Java Code Examples for org.apache.parquet.hadoop.ParquetOutputFormat#setWriteSupportClass()

The following examples show how to use org.apache.parquet.hadoop.ParquetOutputFormat#setWriteSupportClass() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: ParquetTupleScheme.java From parquet-mr with Apache License 2.0

5 votes

@SuppressWarnings("rawtypes")
@Override
public void sinkConfInit(FlowProcess<JobConf> fp,
        Tap<JobConf, RecordReader, OutputCollector> tap, JobConf jobConf) {
  DeprecatedParquetOutputFormat.setAsOutputFormat(jobConf);
  jobConf.set(TupleWriteSupport.PARQUET_CASCADING_SCHEMA, parquetSchema);
  ParquetOutputFormat.setWriteSupportClass(jobConf, TupleWriteSupport.class);
}

Example 2

Source File: ParquetScroogeScheme.java From parquet-mr with Apache License 2.0

5 votes

@Override
public void sinkConfInit(FlowProcess<JobConf> fp,
    Tap<JobConf, RecordReader, OutputCollector> tap, JobConf jobConf) {
  DeprecatedParquetOutputFormat.setAsOutputFormat(jobConf);
  ParquetOutputFormat.setWriteSupportClass(jobConf, ScroogeWriteSupport.class);
  ScroogeWriteSupport.setScroogeClass(jobConf, this.config.getKlass());
}

Example 3

Source File: ParquetTupleScheme.java From parquet-mr with Apache License 2.0

5 votes

@SuppressWarnings("rawtypes")
@Override
public void sinkConfInit(FlowProcess<? extends JobConf> fp,
        Tap<JobConf, RecordReader, OutputCollector> tap, JobConf jobConf) {
  DeprecatedParquetOutputFormat.setAsOutputFormat(jobConf);
  jobConf.set(TupleWriteSupport.PARQUET_CASCADING_SCHEMA, parquetSchema);
  ParquetOutputFormat.setWriteSupportClass(jobConf, TupleWriteSupport.class);
}

Example 4

Source File: TestInputOutputFormat.java From parquet-mr with Apache License 2.0

4 votes

private void runMapReduceJob(CompressionCodecName codec, Map<String, String> extraConf) throws IOException, ClassNotFoundException, InterruptedException {
  Configuration conf = new Configuration(this.conf);
  for (Map.Entry<String, String> entry : extraConf.entrySet()) {
    conf.set(entry.getKey(), entry.getValue());
  }
  final FileSystem fileSystem = parquetPath.getFileSystem(conf);
  fileSystem.delete(parquetPath, true);
  fileSystem.delete(outputPath, true);
  {
    writeJob = new Job(conf, "write");
    TextInputFormat.addInputPath(writeJob, inputPath);
    writeJob.setInputFormatClass(TextInputFormat.class);
    writeJob.setNumReduceTasks(0);
    ParquetOutputFormat.setCompression(writeJob, codec);
    ParquetOutputFormat.setOutputPath(writeJob, parquetPath);
    writeJob.setOutputFormatClass(ParquetOutputFormat.class);
    writeJob.setMapperClass(readMapperClass);

    ParquetOutputFormat.setWriteSupportClass(writeJob, MyWriteSupport.class);
    GroupWriteSupport.setSchema(
            MessageTypeParser.parseMessageType(writeSchema),
            writeJob.getConfiguration());
    writeJob.submit();
    waitForJob(writeJob);
  }
  {
    conf.set(ReadSupport.PARQUET_READ_SCHEMA, readSchema);
    readJob = new Job(conf, "read");

    readJob.setInputFormatClass(ParquetInputFormat.class);
    ParquetInputFormat.setReadSupportClass(readJob, MyReadSupport.class);

    ParquetInputFormat.setInputPaths(readJob, parquetPath);
    readJob.setOutputFormatClass(TextOutputFormat.class);
    TextOutputFormat.setOutputPath(readJob, outputPath);
    readJob.setMapperClass(writeMapperClass);
    readJob.setNumReduceTasks(0);
    readJob.submit();
    waitForJob(readJob);
  }
}