content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.job.plan.transform.format;
  
  import static org.junit.Assert.assertEquals;
  
  import alluxio.AlluxioURI;
  import alluxio.job.plan.transform.BaseTransformTest;
  import alluxio.job.plan.transform.HiveConstants;
  import alluxio.job.plan.transform.PartitionInfo;
  import alluxio.job.plan.transform.format.parquet.ParquetRow;
  import alluxio.job.plan.transform.format.parquet.ParquetSchema;
  
  import com.google.common.collect.Lists;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  
  import java.io.File;
  import java.nio.file.Files;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  
  /**
   * Tests {@link TableReader} and {@link TableWriter}.
   */
  public final class ReadWriteTest extends BaseTransformTest {
    @Rule
    public TemporaryFolder mTempFolder = new TemporaryFolder();
  
    private PartitionInfo mPartitionInfo = new PartitionInfo(HiveConstants.PARQUET_SERDE_CLASS,
        HiveConstants.PARQUET_INPUT_FORMAT_CLASS, new HashMap<>(), new HashMap<>(),
        new ArrayList<>());
  
    @Test
    public void readWrite() throws Exception {
      final File file = mTempFolder.newFile("test.parquet");
      Files.delete(file.toPath());
      final int numRows = 10;
  
      TableSchema schema = new ParquetSchema(SCHEMA);
      TableRow row = new ParquetRow(RECORD);
      AlluxioURI uri = new AlluxioURI("file:///" + file.getPath());
      try (TableWriter writer = TableWriter.create(schema, uri, mPartitionInfo)) {
        for (int r = 0; r < numRows; r++) {
          writer.write(row);
        }
      }
  
      List<TableRow> rows = Lists.newArrayList();
      uri = new AlluxioURI("file:///" + file.getPath());
      try (TableReader reader = TableReader.create(uri, mPartitionInfo)) {
        assertEquals(schema, reader.getSchema());
        for (TableRow r = reader.read(); r != null; r = reader.read()) {
          rows.add(r);
        }
      }
  
      assertEquals(numRows, rows.size());
      for (TableRow r : rows) {
        assertEquals(row, r);
        for (int i = 0; i < COLUMNS.length; i++) {
          assertEquals(VALUES[i], r.getColumn(COLUMNS[i]));
        }
      }
    }
  }
  