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[FLINK-1110] Started implementing the JoinOperatorBase.
Implemented JoinOperatorBase and test cases.
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122
...k-core/src/test/java/org/apache/flink/api/common/operators/base/JoinOperatorBaseTest.java
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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. | ||
| */ | ||
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| package org.apache.flink.api.common.operators.base; | ||
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| import static org.junit.Assert.*; | ||
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| import org.apache.flink.api.common.functions.FlatJoinFunction; | ||
| import org.apache.flink.api.common.functions.RichFlatJoinFunction; | ||
| import org.apache.flink.api.common.functions.util.RuntimeUDFContext; | ||
| import org.apache.flink.api.common.operators.BinaryOperatorInformation; | ||
| import org.apache.flink.api.common.typeinfo.BasicTypeInfo; | ||
| import org.apache.flink.configuration.Configuration; | ||
| import org.apache.flink.util.Collector; | ||
| import org.junit.Test; | ||
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| import java.io.Serializable; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.concurrent.atomic.AtomicBoolean; | ||
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| @SuppressWarnings("serial") | ||
| public class JoinOperatorBaseTest implements Serializable { | ||
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| @Test | ||
| public void testJoinPlain(){ | ||
| final FlatJoinFunction<String, String, Integer> joiner = new FlatJoinFunction<String, String, Integer>() { | ||
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| @Override | ||
| public void join(String first, String second, Collector<Integer> out) throws Exception { | ||
| out.collect(first.length()); | ||
| out.collect(second.length()); | ||
| } | ||
| }; | ||
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| @SuppressWarnings({ "rawtypes", "unchecked" }) | ||
| JoinOperatorBase<String, String, Integer, | ||
| FlatJoinFunction<String, String,Integer> > base = new JoinOperatorBase(joiner, | ||
| new BinaryOperatorInformation(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO, | ||
| BasicTypeInfo.INT_TYPE_INFO), new int[0], new int[0], "TestJoiner"); | ||
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| List<String> inputData1 = new ArrayList<String>(Arrays.asList("foo", "bar", "foobar")); | ||
| List<String> inputData2 = new ArrayList<String>(Arrays.asList("foobar", "foo")); | ||
| List<Integer> expected = new ArrayList<Integer>(Arrays.asList(3, 3, 6 ,6)); | ||
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| try { | ||
| List<Integer> result = base.executeOnCollections(inputData1, inputData2, null); | ||
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| assertEquals(expected, result); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| fail(e.getMessage()); | ||
| } | ||
| } | ||
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| @Test | ||
| public void testJoinRich(){ | ||
| final AtomicBoolean opened = new AtomicBoolean(false); | ||
| final AtomicBoolean closed = new AtomicBoolean(false); | ||
| final String taskName = "Test rich join function"; | ||
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| final RichFlatJoinFunction<String, String, Integer> joiner = new RichFlatJoinFunction<String, String, Integer>() { | ||
| @Override | ||
| public void open(Configuration parameters) throws Exception { | ||
| opened.compareAndSet(false, true); | ||
| assertEquals(0, getRuntimeContext().getIndexOfThisSubtask()); | ||
| assertEquals(1, getRuntimeContext().getNumberOfParallelSubtasks()); | ||
| } | ||
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| @Override | ||
| public void close() throws Exception{ | ||
| closed.compareAndSet(false, true); | ||
| } | ||
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| @Override | ||
| public void join(String first, String second, Collector<Integer> out) throws Exception { | ||
| out.collect(first.length()); | ||
| out.collect(second.length()); | ||
| } | ||
| }; | ||
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| JoinOperatorBase<String, String, Integer, | ||
| RichFlatJoinFunction<String, String, Integer>> base = new JoinOperatorBase<String, String, Integer, | ||
| RichFlatJoinFunction<String, String, Integer>>(joiner, new BinaryOperatorInformation<String, String, | ||
| Integer>(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO, | ||
| BasicTypeInfo.INT_TYPE_INFO), new int[0], new int[0], taskName); | ||
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| final List<String> inputData1 = new ArrayList<String>(Arrays.asList("foo", "bar", "foobar")); | ||
| final List<String> inputData2 = new ArrayList<String>(Arrays.asList("foobar", "foo")); | ||
| final List<Integer> expected = new ArrayList<Integer>(Arrays.asList(3, 3, 6, 6)); | ||
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| try { | ||
| List<Integer> result = base.executeOnCollections(inputData1, inputData2, new RuntimeUDFContext(taskName, | ||
| 1, 0)); | ||
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| assertEquals(expected, result); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| fail(e.getMessage()); | ||
| } | ||
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| assertTrue(opened.get()); | ||
| assertTrue(closed.get()); | ||
| } | ||
| } |
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