/**
 * Licensed 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.hadoop.hive.ql.io.parquet;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import static org.mockito.Mockito.mock;

import java.io.IOException;
import java.util.Properties;

import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriteSupport;
import org.apache.hadoop.hive.ql.io.parquet.write.ParquetRecordWriterWrapper;
import org.apache.hadoop.hive.serde2.io.ParquetHiveRecord;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.util.Progressable;
import org.junit.Test;

import org.apache.parquet.hadoop.ParquetOutputFormat;

public class TestMapredParquetOutputFormat {

  @Test
  public void testConstructor() {
    new MapredParquetOutputFormat();
  }

  @SuppressWarnings("unchecked")
  @Test
  public void testConstructorWithFormat() {
    new MapredParquetOutputFormat((ParquetOutputFormat<ParquetHiveRecord>) mock(ParquetOutputFormat.class));
  }

  @Test
  public void testGetRecordWriterThrowsException() {
    try {
      new MapredParquetOutputFormat().getRecordWriter(null, null, null, null);
      fail("should throw runtime exception.");
    } catch (Exception e) {
      assertEquals("Should never be used", e.getMessage());
    }
  }

  @SuppressWarnings("unchecked")
  @Test
  public void testGetHiveRecordWriter() throws IOException {
    Properties tableProps = new Properties();
    tableProps.setProperty("columns", "foo,bar");
    tableProps.setProperty("columns.types", "int:int");

    final Progressable mockProgress = mock(Progressable.class);
    final ParquetOutputFormat<ParquetHiveRecord> outputFormat = (ParquetOutputFormat<ParquetHiveRecord>) mock(ParquetOutputFormat.class);

    JobConf jobConf = new JobConf();

    try {
      new MapredParquetOutputFormat(outputFormat) {
        @Override
        protected ParquetRecordWriterWrapper getParquerRecordWriterWrapper(
            ParquetOutputFormat<ParquetHiveRecord> realOutputFormat,
            JobConf jobConf,
            String finalOutPath,
            Progressable progress,
            Properties tableProperties
            ) throws IOException {
          assertEquals(outputFormat, realOutputFormat);
          assertNotNull(jobConf.get(DataWritableWriteSupport.PARQUET_HIVE_SCHEMA));
          assertEquals("/foo", finalOutPath.toString());
          assertEquals(mockProgress, progress);
          throw new RuntimeException("passed tests");
        }
      }.getHiveRecordWriter(jobConf, new Path("/foo"), null, false, tableProps, mockProgress);
      fail("should throw runtime exception.");
    } catch (RuntimeException e) {
      assertEquals("passed tests", e.getMessage());
    }
  }

  @Test(expected = IllegalArgumentException.class)
  public void testInvalidCompressionTableProperties() throws IOException {
    Properties tableProps = new Properties();
    tableProps.setProperty("parquet.compression", "unsupported");
    tableProps.setProperty("columns", "foo,bar");
    tableProps.setProperty("columns.types", "int:int");

    JobConf jobConf = new JobConf();

    new MapredParquetOutputFormat().getHiveRecordWriter(jobConf,
            new Path("/foo"), null, false, tableProps, null);
  }
}