/**
* 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.api.common.operators.base;
import static org.junit.Assert.*;
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;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
@SuppressWarnings("serial")
public class JoinOperatorBaseTest implements Serializable {
@Test
public void testJoinPlain(){
final FlatJoinFunction<String, String, Integer> joiner = new FlatJoinFunction<String, String, Integer>() {
@Override
public void join(String first, String second, Collector<Integer> out) throws Exception {
out.collect(first.length());
out.collect(second.length());
}
};
@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");
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));
try {
List<Integer> resultSafe = base.executeOnCollections(inputData1, inputData2, null, true);
List<Integer> resultRegular = base.executeOnCollections(inputData1, inputData2, null, false);
assertEquals(expected, resultSafe);
assertEquals(expected, resultRegular);
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testJoinRich(){
final AtomicBoolean opened = new AtomicBoolean(false);
final AtomicBoolean closed = new AtomicBoolean(false);
final String taskName = "Test rich join function";
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());
}
@Override
public void close() throws Exception{
closed.compareAndSet(false, true);
}
@Override
public void join(String first, String second, Collector<Integer> out) throws Exception {
out.collect(first.length());
out.collect(second.length());
}
};
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);
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));
try {
List<Integer> resultSafe = base.executeOnCollections(inputData1, inputData2, new RuntimeUDFContext(taskName, 1, 0, null), true);
List<Integer> resultRegular = base.executeOnCollections(inputData1, inputData2, new RuntimeUDFContext(taskName, 1, 0, null), false);
assertEquals(expected, resultSafe);
assertEquals(expected, resultRegular);
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
assertTrue(opened.get());
assertTrue(closed.get());
}
}