/** * $RCSfile: $ * $Revision: $ * $Date: $ * * Copyright (C) 2007 Jive Software. All rights reserved. * * This software is published under the terms of the GNU Public License (GPL), * a copy of which is included in this distribution. */ package org.jivesoftware.openfire.pubsub; import org.jivesoftware.util.LocaleUtils; import org.jivesoftware.util.Log; import java.util.Queue; import java.util.TimerTask; /** * A timed maintenance task that updates the database by adding and/or * removing <code>PublishedItem</code>s in regular intervals. * * @author Matt Tucker */ public class PublishedItemTask extends TimerTask { /** * Queue that holds the items that need to be added to the database. */ private Queue<PublishedItem> itemsToAdd = null; /** * Queue that holds the items that need to be deleted from the database. */ private Queue<PublishedItem> itemsToDelete = null; /** * The service to perform the published item tasks on. */ private PubSubService service = null; /** * The number of items to save on each run of the maintenance process. */ private int items_batch_size = 50; public PublishedItemTask(PubSubService service) { this.service = service; this.itemsToAdd = service.getItemsToAdd(); this.itemsToDelete = service.getItemsToDelete(); } public void run() { try { PublishedItem entry; boolean success; // Delete from the database items contained in the itemsToDelete queue for (int index = 0; index <= items_batch_size && !itemsToDelete.isEmpty(); index++) { entry = itemsToDelete.poll(); if (entry != null) { success = PubSubPersistenceManager.removePublishedItem(service, entry); if (!success) { itemsToDelete.add(entry); } } } // Save to the database items contained in the itemsToAdd queue for (int index = 0; index <= items_batch_size && !itemsToAdd.isEmpty(); index++) { entry = itemsToAdd.poll(); if (entry != null) { success = PubSubPersistenceManager.createPublishedItem(service, entry); if (!success) { itemsToAdd.add(entry); } } } } catch (Throwable e) { Log.error(LocaleUtils.getLocalizedString("admin.error"), e); } } }