| /* |
| * 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.java.typeutils; |
| |
| import java.io.IOException; |
| |
| import org.apache.flink.api.common.io.DefaultInputSplitAssigner; |
| import org.apache.flink.api.common.io.GenericInputFormat; |
| import org.apache.flink.api.common.io.InputFormat; |
| import org.apache.flink.api.common.io.statistics.BaseStatistics; |
| import org.apache.flink.api.common.typeinfo.BasicTypeInfo; |
| import org.apache.flink.api.common.typeinfo.TypeInformation; |
| import org.apache.flink.api.java.tuple.Tuple3; |
| import org.apache.flink.configuration.Configuration; |
| import org.apache.flink.core.io.InputSplit; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.*; |
| |
| @SuppressWarnings("serial") |
| public class TypeExtractorInputFormatsTest { |
| |
| @Test |
| public void testExtractInputFormatType() { |
| try { |
| InputFormat<?, ?> format = new DummyFloatInputFormat(); |
| TypeInformation<?> typeInfo = TypeExtractor.getInputFormatTypes(format); |
| assertEquals(BasicTypeInfo.FLOAT_TYPE_INFO, typeInfo); |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.getMessage()); |
| } |
| } |
| |
| @Test |
| public void testExtractDerivedInputFormatType() { |
| try { |
| // simple type |
| { |
| InputFormat<?, ?> format = new DerivedInputFormat(); |
| TypeInformation<?> typeInfo = TypeExtractor.getInputFormatTypes(format); |
| assertEquals(BasicTypeInfo.SHORT_TYPE_INFO, typeInfo); |
| } |
| |
| // composite type |
| { |
| InputFormat<?, ?> format = new DerivedTupleInputFormat(); |
| TypeInformation<?> typeInfo = TypeExtractor.getInputFormatTypes(format); |
| |
| assertTrue(typeInfo.isTupleType()); |
| assertTrue(typeInfo instanceof TupleTypeInfo); |
| |
| @SuppressWarnings("unchecked") |
| TupleTypeInfo<Tuple3<String, Short, Double>> tupleInfo = (TupleTypeInfo<Tuple3<String, Short, Double>>) typeInfo; |
| |
| assertEquals(3, tupleInfo.getArity()); |
| assertEquals(BasicTypeInfo.STRING_TYPE_INFO, tupleInfo.getTypeAt(0)); |
| assertEquals(BasicTypeInfo.SHORT_TYPE_INFO, tupleInfo.getTypeAt(1)); |
| assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO, tupleInfo.getTypeAt(2)); |
| } |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.getMessage()); |
| } |
| } |
| |
| @Test |
| public void testMultiLevelDerivedInputFormatType() { |
| try { |
| |
| // composite type |
| { |
| InputFormat<?, ?> format = new FinalRelativeInputFormat(); |
| TypeInformation<?> typeInfo = TypeExtractor.getInputFormatTypes(format); |
| |
| assertTrue(typeInfo.isTupleType()); |
| assertTrue(typeInfo instanceof TupleTypeInfo); |
| |
| @SuppressWarnings("unchecked") |
| TupleTypeInfo<Tuple3<String, Integer, Double>> tupleInfo = (TupleTypeInfo<Tuple3<String, Integer, Double>>) typeInfo; |
| |
| assertEquals(3, tupleInfo.getArity()); |
| assertEquals(BasicTypeInfo.STRING_TYPE_INFO, tupleInfo.getTypeAt(0)); |
| assertEquals(BasicTypeInfo.INT_TYPE_INFO, tupleInfo.getTypeAt(1)); |
| assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO, tupleInfo.getTypeAt(2)); |
| } |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.getMessage()); |
| } |
| } |
| |
| @Test |
| public void testQueryableFormatType() { |
| try { |
| InputFormat<?, ?> format = new QueryableInputFormat(); |
| TypeInformation<?> typeInfo = TypeExtractor.getInputFormatTypes(format); |
| assertEquals(BasicTypeInfo.DOUBLE_TYPE_INFO, typeInfo); |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.getMessage()); |
| } |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| // Test formats |
| // -------------------------------------------------------------------------------------------- |
| |
| public static final class DummyFloatInputFormat implements InputFormat<Float, InputSplit> { |
| |
| @Override |
| public void configure(Configuration parameters) {} |
| |
| @Override |
| public BaseStatistics getStatistics(BaseStatistics cachedStatistics) { return null; } |
| |
| @Override |
| public InputSplit[] createInputSplits(int minNumSplits) { return null; } |
| |
| @Override |
| public DefaultInputSplitAssigner getInputSplitAssigner(InputSplit[] splits) { return null; } |
| |
| @Override |
| public void open(InputSplit split) {} |
| |
| @Override |
| public boolean reachedEnd() { return false; } |
| |
| @Override |
| public Float nextRecord(Float reuse) throws IOException { return null; } |
| |
| @Override |
| public void close() {} |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| public static final class DerivedInputFormat extends GenericInputFormat<Short> { |
| |
| @Override |
| public boolean reachedEnd() { return false; } |
| |
| @Override |
| public Short nextRecord(Short reuse) { return null; } |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| public static final class DerivedTupleInputFormat extends GenericInputFormat<Tuple3<String, Short, Double>> { |
| |
| @Override |
| public boolean reachedEnd() { return false; } |
| |
| @Override |
| public Tuple3<String, Short, Double> nextRecord(Tuple3<String, Short, Double> reuse) { return null; } |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| public static class RelativeInputFormat<T> extends GenericInputFormat<Tuple3<String, T, Double>> { |
| |
| @Override |
| public boolean reachedEnd() { return false; } |
| |
| @Override |
| public Tuple3<String, T, Double> nextRecord(Tuple3<String, T, Double> reuse) { return null; } |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| public static final class FinalRelativeInputFormat extends RelativeInputFormat<Integer> { |
| |
| @Override |
| public Tuple3<String, Integer, Double> nextRecord(Tuple3<String, Integer, Double> reuse) { return null; } |
| } |
| |
| // -------------------------------------------------------------------------------------------- |
| |
| public static final class QueryableInputFormat implements InputFormat<Float, InputSplit>, ResultTypeQueryable<Double> { |
| |
| @Override |
| public void configure(Configuration parameters) {} |
| |
| @Override |
| public BaseStatistics getStatistics(BaseStatistics cachedStatistics) { return null; } |
| |
| @Override |
| public InputSplit[] createInputSplits(int minNumSplits) { return null; } |
| |
| @Override |
| public DefaultInputSplitAssigner getInputSplitAssigner(InputSplit[] splits) { return null; } |
| |
| @Override |
| public void open(InputSplit split) {} |
| |
| @Override |
| public boolean reachedEnd() { return false; } |
| |
| @Override |
| public Float nextRecord(Float reuse) throws IOException { return null; } |
| |
| @Override |
| public void close() {} |
| |
| @Override |
| public TypeInformation<Double> getProducedType() { |
| return BasicTypeInfo.DOUBLE_TYPE_INFO; |
| } |
| } |
| } |