Package org.eclipse.jetty.websocket.jsr356.server.deploy

Class WebSocketServerContainerInitializer

java.lang.Object

org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer

All Implemented Interfaces:

javax.servlet.ServletContainerInitializer

public class WebSocketServerContainerInitializer
extends Object
implements javax.servlet.ServletContainerInitializer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	WebSocketServerContainerInitializer.Configurator
static class	WebSocketServerContainerInitializer.ContextDestroyListener	DestroyListener

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ADD_DYNAMIC_FILTER_KEY
static final String	ATTR_JAVAX_SERVER_CONTAINER	The ServletContext attribute key name for the ServerContainer per javax.websocket spec 1.0 final section 6.4 Programmatic Server Deployment
static final String	ENABLE_KEY
static final String	HTTPCLIENT_ATTRIBUTE

Constructor Summary

Constructors

Constructor	Description
WebSocketServerContainerInitializer()

Method Summary

Modifier and Type	Method	Description
static void	configure(org.eclipse.jetty.servlet.ServletContextHandler context, WebSocketServerContainerInitializer.Configurator configurator)	Configure the ServletContextHandler to call onStartup(Set, ServletContext) during the ServletContext initialization phase.
static ServerContainer	configureContext(javax.servlet.ServletContext context, org.eclipse.jetty.servlet.ServletContextHandler jettyContext)	Deprecated. use configure(ServletContextHandler, Configurator) instead
static ServerContainer	configureContext(org.eclipse.jetty.servlet.ServletContextHandler context)	Deprecated. use configure(ServletContextHandler, Configurator) instead
static ServerContainer	initialize(org.eclipse.jetty.servlet.ServletContextHandler context)	Immediately initialize the ServletContext with the default (and empty) ServerContainer.
static boolean	isEnabledViaContext(javax.servlet.ServletContext context, String keyName, boolean defValue)	Test a ServletContext for init-param or attribute at keyName for true or false setting that determines if the specified feature is enabled (or not).
void	onStartup(Set<Class<?>> c, javax.servlet.ServletContext context)

Methods inherited from class java.lang.Object

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

Field Details

ATTR_JAVAX_SERVER_CONTAINER

public static final String ATTR_JAVAX_SERVER_CONTAINER

The ServletContext attribute key name for the ServerContainer per javax.websocket spec 1.0 final section 6.4 Programmatic Server Deployment

ENABLE_KEY

public static final String ENABLE_KEY

See Also:

• Constant Field Values

ADD_DYNAMIC_FILTER_KEY

public static final String ADD_DYNAMIC_FILTER_KEY

See Also:

• Constant Field Values

HTTPCLIENT_ATTRIBUTE

public static final String HTTPCLIENT_ATTRIBUTE

See Also:

• Constant Field Values

Constructor Details

WebSocketServerContainerInitializer

public WebSocketServerContainerInitializer()

Method Details

isEnabledViaContext

public static boolean isEnabledViaContext(javax.servlet.ServletContext context,
 String keyName,
 boolean defValue)

Test a ServletContext for init-param or attribute at keyName for true or false setting that determines if the specified feature is enabled (or not).

Parameters:

context - the context to search

keyName - the key name

defValue - the default value, if the value is not specified in the context

Returns:

the value for the feature key

configureContext

@Deprecated
public static ServerContainer configureContext(org.eclipse.jetty.servlet.ServletContextHandler context)
                                        throws javax.servlet.ServletException

Deprecated.

use configure(ServletContextHandler, Configurator) instead

Parameters:

context - the ServletContextHandler to use

Returns:

a configured ServerContainer instance

Throws:

javax.servlet.ServletException - if the WebSocketUpgradeFilter cannot be configured

configureContext

@Deprecated
public static ServerContainer configureContext(javax.servlet.ServletContext context,
 org.eclipse.jetty.servlet.ServletContextHandler jettyContext)
                                        throws javax.servlet.ServletException

Deprecated.

use configure(ServletContextHandler, Configurator) instead

Parameters:

context - not used

jettyContext - the ServletContextHandler to use

Returns:

a configured ServerContainer instance

Throws:

javax.servlet.ServletException - if the WebSocketUpgradeFilter cannot be configured

initialize

public static ServerContainer initialize(org.eclipse.jetty.servlet.ServletContextHandler context)
                                  throws javax.servlet.ServletException

Immediately initialize the ServletContext with the default (and empty) ServerContainer.

This method is typically called from onStartup(Set, ServletContext) itself or from another dependent ServletContainerInitializer that requires minimal setup to be performed.

This method SHOULD NOT BE CALLED by users of Jetty. Use the configure(ServletContextHandler, Configurator) method instead.

There is no enablement check here, and no automatic deployment of endpoints at this point in time. It merely sets up the ServletContext so with the basics needed to start configuring for `javax.websocket.server` based endpoints.

Parameters:

context - the context to work with

Returns:

the default ServerContainer for this context

Throws:

javax.servlet.ServletException

configure

public static void configure(org.eclipse.jetty.servlet.ServletContextHandler context,
 WebSocketServerContainerInitializer.Configurator configurator)

Configure the ServletContextHandler to call onStartup(Set, ServletContext) during the ServletContext initialization phase.

Parameters:

context - the context to add listener to

configurator - the lambda that is called to allow the ServerContainer to be configured during the ServletContext initialization phase

onStartup

public void onStartup(Set<Class<?>> c,
 javax.servlet.ServletContext context)
               throws javax.servlet.ServletException

Specified by:

onStartup in interface javax.servlet.ServletContainerInitializer

Throws:

javax.servlet.ServletException