ftp inbound-channel-adapter download files

[axelmangr]

Hello all,

I am facing some trouble on a Web Application. I have the following configuration (I have omitted non relative stuff)

<int:channel id="ftpChannel">
<int:queue />
</int:channel>

<bean id="ftpClientFactory" class="org.springframework.integration.ftp.session .DefaultFtpSessionFactory">
<property name="host" value="${host}"/>
<property name="port" value="${port}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
<property name="clientMode" value="0"/>
<property name="fileType" value="2"/>
<property name="bufferSize" value="100000"/>
</bean>

<int-ftp:inbound-channel-adapter id="ftpInbound"
channel="ftpChannel"
session-factory="ftpClientFactory"
charset="UTF-8"
auto-create-local-directory="true"
delete-remote-files="true"
filename-pattern="*.txt"
remote-directory="/the/remote/directory/"
remote-file-separator="/"
local-directory="/the/local/directory/">
<intoller fixed-rate="1000" max-messages-per-poll="-1"/>
</int-ftp:inbound-channel-adapter>

I would expect that whenever a new file would be created at ${host}:/the/remote/directory/ it would be downloaded locally to /the/local/directory. But this doesn't. Instead, after activating all relevant logs I get:

SimplePool:177 - Obtained org.springframework.integration.ftp.session.FtpSes sion@29ab0eef from pool.
CachingSessionFactory:109 - Releasing Session back to the pool.
CachingSessionFactory:109 - Releasing Session back to the pool.
SimplePool:210 - Releasing org.springframework.integration.ftp.session.FtpSes sion@29ab0eef back to the pool
SourcePollingChannelAdapter:71 - Received no Message during the poll, returning 'false'

What am I missing? Any help is appreciated

thanx
/axel

[Gary Russell]

When posting code and config, please use [ code ] ... [ /code ] (no spaces in brackets).

The adapter uses the Apache commons FTP client under the covers; it works just fine; you must have some configuration problem; maybe the user doesn't have read access to the file?

Can you manually ftp to the siite with the same credentials and list ('ls') the files?

If you use a wire monitor, such as WireShark, you can see the ftp traffic.

[axelmangr]

Hello,

thanx for the reply. I am sorry for not using the [code] convention.

The user credentials are fine. Using them through terminal I can download the file. So, I guess that this is not the problem. I'll try to monitor the ftp traffic, but to be honest, I am not sure I'll see anything. You see, the log messages, kind of indicate that there is no change in the remote directory so nothing is downloaded. Or I might be completely off track...

any other idea?

Thanx again for the reply

[Gary Russell]

The only other thing to watch out for is if a file with the same name already exists locally, it won't be copied again. If you are using the same file name multiple times, you must remove it locally after processing.

[axelmangr]

yeap, checked that also. There is no file with the same name in the local directory.

I can't seem to get it to work

[axelmangr]

I finally got it to work. It was a configuration issue that escaped my eye in the first place.

If you check my original post the ftpClientFactory bean has the following parameter

<property name="clientMode" value="0"/>

which directs to ACTIVE_LOCAL_DATA_CONNECTION_MODE

while it should be set to

<property name="clientMode" value="2"/>

which directs to PASSIVE_LOCAL_DATA_CONNECTION_MODE

thanx for the effort, I hope someone will find this usefull

/axel