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Overview

A simple version of the Google Drive client written in Java.

It applies the Google Drive Java API (https://developers.google.com/drive/web/quickstart/quickstart-java).

Environment Setup

  1. Install the Eclipse 4+ (http://www.eclipse.org/), and make sure Maven plugin is available.
  2. (Optional) The Maven plugin is not availble in your Eclipse, install it using the update site (http://www.eclipse.org/m2e/download/).
  3. Install the latest Maven command-line tool (http://maven.apache.org/download.cgi)

Importing the Project into Eclipse

  1. File->Import->Maven->Existing Maven Projects
  2. Select the directory containing the pom.xml file
  3. Finish

Building the Project for the First Time

  1. Right-click on the project root folder->Maven->Update Project

Configure Google Drive API Credential

  1. Please follow the instructions to setup the Google account credential at: https://developers.google.com/drive/web/quickstart/quickstart-java#step_1_enable_the_drive_api
  2. When creating the Client ID, choose: "OAuth Create new Client Id" -> "Installed application" (Other)
  3. Copy and paste the CLIENT ID and CLIENT SECRET in GoogleDriveServiceProvider.java

Running the Project Locally

  1. Locate the App.java in src/main/java source folder and right-click on it->Run As->Run Configurations, and fill a folder name in Program Parameters, such as "/mydrive/" or "C:\doc".
  2. When the program is running, you can copy/modify/delete files in that folder and check if the changes have been synced to your Google Drive account.

Note

  1. In order to simplify the function, all the files will be sync-ed to the root folder in your Google Drive.
  2. Only the first-level files will be monitored in your local folder. Sub-directories will not be monitored.
  3. The project has been configured to use JDK 7. If you use other versions installed, please modify the pom.xml file. However, JDK 7+ (or 8) is recommended.

Resources

To learn the core techniques used in this program, please read:

  1. Watching a Directory for Changes. http://docs.oracle.com/javase/tutorial/essential/io/notification.html
  2. Quickstart: Run a Drive App in Java. https://developers.google.com/drive/web/quickstart/quickstart-java