/*
 * 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.classloading.jar;

import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.java.DataSet;
import org.apache.flink.api.java.ExecutionEnvironment;
import org.apache.flink.api.java.io.DiscardingOutputFormat;

/**
 * Test class used by the {@link org.apache.flink.test.classloading.ClassLoaderITCase}.
 *
 * This class is used to test FLINK-3633
 */
public class UserCodeType {
	public static class CustomType {
		private final int value;

		public CustomType(int value) {
			this.value = value;
		}

		@Override
		public String toString() {
			return "CustomType(" + value + ")";
		}
	}

	public static void main(String[] args) throws Exception {
		ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
		env.getConfig().disableSysoutLogging();

		DataSet<Integer> input = env.fromElements(1,2,3,4,5);

		DataSet<CustomType> customTypes = input.map(new MapFunction<Integer, CustomType>() {
			private static final long serialVersionUID = -5878758010124912128L;

			@Override
			public CustomType map(Integer integer) throws Exception {
				return new CustomType(integer);
			}
		}).rebalance();

		DataSet<Integer> result = customTypes.map(new MapFunction<CustomType, Integer>() {
			private static final long serialVersionUID = -7950126399899584991L;

			@Override
			public Integer map(CustomType value) throws Exception {
				return value.value;
			}
		});

		result.output(new DiscardingOutputFormat<Integer>());

		env.execute();
	}
}