Package io.debezium.connector.cassandra

Class CommitLogUtil

java.lang.Object

io.debezium.connector.cassandra.CommitLogUtil

public final class CommitLogUtil
extends Object

Utility class used by the CommitLogProcessor to compare/delete commit log files.

Field Summary

Fields

Modifier and Type	Field	Description
private static Pattern	FILENAME_INDEX_REGEX_PATTERN
private static Pattern	FILENAME_REGEX_PATTERN
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CommitLogUtil()

Method Summary

Modifier and Type	Method	Description
static int	compareCommitLogs(File file1, File file2)	Comparing two commit log files provided the File instances; Returns 0 if they are the same, -1 if first file is older, 1 if first file is newer.
static int	compareCommitLogs(String file1, String file2)
static int	compareCommitLogsIndexes(File file1, File file2)	Comparing two commit log files provided the File instances; Returns 0 if they are the same, -1 if first file is older, 1 if first file is newer.
static void	deleteCommitLog(File file)	Delete a commit log and logs the error in the case the deletion failed.
private static long	extractTimestamp(String commitLogFileName, Pattern pattern)
static File[]	getCommitLogs(File directory)	Given a directory, return an array of commit logs in this directory.
static File[]	getIndexes(File directory)	Given a directory, return an array of commit logs' marker files in this directory.
static void	moveCommitLog(Path file, Path toDir)	Move a commit log to a new directory.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

FILENAME_REGEX_PATTERN

private static final Pattern FILENAME_REGEX_PATTERN

FILENAME_INDEX_REGEX_PATTERN

private static final Pattern FILENAME_INDEX_REGEX_PATTERN

Constructor Detail

CommitLogUtil

private CommitLogUtil()

Method Detail

moveCommitLog

public static void moveCommitLog(Path file,
                                 Path toDir)

Move a commit log to a new directory. If the commit log already exists in the new directory, it would be replaced.

Throws:

RuntimeException - exception in case moving failed

deleteCommitLog

public static void deleteCommitLog(File file)

Delete a commit log and logs the error in the case the deletion failed.

getCommitLogs

public static File[] getCommitLogs(File directory)

Given a directory, return an array of commit logs in this directory. If the directory does not contain any commit logs, an empty array is returned.

getIndexes

public static File[] getIndexes(File directory)

Given a directory, return an array of commit logs' marker files in this directory. If the directory does not contain any commit logs, an empty array is returned.

compareCommitLogs

public static int compareCommitLogs(File file1,
                                    File file2)

Comparing two commit log files provided the File instances; Returns 0 if they are the same, -1 if first file is older, 1 if first file is newer.

compareCommitLogs

public static int compareCommitLogs(String file1,
                                    String file2)

compareCommitLogsIndexes

public static int compareCommitLogsIndexes(File file1,
                                           File file2)

Comparing two commit log files provided the File instances; Returns 0 if they are the same, -1 if first file is older, 1 if first file is newer.

extractTimestamp

private static long extractTimestamp(String commitLogFileName,
                                     Pattern pattern)