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The RatingService will allow users to apply ratings to content nodes in the repository. There will be a number of built-in Rating Schemes and support to add more by the usual extension mechanism. Out of the box, we envision a 'likes' scheme (user X likes this document) and a 'star' rating (user X gave this document 3 out of 5 stars). Content model for ratings. Spring config includes two out-of-the-box rating schemes Various basic infrastructure classes for Ratings, RatingSchemes and the service itself. Basic CRUD for ratings in a Java foundation layer. Associated JUnit tests. The next contribution will add support for per-node average and total ratings and associated tests. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@21000 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
102 lines
3.7 KiB
Java
102 lines
3.7 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.service.cmr.rating;
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import java.util.Map;
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import org.alfresco.service.NotAuditable;
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import org.alfresco.service.PublicService;
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import org.alfresco.service.cmr.repository.NodeRef;
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/**
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* The Rating service. TODO
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*
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* @author Neil McErlean
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* @since 3.4
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*/
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@PublicService
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public interface RatingService
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{
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/**
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* Returns the available {@link RatingScheme rating schemes} keyed by name.
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*
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* @return The {@link RatingScheme rating schemes}.
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*/
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@NotAuditable
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Map<String, RatingScheme> getRatingSchemes();
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/**
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* Returns the named {@link RatingScheme rating scheme} if there is one.
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*
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* @param ratingSchemeName name of the rating scheme.
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* @return The {@link RatingScheme rating schemes} if one of that name is registered,
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* else <code>null</code>.
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*/
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@NotAuditable
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RatingScheme getRatingScheme(String ratingSchemeName);
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/**
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* This method applies the given rating to the specified target node. If a rating
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* from the current user in the specified scheme already exists, it will be replaced.
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*
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* @param targetNode the node to which the rating is to be applied.
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* @param rating the rating which is to be applied.
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* @param ratingSchemeName the name of the rating scheme to use.
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*
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* @throws RatingServiceException if the rating is not within the range defined by the named scheme
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* or if the named scheme is not registered.
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* @see RatingService#getRatingSchemes()
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* @see RatingScheme
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*/
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@NotAuditable
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void applyRating(NodeRef targetNode, int rating, String ratingSchemeName) throws RatingServiceException;
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/**
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* This method gets the {@link Rating} applied by the current user to the specified node in the specified
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* {@link RatingScheme} - if there is one.
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*
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* @param targetNode the node on which the rating is sought.
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* @param ratingScheme the rating scheme to use.
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*
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* @return the Rating object if there is one, else <code>null</code>.
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* @see RatingService#getRatingSchemes()
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* @see RatingScheme
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*/
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@NotAuditable
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// TODO Get average/total ratings on node
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Rating getRatingByCurrentUser(NodeRef targetNode, RatingScheme ratingScheme);
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/**
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* This method removes any {@link Rating} applied by the current user to the specified node in the specified
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* {@link RatingScheme}.
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*
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* @param targetNode the node from which the rating is to be removed.
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* @param ratingScheme the rating scheme to use.
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*
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* @return the deleted Rating object if there was one, else <code>null</code>.
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* @see RatingService#getRatingSchemes()
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* @see RatingScheme
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*/
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@NotAuditable
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Rating removeRatingByCurrentUser(NodeRef targetNode, RatingScheme ratingScheme);
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}
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