flink-core/src/test/java/org/apache/flink/api/java/typeutils/CompositeTypeTest.java

/*
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 * 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,
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 * See the License for the specific language governing permissions and
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package org.apache.flink.api.java.typeutils;

import static org.junit.Assert.*;

import org.apache.flink.api.common.typeinfo.BasicTypeInfo;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.api.java.tuple.Tuple3;
import org.apache.flink.api.java.tuple.Tuple4;
import org.junit.Test;

public class CompositeTypeTest {

	private final TupleTypeInfo<?> tupleTypeInfo = new TupleTypeInfo<Tuple4<Integer, Integer, Integer, Integer>>(
			BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO);


	private final TupleTypeInfo<Tuple3<Integer, String, Long>> inNestedTuple1 = new TupleTypeInfo<Tuple3<Integer, String, Long>>(
			BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.LONG_TYPE_INFO);

	private final TupleTypeInfo<Tuple2<Double, Double>> inNestedTuple2 = new TupleTypeInfo<Tuple2<Double, Double>>(
			BasicTypeInfo.DOUBLE_TYPE_INFO, BasicTypeInfo.DOUBLE_TYPE_INFO);

	private final TupleTypeInfo<?> nestedTypeInfo = new TupleTypeInfo<Tuple4<Integer, Tuple3<Integer, String, Long>, Integer, Tuple2<Double, Double>>>(
			BasicTypeInfo.INT_TYPE_INFO,
			inNestedTuple1,
			BasicTypeInfo.INT_TYPE_INFO,
			inNestedTuple2);

	private final TupleTypeInfo<Tuple2<Integer, Tuple2<Integer, Integer>>> inNestedTuple3 = new TupleTypeInfo<Tuple2<Integer, Tuple2<Integer, Integer>>>(
			BasicTypeInfo.INT_TYPE_INFO,
			new TupleTypeInfo<Tuple2<Integer, Integer>>(BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO));

	private final TupleTypeInfo<?> deepNestedTupleTypeInfo = new TupleTypeInfo<Tuple3<Integer, Tuple2<Integer, Tuple2<Integer, Integer>>, Integer>>(
			BasicTypeInfo.INT_TYPE_INFO,
			inNestedTuple3,
			BasicTypeInfo.INT_TYPE_INFO	);

	private final PojoTypeInfo<?> pojoTypeInfo = ((PojoTypeInfo<?>) TypeExtractor.getForClass
			(MyPojo.class));

	private final TupleTypeInfo<?> pojoInTupleTypeInfo = new TupleTypeInfo<Tuple2<Integer, MyPojo>>(BasicTypeInfo.INT_TYPE_INFO, pojoTypeInfo);

	@Test
	public void testGetFlatFields() {
		assertEquals(0, tupleTypeInfo.getFlatFields("0").get(0).getPosition());
		assertEquals(1, tupleTypeInfo.getFlatFields("1").get(0).getPosition());
		assertEquals(2, tupleTypeInfo.getFlatFields("2").get(0).getPosition());
		assertEquals(3, tupleTypeInfo.getFlatFields("3").get(0).getPosition());
		assertEquals(0, tupleTypeInfo.getFlatFields("f0").get(0).getPosition());
		assertEquals(1, tupleTypeInfo.getFlatFields("f1").get(0).getPosition());
		assertEquals(2, tupleTypeInfo.getFlatFields("f2").get(0).getPosition());
		assertEquals(3, tupleTypeInfo.getFlatFields("f3").get(0).getPosition());

		assertEquals(0, nestedTypeInfo.getFlatFields("0").get(0).getPosition());
		assertEquals(1, nestedTypeInfo.getFlatFields("1.0").get(0).getPosition());
		assertEquals(2, nestedTypeInfo.getFlatFields("1.1").get(0).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("1.2").get(0).getPosition());
		assertEquals(4, nestedTypeInfo.getFlatFields("2").get(0).getPosition());
		assertEquals(5, nestedTypeInfo.getFlatFields("3.0").get(0).getPosition());
		assertEquals(6, nestedTypeInfo.getFlatFields("3.1").get(0).getPosition());
		assertEquals(4, nestedTypeInfo.getFlatFields("f2").get(0).getPosition());
		assertEquals(5, nestedTypeInfo.getFlatFields("f3.f0").get(0).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("1").size());
		assertEquals(1, nestedTypeInfo.getFlatFields("1").get(0).getPosition());
		assertEquals(2, nestedTypeInfo.getFlatFields("1").get(1).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("1").get(2).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("1.*").size());
		assertEquals(1, nestedTypeInfo.getFlatFields("1.*").get(0).getPosition());
		assertEquals(2, nestedTypeInfo.getFlatFields("1.*").get(1).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("1.*").get(2).getPosition());
		assertEquals(2, nestedTypeInfo.getFlatFields("3").size());
		assertEquals(5, nestedTypeInfo.getFlatFields("3").get(0).getPosition());
		assertEquals(6, nestedTypeInfo.getFlatFields("3").get(1).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("f1").size());
		assertEquals(1, nestedTypeInfo.getFlatFields("f1").get(0).getPosition());
		assertEquals(2, nestedTypeInfo.getFlatFields("f1").get(1).getPosition());
		assertEquals(3, nestedTypeInfo.getFlatFields("f1").get(2).getPosition());
		assertEquals(2, nestedTypeInfo.getFlatFields("f3").size());
		assertEquals(5, nestedTypeInfo.getFlatFields("f3").get(0).getPosition());
		assertEquals(6, nestedTypeInfo.getFlatFields("f3").get(1).getPosition());
		assertEquals(BasicTypeInfo.INT_TYPE_INFO,
				nestedTypeInfo.getFlatFields("0").get(0).getType());
		assertEquals(BasicTypeInfo.STRING_TYPE_INFO,
				nestedTypeInfo.getFlatFields("1.1").get(0).getType());
		assertEquals(BasicTypeInfo.LONG_TYPE_INFO,
				nestedTypeInfo.getFlatFields("1").get(2).getType());
		assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO,
				nestedTypeInfo.getFlatFields("3").get(1).getType());

