Class TarArchiveSparseEntry
- java.lang.Object
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- org.apache.commons.compress.archivers.tar.TarArchiveSparseEntry
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- All Implemented Interfaces:
TarConstants
public class TarArchiveSparseEntry extends java.lang.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 };
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Field Summary
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Fields inherited from interface org.apache.commons.compress.archivers.tar.TarConstants
ATIMELEN_GNU, ATIMELEN_XSTAR, CHKSUM_OFFSET, CHKSUMLEN, CTIMELEN_GNU, CTIMELEN_XSTAR, DEFAULT_BLKSIZE, DEFAULT_RCDSIZE, DEVLEN, FORMAT_OLDGNU, FORMAT_POSIX, FORMAT_XSTAR, GIDLEN, GNAMELEN, GNU_LONGLINK, ISEXTENDEDLEN_GNU, ISEXTENDEDLEN_GNU_SPARSE, LF_BLK, LF_CHR, LF_CONTIG, LF_DIR, LF_FIFO, LF_GNUTYPE_LONGLINK, 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, MAGIC_XSTAR, MAGICLEN, MAXID, MAXSIZE, MODELEN, MODTIMELEN, NAMELEN, OFFSETLEN_GNU, PAD2LEN_GNU, PREFIXLEN, PREFIXLEN_XSTAR, REALSIZELEN_GNU, SIZELEN, SPARSE_HEADERS_IN_EXTENSION_HEADER, SPARSE_HEADERS_IN_OLDGNU_HEADER, SPARSE_NUMBYTES_LEN, SPARSE_OFFSET_LEN, SPARSELEN_GNU, SPARSELEN_GNU_SPARSE, UIDLEN, UNAMELEN, VERSION_ANT, VERSION_GNU_SPACE, VERSION_GNU_ZERO, VERSION_OFFSET, VERSION_POSIX, VERSIONLEN, XSTAR_MAGIC_LEN, XSTAR_MAGIC_OFFSET
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Constructor Summary
Constructors Constructor Description TarArchiveSparseEntry(byte[] headerBuf)
Construct an entry from an archive's header bytes.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.util.List<TarArchiveStructSparse>
getSparseHeaders()
Obtains information about the configuration for the sparse entry.boolean
isExtended()
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Constructor Detail
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TarArchiveSparseEntry
public TarArchiveSparseEntry(byte[] headerBuf) throws java.io.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:
java.io.IOException
- on unknown format
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Method Detail
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isExtended
public boolean isExtended()
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getSparseHeaders
public java.util.List<TarArchiveStructSparse> getSparseHeaders()
Obtains information about the configuration for the sparse entry.- Returns:
- information about the configuration for the sparse entry.
- Since:
- 1.20
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