Package com.vaadin.flow.internal

Class BootstrapHandlerHelper

java.lang.Object
com.vaadin.flow.internal.BootstrapHandlerHelper
All Implemented Interfaces:
Serializable
public final class BootstrapHandlerHelper extends Object implements Serializable
Helper methods for use in bootstrapping.

For internal use only. May be renamed or removed in a future release.

See Also:

  • Method Details

    • getServiceUrl

      public static String getServiceUrl(VaadinRequest vaadinRequest)
      Gets the service URL as a URL relative to the request URI.
      Parameters:
      vaadinRequest - the request
      Returns:
      the relative service URL

    • getPushURL

      public static String getPushURL(VaadinSession vaadinSession, VaadinRequest vaadinRequest)
      Gets the push URL as a URL relative to the request URI.
      Parameters:
      vaadinSession - the session
      vaadinRequest - the request
      Returns:
      the relative push URL

    • determinePushServletMapping

      public static String determinePushServletMapping(VaadinSession vaadinSession)

    • getCleanedPushServletMapping

      public static String getCleanedPushServletMapping(String pushServletMapping)
      Cleans up the given push servlet mapping value for proper use. Effectively makes sure it starts and ends with a '/', and removes possible '/*' at the end.
      Parameters:
      pushServletMapping - Original pushServletMapping value
      Returns:
      cleaned-up value, or null if the original value is blank.

    • getServletRegistration

      public static Optional<jakarta.servlet.ServletRegistration> getServletRegistration(jakarta.servlet.ServletConfig servletConfig)
      Returns a ServletRegistration for the given ServletConfig, if available.
      Parameters:
      servletConfig - ServletConfig to find the registration for.
      Returns:
      an optional ServletRegistration, or an empty optional if a registration is not available.

    • findFirstUrlMapping

      public static String findFirstUrlMapping(jakarta.servlet.ServletRegistration registration)
      Returns the first of sorted URL mappings of the given ServletRegistration, ignoring '/VAADIN/*' and '/vaadinServlet/*' mapping.
      Parameters:
      registration - ServletRegistration from which to look up the mappings.
      Returns:
      first URL mapping, ignoring '/VAADIN/*' and '/vaadinServlet/*'