org.apache.commons.compress.archivers.tar
Class TarArchiveSparseEntry
java.lang.Object
org.apache.commons.compress.archivers.tar.TarArchiveSparseEntry
- All Implemented Interfaces:
- TarConstants
public class TarArchiveSparseEntry
- extends Object
- implements TarConstants
This class represents a sparse entry in a Tar archive.
The C structure for a sparse entry is:
struct posix_header {
struct sparse sp[21]; // TarConstants.SPARSELEN_GNU_SPARSE - offset 0
char isextended; // TarConstants.ISEXTENDEDLEN_GNU_SPARSE - offset 504
};
Whereas, "struct sparse" is:
struct sparse {
char offset[12]; // offset 0
char numbytes[12]; // offset 12
};
Fields inherited from interface org.apache.commons.compress.archivers.tar.TarConstants |
ATIMELEN_GNU, CHKSUMLEN, CTIMELEN_GNU, DEVLEN, FORMAT_OLDGNU, FORMAT_POSIX, GIDLEN, GNAMELEN, GNU_LONGLINK, ISEXTENDEDLEN_GNU, ISEXTENDEDLEN_GNU_SPARSE, LF_BLK, LF_CHR, LF_CONTIG, LF_DIR, LF_FIFO, LF_GNUTYPE_LONGNAME, LF_GNUTYPE_SPARSE, LF_LINK, LF_NORMAL, LF_OLDNORM, LF_PAX_EXTENDED_HEADER_LC, LF_PAX_EXTENDED_HEADER_UC, LF_PAX_GLOBAL_EXTENDED_HEADER, LF_SYMLINK, LONGNAMESLEN_GNU, MAGIC_ANT, MAGIC_GNU, MAGIC_OFFSET, MAGIC_POSIX, MAGICLEN, MAXSIZE, MODELEN, MODTIMELEN, NAMELEN, OFFSETLEN_GNU, PAD2LEN_GNU, PREFIXLEN, REALSIZELEN_GNU, SIZELEN, SPARSELEN_GNU, SPARSELEN_GNU_SPARSE, UIDLEN, UNAMELEN, VERSION_ANT, VERSION_GNU_SPACE, VERSION_GNU_ZERO, VERSION_OFFSET, VERSION_POSIX, VERSIONLEN |
Constructor Summary |
TarArchiveSparseEntry(byte[] headerBuf)
Construct an entry from an archive's header bytes. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TarArchiveSparseEntry
public TarArchiveSparseEntry(byte[] headerBuf)
throws IOException
- Construct an entry from an archive's header bytes. File is set
to null.
- Parameters:
headerBuf
- The header bytes from a tar archive entry.
- Throws:
IOException
- on unknown format
isExtended
public boolean isExtended()
Copyright © 2011 The Apache Software Foundation. All Rights Reserved.