org.apache.commons.compress.compressors.bzip2

Class BZip2Utils



  • public abstract class BZip2Utilsextends Object
    Utility code for the BZip2 compression format.
    Since:
    1.1
    This class is thread-safe
    • Method Detail

      • isCompressedFilename

        public static boolean isCompressedFilename(String filename)
        Detects common bzip2 suffixes in the given filename.
        Parameters:
        filename - name of a file
        Returns:
        true if the filename has a common bzip2 suffix, false otherwise
      • getUncompressedFilename

        public static String getUncompressedFilename(String filename)
        Maps the given name of a bzip2-compressed file to the name that the file should have after uncompression. Commonly used file type specific suffixes like ".tbz" or ".tbz2" are automatically detected and correctly mapped. For example the name "package.tbz2" is mapped to "package.tar". And any filenames with the generic ".bz2" suffix (or any other generic bzip2 suffix) is mapped to a name without that suffix. If no bzip2 suffix is detected, then the filename is returned unmapped.
        Parameters:
        filename - name of a file
        Returns:
        name of the corresponding uncompressed file
      • getCompressedFilename

        public static String getCompressedFilename(String filename)
        Maps the given filename to the name that the file should have after compression with bzip2. Currently this method simply appends the suffix ".bz2" to the filename based on the standard behaviour of the "bzip2" program, but a future version may implement a more complex mapping if a new widely used naming pattern emerges.
        Parameters:
        filename - name of a file
        Returns:
        name of the corresponding compressed file

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