org.apache.excalibur.source.impl
Class FTPSource

java.lang.Object
  org.apache.excalibur.source.impl.AbstractSource
      org.apache.excalibur.source.impl.URLSource
          org.apache.excalibur.source.impl.FTPSource

All Implemented Interfaces:

ModifiableSource, Source

public class FTPSource
extends URLSource
implements ModifiableSource

Source implementation for the File Transfer Protocol.

Author:

Avalon Development Team

Nested Class Summary

private static class	FTPSource.EnhancedFtpClient Need to extend FtpClient in order to get to protected issueCommand and implement additional functionality.
private static class	FTPSource.FTPSourceOutputStream Buffers the output in a byte array and only writes to the remote FTP location at closing time.

Field Summary

private boolean

m_isAscii

Fields inherited from class org.apache.excalibur.source.impl.URLSource

avalonParameters, connectTimeout, m_cachedLastModificationDate, m_cachedValidity, m_connection, m_encoding, m_exists, m_isPost, m_mimeType, m_parameters, m_url, readTimeout

Constructor Summary

FTPSource()

Method Summary

boolean	canCancel(java.io.OutputStream stream) Can the data sent to an OutputStream returned by getOutputStream() be cancelled ?
void	cancel(java.io.OutputStream stream) Cancel the data sent to an OutputStream returned by getOutputStream().
void	delete() Delete the source.
private FTPSource.EnhancedFtpClient	getFtpClient() Creates an FtpClient and logs in the current user.
protected void	getInfos() Get the last modification date and content length of the source.
java.io.OutputStream	getOutputStream() Return an OutputStream to write to.
private java.lang.String	getPassword()
private java.lang.String	getUser()
void	init(java.net.URL url, java.util.Map parameters) Initialize a new object from a URL.

Methods inherited from class org.apache.excalibur.source.impl.URLSource

exists, getInputStream, getMimeType, getUserInfo, getValidity, parameterize, refresh

Methods inherited from class org.apache.excalibur.source.impl.AbstractSource

checkInfos, getContentLength, getLastModified, getScheme, getURI, setContentLength, setLastModified, setScheme, setSystemId

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.excalibur.source.Source

exists, getContentLength, getInputStream, getLastModified, getMimeType, getScheme, getURI, getValidity, refresh

Field Detail

m_isAscii

private boolean m_isAscii

Constructor Detail

FTPSource

public FTPSource()

Method Detail

init

public void init(java.net.URL url,
                 java.util.Map parameters)
          throws java.io.IOException

Initialize a new object from a URL.

Overrides:

init in class URLSource

Parameters:

parameters - This is optional

Throws:

java.io.IOException

canCancel

public boolean canCancel(java.io.OutputStream stream)

Can the data sent to an OutputStream returned by getOutputStream() be cancelled ?

Specified by:

canCancel in interface ModifiableSource

Returns:

true if the stream can be cancelled

cancel

public void cancel(java.io.OutputStream stream)
            throws java.io.IOException

Cancel the data sent to an OutputStream returned by getOutputStream().

After cancel, the stream should not be used.

Specified by:

cancel in interface ModifiableSource

Throws:

java.io.IOException

delete

public void delete()
            throws SourceException

Delete the source.

Specified by:

delete in interface ModifiableSource

Throws:

SourceException

getInfos

protected void getInfos()

Get the last modification date and content length of the source. Any exceptions are ignored.

Overrides:

getInfos in class URLSource

getOutputStream

public java.io.OutputStream getOutputStream()
                                     throws java.io.IOException

Return an OutputStream to write to. The returned stream must be closed or cancelled by the calling code.

Specified by:

getOutputStream in interface ModifiableSource

Throws:

java.io.IOException

getFtpClient

private final FTPSource.EnhancedFtpClient getFtpClient()
                                                throws java.io.IOException

Creates an FtpClient and logs in the current user.

Throws:

java.io.IOException

getUser

private final java.lang.String getUser()

Returns:

the user part of the user info string, null if there is no user info.

getPassword

private final java.lang.String getPassword()

Returns:

the password part of the user info string, null if there is no user info.