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Panda Core is the core module of Panda Framework, it contains commonly used utility classes similar to apache-commons.
package panda.net.ftp.parser;
import java.text.ParseException;
import panda.net.ftp.FTPClientConfig;
import panda.net.ftp.FTPFile;
/**
* Implementation of FTPFileEntryParser and FTPFileListParser for Netware Systems. Note that some of
* the proprietary extensions for Novell-specific operations are not supported. See http://www.novell.com/documentation/nw65/index.html?page=/documentation/nw65/ftp_enu/data/
* fbhbgcfa.html for more details.
*
* @see panda.net.ftp.FTPFileEntryParser FTPFileEntryParser (for usage instructions)
*/
public class NetwareFTPEntryParser extends ConfigurableFTPFileEntryParserImpl {
/**
* Default date format is e.g. Feb 22 2006
*/
private static final String DEFAULT_DATE_FORMAT = "MMM dd yyyy";
/**
* Default recent date format is e.g. Feb 22 17:32
*/
private static final String DEFAULT_RECENT_DATE_FORMAT = "MMM dd HH:mm";
/**
* this is the regular expression used by this parser. Example: d [-W---F--] SCION_VOL2 512 Apr
* 13 23:12 VOL2
*/
private static final String REGEX = "(d|-){1}\\s+" // Directory/file flag
+ "\\[([-A-Z]+)\\]\\s+" // Attributes RWCEAFMS or -
+ "(\\S+)\\s+" + "(\\d+)\\s+" // Owner and size
+ "(\\S+\\s+\\S+\\s+((\\d+:\\d+)|(\\d{4})))" // Long/short date format
+ "\\s+(.*)"; // Filename (incl. spaces)
/**
* The default constructor for a NetwareFTPEntryParser object.
*
* @exception IllegalArgumentException Thrown if the regular expression is unparseable. Should
* not be seen under normal conditions. It it is seen, this is a sign that
* REGEX
is not a valid regular expression.
*/
public NetwareFTPEntryParser() {
this(null);
}
/**
* This constructor allows the creation of an NetwareFTPEntryParser object with something other
* than the default configuration.
*
* @param config The {@link FTPClientConfig configuration} object used to configure this parser.
* @exception IllegalArgumentException Thrown if the regular expression is unparseable. Should
* not be seen under normal conditions. It it is seen, this is a sign that
* REGEX
is not a valid regular expression.
*/
public NetwareFTPEntryParser(FTPClientConfig config) {
super(REGEX);
configure(config);
}
/**
* Parses a line of an NetwareFTP server file listing and converts it into a usable format in
* the form of an FTPFile
instance. If the file listing line doesn't describe a
* file, null
is returned, otherwise a FTPFile
instance
* representing the files in the directory is returned.
*
* Netware file permissions are in the following format: RWCEAFMS, and are explained as follows:
*
* - S - Supervisor; All rights.
*
- R - Read; Right to open and read or execute.
*
- W - Write; Right to open and modify.
*
- C - Create; Right to create; when assigned to a file, allows a deleted file to be
* recovered.
*
- E - Erase; Right to delete.
*
- M - Modify; Right to rename a file and to change attributes.
*
- F - File Scan; Right to see directory or file listings.
*
- A - Access Control; Right to modify trustee assignments and the Inherited Rights
* Mask.
*
* See here for more details
*
* @param entry A line of text from the file listing
* @return An FTPFile instance corresponding to the supplied entry
*/
// @Override
public FTPFile parseFTPEntry(String entry) {
FTPFile f = new FTPFile();
if (matches(entry)) {
String dirString = group(1);
String attrib = group(2);
String user = group(3);
String size = group(4);
String datestr = group(5);
String name = group(9);
try {
f.setTimestamp(super.parseTimestamp(datestr));
}
catch (ParseException e) {
// intentionally do nothing
}
// is it a DIR or a file
if (dirString.trim().equals("d")) {
f.setType(FTPFile.DIRECTORY_TYPE);
}
else // Should be "-"
{
f.setType(FTPFile.FILE_TYPE);
}
f.setUser(user);
// set the name
f.setName(name.trim());
// set the size
f.setSize(Long.parseLong(size.trim()));
// Now set the permissions (or at least a subset thereof - full permissions would
// probably require
// subclassing FTPFile and adding extra metainformation there)
if (attrib.indexOf("R") != -1) {
f.setPermission(FTPFile.USER_ACCESS, FTPFile.READ_PERMISSION, true);
}
if (attrib.indexOf("W") != -1) {
f.setPermission(FTPFile.USER_ACCESS, FTPFile.WRITE_PERMISSION, true);
}
return (f);
}
return null;
}
/**
* Defines a default configuration to be used when this class is instantiated without a
* {@link FTPClientConfig FTPClientConfig} parameter being specified.
*
* @return the default configuration for this parser.
*/
@Override
protected FTPClientConfig getDefaultConfiguration() {
return new FTPClientConfig(FTPClientConfig.SYST_NETWARE, DEFAULT_DATE_FORMAT, DEFAULT_RECENT_DATE_FORMAT, null,
null, null);
}
}