How to monitor file transfer in Windows using Java? -


i writing utility check whether big file has been transferred.

from found online, understand best way have sender send bite-sized file indicate file transfer complete. instance, after sending 10gb video file bigfile.mov, sender sends 1kb bigfile.txt containing checksum or identify file; receiver polls bigfile.txt.

however, in case, approach not open me because have no control of files being sent me. therefore resorting more unreliable approach of polling file number of times in specified intervals, file size , last-modified time.

public static boolean hasfinished(string sfilename, int polls, int interval) {      boolean isdone = true;     file file = new file(sfilename);     long size = file.length();     long lastmodified = file.lastmodified();      if (file.isfile()) {          (int = 0; < polls; i++) {              // sleep bit             try {                 timeunit.seconds.sleep(interval);             } catch (interruptedexception e) {                 e.printstacktrace();             }              system.out.println("checking...");             if (file.length() != size || file.lastmodified() != lastmodified) {                 isdone = false;                 break;             }         }      }      return isdone; }

i writing utility on windows, , test copying large file temp location want (say c:\bigfile.mov). problem that, once file copying begins, seems both file size , last-modified time locked in, when test method while file still being copied, still true result (which not case).

how should change code in case?


Comments

Post a Comment

Popular posts from this blog

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers ...
Read more

keyboard - Smiles and long press feature in Android -

i've created android keyboard. how add features inserting smilies, , using long keypresses display symbols? to create long-press behavior allows select several options pop-up menu, follow guide (specifically pop-up menu section): http://developer.android.com/guide/topics/ui/menus.html smileys (also known emoticons) combination of keys, understood programs , parsed same way. have do, when clicks smiley face on keyboard, simulate pressing of key combination matching emoticon. example, when clicks smiley, should simulate key presses ':' , ')' :). here's list of emoticons: http://en.wikipedia.org/wiki/list_of_emoticons
Read more

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());...
Read more