Package com.vaadin.flow.osgi.support

Class ServletContainerInitializerClasses

java.lang.Object

com.vaadin.flow.osgi.support.ServletContainerInitializerClasses

public final class ServletContainerInitializerClasses
extends Object

Manages scanned classes inside OSGi container.

It doesn't do anything outside of OSGi.

Since:

Author:

Vaadin Ltd

Constructor Summary

Constructors

Constructor	Description
ServletContainerInitializerClasses()

Method Summary

Modifier and Type	Method	Description
void	addContext(javax.servlet.ServletContext servletContext)	Adds the servletContext to run servlet context initializers against of.
void	addScannedClasses(Map<Long,Collection<Class<?>>> extenderClasses)	Adds scanned classes in active bundles.
boolean	hasInitializers()	Checks whether the servlet initializers are discovered.
void	removeContext(javax.servlet.ServletContext servletContext)	Removes the servletContext from tracking contexts for servlet context initializers.
void	removeScannedClasses(Long bundleId)	Removes classes from the bundle identified by the bundleId.
void	setServletContainerInitializers(Collection<Class<? extends javax.servlet.ServletContainerInitializer>> contextInitializers)	Sets the discovered servlet context initializer classes.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServletContainerInitializerClasses

public ServletContainerInitializerClasses()

Method Detail

setServletContainerInitializers

public void setServletContainerInitializers(Collection<Class<? extends javax.servlet.ServletContainerInitializer>> contextInitializers)

Sets the discovered servlet context initializer classes.

The OSGi bundle tracker is used to scan all classes in bundles and it also scans flow-server module for servlet initializer classes. They are set using this method once they are collected.

Parameters:

contextInitializers - servlet context initializer classes

hasInitializers

public boolean hasInitializers()

Checks whether the servlet initializers are discovered.

Returns:

true if servlet initializers are set, false otherwise

addScannedClasses

public void addScannedClasses(Map<Long,Collection<Class<?>>> extenderClasses)

Adds scanned classes in active bundles.

The map contains a bundle id as a key and classes discovered in the bundle as a value.

Parameters:

extenderClasses - a map with discovered classes in active bundles

removeScannedClasses

public void removeScannedClasses(Long bundleId)

Removes classes from the bundle identified by the bundleId.

When a bundle becomes inactive its classes should not be used anymore. This method removes the classes from the bundle from the collection of discovered classes.

Parameters:

bundleId - the bundle identifier

addContext

public void addContext(javax.servlet.ServletContext servletContext)

Adds the servletContext to run servlet context initializers against of.

Parameters:

servletContext - the servlet context to run servlet context initializers

removeContext

public void removeContext(javax.servlet.ServletContext servletContext)

Removes the servletContext from tracking contexts for servlet context initializers.

Parameters:

servletContext - the servlet context from tracking contexts