org.apache.tools.ant.taskdefs.optional.net

Class FTPTaskMirrorImpl

java.lang.Object

org.apache.tools.ant.taskdefs.optional.net.FTPTaskMirrorImpl

All Implemented Interfaces:

FTPTaskMirror

public class FTPTaskMirrorImpl
extends java.lang.Object
implements FTPTaskMirror

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	FTPTaskMirrorImpl.FTPDirectoryScanner internal class allowing to read the contents of a remote file system using the FTP protocol used in particular for ftp get operations differences with DirectoryScanner "" (the root of the fileset) is never included in the included directories followSymlinks defaults to false
protected static class	FTPTaskMirrorImpl.FTPFileProxy internal class providing a File-like interface to some of the information available from the FTP server

Constructor Summary

Constructors

Constructor and Description
FTPTaskMirrorImpl(FTPTask task) Constructor.

Method Summary

Modifier and Type	Method and Description
protected void	createParents(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String filename) Creates all parent directories specified in a complete relative pathname.
protected void	delFile(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String filename) Delete a file from the remote host.
void	doFTP()
protected void	doSiteCommand(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String theCMD) Sends a site command to the ftp server
protected void	executeRetryable(RetryHandler h, Retryable r, java.lang.String descr) Executable a retryable object.
protected void	getFile(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String dir, java.lang.String filename) Retrieve a single file from the remote host.
protected boolean	isUpToDate(org.apache.commons.net.ftp.FTPClient ftp, java.io.File localFile, java.lang.String remoteFile) Checks to see if the remote file is current as compared with the local file.
protected void	listFile(org.apache.commons.net.ftp.FTPClient ftp, java.io.BufferedWriter bw, java.lang.String filename) List information about a single file from the remote host.
protected void	makeRemoteDir(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String dir) Create the specified directory on the remote host.
protected java.lang.String	resolveFile(java.lang.String file) Correct a file path to correspond to the remote host requirements.
protected void	rmDir(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String dirname) Delete a directory, if empty, from the remote host.
protected void	sendFile(org.apache.commons.net.ftp.FTPClient ftp, java.lang.String dir, java.lang.String filename) Sends a single file to the remote host.
protected void	transferFiles(org.apache.commons.net.ftp.FTPClient ftp) Sends all files specified by the configured filesets to the remote server.
protected int	transferFiles(org.apache.commons.net.ftp.FTPClient ftp, FileSet fs) For each file in the fileset, do the appropriate action: send, get, delete, or list.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FTPTaskMirrorImpl

public FTPTaskMirrorImpl(FTPTask task)

Constructor.

Parameters:

task - the FTPTask that uses this mirror.

Method Detail

executeRetryable

protected void executeRetryable(RetryHandler h,
                                Retryable r,
                                java.lang.String descr)
                         throws java.io.IOException

Executable a retryable object.

Parameters:

h - the retry handler.

r - the object that should be retried until it succeeds or the number of retries is reached.

descr - a description of the command that is being run.

Throws:

java.io.IOException - if there is a problem.

transferFiles

protected int transferFiles(org.apache.commons.net.ftp.FTPClient ftp,
                            FileSet fs)
                     throws java.io.IOException,
                            BuildException

For each file in the fileset, do the appropriate action: send, get, delete, or list.

Parameters:

ftp - the FTPClient instance used to perform FTP actions

fs - the fileset on which the actions are performed.

Returns:

the number of files to be transferred.

Throws:

java.io.IOException - if there is a problem reading a file

BuildException - if there is a problem in the configuration.

transferFiles

protected void transferFiles(org.apache.commons.net.ftp.FTPClient ftp)
                      throws java.io.IOException,
                             BuildException

Sends all files specified by the configured filesets to the remote server.

Parameters:

ftp - the FTPClient instance used to perform FTP actions

Throws:

java.io.IOException - if there is a problem reading a file

BuildException - if there is a problem in the configuration.

resolveFile

protected java.lang.String resolveFile(java.lang.String file)

Correct a file path to correspond to the remote host requirements. This implementation currently assumes that the remote end can handle Unix-style paths with forward-slash separators. This can be overridden with the separator task parameter. No attempt is made to determine what syntax is appropriate for the remote host.

Parameters:

file - the remote file name to be resolved

Returns:

the filename as it will appear on the server.

createParents

protected void createParents(org.apache.commons.net.ftp.FTPClient ftp,
                             java.lang.String filename)
                      throws java.io.IOException,
                             BuildException

Creates all parent directories specified in a complete relative pathname. Attempts to create existing directories will not cause errors.

Parameters:

ftp - the FTP client instance to use to execute FTP actions on the remote server.

filename - the name of the file whose parents should be created.

