Examples with CsvRecordGrouper gov.cms.bfd.pipeline.ccw.rif.extract.CsvRecordGroupingIterator.CsvRecordGrouper used on opensource projects

Example 1 with CsvRecordGrouper

use of gov.cms.bfd.pipeline.ccw.rif.extract.CsvRecordGroupingIterator.CsvRecordGrouper in project beneficiary-fhir-data by CMSgov.

the class RifFilesProcessor method produceRecords.

/**
 * @param rifFileEvent the {@link RifFileEvent} that is being processed
 * @return a {@link RifFileRecords} with the {@link RifRecordEvent}s produced from the specified
 *     {@link RifFileEvent}
 */
public RifFileRecords produceRecords(RifFileEvent rifFileEvent) {
    RifFile file = rifFileEvent.getFile();
    /*
     * Approach used here to parse CSV as a Java 8 Stream is courtesy of
     * https://rumianom.pl/rumianom/entry/apache-commons-csv-with-java.
     */
    CSVParser parser = RifParsingUtils.createCsvParser(file);
    boolean isGrouped;
    BiFunction<RifFileEvent, List<CSVRecord>, RifRecordEvent<?>> recordParser;
    if (file.getFileType() == RifFileType.BENEFICIARY) {
        isGrouped = false;
        recordParser = RifFilesProcessor::buildBeneficiaryEvent;
    } else if (file.getFileType() == RifFileType.BENEFICIARY_HISTORY) {
        isGrouped = false;
        recordParser = RifFilesProcessor::buildBeneficiaryHistoryEvent;
    } else if (file.getFileType() == RifFileType.MEDICARE_BENEFICIARY_ID_HISTORY) {
        isGrouped = false;
        recordParser = RifFilesProcessor::buildMedicareBeneficiaryIdHistoryEvent;
    } else if (file.getFileType() == RifFileType.PDE) {
        isGrouped = false;
        recordParser = RifFilesProcessor::buildPartDEvent;
    } else if (file.getFileType() == RifFileType.CARRIER) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildCarrierClaimEvent;
    } else if (file.getFileType() == RifFileType.INPATIENT) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildInpatientClaimEvent;
    } else if (file.getFileType() == RifFileType.OUTPATIENT) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildOutpatientClaimEvent;
    } else if (file.getFileType() == RifFileType.SNF) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildSNFClaimEvent;
    } else if (file.getFileType() == RifFileType.HOSPICE) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildHospiceClaimEvent;
    } else if (file.getFileType() == RifFileType.HHA) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildHHAClaimEvent;
    } else if (file.getFileType() == RifFileType.DME) {
        isGrouped = true;
        recordParser = RifFilesProcessor::buildDMEClaimEvent;
    } else {
        throw new UnsupportedRifFileTypeException("Unsupported file type:" + file.getFileType());
    }
    /*
     * Use the CSVParser to drive a Stream of grouped CSVRecords
     * (specifically, group by claim ID/lines).
     */
    CsvRecordGrouper grouper = new ColumnValueCsvRecordGrouper(isGrouped ? file.getFileType().getIdColumn() : null);
    Iterator<List<CSVRecord>> csvIterator = new CsvRecordGroupingIterator(parser, grouper);
    Spliterator<List<CSVRecord>> spliterator = Spliterators.spliteratorUnknownSize(csvIterator, Spliterator.ORDERED | Spliterator.NONNULL);
    Stream<List<CSVRecord>> csvRecordStream = StreamSupport.stream(spliterator, false).onClose(() -> {
        try {
            /*
                     * This will also close the Reader and InputStream that the
                     * CSVParser was consuming.
                     */
            parser.close();
        } catch (IOException e) {
            LOGGER.warn("Unable to close CSVParser", e);
        }
    });
    /* Map each record group to a single RifRecordEvent. */
    Stream<RifRecordEvent<?>> rifRecordStream = csvRecordStream.map(csvRecordGroup -> {
        try {
            Timer.Context parsingTimer = rifFileEvent.getEventMetrics().timer(MetricRegistry.name(getClass().getSimpleName(), "recordParsing")).time();
            RifRecordEvent<?> recordEvent = recordParser.apply(rifFileEvent, csvRecordGroup);
            parsingTimer.close();
            return recordEvent;
        } catch (InvalidRifValueException e) {
            LOGGER.warn("Parse error encountered near line number '{}'.", csvRecordGroup.get(0).getRecordNumber());
            throw new InvalidRifValueException(e);
        }
    });
    return new RifFileRecords(rifFileEvent, rifRecordStream);
}