		assertEquals(3, deepNestedTupleTypeInfo.getFlatFields("1").size());
		assertEquals(1, deepNestedTupleTypeInfo.getFlatFields("1").get(0).getPosition());
		assertEquals(2, deepNestedTupleTypeInfo.getFlatFields("1").get(1).getPosition());
		assertEquals(3, deepNestedTupleTypeInfo.getFlatFields("1").get(2).getPosition());
		assertEquals(5, deepNestedTupleTypeInfo.getFlatFields("*").size());
		assertEquals(0, deepNestedTupleTypeInfo.getFlatFields("*").get(0).getPosition());
		assertEquals(1, deepNestedTupleTypeInfo.getFlatFields("*").get(1).getPosition());
		assertEquals(2, deepNestedTupleTypeInfo.getFlatFields("*").get(2).getPosition());
		assertEquals(3, deepNestedTupleTypeInfo.getFlatFields("*").get(3).getPosition());
		assertEquals(4, deepNestedTupleTypeInfo.getFlatFields("*").get(4).getPosition());

		assertEquals(0, pojoTypeInfo.getFlatFields("a").get(0).getPosition());
		assertEquals(1, pojoTypeInfo.getFlatFields("b").get(0).getPosition());
		assertEquals(2, pojoTypeInfo.getFlatFields("*").size());
		assertEquals(0, pojoTypeInfo.getFlatFields("*").get(0).getPosition());
		assertEquals(1, pojoTypeInfo.getFlatFields("*").get(1).getPosition());

		assertEquals(1, pojoInTupleTypeInfo.getFlatFields("f1.a").get(0).getPosition());
		assertEquals(2, pojoInTupleTypeInfo.getFlatFields("1.b").get(0).getPosition());
		assertEquals(2, pojoInTupleTypeInfo.getFlatFields("1").size());
		assertEquals(1, pojoInTupleTypeInfo.getFlatFields("1.*").get(0).getPosition());
		assertEquals(2, pojoInTupleTypeInfo.getFlatFields("1").get(1).getPosition());
		assertEquals(2, pojoInTupleTypeInfo.getFlatFields("f1.*").size());
		assertEquals(1, pojoInTupleTypeInfo.getFlatFields("f1.*").get(0).getPosition());
		assertEquals(2, pojoInTupleTypeInfo.getFlatFields("f1").get(1).getPosition());
		assertEquals(3, pojoInTupleTypeInfo.getFlatFields("*").size());
		assertEquals(0, pojoInTupleTypeInfo.getFlatFields("*").get(0).getPosition());
		assertEquals(1, pojoInTupleTypeInfo.getFlatFields("*").get(1).getPosition());
		assertEquals(2, pojoInTupleTypeInfo.getFlatFields("*").get(2).getPosition());

	}

	@Test
	public void testFieldAtStringRef() {

		assertEquals(BasicTypeInfo.INT_TYPE_INFO, tupleTypeInfo.getTypeAt("0"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, tupleTypeInfo.getTypeAt("2"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, tupleTypeInfo.getTypeAt("f1"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, tupleTypeInfo.getTypeAt("f3"));

		assertEquals(BasicTypeInfo.INT_TYPE_INFO, nestedTypeInfo.getTypeAt("0"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, nestedTypeInfo.getTypeAt("1.0"));
		assertEquals(BasicTypeInfo.STRING_TYPE_INFO, nestedTypeInfo.getTypeAt("1.1"));
		assertEquals(BasicTypeInfo.LONG_TYPE_INFO, nestedTypeInfo.getTypeAt("1.2"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, nestedTypeInfo.getTypeAt("2"));
		assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO, nestedTypeInfo.getTypeAt("3.0"));
		assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO, nestedTypeInfo.getTypeAt("3.1"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, nestedTypeInfo.getTypeAt("f2"));
		assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO, nestedTypeInfo.getTypeAt("f3.f0"));
		assertEquals(inNestedTuple1, nestedTypeInfo.getTypeAt("1"));
		assertEquals(inNestedTuple2, nestedTypeInfo.getTypeAt("3"));
		assertEquals(inNestedTuple1, nestedTypeInfo.getTypeAt("f1"));
		assertEquals(inNestedTuple2, nestedTypeInfo.getTypeAt("f3"));

		assertEquals(inNestedTuple3, deepNestedTupleTypeInfo.getTypeAt("1"));

		assertEquals(BasicTypeInfo.STRING_TYPE_INFO, pojoTypeInfo.getTypeAt("a"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, pojoTypeInfo.getTypeAt("b"));

		assertEquals(BasicTypeInfo.STRING_TYPE_INFO, pojoInTupleTypeInfo.getTypeAt("f1.a"));
		assertEquals(BasicTypeInfo.INT_TYPE_INFO, pojoInTupleTypeInfo.getTypeAt("1.b"));
		assertEquals(pojoTypeInfo, pojoInTupleTypeInfo.getTypeAt("1"));
		assertEquals(pojoTypeInfo, pojoInTupleTypeInfo.getTypeAt("f1"));

	}

	public static class MyPojo {
		public String a;
		public int b;
	}

}