Importan Topic. Bigger File Dowload/Upload with resume feature

Hi All
How do I download/upload bigger files(like 10 GB) using servlet. For example if I try upload 10 GB file and if I got disconnected around 1GB, I would like to know how do I resume the upload from where I got disconnected. Is anybody got sample code for upload/dowload with Resume feature.
Thanks
Dhamo

Where do you want to upload it to?
A ftp server?
http://www.javaworld.com/javaworld/jw-04-2003/jw-0404-ftp.html

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TYPE RT1 IS RECORD (
val MTG_VERSION.VERSION%TYPE
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Greetings all, may I ask your help for Peformance Issues?
Background:
I tried to create a ASP.NET Web Page to download/upload/list SharePoint file and deployed to IIS website in same application server (will NOT use web part as some users are NOT allowed to direct access confidential workspace)
Besides, for Audit Log record purpose, the page will impersonate (without password) the logged in user:
SPUserToken userToken = web.AllUsers[user].UserToken;
SPSite s = new SPSite(siteStr, userToken);
For File Listing, the web service can provide fast response, and we are using service A/C for connection (as no auting for listing, but require audit for file download upload)
Several implemeation options tested for File Downloiad / Upload, but issues occured and finding listed below:
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1) SharePoint Object Model
When I open Site (using new SPSite), it's too slow to respond. (under 1s for all operations, but require 10~50s for open SPSIte. e.g.
using(SPSite s = new SPSite(siteStr) //50s
How can I download/upload file without open SPSite object (using SharePoint object model, but user token should be kept to allow SHarePoint identifiy user actions. e.g. Updated by Tom, NOT system administrator)?
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For file download, I tried to use SharePoint Web Service for download file, it's quick but how can SharePoint record the audit log to downloaded user, and not service A/C? ( e.g. View by Tom, NOT system administrator)
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3) HTTP Request API (for file download)
As mentioned in point 2, if the system cannot get password from user, SharePoint also recorded service A/C in audit log... ><
Thank you for your kine attention.
.NET Beginner 3.5

Thank you for prompt response, please find my reply with Underline:
Hi,
Maybe I'm not quite clear about the architecture you have now.
Is your asp.net application deployed in separate IIS site but in the same physical server as SharePoint?
Yes
"we are using service A/C for connection", can you please explain the 'A/C'?
Domain User, Local Admin and also SharePoint Service Admin A/C
Opening SPSite is relatively slower but shouldn't take 50 sec. However it depends on your server hardware configuration. You should meet the minimum hardware requirements for SharePoint.
Assigned double resources based on minimum hardware requirements.
For details, 50s is the load test result. But for other SharePoint operation, it takes around/under 3s reponse time.
Are you using SharePoint Audit log? Exactly If so then why don't you just put the hyperlink to the documents in your asp.net page. User maybe have to login once in SharePoint site but
it depends on your security architecture. For example if both of your sites in local intranet and you are using windows integrated authentication, SSO will work automatically User is NOT allowed
to access SharePoint site/server (not implemented for sepreate server yet, as performance issues occured for
separate site in same server) directly from Internet, the
middle server with web interface created for user request.
Whatever I understands gives me the feeling that you download the file using HTTPWebRequest C# class. However regarding security it depends on how authentication is setup in asp.net web site and in sharepoint. If both site uses windows integrated security
and they are in the same server, you can use the following code snippet:
using (WebClient webClient = new WebClient())
webClient.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
webClient.DownloadFile("file ur in sharepoint", "download directory");
Thanks, will try and reply later
But still, as I've mentioned, not quite clear about the whole architecture.
A) Request Handling
1) User use browser to request file listing and/or download file (hereafter called: File Download Request) from custom ASP.NET page (Let's say In Server 1, IIS 1)
2) ASP.NET　page or File Handler ashx (Server 1, IIS 1) call custom web service, SharePoint deault/OOTB web service or using SharePoint Object Model to access SharePoint Document Library (in Server 1,
IIS 2)
3) Both SharePoint and IIS Web Site
(Server 1, IIS 1 & IIS2) using the same service A/C
4) The web service , File Handler return file obeject to IIS1
5) IIS 1 reply File Download Request to user
B) Application Architecture (In testing environment)
1) no load balancing
2) 1 DB server (Server 2)
3) 1 Application Server (with IIS 1 - ASP.NET, IIS 2, SharePoint Web Site with default SharePoint Web Service, IIS 3 SharePoint Admin Site & IIS 4 Custom SharePoint Web Service)
4) Sepreate AD Server (Server 3)
Thanks,
Sohel Rana
http://ranaictiu-technicalblog.blogspot.com
.NET Beginner 3.5

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Hello Experts,
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I debugged the job using JDBG, still it was uploadig the file sometime and many a times
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The necesaary piece of code for your reference is :
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TRANSFER cl_abap_char_utilities=>cr_lf TO lv_full_file_name_lg NO END OF LINE.
ENDLOOP.
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HTTP_SCRAMBLE
FTP_CONNECT
FTP_COMMAND_LIST
FTP_DISCONNECT
RFC_CONNECTION_CLOSE
Please mail if you want to view anything else.
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Sumit

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Dear All,
We have already implemented successfully File-PI-File scenario in which files are picked from a certain folder and is converted into a different format and is sent to another folder. Now I want to add another feature to the scenario that a mail should trigger every 24 hrs or 12 hrs which should inform regarding how many files has been processed during that period along with the file names.
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Regards,
NJ

>
nishu jain wrote:
> Dear All,
>
> We have already implemented successfully File-PI-File scenario in which files are picked from a certain folder and is converted into a different format and is sent to another folder. Now I want to add another feature to the scenario that a mail should trigger every 24 hrs or 12 hrs which should inform regarding how many files has been processed during that period along with the file names.
>
> Is there any standard functionality available to achieve this??
>
> Regards,
> NJ
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You are wright the index file is 308 KB.
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Dear friend,
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http://sharepoint.stackexchange.com/questions/108525/multiple-file-upload-with-metadata-using-rest/108532#108532
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http://sharepointfieldnotes.blogspot.com/2014/04/uploading-documents-and-setting.html
http://www.shillier.com/archive/2013/03/26/uploading-files-in-sharepoint-2013-using-csom-and-rest.aspx
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Jason Guo
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Importan Topic. Bigger File Dowload/Upload with resume feature

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