org.bibalex.daf.handlers.filehandler
Class FTPClientsPool

java.lang.Object
  org.bibalex.daf.handlers.filehandler.FTPClientsPool

 class FTPClientsPool
extends java.lang.Object

This class represents a pool of FTP clients, used to limit the number of FTPClients created while maintaning multithreading algorithm

Field Summary

private java.util.Hashtable<java.lang.String,com.enterprisedt.net.ftp.FTPClient>	freeFTPClients
private java.lang.String	hostName
private java.util.Hashtable<java.lang.String,com.enterprisedt.net.ftp.FTPClient>	inUseFTPClients
private java.lang.String	password
private int	poolSize
private java.lang.String	userName

Constructor Summary

FTPClientsPool(java.lang.String hostName, java.lang.String userName, java.lang.String password, int poolSize)
Constructor

Method Summary

private com.enterprisedt.net.ftp.FTPClient	createFTPClient() Creates a new Object of the FTPClient, addressed privatly, when the pool is still empty
(package private) com.enterprisedt.net.ftp.FTPClient	getFTPClient() Retives an existing instance of FTPClient, if there is a free one it is returned, if there is no and the pool size was not reached it creates a new one, If the pool is full and non is free it sends a wait signal
(package private) void	releaseFTPClient(com.enterprisedt.net.ftp.FTPClient ftpClient) This method indicates that a specific FTPClient is no longer in use, It is then moved from the used Clients Hash to the free Clients Hash

Methods inherited from class java.lang.Object

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

Field Detail

hostName

private java.lang.String hostName

userName

private java.lang.String userName

password

private java.lang.String password

poolSize

private int poolSize

inUseFTPClients

private java.util.Hashtable<java.lang.String,com.enterprisedt.net.ftp.FTPClient> inUseFTPClients

freeFTPClients

private java.util.Hashtable<java.lang.String,com.enterprisedt.net.ftp.FTPClient> freeFTPClients

Constructor Detail

FTPClientsPool

FTPClientsPool(java.lang.String hostName,
               java.lang.String userName,
               java.lang.String password,
               int poolSize)

Constructor

Parameters:

hostName - The Host Network Name or IP

userName - The User Name for the Connection

password - The Password for the Connection

poolSize - The Pool Size of the FTPClients

Method Detail

createFTPClient

private com.enterprisedt.net.ftp.FTPClient createFTPClient()

Creates a new Object of the FTPClient, addressed privatly, when the pool is still empty

Returns:

a instance of FTPClient

getFTPClient

com.enterprisedt.net.ftp.FTPClient getFTPClient()

Retives an existing instance of FTPClient, if there is a free one it is returned, if there is no and the pool size was not reached it creates a new one, If the pool is full and non is free it sends a wait signal

Returns:

an FTPClient instance free.

releaseFTPClient

void releaseFTPClient(com.enterprisedt.net.ftp.FTPClient ftpClient)

This method indicates that a specific FTPClient is no longer in use, It is then moved from the used Clients Hash to the free Clients Hash

Parameters:

ftpClient - The FTPClient to be released