private void shutdown() {
// shut down all threads
try {
for (Thread t : this.linkQueuerThreadPool) {
if (t.isAlive()) {
t.join(CrawlerConstants.THREAD_JOIN_WAIT_TIME);
}
}
for (Thread t : this.matcherThreadPool) {
if (t.isAlive()) {
t.join(CrawlerConstants.THREAD_JOIN_WAIT_TIME);
}
}
for (Thread t : this.linkExtractorPool) {
if (t.isAlive()) {
t.join(CrawlerConstants.THREAD_JOIN_WAIT_TIME);
}
}
for (Thread t : this.getThreadPool) {
if (t.isAlive()) {
t.join(CrawlerConstants.THREAD_JOIN_WAIT_TIME);
}
}
logger.info(CLASSNAME + ": All threads shut down");
DBWrapper.shutdown();
logger.info(CLASSNAME + ": Database has shut down");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
/** Initialise the database */
private void initialiseDb() {
EntityStore store = DBWrapper.setupDatabase(this.dbEnvDir, false);
this.dao = new CrawlerDao(store);
logger.info(CLASSNAME + " Database initialised");
}
