Fluent Check API

The AuthorizationManager methods introduced in the previous section are complemented with a fluent API that allows for checking permission in two different ways. For example:

boolean salesReportAvailable = authorizationManager.authorize(
                                    "myapp.reports.sales", user);
generateButton.setVisible(salesReportAvailable);

Using the fluent API could be expressed as:

authorizationManager.check("myapp.reports.sales", user)
    .granted(() -> generateButton.setVisible(true))
    .denied(() -> generateButton.setVisible(false));

or also as:

generateButton.setVisible(false);
authorizationManager.check("myapp.reports.sales", user)
    .granted(() -> generateButton.setVisible(true));

Feel free to use the more convenient approach.

The fluent API also works on Resource instances:

Perspective myPerspective;

authorizationManager.check(myPerspective, user)
    .action(ResourceAction.READ)  // Optional, READ is the default
    .granted(() -> generateButton.setVisible(true))
    .denied(() -> generateButton.setVisible(false));