org.crsh.plugin

Class WebPluginLifeCycle

java.lang.Object

org.crsh.plugin.PluginLifeCycle

org.crsh.plugin.WebPluginLifeCycle

All Implemented Interfaces:

EventListener, javax.servlet.ServletContextListener

public class WebPluginLifeCycle
extends PluginLifeCycle
implements javax.servlet.ServletContextListener

Field Summary

Fields

Modifier and Type	Field and Description
private static Map<String,PluginContext>	contextMap .
private static Object	lock .
private boolean	registered .

Fields inherited from class org.crsh.plugin.PluginLifeCycle

log

Constructor Summary

Constructors

Constructor and Description
WebPluginLifeCycle()

Method Summary

Methods

Modifier and Type	Method and Description
void	contextDestroyed(javax.servlet.ServletContextEvent sce)
void	contextInitialized(javax.servlet.ServletContextEvent sce)
protected FS	createCommandFS(javax.servlet.ServletContext context) Create the command file system, this method binds the /WEB-INF/crash/commands/ path of the servlet context.
protected FS	createConfFS(javax.servlet.ServletContext context) Create the conf file system, this method binds the /WEB-INF/crash/ path of the servlet context.
protected PluginDiscovery	createDiscovery(javax.servlet.ServletContext context, ClassLoader classLoader) Create the service loader discovery, this can be subclassed to provide an implementation, the current implementation returns a ServiceLoaderDiscovery instance.
static PluginContext	getPluginContext(javax.servlet.ServletContext sc) Returns a plugin context associated with the servlet context or null if such context does not exist.

Methods inherited from class org.crsh.plugin.PluginLifeCycle

getConfig, getContext, setConfig, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

lock

private static final Object lock

.

contextMap

private static final Map<String,PluginContext> contextMap

.

registered

private boolean registered

.

Constructor Detail

WebPluginLifeCycle

public WebPluginLifeCycle()

Method Detail

getPluginContext

public static PluginContext getPluginContext(javax.servlet.ServletContext sc)
                                      throws NullPointerException

Returns a plugin context associated with the servlet context or null if such context does not exist.

Parameters:

sc - the servlet context

Returns:

the associated plugin context

Throws:

NullPointerException - if the servlet context argument is null

createDiscovery

protected PluginDiscovery createDiscovery(javax.servlet.ServletContext context,
                              ClassLoader classLoader)

Create the service loader discovery, this can be subclassed to provide an implementation, the current implementation returns a ServiceLoaderDiscovery instance.

Parameters:

context - the servlet context

classLoader - the class loader

Returns:

the plugin discovery

contextInitialized

public void contextInitialized(javax.servlet.ServletContextEvent sce)

Specified by:

contextInitialized in interface javax.servlet.ServletContextListener

createCommandFS

protected FS createCommandFS(javax.servlet.ServletContext context)

Create the command file system, this method binds the /WEB-INF/crash/commands/ path of the servlet context.

Parameters:

context - the servlet context

Returns:

the command file system

createConfFS

protected FS createConfFS(javax.servlet.ServletContext context)

Create the conf file system, this method binds the /WEB-INF/crash/ path of the servlet context.

Parameters:

context - the servlet context

Returns:

the conf file system

contextDestroyed

public void contextDestroyed(javax.servlet.ServletContextEvent sce)

Specified by:

contextDestroyed in interface javax.servlet.ServletContextListener