FTP Listener Question

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1

Hi All,

I have configured a FTP Listener Port listening at 7000. I have associated a Package to this Port.

My Requirement: All I want to do is FTP a file to this Port and a Service to listen to this Port and get the document which got FTPed.

My Question: I try to connect thru windows command line to the port as

D:>ftp localhost:7000

This does not work.

I tried telnet localhost 7000 which is connecting but expecting User Name and Pwd. What is the User Name and Pwd I need to give???

I also tried to write a simple Flow Service to connect to the FTP Port and check whether I am able to access the directories? Where are the directory definitions available?

I am getiing the following error in the console:

2005-08-24 14:44:03 GMT+05:30 WMERROR c3d1e94eebcc8ce610570cf091d NULL c3d1e94eebcc8ce610570cf091d 1124874843422 S2B20988:5555 com.wm.net.ftpCException: [ISC.0064.9005] 555 Error: java.lang.NullPointerException com.wm.net.ftpCException: [ISC.0064.9005] 555 Error: java.lang.NullPointerException
at com.wm.net.FTPSession.login(FTPSession.java:473)
at com.wm.net.FTPSession.(FTPSession.java:141)
at pub.client.ftp.login(ftp.java:177)
at java.lang.reflect.Method.invoke(Native Method)
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:294)
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:347)
at com.wm.app.b2b.server.BaseService.invoke(BaseService.java:153)
at com.wm.lang.flow.FlowInvoke.invoke(FlowInvoke.java:324)
at com.wm.lang.flow.FlowState.invokeNode(FlowState.java:577)
at com.wm.lang.flow.FlowState.step(FlowState.java:435)
at com.wm.lang.flow.FlowState.invoke(FlowState.java:400)
at com.wm.app.b2b.server.FlowSvcImpl.baseInvoke(FlowSvcImpl.java:1740)
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:347)
at com.wm.app.b2b.server.BaseService.invoke(BaseService.java:153)
at com.wm.lang.flow.FlowInvoke.invoke(FlowInvoke.java:324)
at com.wm.lang.flow.FlowState.invokeNode(FlowState.java:577)
at com.wm.lang.flow.FlowState.stepIncremental(FlowState.java:491)
at com.wm.lang.flow.FlowState.invoke(FlowState.java:373)
at wm.server.flowimpl.stepFlow(flowimpl.java:183)
at java.lang.reflect.Method.invoke(Native Method)
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:294)
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:347)
at com.wm.app.b2b.server.comm.DefaultServerRequestHandler.handleMessage(DefaultServerRequestHandler.java:97)
at com.wm.app.b2b.server.HTTPMessageHandler.process(HTTPMessageHandler.java:167)
at com.wm.app.b2b.server.Dispatch.run(Dispatch.java:204)
at com.wm.util.pool.PooledThread.run(PooledThread.java:105)
at java.lang.Thread.run(Thread.java:512)
pub.client:ftp Any help would be great.

Thanks and regards,
Pazhanikanthan. P

2

  1. Try using a FTP client (other than MS’s client) that allow you to specify a port setting.
    or
    IExplore → ftp://host:7000, login using an authorised Integration Server account and then browse to the FLOW service.

  2. PUT a file in the pseudo directory and you will find that the service will have an IData object that represent the contents of the file that was uploaded.

Use pub.flow:savePipeline and pub.flow:restorePipeline to review the pipeline data.

3

To use the command line you can’t specify the port like that…

type in
ftp

then
open HOSTNAME PORT

That should allow you to connect.

You need to then change into a directory called “ns” under which you are sitting in the namespace of the Integration server. So if you have a service called myfolder.mySubfolder:myService, you would need to do:

cd ns/myfolder/mySubfolder/myService
and then uploading files will kick off your service…

Can also use filezilla (it’s an opensource/free/ok to use) as a client to test things.

Alternative solution to using FTP listener is to have a separate ftp server and then use file polling “port” to pick it up… That’s quite common too…

regards,
Nathan Lee

4

Also - when you associate a package with a port you’re actually associating the port to the package. i.e. when you deploy the package you’ll also deploy that port (see packages_package_\listeners.cnf)

Regards,
Adrian

5

Pazhanikanthan,

I want to fix that NPE in the FTP Client.

Exactly what version of Integration Server and what set of patches are you running?

Cheers,
Fred