Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.opensocial.shindig.service; import com.liferay.opensocial.shindig.util.SerializerUtil; import com.liferay.opensocial.shindig.util.ShindigUtil; import com.liferay.portal.kernel.dao.orm.QueryUtil; import com.liferay.portal.kernel.json.JSONException; import com.liferay.portal.kernel.log.Log; import com.liferay.portal.kernel.log.LogFactoryUtil; import com.liferay.portal.kernel.repository.model.Folder; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.model.Group; import com.liferay.portal.model.User; import com.liferay.portal.service.ServiceContext; import com.liferay.portal.service.UserLocalServiceUtil; import com.liferay.portlet.documentlibrary.model.DLFolder; import com.liferay.portlet.documentlibrary.model.DLFolderConstants; import com.liferay.portlet.documentlibrary.service.DLAppLocalServiceUtil; import com.liferay.portlet.documentlibrary.service.DLAppServiceUtil; import com.liferay.portlet.social.model.SocialRelationConstants; import java.util.ArrayList; import java.util.List; import java.util.Set; import java.util.concurrent.Future; import javax.servlet.http.HttpServletResponse; import org.apache.shindig.auth.SecurityToken; import org.apache.shindig.common.util.ImmediateFuture; import org.apache.shindig.protocol.ProtocolException; import org.apache.shindig.protocol.RestfulCollection; import org.apache.shindig.social.core.model.AlbumImpl; import org.apache.shindig.social.opensocial.model.Album; import org.apache.shindig.social.opensocial.spi.AlbumService; import org.apache.shindig.social.opensocial.spi.CollectionOptions; import org.apache.shindig.social.opensocial.spi.GroupId; import org.apache.shindig.social.opensocial.spi.UserId; /** * @author Dennis Ju */ public class LiferayAlbumService implements AlbumService { public Future<Void> createAlbum(UserId userId, String appId, Album album, SecurityToken securityToken) throws ProtocolException { try { doCreateAlbum(userId, appId, album, securityToken); return ImmediateFuture.newInstance(null); } catch (Exception e) { if (_log.isDebugEnabled()) { _log.debug(e, e); } throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } } public Future<Void> deleteAlbum(UserId userId, String appId, String albumId, SecurityToken securityToken) throws ProtocolException { try { doDeleteAlbum(userId, appId, albumId, securityToken); return ImmediateFuture.newInstance(null); } catch (Exception e) { if (_log.isDebugEnabled()) { _log.debug(e, e); } throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } } public Future<Album> getAlbum(UserId userId, String appId, Set<String> fields, String albumId, SecurityToken securityToken) throws ProtocolException { try { Album album = doGetAlbum(userId, appId, fields, albumId, securityToken); return ImmediateFuture.newInstance(album); } catch (Exception e) { if (_log.isDebugEnabled()) { _log.debug(e, e); } throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } } public Future<RestfulCollection<Album>> getAlbums(Set<UserId> userIds, GroupId groupId, String appId, Set<String> fields, CollectionOptions collectionOptions, SecurityToken securityToken) throws ProtocolException { try { RestfulCollection<Album> albums = doGetAlbums(userIds, groupId, appId, fields, collectionOptions, securityToken); return ImmediateFuture.newInstance(albums); } catch (Exception e) { if (_log.isDebugEnabled()) { _log.debug(e, e); } throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } } public Future<RestfulCollection<Album>> getAlbums(UserId userId, String appId, Set<String> fields, CollectionOptions collectionOptions, Set<String> albumIds, SecurityToken securityToken) throws ProtocolException { try { RestfulCollection<Album> albums = doGetAlbums(userId, appId, fields, collectionOptions, albumIds, securityToken); return ImmediateFuture.newInstance(albums); } catch (Exception e) { if (_log.isDebugEnabled()) { _log.debug(e, e); } throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } } public Future<Void> updateAlbum(UserId userId, String appId, Album album, String albumId, SecurityToken securityToken) throws ProtocolException { try { doUpdateAlbum(userId, appId, album, albumId, securityToken); return ImmediateFuture.newInstance(null); } catch (Exception e) { if (_log.isDebugEnabled()) { _log.debug(e, e); } throw new ProtocolException(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage(), e); } } protected void doCreateAlbum(UserId