Downloading files from FTP Server where directory changed dynamically - spring

Question

I am using Spring Integration to download/upload files from FTP server.
How can I change remote-directory="/directory Name" dynamically in Spring FTP:Inbound-Channel.
My client will create a folder daily basically in "MM-dd-yy" format and copy all files there.
In "FTP:Inbound-channel" I did not find any way to configure this pattern. I basically have
to hardcord the directory or file names in configuration.
What I want is to set the path programatically. Because some times I need to download all files
from a direcotory or download only a specific file.
I found "remote-directory-expression="'directory'+'/'+ new java.text.SimpleDateFormat('dd-MM-yyyy').format(new java.util.Date())" can be set in FTP:Outbound-channel
is there any such attribute in FTP:InBound-channel
My configuration is like this:
<bean id="ftpClientFactory"
class="org.springframework.integration.ftp.session.DefaultFtpSessionFactory">
<property name="host" value="${host}" />
<property name="port" value="${availableServerPort}" />
<property name="username" value="${userid}" />
<property name="password" value="${password}" />
</bean>
<int-ftp:inbound-channel-adapter id="ftpInbound"
cache-sessions="false" channel="ftpChannel" session-factory="ftpClientFactory"
filename-pattern="*.txt" auto-create-local-directory="true"
delete-remote-files="false" remote-directory="/filedirectory"
local-directory="${local_directory}">
<int:poller fixed-rate="1000" />
</int-ftp:inbound-channel-adapter>
<int:channel id="ftpChannel">
<int:queue />
</int:channel>
I did not find a way to do all the above items.
Please let me know how can I achieve this.

Answer 1

You can't do it with the inbound adapter, but the <ftp:outbound-gateway/> can be used to achieve what you need; described here.
You can either use ls to list the files, followed a <splitter/> and another gateway using get; or you can use the mget command with a file name pattern in the expression.
The FTP sample has an example of using the gateway