/**
* Initialize and load our initial database from persistent storage.
*
* @param event The context initialization event
*/
public void contextInitialized(ServletContextEvent event) {
log.info("Initializing memory database plug in from '" + pathname + "'");
// Remember our associated ServletContext
this.context = event.getServletContext();
// Construct a new database and make it available
database = new MemoryUserDatabase();
try {
String path = calculatePath();
if (log.isDebugEnabled()) {
log.debug(" Loading database from '" + path + "'");
}
database.setPathname(path);
database.open();
} catch (Exception e) {
log.error("Opening memory database", e);
throw new IllegalStateException("Cannot load database from '" + pathname + "': " + e);
}
context.setAttribute(DATABASE_KEY, database);
}
/**
* Gracefully shut down this database, releasing any resources that were allocated at
* initialization.
*
* @param event ServletContextEvent to process
*/
public void contextDestroyed(ServletContextEvent event) {
log.info("Finalizing memory database plug in");
if (database != null) {
try {
database.close();
} catch (Exception e) {
log.error("Closing memory database", e);
}
}
context.removeAttribute(DATABASE_KEY);
context.removeAttribute(PROTOCOLS_KEY);
database = null;
context = null;
}