https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.flink.api.scala.functions | ||
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| import org.junit.Assert._ | ||
| import org.apache.flink.api.common.functions.RichJoinFunction | ||
| import org.apache.flink.api.common.functions.RichMapFunction | ||
| import org.apache.flink.api.common.operators.SingleInputSemanticProperties | ||
| import org.apache.flink.api.common.operators.base.{JoinOperatorBase, GenericDataSinkBase, | ||
| MapOperatorBase} | ||
| import org.apache.flink.api.common.operators.util.FieldSet | ||
| import org.apache.flink.api.java.functions.FunctionAnnotation.ConstantFields | ||
| import org.apache.flink.api.java.functions.FunctionAnnotation.ConstantFieldsFirst | ||
| import org.apache.flink.api.java.functions.FunctionAnnotation.ConstantFieldsSecond | ||
| import org.junit.Test | ||
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| import org.apache.flink.api.scala._ | ||
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| /** | ||
| * This is a minimal test to verify that semantic annotations are evaluated against | ||
| * the type information properly translated correctly to the common data flow API. | ||
| * | ||
| * This covers only the constant fields annotations currently !!! | ||
| */ | ||
| class SemanticPropertiesTranslationTest { | ||
| /** | ||
| * A mapper that preserves all fields over a tuple data set. | ||
| */ | ||
| @Test | ||
| def translateUnaryFunctionAnnotationTuplesWildCard(): Unit = { | ||
| try { | ||
| val env = ExecutionEnvironment.getExecutionEnvironment | ||
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| val input = env.fromElements((3l, "test", 42)) | ||
| input.map(new WildcardConstantMapper[(Long, String, Int)]).print() | ||
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| val plan = env.createProgramPlan() | ||
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| val sink: GenericDataSinkBase[_] = plan.getDataSinks.iterator.next | ||
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| val mapper: MapOperatorBase[_, _, _] = sink.getInput.asInstanceOf[MapOperatorBase[_, _, _]] | ||
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| val semantics: SingleInputSemanticProperties = mapper.getSemanticProperties | ||
| val fw1: FieldSet = semantics.getForwardedField(0) | ||
| val fw2: FieldSet = semantics.getForwardedField(1) | ||
| val fw3: FieldSet = semantics.getForwardedField(2) | ||
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| assertNotNull(fw1) | ||
| assertNotNull(fw2) | ||
| assertNotNull(fw3) | ||
| assertTrue(fw1.contains(0)) | ||
| assertTrue(fw2.contains(1)) | ||
| assertTrue(fw3.contains(2)) | ||
| } catch { | ||
| case e: Exception => { | ||
| System.err.println(e.getMessage) | ||
| e.printStackTrace() | ||
| fail("Exception in test: " + e.getMessage) | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * A mapper that preserves fields 0, 1, 2 of a tuple data set. | ||
| */ | ||
| @Test | ||
| def translateUnaryFunctionAnnotationTuples(): Unit = { | ||
| try { | ||
| val env = ExecutionEnvironment.getExecutionEnvironment | ||
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| val input = env.fromElements((3l, "test", 42)) | ||
| input.map(new IndividualConstantMapper[Long, String, Int]).print() | ||
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| val plan = env.createProgramPlan() | ||
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| val sink: GenericDataSinkBase[_] = plan.getDataSinks.iterator.next | ||
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| val mapper: MapOperatorBase[_, _, _] = sink.getInput.asInstanceOf[MapOperatorBase[_, _, _]] | ||
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| val semantics: SingleInputSemanticProperties = mapper.getSemanticProperties | ||
| val fw1: FieldSet = semantics.getForwardedField(0) | ||
| val fw2: FieldSet = semantics.getForwardedField(1) | ||
| val fw3: FieldSet = semantics.getForwardedField(2) | ||
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| assertNotNull(fw1) | ||
| assertNotNull(fw2) | ||
| assertNotNull(fw3) | ||
| assertTrue(fw1.contains(0)) | ||
| assertTrue(fw2.contains(1)) | ||
| assertTrue(fw3.contains(2)) | ||
| } catch { | ||
| case e: Exception => { | ||
| System.err.println(e.getMessage) | ||
| e.printStackTrace() | ||
| fail("Exception in test: " + e.getMessage) | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * A join that preserves tuple fields from both sides. | ||
| */ | ||
| @Test | ||
| def translateBinaryFunctionAnnotationTuples(): Unit = { | ||
| try { | ||
| val env = ExecutionEnvironment.getExecutionEnvironment | ||
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| val input1 = env.fromElements((3l, "test")) | ||
| val input2 = env.fromElements((3l, 3.1415)) | ||
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| input1.join(input2).where(0).equalTo(0)( | ||
| new ForwardingTupleJoin[Long, String, Long, Double]).print() | ||
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| val plan = env.createProgramPlan() | ||
| val sink: GenericDataSinkBase[_] = plan.getDataSinks.iterator.next | ||
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| val join: JoinOperatorBase[_, _, _, _] = | ||
| sink.getInput.asInstanceOf[JoinOperatorBase[_, _, _, _]] | ||
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| val semantics = join.getSemanticProperties | ||
| val fw11: FieldSet = semantics.getForwardedField1(0) | ||
| val fw12: FieldSet = semantics.getForwardedField1(1) | ||
| val fw21: FieldSet = semantics.getForwardedField2(0) | ||
| val fw22: FieldSet = semantics.getForwardedField2(1) | ||
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| assertNull(fw11) | ||
| assertNull(fw21) | ||
| assertNotNull(fw12) | ||
| assertNotNull(fw22) | ||
| assertTrue(fw12.contains(0)) | ||
| assertTrue(fw22.contains(1)) | ||
| } | ||
| catch { | ||
| case e: Exception => { | ||
| System.err.println(e.getMessage) | ||
| e.printStackTrace() | ||
| fail("Exception in test: " + e.getMessage) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| @ConstantFields(Array("*")) | ||
| class WildcardConstantMapper[T] extends RichMapFunction[T, T] { | ||
| def map(value: T): T = { | ||
| value | ||
| } | ||
| } | ||
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| @ConstantFields(Array("0->0;1->1;2->2")) | ||
| class IndividualConstantMapper[X, Y, Z] extends RichMapFunction[(X, Y, Z), (X, Y, Z)] { | ||
| def map(value: (X, Y, Z)): (X, Y, Z) = { | ||
| value | ||
| } | ||
| } | ||
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| @ConstantFields(Array("0")) | ||
| class ZeroConstantMapper[T] extends RichMapFunction[T, T] { | ||
| def map(value: T): T = { | ||
| value | ||
| } | ||
| } | ||
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| @ConstantFieldsFirst(Array("1 -> 0")) | ||
| @ConstantFieldsSecond(Array("1 -> 1")) | ||
| class ForwardingTupleJoin[A, B, C, D] extends RichJoinFunction[(A, B), (C, D), (B, D)] { | ||
| def join(first: (A, B), second: (C, D)): (B, D) = { | ||
| (first._2, second._2) | ||
| } | ||
| } | ||
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| @ConstantFieldsFirst(Array("0 -> 0")) | ||
| @ConstantFieldsSecond(Array("0 -> 1")) | ||
| class ForwardingBasicJoin[A, B] extends RichJoinFunction[A, B, (A, B)] { | ||
| def join(first: A, second: B): (A, B) = { | ||
| (first, second) | ||
| } | ||
| } | ||
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