| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. The ASF licenses this file to You |
| * under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| |
| package org.apache.roller.weblogger.ui.rendering.pagers; |
| |
| import java.util.ArrayList; |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.List; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.roller.planet.business.PlanetManager; |
| import org.apache.roller.planet.pojos.Planet; |
| import org.apache.roller.planet.pojos.SubscriptionEntry; |
| import org.apache.roller.planet.pojos.PlanetGroup; |
| import org.apache.roller.planet.pojos.Subscription; |
| import org.apache.roller.weblogger.business.URLStrategy; |
| import org.apache.roller.weblogger.business.WebloggerFactory; |
| |
| |
| /** |
| * Paging through a collection of planet entries. |
| */ |
| public class PlanetEntriesPager extends AbstractPager { |
| |
| private static Log log = LogFactory.getLog(PlanetEntriesPager.class); |
| |
| private String feedURL = null; |
| private String groupHandle = null; |
| private int sinceDays = -1; |
| private int length = 0; |
| |
| // the collection for the pager |
| private List<SubscriptionEntry> entries = null; |
| |
| // are there more items? |
| private boolean more = false; |
| |
| |
| public PlanetEntriesPager( |
| URLStrategy strat, |
| String feedURL, |
| String groupHandle, |
| String baseUrl, |
| int sinceDays, |
| int page, |
| int length) { |
| |
| super(strat, baseUrl, page); |
| |
| this.feedURL = feedURL; |
| this.groupHandle = groupHandle; |
| this.sinceDays = sinceDays; |
| this.length = length; |
| |
| // initialize the collection |
| getItems(); |
| } |
| |
| |
| public List<SubscriptionEntry> getItems() { |
| |
| if (entries == null) { |
| // calculate offset |
| int offset = getPage() * length; |
| |
| Date startDate = null; |
| if(sinceDays > 0) { |
| Calendar cal = Calendar.getInstance(); |
| cal.setTime(new Date()); |
| cal.add(Calendar.DATE, -1 * sinceDays); |
| startDate = cal.getTime(); |
| } |
| |
| List<SubscriptionEntry> results = new ArrayList<SubscriptionEntry>(); |
| try { |
| PlanetManager planetManager = WebloggerFactory.getWeblogger().getPlanetManager(); |
| Planet planet = planetManager.getWeblogger("default"); |
| |
| List<SubscriptionEntry> subEntries; |
| if (feedURL != null) { |
| Subscription sub = planetManager.getSubscription(feedURL); |
| subEntries = planetManager.getEntries(sub, offset, length+1); |
| } else if (groupHandle != null) { |
| PlanetGroup group = planetManager.getGroup(planet, groupHandle); |
| subEntries = planetManager.getEntries(group, startDate, null, offset, length + 1); |
| } else { |
| PlanetGroup group = planetManager.getGroup(planet, "all"); |
| subEntries = planetManager.getEntries(group, startDate, null, offset, length + 1); |
| } |
| |
| // wrap 'em |
| int count = 0; |
| for (SubscriptionEntry entry : subEntries) { |
| // TODO needs pojo wrapping from planet |
| if (count++ < length) { |
| results.add(entry); |
| } else { |
| more = true; |
| } |
| } |
| |
| } catch (Exception e) { |
| log.error("ERROR: get aggregation", e); |
| } |
| |
| entries = results; |
| } |
| |
| return entries; |
| } |
| |
| |
| public boolean hasMoreItems() { |
| return more; |
| } |
| } |
| |
| |