Package io.trino.plugin.deltalake.transactionlog

Class TransactionLogParser

java.lang.Object

io.trino.plugin.deltalake.transactionlog.TransactionLogParser

public final class TransactionLogParser
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final DateTimeFormatter	JSON_STATISTICS_TIMESTAMP_FORMATTER
static final String	LAST_CHECKPOINT_FILENAME
static final DateTimeFormatter	PARTITION_TIMESTAMP_FORMATTER
static final long	START_OF_MODERN_ERA_EPOCH_DAY
static final long	START_OF_MODERN_ERA_EPOCH_MICROS

Method Summary

Modifier and Type	Method	Description
static Object	deserializeColumnValue(DeltaLakeColumnHandle column, String valueString, Function<String,Long> timestampReader, Function<String,Long> timestampWithZoneReader)
static Object	deserializePartitionValue(DeltaLakeColumnHandle column, Optional<String> valueString)
static long	getMandatoryCurrentVersion(TrinoFileSystem fileSystem, String tableLocation)
static DeltaLakeTransactionLogEntry	parseJson(String json)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

START_OF_MODERN_ERA_EPOCH_DAY

public static final long START_OF_MODERN_ERA_EPOCH_DAY

START_OF_MODERN_ERA_EPOCH_MICROS

public static final long START_OF_MODERN_ERA_EPOCH_MICROS

LAST_CHECKPOINT_FILENAME

public static final String LAST_CHECKPOINT_FILENAME

See Also:

• Constant Field Values

PARTITION_TIMESTAMP_FORMATTER

public static final DateTimeFormatter PARTITION_TIMESTAMP_FORMATTER

JSON_STATISTICS_TIMESTAMP_FORMATTER

public static final DateTimeFormatter JSON_STATISTICS_TIMESTAMP_FORMATTER

Method Details

parseJson

public static DeltaLakeTransactionLogEntry parseJson(String json)

deserializePartitionValue

@Nullable
public static Object deserializePartitionValue(DeltaLakeColumnHandle column,
 Optional<String> valueString)

deserializeColumnValue

public static Object deserializeColumnValue(DeltaLakeColumnHandle column,
 String valueString,
 Function<String,Long> timestampReader,
 Function<String,Long> timestampWithZoneReader)

getMandatoryCurrentVersion

public static long getMandatoryCurrentVersion(TrinoFileSystem fileSystem,
 String tableLocation)
                                       throws IOException

Throws:

IOException