Examples with DataWriter org.apache.spark.sql.connector.write.DataWriter used on opensource projects

Example 1 with DataWriter

use of org.apache.spark.sql.connector.write.DataWriter in project hudi by apache.

the class TestHoodieDataSourceInternalBatchWrite method testDataSourceWriterInternal.

private void testDataSourceWriterInternal(Map<String, String> extraMetadata, Map<String, String> expectedExtraMetadata, boolean populateMetaFields) throws Exception {
    // init config and table
    HoodieWriteConfig cfg = getWriteConfig(populateMetaFields);
    HoodieTable table = HoodieSparkTable.create(cfg, context, metaClient);
    String instantTime = "001";
    // init writer
    HoodieDataSourceInternalBatchWrite dataSourceInternalBatchWrite = new HoodieDataSourceInternalBatchWrite(instantTime, cfg, STRUCT_TYPE, sqlContext.sparkSession(), hadoopConf, extraMetadata, populateMetaFields, false);
    DataWriter<InternalRow> writer = dataSourceInternalBatchWrite.createBatchWriterFactory(null).createWriter(0, RANDOM.nextLong());
    String[] partitionPaths = HoodieTestDataGenerator.DEFAULT_PARTITION_PATHS;
    List<String> partitionPathsAbs = new ArrayList<>();
    for (String partitionPath : partitionPaths) {
        partitionPathsAbs.add(basePath + "/" + partitionPath + "/*");
    }
    int size = 10 + RANDOM.nextInt(1000);
    int batches = 5;
    Dataset<Row> totalInputRows = null;
    for (int j = 0; j < batches; j++) {
        String partitionPath = HoodieTestDataGenerator.DEFAULT_PARTITION_PATHS[j % 3];
        Dataset<Row> inputRows = getRandomRows(sqlContext, size, partitionPath, false);
        writeRows(inputRows, writer);
        if (totalInputRows == null) {
            totalInputRows = inputRows;
        } else {
            totalInputRows = totalInputRows.union(inputRows);
        }
    }
    HoodieWriterCommitMessage commitMetadata = (HoodieWriterCommitMessage) writer.commit();
    List<HoodieWriterCommitMessage> commitMessages = new ArrayList<>();
    commitMessages.add(commitMetadata);
    dataSourceInternalBatchWrite.commit(commitMessages.toArray(new HoodieWriterCommitMessage[0]));
    metaClient.reloadActiveTimeline();
    Dataset<Row> result = HoodieClientTestUtils.read(jsc, basePath, sqlContext, metaClient.getFs(), partitionPathsAbs.toArray(new String[0]));
    // verify output
    assertOutput(totalInputRows, result, instantTime, Option.empty(), populateMetaFields);
    assertWriteStatuses(commitMessages.get(0).getWriteStatuses(), batches, size, Option.empty(), Option.empty());
    // verify extra metadata
    Option<HoodieCommitMetadata> commitMetadataOption = HoodieClientTestUtils.getCommitMetadataForLatestInstant(metaClient);
    assertTrue(commitMetadataOption.isPresent());
    Map<String, String> actualExtraMetadata = new HashMap<>();
    commitMetadataOption.get().getExtraMetadata().entrySet().stream().filter(entry -> !entry.getKey().equals(HoodieCommitMetadata.SCHEMA_KEY)).forEach(entry -> actualExtraMetadata.put(entry.getKey(), entry.getValue()));
    assertEquals(actualExtraMetadata, expectedExtraMetadata);
}