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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 *
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package sun.net.ftp;

import java.util.Date;
import java.util.HashMap;


A FtpDirEntry is a class agregating all the information that the FTP client can gather from the server by doing a LST (or NLST) command and parsing the output. It will typically contain the name, type, size, last modification time, owner and group of the file, although some of these could be unavailable due to specific FTP server limitations. 
See Also:
Since:1.7
/**
 * A {@code FtpDirEntry} is a class agregating all the information that the FTP client
 * can gather from the server by doing a {@code LST} (or {@code NLST}) command and
 * parsing the output. It will typically contain the name, type, size, last modification
 * time, owner and group of the file, although some of these could be unavailable
 * due to specific FTP server limitations.
 *
 * @see sun.net.ftp.FtpDirParser
 * @since 1.7
 */
public class FtpDirEntry {

    public enum Type {

        FILE, DIR, PDIR, CDIR, LINK
    };

    public enum Permission {

        USER(0), GROUP(1), OTHERS(2);
        int value;

        Permission(int v) {
            value = v;
        }
    };
    private final String name;
    private String user = null;
    private String group = null;
    private long size = -1;
    private java.util.Date created = null;
    private java.util.Date lastModified = null;
    private Type type = Type.FILE;
    private boolean[][] permissions = null;
    private HashMap<String, String> facts = new HashMap<String, String>();

    private FtpDirEntry() {
        name = null;
    }

    
Creates an FtpDirEntry instance with only the name being set.

Params:
  • name – The name of the file
/**
     * Creates an FtpDirEntry instance with only the name being set.
     *
     * @param name The name of the file
     */
    public FtpDirEntry(String name) {
        this.name = name;
    }

    
Returns the name of the remote file.

Returns:a String containing the name of the remote file.
/**
     * Returns the name of the remote file.
     *
     * @return a {@code String} containing the name of the remote file.
     */
    public String getName() {
        return name;
    }

    
Returns the user name of the owner of the file as returned by the FTP
server, if provided. This could be a name or a user id (number).

Returns:a String containing the user name or null if that information is not available.
/**
     * Returns the user name of the owner of the file as returned by the FTP
     * server, if provided. This could be a name or a user id (number).
     *
     * @return a {@code String} containing the user name or
     *         {@code null} if that information is not available.
     */
    public String getUser() {
        return user;
    }

    
Sets the user name of the owner of the file. Intended mostly to be used from inside a FtpDirParser implementation. 
Params:
  • user – The user name of the owner of the file, or null if that information is not available.
Returns:this FtpDirEntry
/**
     * Sets the user name of the owner of the file. Intended mostly to be
     * used from inside a {@link java.net.FtpDirParser} implementation.
     *
     * @param user The user name of the owner of the file, or {@code null}
     * if that information is not available.
     * @return this FtpDirEntry
     */
    public FtpDirEntry setUser(String user) {
        this.user = user;
        return this;
    }

    
Returns the group name of the file as returned by the FTP
server, if provided. This could be a name or a group id (number).

Returns:a String containing the group name or null if that information is not available.
/**
     * Returns the group name of the file as returned by the FTP
     * server, if provided. This could be a name or a group id (number).
     *
     * @return a {@code String} containing the group name or
     *         {@code null} if that information is not available.
     */
    public String getGroup() {
        return group;
    }

    
Sets the name of the group to which the file belong. Intended mostly to be used from inside a FtpDirParser implementation. 
Params:
  • group – The name of the group to which the file belong, or null if that information is not available.
Returns:this FtpDirEntry
/**
     * Sets the name of the group to which the file belong. Intended mostly to be
     * used from inside a {@link java.net.FtpDirParser} implementation.
     *
     * @param group The name of the group to which the file belong, or {@code null}
     * if that information is not available.
     * @return this FtpDirEntry
     */
    public FtpDirEntry setGroup(String group) {
        this.group = group;
        return this;
    }

    
Returns the size of the remote file as it was returned by the FTP
server, if provided.

