How to load files from user to repository directly using DFS and web app?

I develop a web application that uses DFS to load document to repository. The document content is added by using

dataObject.Contents.Add(New FileContent(Path.GetFullPath(filepath), filetype))

The above Path.GetFullPath(filepath) only works if the web application and the file are in the same computer. Or the file is not found. So I add a middle step at the background to save the file to the server first before call the above line.

The current process is: the user uses upload control to load the file to the server, then the above line of code picks the file from server to repository. It looks as if there should be a direct way to load files to repository without save to web server. But how to achieve this?

Please advice.

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Comments

aflowers001

Hi,

Take a look at using UCF, it's how Documentum web application do it but it does need the UCF client installed at the client side.

Even in Webtop, without UCF, it's a case of upload to the web server then send to the repository.

You could also look into not using FileContent and instead use BinaryContent and feed in the bytes read from the HTTP upload?

Hongmei

I try change from FileContent to BinaryContent without any luck. The error message is the webservice invocation failed.

UCF is a good idea. I will give it a go.

aflowers001

Do you have the stack trace etc. from what goes wrong with BinaryContent?

Hongmei

It seems out of memory error. I will clean the log and try it again.

Oops. I am looking at the wrong server. Please what is the exact path of the log file? I find nothing from the right server.

aflowers001

Hi,

I'm guessing that you have relatively large files? These will cause an out of memory error and the heap/stack allocated ot the JVM will be exhausted if doing all of the operations in memory.

you can also look at DataHandlerContent as this is more memory efficient, which is basically implying MTOM as the transfer mechanism.

You may also need to increase the memory allocation for your web server as well to handle large data in memory.