flink-java/src/test/java/org/apache/flink/api/common/io/SerializedFormatTest.java

/*
 * 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.io;

import org.apache.flink.configuration.Configuration;
import org.apache.flink.core.fs.FileSystem;
import org.apache.flink.core.fs.Path;
import org.apache.flink.core.memory.DataOutputView;
import org.apache.flink.types.IntValue;
import org.apache.flink.types.Record;
import org.apache.flink.types.StringValue;

import org.junit.Assert;
import org.junit.Before;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

import java.io.IOException;

/**
 * Tests for serialized formats.
 */
@RunWith(Parameterized.class)
public class SerializedFormatTest extends SequentialFormatTestBase<Record> {

	private BlockInfo info;

	public SerializedFormatTest(int numberOfRecords, long blockSize, int parallelism){
		super(numberOfRecords, blockSize, parallelism);
	}

	@Before
	public void setup(){
		info = createInputFormat().createBlockInfo();
	}

	@Override
	protected BinaryInputFormat<Record> createInputFormat() {
		Configuration configuration = new Configuration();

		final SerializedInputFormat<Record> inputFormat = new SerializedInputFormat<Record>();
		inputFormat.setFilePath(this.tempFile.toURI().toString());
		inputFormat.setBlockSize(this.blockSize);

		inputFormat.configure(configuration);
		return inputFormat;
	}

	@Override
	protected BinaryOutputFormat<Record> createOutputFormat(String path, Configuration configuration)
			throws IOException {
		final SerializedOutputFormat<Record> outputFormat = new SerializedOutputFormat<Record>();
		outputFormat.setOutputFilePath(new Path(path));
		outputFormat.setWriteMode(FileSystem.WriteMode.OVERWRITE);

		configuration = configuration == null ? new Configuration() : configuration;
		outputFormat.configure(configuration);
		outputFormat.open(0, 1);
		return outputFormat;
	}

	@Override
	protected int getInfoSize() {
		return info.getInfoSize();
	}

	@Override
	protected Record getRecord(int index) {
		return new Record(new IntValue(index), new StringValue(String.valueOf(index)));
	}

	@Override
	protected Record createInstance() {
		return new Record();
	}

	@Override
	protected void writeRecord(Record record, DataOutputView outputView) throws IOException{
		record.write(outputView);
	}

	@Override
	protected void checkEquals(Record expected, Record actual) {
		Assert.assertEquals(expected.getNumFields(), actual.getNumFields());
		Assert.assertEquals(expected.getField(0, IntValue.class), actual.getField(0, IntValue.class));
		Assert.assertEquals(expected.getField(1, StringValue.class), actual.getField(1, StringValue.class));
	}
}