Returns:the size of the file or -1 if that information is not available.
/**
     * Returns the size of the remote file as it was returned by the FTP
     * server, if provided.
     *
     * @return the size of the file or -1 if that information is not available.
     */
    public long getSize() {
        return size;
    }

    
Sets the size of that file. Intended mostly to be used from inside an FtpDirParser implementation. 
Params:
  • size – The size, in bytes, of that file. or -1 if unknown.
Returns:this FtpDirEntry
/**
     * Sets the size of that file. Intended mostly to be used from inside an
     * {@link java.net.FtpDirParser} implementation.
     *
     * @param size The size, in bytes, of that file. or -1 if unknown.
     * @return this FtpDirEntry
     */
    public FtpDirEntry setSize(long size) {
        this.size = size;
        return this;
    }

    
Returns the type of the remote file as it was returned by the FTP
server, if provided.
It returns a FtpDirEntry.Type enum and the values can be:
- FtpDirEntry.Type.FILE for a normal file
- FtpDirEntry.Type.DIR for a directory
- FtpDirEntry.Type.LINK for a symbolic link

Returns:a FtpDirEntry.Type describing the type of the file or null if that information is not available.
/**
     * Returns the type of the remote file as it was returned by the FTP
     * server, if provided.
     * It returns a FtpDirEntry.Type enum and the values can be:
     * - FtpDirEntry.Type.FILE for a normal file
     * - FtpDirEntry.Type.DIR for a directory
     * - FtpDirEntry.Type.LINK for a symbolic link
     *
     * @return a {@code FtpDirEntry.Type} describing the type of the file
     *         or {@code null} if that information is not available.
     */
    public Type getType() {
        return type;
    }

    
Sets the type of the file. Intended mostly to be used from inside an FtpDirParser implementation. 
Params:
  • type – the type of this file or null if that information is not available.
Returns:this FtpDirEntry
/**
     * Sets the type of the file. Intended mostly to be used from inside an
     * {@link java.net.FtpDirParser} implementation.
     *
     * @param type the type of this file or {@code null} if that information
     * is not available.
     * @return this FtpDirEntry
     */
    public FtpDirEntry setType(Type type) {
        this.type = type;
        return this;
    }

    
Returns the last modification time of the remote file as it was returned by the FTP server, if provided, null otherwise. 
Returns:a Date representing the last time the file was modified on the server, or null if that information is not available.
/**
     * Returns the last modification time of the remote file as it was returned
     * by the FTP server, if provided, {@code null} otherwise.
     *
     * @return a <code>Date</code> representing the last time the file was
     *         modified on the server, or {@code null} if that
     *         information is not available.
     */
    public java.util.Date getLastModified() {
        return this.lastModified;
    }

    
Sets the last modification time of the file. Intended mostly to be used from inside an FtpDirParser implementation. 
Params:
  • lastModified – The Date representing the last modification time, or null if that information is not available.
Returns:this FtpDirEntry
/**
     * Sets the last modification time of the file. Intended mostly to be used
     * from inside an {@link java.net.FtpDirParser} implementation.
     *
     * @param lastModified The Date representing the last modification time, or
     * {@code null} if that information is not available.
     * @return this FtpDirEntry
     */
    public FtpDirEntry setLastModified(Date lastModified) {
        this.lastModified = lastModified;
        return this;
    }

    
Returns whether read access is granted for a specific permission.

Params:
  • p – the Permission (user, group, others) to check.
Returns:true if read access is granted.
/**
     * Returns whether read access is granted for a specific permission.
     *
     * @param p the Permission (user, group, others) to check.
     * @return {@code true} if read access is granted.
     */
    public boolean canRead(Permission p) {
        if (permissions != null) {
            return permissions[p.value][0];
        }
        return false;
    }

    
Returns whether write access is granted for a specific permission.

Params:
  • p – the Permission (user, group, others) to check.
Returns:true if write access is granted.
/**
     * Returns whether write access is granted for a specific permission.
     *
     * @param p the Permission (user, group, others) to check.
     * @return {@code true} if write access is granted.
     */
    public boolean canWrite(Permission p) {
        if (permissions != null) {
            return permissions[p.value][1];
        }
        return false;
    }

    
Returns whether execute access is granted for a specific permission.

Params:
  • p – the Permission (user, group, others) to check.
Returns:true if execute access is granted.
/**
     * Returns whether execute access is granted for a specific permission.
     *
     * @param p the Permission (user, group, others) to check.
     * @return {@code true} if execute access is granted.
     */
    public boolean canExexcute(Permission p) {
        if (permissions != null) {
            return permissions[p.value][2];
        }
        return false;
    }

    
Sets the permissions for that file. Intended mostly to be used from inside an FtpDirParser implementation. The permissions array is a 3x3 boolean array, the first index being the User, group or owner (0, 1 and 2 respectively) while the second index is read, write or execute (0, 1 and 2 respectively again). 
E.G.: permissions[1][2] is the group/execute permission.


