com.vaadin.flow.component.polymertemplate

Class NpmTemplateParser

java.lang.Object

com.vaadin.flow.component.polymertemplate.NpmTemplateParser

All Implemented Interfaces:

TemplateParser

public class NpmTemplateParser
extends Object
implements TemplateParser

Npm template parser implementation.

The implementation scans all JsModule annotations for the given template class and tries to find the one that contains template definition using the tag name.

The class is Singleton. Use DefaultTemplateParser.getInstance() to get its instance.

Author:

Vaadin Ltd

See Also:

BundleParser

Nested Class Summary

Nested classes/interfaces inherited from interface com.vaadin.flow.component.polymertemplate.TemplateParser

TemplateParser.TemplateData

Method Summary

Modifier and Type	Method and Description
static TemplateParser	getInstance()
TemplateParser.TemplateData	getTemplateContent(Class<? extends PolymerTemplate<?>> clazz, String tag, VaadinService service) Gets the template data which contains a JSOUP Element representing the template content and the template uri.
protected boolean	isStatsFileReadNeeded(VaadinService service) Check status to see if stats.json needs to be loaded and parsed.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static TemplateParser getInstance()

getTemplateContent

public TemplateParser.TemplateData getTemplateContent(Class<? extends PolymerTemplate<?>> clazz,
                                                      String tag,
                                                      VaadinService service)

Description copied from interface: TemplateParser

Gets the template data which contains a JSOUP Element representing the template content and the template uri.

Specified by:

getTemplateContent in interface TemplateParser

Parameters:

clazz - the template class

tag - the template tag name

service - the related Vaadin service

Returns:

the template data

isStatsFileReadNeeded

protected boolean isStatsFileReadNeeded(VaadinService service)
                                 throws IOException

Check status to see if stats.json needs to be loaded and parsed.

Always load if jsonStats is null, never load again when we have a bundle as it never changes, always load a new stats if the hash has changed and we do not have a bundle.

Parameters:

service - the Vaadin service.

Returns:

true if we need to re-load and parse stats.json, else false

Throws:

IOException