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- package UploadToDrive;
- import com.google.api.client.auth.oauth2.Credential;
- import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
- import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
- import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
- import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
- import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
- import com.google.api.client.http.HttpTransport;
- import com.google.api.client.json.jackson2.JacksonFactory;
- import com.google.api.client.json.JsonFactory;
- import com.google.api.client.util.store.FileDataStoreFactory;
- import com.google.api.services.drive.DriveScopes;
- import com.google.api.services.drive.model.*;
- import com.google.api.services.drive.Drive;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.InputStreamReader;
- import java.util.Arrays;
- import java.util.List;
- public class DriveQuickstart {
- /** Application name. */
- private static final String APPLICATION_NAME =
- "Drive API Quickstart";
- /** Directory to store user credentials for this application. */
- private static final java.io.File DATA_STORE_DIR = new java.io.File(
- System.getProperty("user.home"), ".credentials/drive-java-quickstart.json");
- /** Global instance of the {@link FileDataStoreFactory}. */
- private static FileDataStoreFactory DATA_STORE_FACTORY;
- /** Global instance of the JSON factory. */
- private static final JsonFactory JSON_FACTORY =
- JacksonFactory.getDefaultInstance();
- /** Global instance of the HTTP transport. */
- private static HttpTransport HTTP_TRANSPORT;
- /** Global instance of the scopes required by this quickstart.
- *
- * If modifying these scopes, delete your previously saved credentials
- * at ~/.credentials/drive-java-quickstart.json
- */
- private static final List<String> SCOPES =
- Arrays.asList(DriveScopes.DRIVE_METADATA_READONLY);
- static {
- try {
- HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
- DATA_STORE_FACTORY = new FileDataStoreFactory(DATA_STORE_DIR);
- } catch (Throwable t) {
- t.printStackTrace();
- System.exit(1);
- }
- }
- /**
- * Creates an authorized Credential object.
- * @return an authorized Credential object.
- * @throws IOException
- */
- public static Credential authorize() throws IOException {
- // Load client secrets.
- InputStream in =
- DriveQuickstart.class.getResourceAsStream("C:\TESTINGS\build\classes\main\resources\client_secret.json");
- GoogleClientSecrets clientSecrets =
- GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
- // Build flow and trigger user authorization request.
- GoogleAuthorizationCodeFlow flow =
- new GoogleAuthorizationCodeFlow.Builder(
- HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
- .setDataStoreFactory(DATA_STORE_FACTORY)
- .setAccessType("offline")
- .build();
- Credential credential = new AuthorizationCodeInstalledApp(
- flow, new LocalServerReceiver()).authorize("user");
- System.out.println(
- "Credentials saved to " + DATA_STORE_DIR.getAbsolutePath());
- return credential;
- }
- /**
- * Build and return an authorized Drive client service.
- * @return an authorized Drive client service
- * @throws IOException
- */
- public static Drive getDriveService() throws IOException {
- Credential credential = authorize();
- return new Drive.Builder(
- HTTP_TRANSPORT, JSON_FACTORY, credential)
- .setApplicationName(APPLICATION_NAME)
- .build();
- }
- public static void main(String[] args) throws IOException {
- // Build a new authorized API client service.
- Drive service = getDriveService();
- // Print the names and IDs for up to 10 files.
- FileList result = service.files().list()
- .setPageSize(10)
- .setFields("nextPageToken, files(id, name)")
- .execute();
- List<File> files = result.getFiles();
- if (files == null || files.size() == 0) {
- System.out.println("No files found.");
- } else {
- System.out.println("Files:");
- for (File file : files) {
- System.out.printf("%s (%s)n", file.getName(), file.getId());
- }
- }
- }
- }
- Jul 25, 2016 3:52:03 PM com.google.api.client.util.store.FileDataStoreFactory setPermissionsToOwnerOnly
- WARNING: unable to change permissions for everybody: C:UsersSilverFear.credentialsdrive-java-quickstart.json
- Jul 25, 2016 3:52:03 PM com.google.api.client.util.store.FileDataStoreFactory setPermissionsToOwnerOnly
- WARNING: unable to change permissions for owner: C:UsersSilverFear.credentialsdrive-java-quickstart.json
- Exception in thread "main" java.lang.NullPointerException
- at java.io.Reader.<init>(Reader.java:78)
- at java.io.InputStreamReader.<init>(InputStreamReader.java:72)
- at UploadToDrive.DriveQuickstart.authorize(DriveQuickstart.java:77)
- at UploadToDrive.DriveQuickstart.getDriveService(DriveQuickstart.java:100)
- at UploadToDrive.DriveQuickstart.main(DriveQuickstart.java:109)
- C:UsersSilverFearAppDataLocalNetBeansCache8.1executor-snippetsrun.xml:53: Java returned: 1
- BUILD FAILED (total time: 0 seconds)
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