Class AbstractHandler

java.lang.Object

org.eclipse.jetty.util.component.AbstractLifeCycle

org.eclipse.jetty.util.component.ContainerLifeCycle

org.eclipse.jetty.ee9.nested.AbstractHandler

All Implemented Interfaces:

Handler, Container, Destroyable, Dumpable, Dumpable.DumpableContainer, LifeCycle

Direct Known Subclasses:

AbstractHandler.ErrorDispatchHandler, AbstractHandlerContainer, ErrorHandler

@ManagedObject("Jetty Handler")
public abstract class AbstractHandler
extends ContainerLifeCycle
implements Handler

AbstractHandler.

A convenience implementation of Handler that uses the ContainerLifeCycle to provide:

• start/stop behavior
• a bean container
• basic Dumpable support
• a Server reference
• optional error dispatch handling

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AbstractHandler.ErrorDispatchHandler	Deprecated. This class is no longer required as ERROR dispatch is only done if there is an error page target.

Nested classes/interfaces inherited from class AbstractLifeCycle

AbstractLifeCycle.AbstractLifeCycleListener, AbstractLifeCycle.StopException

Nested classes/interfaces inherited from interface Container

Container.InheritedListener, Container.Listener

Nested classes/interfaces inherited from interface Dumpable

Dumpable.DumpableContainer

Nested classes/interfaces inherited from interface LifeCycle

LifeCycle.Listener

Field Summary

Fields inherited from class AbstractLifeCycle

FAILED, STARTED, STARTING, STOPPED, STOPPING

Fields inherited from interface Dumpable

KEY

Constructor Summary

Constructors

Constructor	Description
AbstractHandler()

Method Summary

Modifier and Type	Method	Description
void	destroy()	Destroys the managed Destroyable beans in the reverse order they were added.
protected void	doError(String target, Request baseRequest, jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response)	Deprecated.
protected void	doStart()	Starts the managed lifecycle beans in the order they were added.
protected void	doStop()	Stops the managed lifecycle beans in the reverse order they were added.
Server	getServer()
abstract void	handle(String target, Request baseRequest, jakarta.servlet.http.HttpServletRequest request, jakarta.servlet.http.HttpServletResponse response)	Handle a request.
void	setServer(Server server)

Methods inherited from class ContainerLifeCycle

addBean, addBean, addEventListener, addManaged, contains, dump, dump, dump, dumpObjects, dumpStdErr, getBean, getBeans, getBeans, getContainedBeans, getContainedBeans, installBean, installBean, isAuto, isManaged, isUnmanaged, manage, removeBean, removeBeans, removeEventListener, setBeans, start, stop, unmanage, updateBean, updateBean, updateBeans, updateBeans

Methods inherited from class AbstractLifeCycle

getEventListeners, getState, getState, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, setEventListeners, start, stop, toString

Methods inherited from class Object

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

Methods inherited from interface Container

getCachedBeans, getEventListeners

Methods inherited from interface Dumpable

dumpSelf

Methods inherited from interface Dumpable.DumpableContainer

isDumpable

Methods inherited from interface LifeCycle

addEventListener, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeEventListener, start, stop

Constructor Details

AbstractHandler

public AbstractHandler()

Method Details

handle

public abstract void handle(String target,
 Request baseRequest,
 jakarta.servlet.http.HttpServletRequest request,
 jakarta.servlet.http.HttpServletResponse response)
                     throws IOException,
jakarta.servlet.ServletException

Description copied from interface: Handler

Handle a request.

Specified by:

handle in interface Handler

Parameters:

target - The target of the request - either a URI or a name.

baseRequest - The original unwrapped request object.

request - The request either as the Request object or a wrapper of that request.

response - The response as the Response object or a wrapper of that request.

Throws:

IOException - if unable to handle the request or response processing

jakarta.servlet.ServletException - if unable to handle the request or response due to underlying servlet issue

doError

@Deprecated
protected void doError(String target,
 Request baseRequest,
 jakarta.servlet.http.HttpServletRequest request,
 jakarta.servlet.http.HttpServletResponse response)
                throws IOException,
jakarta.servlet.ServletException

Deprecated.

Deprecated error page generation

Parameters:

target - The target of the request - either a URI or a name.

baseRequest - The original unwrapped request object.

request - The request either as the Request object or a wrapper of that request.

response - The response as the Response object or a wrapper of that request.

Throws:

IOException - if unable to handle the request or response processing

jakarta.servlet.ServletException - if unable to handle the request or response due to underlying servlet issue

doStart

protected void doStart()
                throws Exception

Description copied from class: ContainerLifeCycle

Starts the managed lifecycle beans in the order they were added.

Overrides:

doStart in class ContainerLifeCycle

Throws:

Exception - If there was a problem starting. Will cause a transition to FAILED state

doStop

protected void doStop()
               throws Exception

Description copied from class: ContainerLifeCycle

Stops the managed lifecycle beans in the reverse order they were added.

Overrides:

doStop in class ContainerLifeCycle

Throws:

Exception - If there was a problem stopping. Will cause a transition to FAILED state

setServer

public void setServer(Server server)

Specified by:

setServer in interface Handler

getServer

public Server getServer()

Specified by:

getServer in interface Handler

destroy

public void destroy()

Description copied from class: ContainerLifeCycle

Destroys the managed Destroyable beans in the reverse order they were added.

Specified by:

destroy in interface Destroyable

Specified by:

destroy in interface Handler

Overrides:

destroy in class ContainerLifeCycle