Package edu.ucsb.nceas.metacat.startup

Class MetacatInitializer

java.lang.Object

edu.ucsb.nceas.metacat.startup.MetacatInitializer

All Implemented Interfaces:

EventListener, javax.servlet.ServletContextListener

@WebListener
public class MetacatInitializer
extends Object
implements javax.servlet.ServletContextListener

A class to initialize Metacat

Author:

tao

Field Summary

Fields

Modifier and Type	Field	Description
static final String	APPLICATION_NAME

Constructor Summary

Constructors

Constructor	Description
MetacatInitializer()

Method Summary

Modifier and Type	Method	Description
void	contextDestroyed(javax.servlet.ServletContextEvent sce)
void	contextInitialized(javax.servlet.ServletContextEvent sce)	An implementation of ServletContextListener that is called automatically by the servlet container on startup, and used to verify that we have the essential components in place and Metacat is initialized.
protected void	initAfterMetacatConfig()	Initialize the remainder of Metacat.
static void	initializeSitemapTask()	Schedule a site map task
static boolean	isFullyInitialized()	Get the status of full-initialization.
protected static void	scheduleSitemapGeneration()	Schedule the sitemap generator to run periodically and update all of the sitemap files for search indexing engines
protected static void	startIndexReGenerator()	Start to re-generate indexes for those haven't been indexed in another thread.

Methods inherited from class java.lang.Object

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

Field Details

APPLICATION_NAME

public static final String APPLICATION_NAME

See Also:

• Constant Field Values

Constructor Details

MetacatInitializer

public MetacatInitializer()

Method Details

contextInitialized

public void contextInitialized(javax.servlet.ServletContextEvent sce)

An implementation of ServletContextListener that is called automatically by the servlet container on startup, and used to verify that we have the essential components in place and Metacat is initialized. So it can run successfully.

Specified by:

contextInitialized in interface javax.servlet.ServletContextListener

Parameters:

ServletContextEvent - the ServletContextEvent object will be used in Metacat

contextDestroyed

public void contextDestroyed(javax.servlet.ServletContextEvent sce)

Specified by:

contextDestroyed in interface javax.servlet.ServletContextListener

initAfterMetacatConfig

protected void initAfterMetacatConfig()
                               throws ServiceException,
javax.servlet.ServletException,
edu.ucsb.nceas.utilities.PropertyNotFoundException,
SQLException,
edu.ucsb.nceas.utilities.UtilException

Initialize the remainder of Metacat. This is the part that can only be initialized after metacat properties have been configured.

Throws:

ServiceException

javax.servlet.ServletException

edu.ucsb.nceas.utilities.PropertyNotFoundException

SQLException

edu.ucsb.nceas.utilities.UtilException

initializeSitemapTask

public static void initializeSitemapTask()

Schedule a site map task

scheduleSitemapGeneration

protected static void scheduleSitemapGeneration()

Schedule the sitemap generator to run periodically and update all of the sitemap files for search indexing engines

startIndexReGenerator

protected static void startIndexReGenerator()

Start to re-generate indexes for those haven't been indexed in another thread. It will create a timer to run this task periodically. If the property of "index.regenerate.interval" is less than 0, the thread would NOT run.

isFullyInitialized

public static boolean isFullyInitialized()

Get the status of full-initialization.

Returns:

true if the Metacat instance is fully initialized; false otherwise.