org.apache.iotdb.tsfile.utils

Class FilePathUtils

java.lang.Object

org.apache.iotdb.tsfile.utils.FilePathUtils

public class FilePathUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	FILE_NAME_SEPARATOR

Method Summary

Modifier and Type	Method and Description
static String	getDataRegionId(String tsFileAbsolutePath)
static Pair<String,Long>	getLogicalSgNameAndTimePartitionIdPair(String tsFileAbsolutePath)
static String	getLogicalStorageGroupName(String tsFileAbsolutePath)
static long	getTimePartitionId(String tsFileAbsolutePath)
static String	getTsFileNameWithoutHardLink(String tsFileAbsolutePath)
static String	getTsFilePrefixPath(String tsFileAbsolutePath)
static Pair<String,long[]>	getTsFilePrefixPathAndTsFileVersionPair(String tsFileAbsolutePath) pair.left tsFilePrefixPath, like data/data/sequence/root.sg1/0/0 pair.right is a long array whose length is 2 pair.right[0] is tsfile version pair.right[1] is compaction version, high 32 bit is compaction level, low 32 bit is merge count
static String	regularizePath(String filePath) Format file path to end with File.separator
static long	splitAndGetTsFileVersion(String tsFileName)
static String[]	splitTsFilePath(String tsFileAbsolutePath) IMPORTANT, when the path of TsFile changes, the following methods should be changed accordingly.

Methods inherited from class java.lang.Object

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

Field Detail

FILE_NAME_SEPARATOR

public static final String FILE_NAME_SEPARATOR

See Also:

Constant Field Values

Method Detail

regularizePath

public static String regularizePath(String filePath)

Format file path to end with File.separator

Parameters:

filePath - origin file path

Returns:

Regularized Path

splitTsFilePath

public static String[] splitTsFilePath(String tsFileAbsolutePath)

IMPORTANT, when the path of TsFile changes, the following methods should be changed accordingly. The sequence TsFile is located at ${IOTDB_DATA_DIR}/data/sequence/. The unsequence TsFile is located at ${IOTDB_DATA_DIR}/data/unsequence/. Where different storage group's TsFile is located at ///. For example, one sequence TsFile may locate at /data/data/sequence/root.group_9/0/0/1611199237113-4-0.tsfile

Parameters:

tsFileAbsolutePath - the tsFile Absolute Path

getLogicalStorageGroupName

public static String getLogicalStorageGroupName(String tsFileAbsolutePath)

getDataRegionId

public static String getDataRegionId(String tsFileAbsolutePath)

getTimePartitionId

public static long getTimePartitionId(String tsFileAbsolutePath)

getTsFileNameWithoutHardLink

public static String getTsFileNameWithoutHardLink(String tsFileAbsolutePath)

Parameters:

tsFileAbsolutePath - the Remote TsFile Absolute Path

Returns:

the file in the snapshot is a hardlink, remove the hardlink suffix

getTsFilePrefixPath

public static String getTsFilePrefixPath(String tsFileAbsolutePath)

splitAndGetTsFileVersion

public static long splitAndGetTsFileVersion(String tsFileName)

getLogicalSgNameAndTimePartitionIdPair

public static Pair<String,Long> getLogicalSgNameAndTimePartitionIdPair(String tsFileAbsolutePath)

getTsFilePrefixPathAndTsFileVersionPair

public static Pair<String,long[]> getTsFilePrefixPathAndTsFileVersionPair(String tsFileAbsolutePath)

pair.left tsFilePrefixPath, like data/data/sequence/root.sg1/0/0 pair.right is a long array whose length is 2 pair.right[0] is tsfile version pair.right[1] is compaction version, high 32 bit is compaction level, low 32 bit is merge count