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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2576] Add Outer Join operator to Optimi...
Date Fri, 25 Sep 2015 15:22:20 GMT
Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/1138#discussion_r40441316
  
    --- Diff: flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/OuterJoinITCase.java
---
    @@ -0,0 +1,679 @@
    +/*
    + * 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://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.test.javaApiOperators;
    +
    +import org.apache.flink.api.common.InvalidProgramException;
    +import org.apache.flink.api.common.functions.FlatJoinFunction;
    +import org.apache.flink.api.common.functions.JoinFunction;
    +import org.apache.flink.api.common.functions.RichFlatJoinFunction;
    +import org.apache.flink.api.java.DataSet;
    +import org.apache.flink.api.java.ExecutionEnvironment;
    +import org.apache.flink.api.java.functions.KeySelector;
    +import org.apache.flink.api.java.tuple.Tuple2;
    +import org.apache.flink.api.java.tuple.Tuple3;
    +import org.apache.flink.api.java.tuple.Tuple5;
    +import org.apache.flink.api.java.tuple.Tuple6;
    +import org.apache.flink.api.java.tuple.Tuple7;
    +import org.apache.flink.configuration.Configuration;
    +import org.apache.flink.test.javaApiOperators.util.CollectionDataSets;
    +import org.apache.flink.test.javaApiOperators.util.CollectionDataSets.CustomType;
    +import org.apache.flink.test.javaApiOperators.util.CollectionDataSets.POJO;
    +import org.apache.flink.test.util.MultipleProgramsTestBase;
    +import org.apache.flink.util.Collector;
    +import org.junit.Test;
    +import org.junit.runner.RunWith;
    +import org.junit.runners.Parameterized;
    +
    +import java.util.Collection;
    +import java.util.List;
    +
    +@SuppressWarnings("serial")
    +@RunWith(Parameterized.class)
    +public class OuterJoinITCase extends MultipleProgramsTestBase {
    +
    +	public OuterJoinITCase(TestExecutionMode mode) {
    +		super(mode);
    +	}
    +
    +	@Test
    +	public void testUDFLeftOuterJoinOnTuplesWithKeyFieldPositions() throws Exception {
    +		/*
    +		 * UDF Join on tuples with key field positions
    +		 */
    +
    +		final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    +
    +		DataSet<Tuple3<Integer, Long, String>> ds1 = CollectionDataSets.getSmall3TupleDataSet(env);
    +		DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
    +		DataSet<Tuple2<String, String>> joinDs =
    +				ds1.leftOuterJoin(ds2)
    +						.where(0)
    +						.equalTo(0)
    +						.with(new T3T5FlatJoin());
    +
    +		List<Tuple2<String, String>> result = joinDs.collect();
    +
    +		String expected = "Hi,Hallo\n" +
    +				"Hello,Hallo Welt\n" +
    +				"Hello,Hallo Welt wie\n" +
    +				"Hello world,null\n";
    +
    +		compareResultAsTuples(result, expected);
    +	}
    +
    +	@Test
    +	public void testUDFRightOuterJoinOnTuplesWithKeyFieldPositions() throws Exception {
    +		/*
    +		 * UDF Join on tuples with key field positions
    +		 */
    +
    +		final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    +
    +		DataSet<Tuple3<Integer, Long, String>> ds1 = CollectionDataSets.getSmall3TupleDataSet(env);
    +		DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
    +		DataSet<Tuple2<String, String>> joinDs =
    +				ds1.rightOuterJoin(ds2)
    +						.where(1)
    +						.equalTo(1)
    +						.with(new T3T5FlatJoin());
    +
    +		List<Tuple2<String, String>> result = joinDs.collect();
    +
    +		String expected = "Hi,Hallo\n" +
    +				"Hello,Hallo Welt\n" +
    +				"null,Hallo Welt wie\n" +
    +				"Hello world,Hallo Welt\n";
    +
    +		compareResultAsTuples(result, expected);
    +	}
    +
    +	@Test
    +	public void testUDFFullOuterJoinOnTuplesWithKeyFieldPositions() throws Exception {
    +		/*
    +		 * UDF Join on tuples with key field positions
    +		 */
    +
    +		final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    +
    +		DataSet<Tuple3<Integer, Long, String>> ds1 = CollectionDataSets.getSmall3TupleDataSet(env);
    +		DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
    +		DataSet<Tuple2<String, String>> joinDs =
    +				ds1.fullOuterJoin(ds2)
    +						.where(0)
    +						.equalTo(2)
    +						.with(new T3T5FlatJoin());
    +
    +		List<Tuple2<String, String>> result = joinDs.collect();
    +
    +		String expected = "null,Hallo\n" +
    +				"Hi,Hallo Welt\n" +
    +				"Hello,Hallo Welt wie\n" +
    +				"Hello world,null\n";
    +
    +		compareResultAsTuples(result, expected);
    +	}
    +
    +	@Test
    +	public void testUDFJoinOnTuplesWithMultipleKeyFieldPositions() throws Exception {
    +		/*
    +		 * UDF Join on tuples with multiple key field positions
    +		 */
    +
    +		final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    +
    +		DataSet<Tuple3<Integer, Long, String>> ds1 = CollectionDataSets.getSmall3TupleDataSet(env);
    +		DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
    +		DataSet<Tuple2<String, String>> joinDs =
    +				ds1.fullOuterJoin(ds2)
    +						.where(0, 1)
    +						.equalTo(0, 4)
    +						.with(new T3T5FlatJoin());
    +
    +		List<Tuple2<String, String>> result = joinDs.collect();
    +
    +		String expected = "Hi,Hallo\n" +
    +				"Hello,Hallo Welt\n" +
    +				"Hello world,null\n" +
    +				"null,Hallo Welt wie\n";
    +
    +		compareResultAsTuples(result, expected);
    +	}
    +
    +	@Test(expected = InvalidProgramException.class)
    +	public void testDefaultJoin() throws Exception {
    --- End diff --
    
    This check should be done as a unit test (as mentioned in my other comment).


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