Documentum and ASP.net

Hi Guys,

We use D6.5 SP2 and are researching the interfacing with one system to Documentum. The business question is simple. Is is possible (and how) to retrieve a document from Documentum (based on r_object_id) and show it as to the user. The other system is an ASP.net website that will be sending the request to Documentum. The other system knows already the object_id.

Now i've made this in a .net Windows application by using System.Diagnostics.

Process.Start(IDFsysobject.getfile()).

This works in a Windowsappliation just fine.

Is there a way, and hopefully does anyone have sample code, possible with a asp.net web application?

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DCTM_Guru

Do you have Documentum Webtop installed? If so, you can get a document using url:

http://host:port/webtop/drl/objectId/09a98ac880000401

Berry67

Thanks John,

Maybe I see to many problems but the other system is not login to documentum. So if i use your URL (which is fine by me), I need to pass credentials. Or i'am I wrong?

DCTM_Guru

You would have to provide login credentials, but you would have to do this as well with your .NET code. If are planning to use application user for all interactions with DCTM, you could customize the DRL component such that the user/password is used when connecting with the url.

My suggestion was solely to give an out of the box solution that requires no customization.

dnvhariprasad

I can suggest you using DFS web services to get the document from your .net application. Advantage of this scenario is you need not to install any documentum in the asp.net application machine.

You can simply call DFS webservice to fetch the document.

DFS will be installed along with the Content server.

Berry67

I Know that with D6 more things can be done with web service. I do not know in detail about this. Is it possible that you give me some more details.

Just to make sure that i understand it. System a is the consumer programm. System b is de documentum web service. System a calls the web service of b to 'sent' the document to system a. The user see the document. In our case the user will see almost every time a pdf.

System a in our case is a asp.net based software solution.

How will - lets say the PDF - be deliverd to a? What will the programm code be? .....

Hopefully you can help.

zhou_simonq

As suggested by others, you can take advantage of DFS, which is a web service approach to Documentum.

Currently, DFS provides .NET and Java productivity layer. Of course, you can consume the web services using bare-WSDL.

ObjectService.Get() can satisfy your needs. For more information, pls refer to DFS dev guide.

Btw, DFS is shipped with Content Server installation.

- simon

aflowers001

Use DFS within the ASP.NET side to communicate with the content server to get the actual content relating to your r_object_id.

Something like

IObjectService objectService;

ServiceFactory serviceFactory = ServiceFactory.Instance;
objectService = serviceFactory.GetRemoteService<IObjectService>(_serviceContext);

ObjectIdentity objIdentity = new ObjectIdentity(new ObjectId(objectId), _repository);
ObjectIdentitySet objectIdSet = new ObjectIdentitySet();

List<ObjectIdentity> objIdList = objectIdSet.Identities;
objIdList.Add(objIdentity);

OperationOptions operationOptions = new OperationOptions();

operationOptions.ContentProfile.UrlReturnPolicy = UrlReturnPolicy.NEVER;
operationOptions.ContentProfile.FormatFilter = FormatFilter.ANY;

DataPackage dataPackage = objectService.Get(objectIdSet, operationOptions);

DataObject dataObject = dataPackage.DataObjects[0];

// get the content as an array of bytes - this is the file
Byte[] bytes = dataObject.Contents[0].GetAsByteArray();

Once the ASP.NET has the binary content it is a simple matter of displaying this back to the user, either inline if it's a PDF or via whatever method the client browser decides to take.

There is also the potential to look at UCF.NET and embed this in your .NET site such that it can have UCf in the client browser and this can then communicate with the content server to retrieve the file and take the necessary client action, i.e. open it. I'm not aware of the current state of UCF.NET but if you look around the community forums you should get an idea.

Berry67

Thanks for all your time guys and great ideas.