userId, String appId, Album album, SecurityToken securityToken) throws Exception { doUpdateAlbum(userId, appId, album, null, securityToken); } protected void doDeleteAlbum(UserId userId, String appId, String albumId, SecurityToken securityToken) throws Exception { long albumIdLong = GetterUtil.getLong(albumId); DLAppServiceUtil.deleteFolder(albumIdLong); } protected Album doGetAlbum(UserId userId, String appId, Set<String> fields, String albumId, SecurityToken securityToken) throws Exception { long albumIdLong = GetterUtil.getLong(albumId); Folder folder = DLAppServiceUtil.getFolder(albumIdLong); return toAlbum(folder, fields, securityToken); } protected RestfulCollection<Album> doGetAlbums(Set<UserId> userIds, GroupId groupId, String appId, Set<String> fields, CollectionOptions collectionOptions, SecurityToken securityToken) throws Exception { List<Album> albums = new ArrayList<Album>(); for (UserId userId : userIds) { String userIdString = userId.getUserId(securityToken); long userIdLong = GetterUtil.getLong(userIdString); User user = UserLocalServiceUtil.getUserById(userIdLong); if (!ShindigUtil.isValidUser(user)) { continue; } List<Folder> folders = new ArrayList<Folder>(); GroupId.Type groupIdType = groupId.getType(); if (groupIdType.equals(GroupId.Type.all) || groupIdType.equals(GroupId.Type.friends) || groupIdType.equals(GroupId.Type.groupId)) { List<User> socialUsers = UserLocalServiceUtil.getSocialUsers(user.getUserId(), SocialRelationConstants.TYPE_BI_FRIEND, QueryUtil.ALL_POS, QueryUtil.ALL_POS, null); for (User socialUser : socialUsers) { Group group = socialUser.getGroup(); List<Folder> friendFolders = DLAppServiceUtil.getFolders(group.getGroupId(), DLFolderConstants.DEFAULT_PARENT_FOLDER_ID); folders.addAll(friendFolders); } } else if (groupIdType.equals(GroupId.Type.self)) { Group group = user.getGroup(); folders = DLAppServiceUtil.getFolders(group.getGroupId(), DLFolderConstants.DEFAULT_PARENT_FOLDER_ID); } for (Folder folder : folders) { Album album = toAlbum(folder, fields, securityToken); albums.add(album); } } return new RestfulCollection<Album>(albums, collectionOptions.getFirst(), albums.size(), collectionOptions.getMax()); } protected RestfulCollection<Album> doGetAlbums(UserId userId, String appId, Set<String> fields, CollectionOptions collectionOptions, Set<String> albumIds, SecurityToken securityToken) throws Exception { List<Album> albums = new ArrayList<Album>(); for (String albumId : albumIds) { Folder folder = DLAppServiceUtil.getFolder(GetterUtil.getLong(albumId)); Album album = toAlbum(folder, fields, securityToken); albums.add(album); } return new RestfulCollection<Album>(albums, collectionOptions.getFirst(), albums.size(), collectionOptions.getMax()); } protected void doUpdateAlbum(UserId userId, String appId, Album album, String albumId, SecurityToken securityToken) throws Exception { long userIdLong = GetterUtil.getLong(userId.getUserId(securityToken)); User user = UserLocalServiceUtil.getUserById(userIdLong); if (!ShindigUtil.isValidUser(user)) { return; } Group group = user.getGroup(); long groupIdLong = group.getGroupId(); ServiceContext serviceContext = new ServiceContext(); serviceContext.setAddGroupPermissions(true); serviceContext.setAddGuestPermissions(true); serviceContext.setExpandoBridgeAttributes(SerializerUtil.toExpandoAttributes(album, _ALBUM_FIELDS, user.getCompanyId(), DLFolder.class.getName())); serviceContext.setScopeGroupId(groupIdLong); if (albumId == null) { DLAppServiceUtil.addFolder(groupIdLong, DLFolderConstants.DEFAULT_PARENT_FOLDER_ID, album.getTitle(), album.getDescription(), serviceContext); } else { Folder folder = DLAppLocalServiceUtil.getFolder(GetterUtil.getLong(albumId)); DLAppServiceUtil.updateFolder(folder.getFolderId(), album.getTitle(), album.getDescription(), serviceContext); } } protected Album toAlbum(Folder folder, Set<String> fields, SecurityToken securityToken) throws JSONException { Album album = new AlbumImpl(); album.setDescription(folder.getDescription()); album.setId(String.valueOf(folder.getFolderId())); album.setOwnerId(String.valueOf(folder.getUserId())); album.setTitle(folder.getName()); SerializerUtil.copyProperties(folder.getAttributes(), album, _ALBUM_FIELDS); return album; } private static final Album.Field[] _ALBUM_FIELDS = { Album.Field.LOCATION, Album.Field.THUMBNAIL_URL }; private static Log _log = LogFactoryUtil.getLog(LiferayAlbumService.class); }