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Java Source Code / Java Documentation » Build » ANT » org.apache.tools.zip 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.tools.zip.AsiExtraField

AsiExtraField
public class AsiExtraField implements ZipExtraField,UnixStat,Cloneable(Code)
Adds Unix file permission and UID/GID fields as well as symbolic link handling.

This class uses the ASi extra field in the format:

 Value         Size            Description
 -----         ----            -----------
 (Unix3) 0x756e        Short           tag for this extra block type
 TSize         Short           total data size for this block
 CRC           Long            CRC-32 of the remaining data
 Mode          Short           file permissions
 SizDev        Long            symlink'd size OR major/minor dev num
 UID           Short           user ID
 GID           Short           group ID
 (var.)        variable        symbolic link filename
 
taken from appnote.iz (Info-ZIP note, 981119) found at ftp://ftp.uu.net/pub/archiving/zip/doc/

Short is two bytes and Long is four bytes in big endian byte and word order, device numbers are currently not supported.




Constructor Summary
public  AsiExtraField()
     Constructor for AsiExtraField.

Method Summary
public  byte[]getCentralDirectoryData()
     Delegate to local file data.
public  ZipShortgetCentralDirectoryLength()
     Delegate to local file data.
public  intgetGroupId()
     Get the group id.
public  ZipShortgetHeaderId()
     The Header-ID.
public  StringgetLinkedFile()
    
public  byte[]getLocalFileDataData()
     The actual data to put into local file data - without Header-ID or length specifier.
public  ZipShortgetLocalFileDataLength()
     Length of the extra field in the local file data - without Header-ID or length specifier.
public  intgetMode()
     File mode of this file.
protected  intgetMode(int mode)
     Get the file mode for given permissions with the correct file type.
public  intgetUserId()
     Get the user id.
public  booleanisDirectory()
    
public  booleanisLink()
    
public  voidparseFromLocalFileData(byte[] data, int offset, int length)
     Populate data from this array as if it was in local file data.
public  voidsetDirectory(boolean dirFlag)
     Indicate whether this entry is a directory.
public  voidsetGroupId(int gid)
     Set the group id.
public  voidsetLinkedFile(String name)
     Indicate that this entry is a symbolic link to the given filename.
public  voidsetMode(int mode)
     File mode of this file.
public  voidsetUserId(int uid)
     Set the user id.


Constructor Detail
AsiExtraField
public AsiExtraField()(Code)
Constructor for AsiExtraField.




Method Detail
getCentralDirectoryData
public byte[] getCentralDirectoryData()(Code)
Delegate to local file data. the local file data
since:
   1.1



getCentralDirectoryLength
public ZipShort getCentralDirectoryLength()(Code)
Delegate to local file data. the centralDirectory length
since:
   1.1



getGroupId
public int getGroupId()(Code)
Get the group id. the group id
since:
   1.1



getHeaderId
public ZipShort getHeaderId()(Code)
The Header-ID. the value for the header id for this extrafield
since:
   1.1



getLinkedFile
public String getLinkedFile()(Code)
Name of linked file name of the file this entry links to if it is asymbolic link, the empty string otherwise.
since:
   1.1



getLocalFileDataData
public byte[] getLocalFileDataData()(Code)
The actual data to put into local file data - without Header-ID or length specifier. get the data
since:
   1.1



getLocalFileDataLength
public ZipShort getLocalFileDataLength()(Code)
Length of the extra field in the local file data - without Header-ID or length specifier. a ZipShort for the length of the data of this extra field
since:
   1.1



getMode
public int getMode()(Code)
File mode of this file. the file mode
since:
   1.1



getMode
protected int getMode(int mode)(Code)
Get the file mode for given permissions with the correct file type.
Parameters:
  mode - the mode the type with the mode
since:
   1.1



getUserId
public int getUserId()(Code)
Get the user id. the user id
since:
   1.1



isDirectory
public boolean isDirectory()(Code)
Is this entry a directory? true if this entry is a directory
since:
   1.1



isLink
public boolean isLink()(Code)
Is this entry a symbolic link? true if this is a symbolic link
since:
   1.1



parseFromLocalFileData
public void parseFromLocalFileData(byte[] data, int offset, int length) throws ZipException(Code)
Populate data from this array as if it was in local file data.
Parameters:
  data - an array of bytes
Parameters:
  offset - the start offset
Parameters:
  length - the number of bytes in the array from offset
since:
   1.1
throws:
  ZipException - on error



setDirectory
public void setDirectory(boolean dirFlag)(Code)
Indicate whether this entry is a directory.
Parameters:
  dirFlag - if true, this entry is a directory
since:
   1.1



setGroupId
public void setGroupId(int gid)(Code)
Set the group id.
Parameters:
  gid - the group id
since:
   1.1



setLinkedFile
public void setLinkedFile(String name)(Code)
Indicate that this entry is a symbolic link to the given filename.
Parameters:
  name - Name of the file this entry links to, empty Stringif it is not a symbolic link.
since:
   1.1



setMode
public void setMode(int mode)(Code)
File mode of this file.
Parameters:
  mode - the file mode
since:
   1.1



setUserId
public void setUserId(int uid)(Code)
Set the user id.
Parameters:
  uid - the user id
since:
   1.1



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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