/**
* 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 static java.util.Arrays.asList;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.common.functions.RichMapFunction;
import org.apache.flink.api.common.functions.RuntimeContext;
import org.apache.flink.api.common.functions.util.RuntimeUDFContext;
import org.apache.flink.api.common.operators.UnaryOperatorInformation;
import org.apache.flink.api.common.operators.base.MapOperatorBase;
import org.apache.flink.api.common.typeinfo.BasicTypeInfo;
import org.apache.flink.configuration.Configuration;
import org.junit.Test;
@SuppressWarnings("serial")
public class MapOperatorTest implements java.io.Serializable {
@Test
public void testMapPlain() {
try {
final MapFunction<String, Integer> parser = new MapFunction<String, Integer>() {
@Override
public Integer map(String value) {
return Integer.parseInt(value);
}
};
MapOperatorBase<String, Integer, MapFunction<String, Integer>> op = new MapOperatorBase<String, Integer, MapFunction<String,Integer>>(
parser, new UnaryOperatorInformation<String, Integer>(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO), "TestMapper");
List<String> input = new ArrayList<String>(asList("1", "2", "3", "4", "5", "6"));
List<Integer> resultMutableSafe = op.executeOnCollections(input, null, true);
List<Integer> resultRegular = op.executeOnCollections(input, null, false);
assertEquals(asList(1, 2, 3, 4, 5, 6), resultMutableSafe);
assertEquals(asList(1, 2, 3, 4, 5, 6), resultRegular);
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testMapWithRuntimeContext() {
try {
final String taskName = "Test Task";
final AtomicBoolean opened = new AtomicBoolean();
final AtomicBoolean closed = new AtomicBoolean();
final MapFunction<String, Integer> parser = new RichMapFunction<String, Integer>() {
@Override
public void open(Configuration parameters) throws Exception {
opened.set(true);
RuntimeContext ctx = getRuntimeContext();
assertEquals(0, ctx.getIndexOfThisSubtask());
assertEquals(1, ctx.getNumberOfParallelSubtasks());
assertEquals(taskName, ctx.getTaskName());
}
@Override
public Integer map(String value) {
return Integer.parseInt(value);
}
@Override
public void close() throws Exception {
closed.set(true);
}
};
MapOperatorBase<String, Integer, MapFunction<String, Integer>> op = new MapOperatorBase<String, Integer, MapFunction<String,Integer>>(
parser, new UnaryOperatorInformation<String, Integer>(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO), taskName);
List<String> input = new ArrayList<String>(asList("1", "2", "3", "4", "5", "6"));
List<Integer> resultMutableSafe = op.executeOnCollections(input, new RuntimeUDFContext(taskName, 1, 0, null), true);
List<Integer> resultRegular = op.executeOnCollections(input, new RuntimeUDFContext(taskName, 1, 0, null), false);
assertEquals(asList(1, 2, 3, 4, 5, 6), resultMutableSafe);
assertEquals(asList(1, 2, 3, 4, 5, 6), resultRegular);
assertTrue(opened.get());
assertTrue(closed.get());
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
}