Params:
  • permissions – a 3x3 boolean array
Returns:this FtpDirEntry
/**
     * Sets the permissions for that file. Intended mostly to be used
     * from inside an {@link java.net.FtpDirParser} implementation.
     * The permissions array is a 3x3 {@code boolean} array, the first index being
     * the User, group or owner (0, 1 and 2 respectively) while the second
     * index is read, write or execute (0, 1 and 2 respectively again).
     * <p>E.G.: {@code permissions[1][2]} is the group/execute permission.</p>
     *
     * @param permissions a 3x3 {@code boolean} array
     * @return this {@code FtpDirEntry}
     */
    public FtpDirEntry setPermissions(boolean[][] permissions) {
        this.permissions = permissions;
        return this;
    }

    
Adds a 'fact', as defined in RFC 3659, to the list of facts of this file. Intended mostly to be used from inside a FtpDirParser implementation. 
Params:
  • fact – the name of the fact (e.g. "Media-Type"). It is not case-sensitive.
  • value – the value associated with this fact.
Returns:this FtpDirEntry
/**
     * Adds a 'fact', as defined in RFC 3659, to the list of facts of this file.
     * Intended mostly to be used from inside a {@link java.net.FtpDirParser}
     * implementation.
     *
     * @param fact the name of the fact (e.g. "Media-Type"). It is not case-sensitive.
     * @param value the value associated with this fact.
     * @return this {@code FtpDirEntry}
     */
    public FtpDirEntry addFact(String fact, String value) {
        facts.put(fact.toLowerCase(), value);
        return this;
    }

    
Returns the requested 'fact', as defined in RFC 3659, if available.

Params:
  • fact – The name of the fact *e.g. "Media-Type"). It is not case sensitive.
Returns:The value of the fact or, null if that fact wasn't provided by the server.
/**
     * Returns the requested 'fact', as defined in RFC 3659, if available.
     *
     * @param fact The name of the fact *e.g. "Media-Type"). It is not case sensitive.
     * @return The value of the fact or, {@code null} if that fact wasn't
     * provided by the server.
     */
    public String getFact(String fact) {
        return facts.get(fact.toLowerCase());
    }

    
Returns the creation time of the file, when provided by the server.

Returns:The Date representing the creation time, or null if the server didn't provide that information.
/**
     * Returns the creation time of the file, when provided by the server.
     *
     * @return The Date representing the creation time, or {@code null}
     * if the server didn't provide that information.
     */
    public Date getCreated() {
        return created;
    }

    
Sets the creation time for that file. Intended mostly to be used from inside a FtpDirParser implementation. 
Params:
  • created – the Date representing the creation time for that file, or null if that information is not available.
Returns:this FtpDirEntry
/**
     * Sets the creation time for that file. Intended mostly to be used from
     * inside a {@link java.net.FtpDirParser} implementation.
     *
     * @param created the Date representing the creation time for that file, or
     * {@code null} if that information is not available.
     * @return this FtpDirEntry
     */
    public FtpDirEntry setCreated(Date created) {
        this.created = created;
        return this;
    }

    
Returns a string representation of the object. The toString method for class FtpDirEntry returns a string consisting of the name of the file, followed by its type between brackets, followed by the user and group between parenthesis, then size between '{', and, finally, the lastModified of last modification if it's available. 
Returns: a string representation of the object.
/**
     * Returns a string representation of the object.
     * The {@code toString} method for class {@code FtpDirEntry}
     * returns a string consisting of the name of the file, followed by its
     * type between brackets, followed by the user and group between
     * parenthesis, then size between '{', and, finally, the lastModified of last
     * modification if it's available.
     *
     * @return  a string representation of the object.
     */
    @Override
    public String toString() {
        if (lastModified == null) {
            return name + " [" + type + "] (" + user + " / " + group + ") " + size;
        }
        return name + " [" + type + "] (" + user + " / " + group + ") {" + size + "} " + java.text.DateFormat.getDateInstance().format(lastModified);
    }
}