use of io.prestosql.rcfile.AircompressorCodecFactory in project hetu-core by openlookeng.
the class RcFilePageSourceFactory method createPageSource.
@Override
public Optional<? extends ConnectorPageSource> createPageSource(Configuration configuration, ConnectorSession session, Path path, long start, long length, long fileSize, Properties schema, List<HiveColumnHandle> columns, TupleDomain<HiveColumnHandle> effectivePredicate, Optional<DynamicFilterSupplier> dynamicFilters, Optional<DeleteDeltaLocations> deleteDeltaLocations, Optional<Long> startRowOffsetOfFile, Optional<List<IndexMetadata>> indexes, SplitMetadata splitMetadata, boolean splitCacheable, long dataSourceLastModifiedTime) {
RcFileEncoding rcFileEncoding;
String deserializerClassName = getDeserializerClassName(schema);
if (deserializerClassName.equals(LazyBinaryColumnarSerDe.class.getName())) {
rcFileEncoding = new BinaryRcFileEncoding(timeZone);
} else if (deserializerClassName.equals(ColumnarSerDe.class.getName())) {
rcFileEncoding = createTextVectorEncoding(schema);
} else {
return Optional.empty();
}
checkArgument(!deleteDeltaLocations.isPresent(), "Delete delta is not supported");
if (fileSize == 0) {
throw new PrestoException(HIVE_BAD_DATA, "RCFile is empty: " + path);
}
FSDataInputStream inputStream;
try {
FileSystem fileSystem = hdfsEnvironment.getFileSystem(session.getUser(), path, configuration);
inputStream = hdfsEnvironment.doAs(session.getUser(), () -> fileSystem.open(path));
} catch (Exception e) {
if (nullToEmpty(e.getMessage()).trim().equals("Filesystem closed") || e instanceof FileNotFoundException) {
throw new PrestoException(HIVE_CANNOT_OPEN_SPLIT, e);
}
throw new PrestoException(HIVE_CANNOT_OPEN_SPLIT, splitError(e, path, start, length), e);
}
try {
ImmutableMap.Builder<Integer, Type> readColumns = ImmutableMap.builder();
for (HiveColumnHandle column : columns) {
readColumns.put(column.getHiveColumnIndex(), column.getHiveType().getType(typeManager));
}
RcFileReader rcFileReader = new RcFileReader(new HdfsRcFileDataSource(path.toString(), inputStream, fileSize, stats), rcFileEncoding, readColumns.build(), new AircompressorCodecFactory(new HadoopCodecFactory(configuration.getClassLoader())), start, length, new DataSize(8, Unit.MEGABYTE));
return Optional.of(new RcFilePageSource(rcFileReader, columns, typeManager));
} catch (Throwable e) {
try {
inputStream.close();
} catch (IOException ignored) {
}
if (e instanceof PrestoException) {
throw (PrestoException) e;
}
String message = splitError(e, path, start, length);
if (e instanceof RcFileCorruptionException) {
throw new PrestoException(HIVE_BAD_DATA, message, e);
}
if (e instanceof BlockMissingException) {
throw new PrestoException(HIVE_MISSING_DATA, message, e);
}
throw new PrestoException(HIVE_CANNOT_OPEN_SPLIT, message, e);
}
}
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