Java Convert Int To Byte Array Download LINK Free

I have a web server which will read large binary files (several megabytes) into byte arrays. The server could be reading several files at the same time (different page requests), so I am looking for the most optimized way for doing this without taxing the CPU too much. Is the code below good enough?

java convert int to byte array download free

Download File: https://www.google.com/url?q=https%3A%2F%2Ftinourl.com%2F2u4rHE&sa=D&sntz=1&usg=AOvVaw0TqwGo_2OuqkLx-l4uz-gM

Depending on the frequency of operations, the size of the files, and the number of files you're looking at, there are other performance issues to take into consideration. One thing to remember, is that each of your byte arrays will be released at the mercy of the garbage collector. If you're not caching any of that data, you could end up creating a lot of garbage and be losing most of your performance to % Time in GC. If the chunks are larger than 85K, you'll be allocating to the Large Object Heap(LOH) which will require a collection of all generations to free up (this is very expensive, and on a server will stop all execution while it's going on). Additionally, if you have a ton of objects on the LOH, you can end up with LOH fragmentation (the LOH is never compacted) which leads to poor performance and out of memory exceptions. You can recycle the process once you hit a certain point, but I don't know if that's a best practice.

: b/19236190 */ display: none; } .kd-tabbed-horz > article > pre /* Remove extra spacing */ margin: 0; devsite-selector > section[active] /* Remove code section padding */ padding: 0; .filepath color: #fff; margin: 6px; max-width: calc(100% - 160px); /* Give at least 160px for the "View on GitHub" button. */ text-overflow: ellipsis; text-shadow: rgba(0,0,0,0.1) 1px 1px; overflow: hidden; .view-on-github text-shadow: rgba(12,12,12,0.1) 1px 1px; .github-docwidget-include border-radius: 0 !important; margin: 0 -1px; drive/snippets/drive_v3/src/main/java/DownloadFile.java View on GitHub import com.google.api.client.googleapis.json.GoogleJsonResponseException;import com.google.api.client.http.HttpRequestInitializer;import com.google.api.client.http.javanet.NetHttpTransport;import com.google.api.client.json.gson.GsonFactory;import com.google.api.services.drive.Drive;import com.google.api.services.drive.DriveScopes;import com.google.auth.http.HttpCredentialsAdapter;import com.google.auth.oauth2.GoogleCredentials;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.OutputStream;import java.util.Arrays;/* Class to demonstrate use-case of drive's download file. */public class DownloadFile /** * Download a Document file in PDF format. * * @param realFileId file ID of any workspace document format file. * @return byte array stream if successful, @code null otherwise. * @throws IOException if service account credentials file not found. */ public static ByteArrayOutputStream downloadFile(String realFileId) throws IOException /* Load pre-authorized user credentials from the environment. TODO(developer) - See for guides on implementing OAuth2 for your application.*/ GoogleCredentials credentials = GoogleCredentials.getApplicationDefault() .createScoped(Arrays.asList(DriveScopes.DRIVE_FILE)); HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter( credentials); // Build a new authorized API client service. Drive service = new Drive.Builder(new NetHttpTransport(), GsonFactory.getDefaultInstance(), requestInitializer) .setApplicationName("Drive samples") .build(); try OutputStream outputStream = new ByteArrayOutputStream(); service.files().get(realFileId) .executeMediaAndDownloadTo(outputStream); return (ByteArrayOutputStream) outputStream; catch (GoogleJsonResponseException e) // TODO(developer) - handle error appropriately System.err.println("Unable to move file: " + e.getDetails()); throw e; Python /* Remove extra DevSite2 