Throws:

java.io.IOException - under non documented circumstances

BuildException - if it is impossible to cd to a remote directory

isUpToDate

protected boolean isUpToDate(org.apache.commons.net.ftp.FTPClient ftp,
                             java.io.File localFile,
                             java.lang.String remoteFile)
                      throws java.io.IOException,
                             BuildException

Checks to see if the remote file is current as compared with the local file. Returns true if the target file is up to date.

Parameters:

ftp - ftpclient

localFile - local file

remoteFile - remote file

Returns:

true if the target file is up to date

Throws:

java.io.IOException - in unknown circumstances

BuildException - if the date of the remote files cannot be found and the action is GET_FILES

doSiteCommand

protected void doSiteCommand(org.apache.commons.net.ftp.FTPClient ftp,
                             java.lang.String theCMD)
                      throws java.io.IOException,
                             BuildException

Sends a site command to the ftp server

Parameters:

ftp - ftp client

theCMD - command to execute

Throws:

java.io.IOException - in unknown circumstances

BuildException - in unknown circumstances

sendFile

protected void sendFile(org.apache.commons.net.ftp.FTPClient ftp,
                        java.lang.String dir,
                        java.lang.String filename)
                 throws java.io.IOException,
                        BuildException

Sends a single file to the remote host. filename may contain a relative path specification. When this is the case, sendFile will attempt to create any necessary parent directories before sending the file. The file will then be sent using the entire relative path spec - no attempt is made to change directories. It is anticipated that this may eventually cause problems with some FTP servers, but it simplifies the coding.

Parameters:

ftp - ftp client

dir - base directory of the file to be sent (local)

filename - relative path of the file to be send locally relative to dir remotely relative to the remotedir attribute

Throws:

java.io.IOException - in unknown circumstances

BuildException - in unknown circumstances

delFile

protected void delFile(org.apache.commons.net.ftp.FTPClient ftp,
                       java.lang.String filename)
                throws java.io.IOException,
                       BuildException

Delete a file from the remote host.

Parameters:

ftp - ftp client

filename - file to delete

Throws:

java.io.IOException - in unknown circumstances

BuildException - if skipFailedTransfers is set to false and the deletion could not be done

rmDir

protected void rmDir(org.apache.commons.net.ftp.FTPClient ftp,
                     java.lang.String dirname)
              throws java.io.IOException,
                     BuildException

Delete a directory, if empty, from the remote host.

Parameters:

ftp - ftp client

dirname - directory to delete

Throws:

java.io.IOException - in unknown circumstances

BuildException - if skipFailedTransfers is set to false and the deletion could not be done

getFile

protected void getFile(org.apache.commons.net.ftp.FTPClient ftp,
                       java.lang.String dir,
                       java.lang.String filename)
                throws java.io.IOException,
                       BuildException

Retrieve a single file from the remote host. filename may contain a relative path specification.

The file will then be retrieved using the entire relative path spec - no attempt is made to change directories. It is anticipated that this may eventually cause problems with some FTP servers, but it simplifies the coding.

Parameters:

ftp - the ftp client

dir - local base directory to which the file should go back

filename - relative path of the file based upon the ftp remote directory and/or the local base directory (dir)

Throws:

java.io.IOException - in unknown circumstances

BuildException - if skipFailedTransfers is false and the file cannot be retrieved.

listFile

protected void listFile(org.apache.commons.net.ftp.FTPClient ftp,
                        java.io.BufferedWriter bw,
                        java.lang.String filename)
                 throws java.io.IOException,
                        BuildException

List information about a single file from the remote host. filename may contain a relative path specification.

The file listing will then be retrieved using the entire relative path spec - no attempt is made to change directories. It is anticipated that this may eventually cause problems with some FTP servers, but it simplifies the coding.

Parameters:

ftp - ftp client

bw - buffered writer

filename - the directory one wants to list

Throws:

java.io.IOException - in unknown circumstances

BuildException - in unknown circumstances

makeRemoteDir

protected void makeRemoteDir(org.apache.commons.net.ftp.FTPClient ftp,
                             java.lang.String dir)
                      throws java.io.IOException,
                             BuildException

Create the specified directory on the remote host.

Parameters:

ftp - The FTP client connection

dir - The directory to create (format must be correct for host type)

Throws:

java.io.IOException - in unknown circumstances

BuildException - if ignoreNoncriticalErrors has not been set to true and a directory could not be created, for instance because it was already existing. Precisely, the codes 521, 550 and 553 will trigger a BuildException

doFTP

public void doFTP()
           throws BuildException

Specified by:

doFTP in interface FTPTaskMirror

Throws:

BuildException