com.trilead.ssh2.SFTPv3FileAttributes Maven / Gradle / Ivy
package com.trilead.ssh2;
/**
* A SFTPv3FileAttributes object represents detail information
* about a file on the server. Not all fields may/must be present.
*
* @author Christian Plattner, [email protected]
* @version $Id: SFTPv3FileAttributes.java,v 1.1 2007/10/15 12:49:56 cplattne Exp $
*/
public class SFTPv3FileAttributes
{
/**
* The SIZE attribute. NULL if not present.
*/
public Long size = null;
/**
* The UID attribute. NULL if not present.
*/
public Integer uid = null;
/**
* The GID attribute. NULL if not present.
*/
public Integer gid = null;
/**
* The POSIX permissions. NULL if not present.
*
* Here is a list:
*
*
Note: these numbers are all OCTAL.
*
* S_IFMT 0170000 bitmask for the file type bitfields
* S_IFSOCK 0140000 socket
* S_IFLNK 0120000 symbolic link
* S_IFREG 0100000 regular file
* S_IFBLK 0060000 block device
* S_IFDIR 0040000 directory
* S_IFCHR 0020000 character device
* S_IFIFO 0010000 fifo
* S_ISUID 0004000 set UID bit
* S_ISGID 0002000 set GID bit
* S_ISVTX 0001000 sticky bit
*
* S_IRWXU 00700 mask for file owner permissions
* S_IRUSR 00400 owner has read permission
* S_IWUSR 00200 owner has write permission
* S_IXUSR 00100 owner has execute permission
* S_IRWXG 00070 mask for group permissions
* S_IRGRP 00040 group has read permission
* S_IWGRP 00020 group has write permission
* S_IXGRP 00010 group has execute permission
* S_IRWXO 00007 mask for permissions for others (not in group)
* S_IROTH 00004 others have read permission
* S_IWOTH 00002 others have write permisson
* S_IXOTH 00001 others have execute permission
*
*/
public Integer permissions = null;
/**
* The ATIME attribute. Represented as seconds from Jan 1, 1970 in UTC.
* NULL if not present.
*/
public Integer atime = null;
/**
* The MTIME attribute. Represented as seconds from Jan 1, 1970 in UTC.
* NULL if not present.
*/
public Integer mtime = null;
/**
* Checks if this entry is a directory.
*
* @return Returns true if permissions are available and they indicate
* that this entry represents a directory.
*/
public boolean isDirectory()
{
if (permissions == null)
return false;
return ((permissions.intValue() & 0040000) != 0);
}
/**
* Checks if this entry is a regular file.
*
* @return Returns true if permissions are available and they indicate
* that this entry represents a regular file.
*/
public boolean isRegularFile()
{
if (permissions == null)
return false;
return ((permissions.intValue() & 0100000) != 0);
}
/**
* Checks if this entry is a a symlink.
*
* @return Returns true if permissions are available and they indicate
* that this entry represents a symlink.
*/
public boolean isSymlink()
{
if (permissions == null)
return false;
return ((permissions.intValue() & 0120000) != 0);
}
/**
* Turn the POSIX permissions into a 7 digit octal representation.
* Note: the returned value is first masked with 0177777.
*
* @return NULL if permissions are not available.
*/
public String getOctalPermissions()
{
if (permissions == null)
return null;
String res = Integer.toString(permissions.intValue() & 0177777, 8);
StringBuffer sb = new StringBuffer();
int leadingZeros = 7 - res.length();
while (leadingZeros > 0)
{
sb.append('0');
leadingZeros--;
}
sb.append(res);
return sb.toString();
}
}