org.apache.jk.core
Class JkHandler

java.lang.Object
  org.apache.jk.core.JkHandler

All Implemented Interfaces:

java.util.EventListener, javax.management.MBeanRegistration, javax.management.NotificationListener

Direct Known Subclasses:

AprImpl, ChannelShm, ChannelSocket, HandlerDispatch, HandlerRequest, JkCoyoteHandler, JkMX, JniHandler, ModJkMX, WorkerDummy

public class JkHandler

extends java.lang.Object

implements javax.management.MBeanRegistration, javax.management.NotificationListener

Author:

Costin Manolache

Field Summary

protected java.lang.String	domain
static int	ERROR
static int	HANDLE_FLUSH
static int	HANDLE_RECEIVE_PACKET
static int	HANDLE_SEND_PACKET
static int	HANDLE_THREAD_END
protected int	id
static int	LAST
protected javax.management.MBeanServer	mserver
protected java.lang.String	name
protected JkHandler	next
protected java.lang.String	nextName
static int	OK
protected javax.management.ObjectName	oname
protected java.util.Properties	properties
protected WorkerEnv	wEnv

Constructor Summary

JkHandler()

Method Summary

void	addHandlerCallback(JkHandler w) Experimental, will be replaced.
MsgContext	createMsgContext()
void	destroy() Clean up and stop the handler
java.lang.String	getDomain()
int	getId()
java.lang.String	getName()
java.lang.String	getNext()
javax.management.ObjectName	getObjectName()
java.lang.String	getProperty(java.lang.String name)
void	handleNotification(javax.management.Notification notification, java.lang.Object handback)
void	init() Should register the request types it can handle, same style as apache2.
int	invoke(Msg msg, MsgContext mc)
void	pause()
void	postDeregister()
void	postRegister(java.lang.Boolean registrationDone)
void	preDeregister()
javax.management.ObjectName	preRegister(javax.management.MBeanServer server, javax.management.ObjectName oname)
void	resume()
void	setId(int id) Set the id of the worker.
void	setName(java.lang.String s) Set the name of the handler.
void	setNext(JkHandler h) Catalina-style "recursive" invocation.
void	setNext(java.lang.String s)
void	setProperty(java.lang.String name, java.lang.String value)
void	setWorkerEnv(WorkerEnv we)

Methods inherited from class java.lang.Object

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

Field Detail

OK

public static final int OK

See Also:

Constant Field Values

LAST

public static final int LAST

See Also:

Constant Field Values

ERROR

public static final int ERROR

See Also:

Constant Field Values

properties

protected java.util.Properties properties

wEnv

protected WorkerEnv wEnv

next

protected JkHandler next

nextName

protected java.lang.String nextName

name

protected java.lang.String name

id

protected int id

HANDLE_RECEIVE_PACKET

public static final int HANDLE_RECEIVE_PACKET

See Also:

Constant Field Values

HANDLE_SEND_PACKET

public static final int HANDLE_SEND_PACKET

See Also:

Constant Field Values

HANDLE_FLUSH

public static final int HANDLE_FLUSH

See Also:

Constant Field Values

HANDLE_THREAD_END

public static final int HANDLE_THREAD_END

See Also:

Constant Field Values

domain

protected java.lang.String domain

oname

protected javax.management.ObjectName oname

mserver

protected javax.management.MBeanServer mserver

Constructor Detail

JkHandler

public JkHandler()

Method Detail

setWorkerEnv

public void setWorkerEnv(WorkerEnv we)

setName

public void setName(java.lang.String s)

Set the name of the handler. Will allways be called by worker env after creating the worker.

getName

public java.lang.String getName()

setId

public void setId(int id)

Set the id of the worker. We use an id for faster dispatch. Since we expect a decent number of handler in system, the id is unique - that means we may have to allocate bigger dispatch tables. ( easy to fix if needed )

getId

public int getId()

setNext

public void setNext(JkHandler h)

Catalina-style "recursive" invocation. A chain is used for Apache/3.3 style iterative invocation.

setNext

public void setNext(java.lang.String s)

getNext

public java.lang.String getNext()

init

public void init()
          throws java.io.IOException

Should register the request types it can handle, same style as apache2.

Throws:

java.io.IOException

destroy

public void destroy()
             throws java.io.IOException

Clean up and stop the handler

Throws:

java.io.IOException

createMsgContext

public MsgContext createMsgContext()

invoke

public int invoke(Msg msg,
                  MsgContext mc)
           throws java.io.IOException

Throws:

java.io.IOException

setProperty

public void setProperty(java.lang.String name,
                        java.lang.String value)

getProperty

public java.lang.String getProperty(java.lang.String name)

addHandlerCallback

public void addHandlerCallback(JkHandler w)

Experimental, will be replaced. This allows handlers to be notified when other handlers are added.

handleNotification

public void handleNotification(javax.management.Notification notification,
                               java.lang.Object handback)

Specified by:

handleNotification in interface javax.management.NotificationListener

getObjectName

public javax.management.ObjectName getObjectName()

getDomain

public java.lang.String getDomain()

preRegister

public javax.management.ObjectName preRegister(javax.management.MBeanServer server,
                                               javax.management.ObjectName oname)
                                        throws java.lang.Exception

Specified by:

preRegister in interface javax.management.MBeanRegistration

Throws:

java.lang.Exception

postRegister

public void postRegister(java.lang.Boolean registrationDone)

Specified by:

postRegister in interface javax.management.MBeanRegistration

preDeregister

public void preDeregister()
                   throws java.lang.Exception

Specified by:

preDeregister in interface javax.management.MBeanRegistration

Throws:

java.lang.Exception

postDeregister

public void postDeregister()

Specified by:

postDeregister in interface javax.management.MBeanRegistration

pause

public void pause()
           throws java.lang.Exception

Throws:

java.lang.Exception

resume

public void resume()
            throws java.lang.Exception

Throws:

java.lang.Exception