Package com.vaadin.flow.internal

Class 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:
    Serialized Form

    • Method Detail

      • 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<javax.servlet.ServletRegistration> getServletRegistration​(javax.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​(javax.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/*'