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 LocalDate	START_OF_MODERN_ERA

Method Summary

Modifier and Type	Method	Description
static Object	deserializeColumnValue(DeltaLakeColumnHandle column, String valueString, Function<String,Long> timestampReader)
static Object	deserializePartitionValue(DeltaLakeColumnHandle column, Optional<String> valueString)
static long	getMandatoryCurrentVersion(TrinoFileSystem fileSystem, org.apache.hadoop.fs.Path 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

public static final LocalDate START_OF_MODERN_ERA

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)
                                              throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

deserializePartitionValue

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

deserializeColumnValue

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

getMandatoryCurrentVersion

public static long getMandatoryCurrentVersion(TrinoFileSystem fileSystem,
 org.apache.hadoop.fs.Path tableLocation)
                                       throws IOException

Throws:

IOException