margin */ .github-docwidget-gitinclude-code devsite-code, devsite-selector>section>devsite-code, devsite-selector>section>.github-docwidget-include, devsite-selector>section>.github-docwidget-gitinclude-code>devsite-code margin: 0; /* Disables includecode margin */ .github-docwidget-gitinclude-code .prettyprint margin: 0; .ds-selector-tabs > section > p /* Remove extra : b/19236190 */ display: none; .kd-tabbed-horz > article > pre /* Remove extra spacing */ margin: 0; devsite-selector > section[active] /* Remove code section padding */ padding: 0; .filepath color: #fff; margin: 6px; max-width: calc(100% - 160px); /* Give at least 160px for the "View on GitHub" button. */ text-overflow: ellipsis; text-shadow: rgba(0,0,0,0.1) 1px 1px; overflow: hidden; .view-on-github text-shadow: rgba(12,12,12,0.1) 1px 1px; .github-docwidget-include border-radius: 0 !important; margin: 0 -1px; drive/snippets/drive-v3/file_snippet/download_file.py View on GitHub from __future__ import print_functionimport ioimport google.authfrom googleapiclient.discovery import buildfrom googleapiclient.errors import HttpErrorfrom googleapiclient.http import MediaIoBaseDownloaddef download_file(real_file_id): """Downloads a file Args: real_file_id: ID of the file to download Returns : IO object with location. Load pre-authorized user credentials from the environment. TODO(developer) - See for guides on implementing OAuth2 for the application. """ creds, _ = google.auth.default() try: # create drive api client service = build('drive', 'v3', credentials=creds) file_id = real_file_id # pylint: disable=maybe-no-member request = service.files().get_media(fileId=file_id) file = io.BytesIO() downloader = MediaIoBaseDownload(file, request) done = False while done is False: status, done = downloader.next_chunk() print(F'Download int(status.progress() * 100).') except HttpError as error: print(F'An error occurred: error') file = None return file.getvalue()if __name__ == '__main__': download_file(real_file_id='1KuPmvGq8yoYgbfW74OENMCB5H0n_2Jm9')Node.js /* Remove extra DevSite2 margin */ .github-docwidget-gitinclude-code devsite-code, devsite-selector>section>devsite-code, devsite-selector>section>.github-docwidget-include, devsite-selector>section>.github-docwidget-gitinclude-code>devsite-code margin: 0; /* Disables includecode margin */ .github-docwidget-gitinclude-code .prettyprint margin: 0; .ds-selector-tabs > section > p /* Remove extra : b/19236190 */ display: none; .kd-tabbed-horz > article > pre /* Remove extra spacing */ margin: 0; devsite-selector > section[active] /* Remove code section padding */ padding: 0; .filepath color: #fff; margin: 6px; max-width: calc(100% - 160px); /* Give at least 160px for the "View on GitHub" button. */ text-overflow: ellipsis; text-shadow: rgba(0,0,0,0.1) 1px 1px; overflow: hidden; .view-on-github text-shadow: rgba(12,12,12,0.1) 1px 1px; .github-docwidget-include border-radius: 0 !important; margin: 0 -1px; drive/snippets/drive_v3/file_snippets/download_file.js View on GitHub /** * Downloads a file * @paramstring realFileId file ID * @returnobj file status * */async function downloadFile(realFileId) // Get credentials and build service // TODO (developer) - Use appropriate auth mechanism for your app const GoogleAuth = require('google-auth-library'); const google = require('googleapis'); const auth = new GoogleAuth( scopes: ' ', ); const service = google.drive(version: 'v3', auth); fileId = realFileId; try const file = await service.files.get( fileId: fileId, alt: 'media', ); console.log(file.status); return file.status; catch (err) // TODO(developer) - Handle error throw err; PHP /* Remove extra DevSite2 margin */ .github-docwidget-gitinclude-code devsite-code, devsite-selector>section>devsite-code, devsite-selector>section>.github-docwidget-include, devsite-selector>section>.github-docwidget-gitinclude-code>devsite-code margin: 0; /* Disables includecode