Package org.apache.iotdb.tsfile.utils

Class FilePathUtils

  • public class FilePathUtils
extends java.lang.Object

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String FILE_NAME_SEPARATOR  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String getDataRegionId​(java.lang.String tsFileAbsolutePath)  
      static Pair<java.lang.String,​java.lang.Long> getLogicalSgNameAndTimePartitionIdPair​(java.lang.String tsFileAbsolutePath)  
      static java.lang.String getLogicalStorageGroupName​(java.lang.String tsFileAbsolutePath)  
      static long getTimePartitionId​(java.lang.String tsFileAbsolutePath)  
      static java.lang.String getTsFileNameWithoutHardLink​(java.lang.String tsFileAbsolutePath)  
      static java.lang.String getTsFilePrefixPath​(java.lang.String tsFileAbsolutePath)  
      static Pair<java.lang.String,​long[]> getTsFilePrefixPathAndTsFileVersionPair​(java.lang.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 boolean isSequence​(java.lang.String tsFileAbsolutePath)  
      static java.lang.String regularizePath​(java.lang.String filePath)
      Format file path to end with File.separator
      static long splitAndGetTsFileVersion​(java.lang.String tsFileName)  
      static java.lang.String[] splitTsFilePath​(java.lang.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 java.lang.String FILE_NAME_SEPARATOR
        See Also:
        Constant Field Values

    • Method Detail

      • regularizePath

        public static java.lang.String regularizePath​(java.lang.String filePath)
        Format file path to end with File.separator
        Parameters:
        filePath - origin file path
        Returns:
        Regularized Path

      • splitTsFilePath

        public static java.lang.String[] splitTsFilePath​(java.lang.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 database'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

      • isSequence

        public static boolean isSequence​(java.lang.String tsFileAbsolutePath)

      • getLogicalStorageGroupName

        public static java.lang.String getLogicalStorageGroupName​(java.lang.String tsFileAbsolutePath)

      • getDataRegionId

        public static java.lang.String getDataRegionId​(java.lang.String tsFileAbsolutePath)

      • getTimePartitionId

        public static long getTimePartitionId​(java.lang.String tsFileAbsolutePath)

      • getTsFileNameWithoutHardLink

        public static java.lang.String getTsFileNameWithoutHardLink​(java.lang.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 java.lang.String getTsFilePrefixPath​(java.lang.String tsFileAbsolutePath)

      • splitAndGetTsFileVersion

        public static long splitAndGetTsFileVersion​(java.lang.String tsFileName)

      • getLogicalSgNameAndTimePartitionIdPair

        public static Pair<java.lang.String,​java.lang.Long> getLogicalSgNameAndTimePartitionIdPair​(java.lang.String tsFileAbsolutePath)

      • getTsFilePrefixPathAndTsFileVersionPair

        public static Pair<java.lang.String,​long[]> getTsFilePrefixPathAndTsFileVersionPair​(java.lang.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