content: /*
   * 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.carbondata.sdk.file;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Objects;
  
  import org.apache.carbondata.common.exceptions.sql.InvalidLoadOptionException;
  import org.apache.commons.io.FileUtils;
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Test suite for {@link ParquetCarbonWriter}
   */
  public class ParquetCarbonWriterTest {
    String DATA_PATH = "./src/test/resources/file/";
    String outputPath = "./testWriteFiles";
  
    @Before
    @After
    public void cleanTestData() {
      try {
        FileUtils.deleteDirectory(new File(outputPath));
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  
    private void loadParquetFile(String filePath) throws IOException, InvalidLoadOptionException {
      CarbonWriterBuilder carbonWriterBuilder = new CarbonWriterBuilder();
      CarbonWriter carbonWriter = carbonWriterBuilder.withParquetPath(filePath).outputPath(outputPath)
          .writtenBy("ParquetCarbonWriterTest").build();
      carbonWriter.write();
      carbonWriter.close();
      File[] dataFiles = new File(outputPath).listFiles();
      assert (Objects.requireNonNull(dataFiles).length == 2);
    }
  
    @Test
    public void testParquetFileLoadWithNestedMap() throws IOException, InvalidLoadOptionException {
      String filePath = DATA_PATH + "NestedMap.parquet";
      loadParquetFile(filePath);
    }
  
    @Test
    public void testParquetFileLoadWithMixSchema() throws IOException, InvalidLoadOptionException {
      String filePath = DATA_PATH + "parquet_files/file1.parquet";
     loadParquetFile(filePath);
    }
  
    @Test
    public void testParquetFileWithInt96() throws IOException, InvalidLoadOptionException {
      String filePath = DATA_PATH + "userdata1.parquet";
      CarbonWriterBuilder carbonWriterBuilder = new CarbonWriterBuilder();
      try {
        carbonWriterBuilder.withParquetPath(filePath).outputPath(outputPath)
            .writtenBy("ParquetFileLoader").build();
      } catch (IllegalArgumentException e) {
        Assert.assertEquals("INT96 not implemented and is deprecated", e.getMessage());
      }
    }
  
    @Test
    public void testParquetFileWithRepeatedSchema() throws IOException, InvalidLoadOptionException {
      String filePath = DATA_PATH + "repeated-schema.parquet";
      CarbonWriterBuilder carbonWriterBuilder = new CarbonWriterBuilder();
      try {
        carbonWriterBuilder.withParquetPath(filePath).outputPath(outputPath)
            .writtenBy("ParquetCarbonWriterTest").build();
      } catch (UnsupportedOperationException e) {
        assert (e.getMessage().contains("REPEATED not supported outside LIST or MAP."));
      }
    }
  
    private int buildCarbonReaderAndFetchRecord() throws IOException, InterruptedException {
      CarbonReader reader = CarbonReader
          .builder(outputPath, "_temp")
          .projection(new String[]{"file"})
          .build();
      int rowCount = 0;
      while (reader.hasNext()) {
        Object[] row = (Object[]) reader.readNextRow();
        Assert.assertEquals(((Object[]) row[0])[0], "file1.parquet");
        rowCount++;
      }
      reader.close();
      return rowCount;
    }
  
    @Test
    public void testParquetLoadAndCarbonRead() throws Exception {
      String filePath = DATA_PATH + "parquet_files/file1.parquet";
      loadParquetFile(filePath);
      int i = buildCarbonReaderAndFetchRecord();
      Assert.assertEquals(i, 1);
    }
  
    @Test
    public void testMultipeParquetFileLoad() throws IOException, InvalidLoadOptionException, InterruptedException {
      String filePath = DATA_PATH + "parquet_files";
      loadParquetFile(filePath);
      int numberOfRow = buildCarbonReaderAndFetchRecord();
      Assert.assertEquals(numberOfRow, 3);
    }
  
    @Test
    public void testSelectedParquetFileLoadInDirectory() throws IOException, InvalidLoadOptionException, InterruptedException {
      String filePath = DATA_PATH + "parquet_files";
      CarbonWriterBuilder carbonWriterBuilder = new CarbonWriterBuilder();
      List<String> fileList = new ArrayList<>();
      fileList.add("file1.parquet");
      fileList.add("file3.parquet");
      CarbonWriter carbonWriter = carbonWriterBuilder.withParquetPath(filePath, fileList)
          .outputPath(outputPath).writtenBy("ParquetCarbonWriterTest").build();
      carbonWriter.write();
      carbonWriter.close();
      File[] dataFiles = new File(outputPath).listFiles();
      assert (Objects.requireNonNull(dataFiles).length == 2);
  
      int numberOfRow = buildCarbonReaderAndFetchRecord();
      Assert.assertEquals(numberOfRow, 2);
    }
  }
  