Package com.vaadin.flow.server

Class PwaRegistry

java.lang.Object

com.vaadin.flow.server.PwaRegistry

All Implemented Interfaces:

Serializable

public class PwaRegistry
extends Object
implements Serializable

Registry for PWA data. Includes:

• PwaConfiguration - basic info
• List of PwaIcon:s - different sizes of icons for header and manifest
• Offline page
• Manifest json
• Service worker

Since:

1.2

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
PwaRegistry(PWA pwa, javax.servlet.ServletContext servletContext)	Creates a new PwaRegistry instance.

Method Summary

Modifier and Type	Method	Description
List<PwaIcon>	getHeaderIcons()	List of PwaIcon:s that should be added to header.
List<PwaIcon>	getIcons()	List of all icons managed by PwaRegistry.
static List<PwaIcon>	getIconTemplates(String baseName)	Gets all PWA icon variants for the give base icon.
static PwaRegistry	getInstance(javax.servlet.ServletContext servletContext)	Gets the pwa registry for the given servlet context.
List<PwaIcon>	getManifestIcons()	List of PwaIcon:s that should be added to manifest.webmanifest.
String	getManifestJson()	manifest.webmanifest contents as a String.
String	getOfflineHtml()	Static offline page as String.
PwaConfiguration	getPwaConfiguration()
String	getRuntimeServiceWorkerJs()	sw-runtime.js (service worker JavaScript for precaching runtime generated resources) as a String.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PwaRegistry

public PwaRegistry(PWA pwa,
                   javax.servlet.ServletContext servletContext)
            throws IOException

Creates a new PwaRegistry instance.

Parameters:

pwa - the pwa annotation

servletContext - the context

Throws:

IOException - when icon or offline resources are not found.

Method Detail

getInstance

public static PwaRegistry getInstance(javax.servlet.ServletContext servletContext)

Gets the pwa registry for the given servlet context. If the servlet context has no pwa registry, a new instance is created and assigned to the context.

Parameters:

servletContext - the servlet context for which to get a route registry, not null

Returns:

a registry instance for the given servlet context, not null

getOfflineHtml

public String getOfflineHtml()

Static offline page as String.

Returns:

contents of offline page

getManifestJson

public String getManifestJson()

manifest.webmanifest contents as a String.

Returns:

contents of manifest.webmanifest

getRuntimeServiceWorkerJs

public String getRuntimeServiceWorkerJs()

sw-runtime.js (service worker JavaScript for precaching runtime generated resources) as a String.

Returns:

contents of sw-runtime.js

getHeaderIcons

public List<PwaIcon> getHeaderIcons()

List of PwaIcon:s that should be added to header.

Returns:

List of PwaIcon:s that should be added to header

getManifestIcons

public List<PwaIcon> getManifestIcons()

List of PwaIcon:s that should be added to manifest.webmanifest.

Returns:

List of PwaIcon:s that should be added to manifest.webmanifest

getIcons

public List<PwaIcon> getIcons()

List of all icons managed by PwaRegistry.

Returns:

List of all icons managed by PwaRegistry

getPwaConfiguration

public PwaConfiguration getPwaConfiguration()

getIconTemplates

public static List<PwaIcon> getIconTemplates(String baseName)

Gets all PWA icon variants for the give base icon.

Parameters:

baseName - path of the base icon.

Returns:

list of PWA icons variants.