margin */ .github-docwidget-gitinclude-code .prettyprint margin: 0; .ds-selector-tabs > section > p /* Remove extra : b/19236190 */ display: none; .kd-tabbed-horz > article > pre /* Remove extra spacing */ margin: 0; devsite-selector > section[active] /* Remove code section padding */ padding: 0; .filepath color: #fff; margin: 6px; max-width: calc(100% - 160px); /* Give at least 160px for the "View on GitHub" button. */ text-overflow: ellipsis; text-shadow: rgba(0,0,0,0.1) 1px 1px; overflow: hidden; .view-on-github text-shadow: rgba(12,12,12,0.1) 1px 1px; .github-docwidget-include border-radius: 0 !important; margin: 0 -1px; drive/snippets/drive_v3/src/DriveDownloadFile.php View on GitHub use Google\Client;use Google\Service\Drive;function downloadFile() try $client = new Client(); $client->useApplicationDefaultCredentials(); $client->addScope(Drive::DRIVE); $driveService = new Drive($client); $realFileId = readline("Enter File Id: "); $fileId = '0BwwA4oUTeiV1UVNwOHItT0xfa2M'; $fileId = $realFileId; $response = $driveService->files->get($fileId, array( 'alt' => 'media')); $content = $response->getBody()->getContents(); return $content; catch(Exception $e) echo "Error Message: ".$e; .NET /* Remove extra DevSite2 margin */ .github-docwidget-gitinclude-code devsite-code, devsite-selector>section>devsite-code, devsite-selector>section>.github-docwidget-include, devsite-selector>section>.github-docwidget-gitinclude-code>devsite-code margin: 0; /* Disables includecode margin */ .github-docwidget-gitinclude-code .prettyprint margin: 0; .ds-selector-tabs > section > p /* Remove extra : b/19236190 */ display: none; .kd-tabbed-horz > article > pre /* Remove extra spacing */ margin: 0; devsite-selector > section[active] /* Remove code section padding */ padding: 0; .filepath color: #fff; margin: 6px; max-width: calc(100% - 160px); /* Give at least 160px for the "View on GitHub" button. */ text-overflow: ellipsis; text-shadow: rgba(0,0,0,0.1) 1px 1px; overflow: hidden; .view-on-github text-shadow: rgba(12,12,12,0.1) 1px 1px; .github-docwidget-include border-radius: 0 !important; margin: 0 -1px; drive/snippets/drive_v3/DriveV3Snippets/DownloadFile.cs View on GitHub using Google.Apis.Auth.OAuth2;using Google.Apis.Download;using Google.Apis.Drive.v3;using Google.Apis.Services;namespace DriveV3Snippets // Class to demonstrate use-case of drive's download file. public class DownloadFile /// /// Download a Document file in PDF format. /// /// file ID of any workspace document format file. /// byte array stream if successful, null otherwise. public static MemoryStream DriveDownloadFile(string fileId) try /* Load pre-authorized user credentials from the environment. TODO(developer) - See for guides on implementing OAuth2 for your application. */ GoogleCredential credential = GoogleCredential .GetApplicationDefault() .CreateScoped(DriveService.Scope.Drive); // Create Drive API service. var service = new DriveService(new BaseClientService.Initializer HttpClientInitializer = credential, ApplicationName = "Drive API Snippets" ); var request = service.Files.Get(fileId); var stream = new MemoryStream(); // Add a handler which will be notified on progress changes. // It will notify on each chunk download and when the // download is completed or failed. request.MediaDownloader.ProgressChanged += progress => switch (progress.Status) case DownloadStatus.Downloading: Console.WriteLine(progress.BytesDownloaded); break; case DownloadStatus.Completed: Console.WriteLine("Download complete."); break; case DownloadStatus.Failed: Console.WriteLine("Download failed."); break; ; request.Download(stream); return stream; catch (Exception e) // TODO(developer) - handle error appropriately if (e is AggregateException) Console.WriteLine("Credential Not found"); else throw; return null; This code sample uses a library method that adds the alt=media URL parameterto the underlying HTTP request.