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org.apache.lenya.cms.scheduler
Class LoadQuartzServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.apache.lenya.cms.scheduler.LoadQuartzServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class LoadQuartzServlet
extends javax.servlet.http.HttpServlet

A simple servlet that starts an instance of a Quartz scheduler.

See Also:

Serialized Form

Field Summary

protected static java.lang.String	ADD
static java.lang.String	CONFIGURATION_ELEMENT
protected static java.lang.String	DELETE
protected static java.lang.String	DOCUMENT_DELETED
protected static java.lang.String	MODIFY
static java.lang.String	PARAMETER_ACTION
static java.lang.String	PARAMETER_DOCUMENT_URL
static java.lang.String	PARAMETER_PUBLICATION_ID
static java.lang.String	PREFIX
static java.lang.String	SERVLET_URL

Constructor Summary

LoadQuartzServlet()

Method Summary

void	deleteDocumentJobs(Document document) Deletes
void	destroy() Shuts down the scheduler.
static void	destroyScheduler() Shuts down the scheduler.
void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Handles a GET request.
void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp) Handles a POST request.
static java.lang.String	getDeleteDocumentRequestURI(java.lang.String port, java.lang.String servletContextPath, Document document) Generates the request URI needed to delete the jobs for a certain document.
protected java.lang.String	getJobId(NamespaceMap schedulerParameters) Extracts the job ID from the scheduler parameters.
static SchedulerWrapper	getScheduler() Returns the scheduler wrapper.
static NamespaceMap	getSchedulerParameters(javax.servlet.http.HttpServletRequest request) Extracts the scheduler parameters from a request.
static LoadQuartzServlet	getServlet(java.lang.String contextPath) Returns the servlet for a certain canonical servlet context path.
java.io.File	getServletContextDirectory() Returns the servlet context path.
protected void	handleRequest(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Handles a servlet request.
void	init(javax.servlet.ServletConfig config) Initializes the servlet.
protected void	logSessionAttributes(javax.servlet.http.HttpServletRequest request) Logs the session attributes of a request.
void	process() Process.
void	restoreJobs() Restores the jobs.
static void	ShutdownHook() This method sets a ShutdownHook to the system This traps the CTRL+C or kill signal and shutdows Correctly the system.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Field Detail

PREFIX

public static final java.lang.String PREFIX

See Also:

Constant Field Values

PARAMETER_ACTION

public static final java.lang.String PARAMETER_ACTION

See Also:

Constant Field Values

PARAMETER_PUBLICATION_ID

public static final java.lang.String PARAMETER_PUBLICATION_ID

See Also:

Constant Field Values

PARAMETER_DOCUMENT_URL

public static final java.lang.String PARAMETER_DOCUMENT_URL

See Also:

Constant Field Values

CONFIGURATION_ELEMENT

public static final java.lang.String CONFIGURATION_ELEMENT

See Also:

Constant Field Values

ADD

protected static final java.lang.String ADD

See Also:

Constant Field Values

MODIFY

protected static final java.lang.String MODIFY

See Also:

Constant Field Values

DELETE

protected static final java.lang.String DELETE

See Also:

Constant Field Values

DOCUMENT_DELETED

protected static final java.lang.String DOCUMENT_DELETED

See Also:

Constant Field Values

SERVLET_URL

public static final java.lang.String SERVLET_URL

See Also:

Constant Field Values

Constructor Detail

LoadQuartzServlet

public LoadQuartzServlet()

Method Detail

getScheduler

public static SchedulerWrapper getScheduler()

Returns the scheduler wrapper.

Returns:

A scheduler wrapper.

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Initializes the servlet.

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Parameters:

config - The servlet configuration.

Throws:

javax.servlet.ServletException - when something went wrong.

process

public void process()
             throws javax.servlet.ServletException,
                    org.quartz.SchedulerException

Process.

Throws:

javax.servlet.ServletException - when an error occurs.

org.quartz.SchedulerException - when an error occurs.

destroy

public void destroy()

Shuts down the scheduler.

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet

destroyScheduler

public static void destroyScheduler()

Shuts down the scheduler.

ShutdownHook

public static void ShutdownHook()
                         throws java.lang.Exception

This method sets a ShutdownHook to the system This traps the CTRL+C or kill signal and shutdows Correctly the system.

Throws:

java.lang.Exception - when something went wrong.

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws java.io.IOException,
                  javax.servlet.ServletException

Handles a GET request.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - The request.

response - The response.

Throws:

java.io.IOException - when an error occured.

javax.servlet.ServletException - when an error occured.

doPost

public void doPost(javax.servlet.http.HttpServletRequest req,
                   javax.servlet.http.HttpServletResponse resp)
            throws javax.servlet.ServletException,
                   java.io.IOException

Handles a POST request.

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

req - The requust.

resp - The response.

Throws:

javax.servlet.ServletException - when an error occured.

java.io.IOException - when an error occured.

handleRequest

protected void handleRequest(javax.servlet.http.HttpServletRequest request,
                             javax.servlet.http.HttpServletResponse response)
                      throws java.io.IOException

Handles a servlet request.

Parameters:

request - The request.

response - The response.

Throws:

java.io.IOException - when something went wrong.

getSchedulerParameters

public static NamespaceMap getSchedulerParameters(javax.servlet.http.HttpServletRequest request)

Extracts the scheduler parameters from a request.

Parameters:

request - The request.

Returns:

A namespace map.

deleteDocumentJobs

public void deleteDocumentJobs(Document document)
                        throws DocumentBuildException,
                               org.quartz.SchedulerException,
                               PublicationException

Deletes

Parameters:

document -

Throws:

DocumentBuildException

org.quartz.SchedulerException

PublicationException

getJobId

protected java.lang.String getJobId(NamespaceMap schedulerParameters)

Extracts the job ID from the scheduler parameters.

Parameters:

schedulerParameters - A namespace map.

Returns:

A string.

logSessionAttributes

protected void logSessionAttributes(javax.servlet.http.HttpServletRequest request)

Logs the session attributes of a request.

Parameters:

request - The request.

getServletContextDirectory

public java.io.File getServletContextDirectory()

Returns the servlet context path.

Returns:

A string.

restoreJobs

public void restoreJobs()
                 throws org.quartz.SchedulerException

Restores the jobs.

Throws:

org.quartz.SchedulerException - when something went wrong.

getServlet

public static LoadQuartzServlet getServlet(java.lang.String contextPath)

Returns the servlet for a certain canonical servlet context path.

Parameters:

contextPath - The canonical servlet context path.

Returns:

A LoadQuartzServlet.

getDeleteDocumentRequestURI

public static java.lang.String getDeleteDocumentRequestURI(java.lang.String port,
                                                           java.lang.String servletContextPath,
                                                           Document document)

Generates the request URI needed to delete the jobs for a certain document.

Parameters:

document - The document.

Returns:

A string.