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Google Cloud Storage JDBC Driver

Rapidly create and deploy powerful Java applications that integrate with Google Cloud Storage.



How to set Google Cloud Storage data as a JDBC data source in FineReport.

The CData JDBC Driver for Google Cloud Storage fully implements the JDBC standard and can provide Google Cloud Storage data connectivity to a wide variety of BI, reporting, and ETL tools and custom applications. In this article, we explain how to set Google Cloud Storage data as JDBC data source in FineReport and view Google Cloud Storage data as a table in the Report Designer.

Set Up a JDBC Data Source of Google Cloud Storage Data

Follow the instruction below to set Google Cloud Storage data as a FineReport database connection.

  1. Copy the cdata.jdbc.googlecloudstorage.jar file from the lib folder in the CData JDBC Driver for Google Cloud Storage installation directory to the lib folder of the FineReport installation directory. You will need to copy the cdata.jdbc.googlecloudstorage.lic file as well.
  2. From the Server tab, select Define Data Connection, click to add a new connection, and click JDBC.

Next we will set up the data connection definition in the window.

  1. Database: Others
  2. JDBC Driver: cdata.jdbc.googlecloudstorage.GoogleCloudStorage Driver
  3. URL: A standard JDBC connection string using semicolon-separated connection properties.

    Authenticate with a User Account

    You can connect without setting any connection properties for your user credentials. After setting InitiateOAuth to GETANDREFRESH, you are ready to connect.

    When you connect, the Google Cloud Storage OAuth endpoint opens in your default browser. Log in and grant permissions, then the OAuth process completes

    Authenticate with a Service Account

    Service accounts have silent authentication, without user authentication in the browser. You can also use a service account to delegate enterprise-wide access scopes.

    You need to create an OAuth application in this flow. See the Help documentation for more information. After setting the following connection properties, you are ready to connect:

    • InitiateOAuth: Set this to GETANDREFRESH.
    • OAuthJWTCertType: Set this to "PFXFILE".
    • OAuthJWTCert: Set this to the path to the .p12 file you generated.
    • OAuthJWTCertPassword: Set this to the password of the .p12 file.
    • OAuthJWTCertSubject: Set this to "*" to pick the first certificate in the certificate store.
    • OAuthJWTIssuer: In the service accounts section, click Manage Service Accounts and set this field to the email address displayed in the service account Id field.
    • OAuthJWTSubject: Set this to your enterprise Id if your subject type is set to "enterprise" or your app user Id if your subject type is set to "user".
    • ProjectId: Set this to the Id of the project you want to connect to.

    The OAuth flow for a service account then completes.

    Built-in Connection String Designer

    For assistance in constructing the JDBC URL, use the connection string designer built into the Google Cloud Storage JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

    java -jar cdata.jdbc.googlecloudstorage.jar

    Fill in the connection properties and copy the connection string to the clipboard.

    When you configure the JDBC URL, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.

    A typical JDBC URL is below:

    jdbc:googlecloudstorage:ProjectId='project1';
  4. Click Connection pool attributes and set Test before getting connections to No.

Click Test connection to ensure you have configured the connection properly. With the connection to Google Cloud Storage set up, you can use it as FineReport data source.

Select Google Cloud Storage Data in the Report Designer.

  1. Click to add a new template data set and select DB query to open the database query window.
  2. Choose the JDBC connection that you created from the dropdown list.
  3. The Google Cloud Storage entities will appear as tables on the left pane.
  4. Write a SELECT statement for the Google Cloud Storage data tables and columns that you want to load.
  5. Click preview and data is shown as table.

With these simple steps, Google Cloud Storage can be used as a JDBC data source in FineReport.