001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.platform.forum.web.api;
023
024import java.io.Serializable;
025import java.util.ArrayList;
026import java.util.GregorianCalendar;
027import java.util.List;
028
029import org.nuxeo.ecm.core.api.DocumentModel;
030import org.nuxeo.ecm.platform.comment.api.CommentableDocument;
031import org.nuxeo.ecm.platform.forum.workflow.ForumConstants;
032
033public class ThreadAdapterImpl implements ThreadAdapter, Serializable {
034
035    private static final long serialVersionUID = 1876878787587L;
036
037    private final DocumentModel threadDoc;
038
039    private List<DocumentModel> posts;
040
041    private List<DocumentModel> publishedPosts;
042
043    private List<DocumentModel> pendingPosts;
044
045    private DocumentModel lastPublishedPost;
046
047    public ThreadAdapterImpl(DocumentModel threadDoc) {
048        this.threadDoc = threadDoc;
049    }
050
051    private void fetchAllPosts() {
052        posts = getSubComments(threadDoc);
053    }
054
055    public List<DocumentModel> getAllPosts() {
056        if (posts == null) {
057            fetchAllPosts();
058        }
059        return posts;
060    }
061
062    public List<DocumentModel> getPublishedPosts() {
063        if (publishedPosts == null) {
064            publishedPosts = new ArrayList<DocumentModel>();
065            for (DocumentModel doc : getAllPosts()) {
066                if (ForumConstants.PUBLISHED_STATE.equals(doc.getCurrentLifeCycleState())) {
067                    publishedPosts.add(doc);
068                }
069            }
070        }
071        return publishedPosts;
072    }
073
074    public List<DocumentModel> getPendingPosts() {
075        if (pendingPosts == null) {
076            pendingPosts = new ArrayList<DocumentModel>();
077            for (DocumentModel doc : getAllPosts()) {
078                if (ForumConstants.PENDING_STATE.equals(doc.getCurrentLifeCycleState())) {
079                    pendingPosts.add(doc);
080                }
081            }
082        }
083        return pendingPosts;
084    }
085
086    public DocumentModel getLastPublishedPost() {
087        if (lastPublishedPost == null) {
088            GregorianCalendar lastPostDate = null;
089            for (DocumentModel post : getPublishedPosts()) {
090                GregorianCalendar postDate = (GregorianCalendar) post.getProperty("post", "creationDate");
091
092                if (lastPostDate == null || postDate.after(lastPostDate)) {
093                    lastPostDate = postDate;
094                    lastPublishedPost = post;
095                }
096            }
097        }
098        return lastPublishedPost;
099    }
100
101    protected List<DocumentModel> getSubComments(DocumentModel doc) {
102        List<DocumentModel> allSubPosts = new ArrayList<DocumentModel>();
103        CommentableDocument commentDoc = doc.getAdapter(CommentableDocument.class);
104
105        if (commentDoc != null) {
106            List<DocumentModel> childComments = commentDoc.getComments();
107            for (DocumentModel childComment : childComments) {
108                allSubPosts.add(childComment);
109                allSubPosts.addAll(getSubComments(childComment));
110            }
111        }
112        return allSubPosts;
113    }
114
115    public DocumentModel getThreadDoc() {
116        return threadDoc;
117    }
118
119}