How to upload an image to cloudant database? -

i trying upload image cloudant database, using cloudant client - 2.0.0

here's code looks :

public static void main(string[] args) throws malformedurlexception, exception {      try     {         cloudantclient client = clientbuilder.account("uri").username(user).password(password).build();         system.out.println("server version: " + client.serverversion());          database db = client.database("rss_news", false);          jsonobject obj = new jsonobject();          obj.put("_attachments", new attachment(encodefiletobase64binary("c:/users/public/pictures/sample pictures/desert.jpg"), "image/jpeg"));         obj.put("name", "bhanwar");         db.save(obj);      }     catch (exception e)     {         e.printstacktrace();     } }  // java type can serialized json  private static string encodefiletobase64binary(string filename) throws ioexception {      file file = new file(filename);     system.out.println(file.getname());     byte[] bytes = loadfile(file);     byte[] encoded = base64.encodebase64(bytes);     system.out.println(bytes.length);     string encodedstring = new string(encoded);     system.out.println("---encodedstring---" + encodedstring);     return encodedstring; }  private static byte[] loadfile(file file) throws ioexception {     inputstream = new fileinputstream(file);      long length = file.length();     if (length > integer.max_value)     {         // file large     }     byte[] bytes = new byte[(int) length];      int offset = 0;     int numread = 0;     while (offset < bytes.length && (numread = is.read(bytes, offset, bytes.length - offset)) >= 0)     {         offset += numread;     }      if (offset < bytes.length)     {         throw new ioexception("could not read file " + file.getname());     }      is.close();     return bytes; } 

but not work.

the object gets created on cloudant db, schema not "_attachments" mentioned in doc.

also, attributes length , revops 0.

please suggest.