c# - Amazon S3 Stream is too long -

when trying download large file, zip file size 2gb amazon s3, throws exception "stream long" . how reading file amazon stream

  var s3file = new s3fileinfo(client, bucketname, objectkey);   var stream = s3file.openread(); 

is possible read file contents small chunks , merge them locally?

-alan-

    public class buketobjectresult     {         public bool success { get; set; }          public long size { get; set; }      }       public void getbucketobjectdata()     {          try         {              buketobjectresult res = checkfile();              //chunk  divide in small chunks eg : 2gb file : 20mb chunks               int chunksize = (int)(res.size / chunk);              if (!res.success && (res.size == 0 || chunksize <= 0))             {                 res.success = false;                  return ;              }              string filename = "your file name";              long startpostion = 0;              long endposition = 0;              while (startpostion >= 0)             {                 byte[] chunk = new byte[chunksize];                  endposition = chunksize + startpostion;                  if (endposition > res.size) //to rest of file                     endposition = res.size;                  getobjectrequest request = new getobjectrequest                 {                     bucketname = "your bucket name",                     key = "your key",                     byterange = new byterange(startpostion, endposition)                 };                   using (getobjectresponse response = s3client.getobject(request))                 using (stream responsestream = response.responsestream)                 using (filestream filestream = file.open(filename, filemode.append))                 {                      int readindex = readchunk(responsestream, ref chunk);                      startpostion += readindex;                       if (readindex != 0)                     {                         filestream.write(chunk, 0, readindex);                      }                      if (readindex != chunk.length) // didn't read full chunk: we're done (read rest of bytes)                         break;                   }               }              // verify              fileinfo fi = new fileinfo(filename);              if (fi.length == res.size)             {                 res.success = true;             }           }         catch (exception e)         {          }      }      public buketobjectresult checkfile()     {         buketobjectresult res = new buketobjectresult() { success = false};          try         {             listobjectsrequest request = new listobjectsrequest()             {                 bucketname = "bucketname here ",                 delimiter = "/",                 prefix = "location here"             };               listobjectsresponse response = s3client.listobjects(request);                if (response.s3objects != null && response.s3objects.count > 0)             {                 s3object o = response.s3objects.where(x => x.size != 0).firstordefault();                  if (o != null)                 {                      res.success = true;                      res.size = o.size;                   }              }           }         catch (exception e)         {          }          return res;     }