From a1a18f77a50804e0127dfa4b0f5240c49c541184 Mon Sep 17 00:00:00 2001
From: Scott Jackson <daneren2005@gmail.com>
Date: Mon, 2 Jul 2012 21:24:02 -0700
Subject: Initial Commit

---
 .../subsonic/service/RatingService.java            | 101 +++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 subsonic-main/src/main/java/net/sourceforge/subsonic/service/RatingService.java

(limited to 'subsonic-main/src/main/java/net/sourceforge/subsonic/service/RatingService.java')

diff --git a/subsonic-main/src/main/java/net/sourceforge/subsonic/service/RatingService.java b/subsonic-main/src/main/java/net/sourceforge/subsonic/service/RatingService.java
new file mode 100644
index 00000000..6208faf2
--- /dev/null
+++ b/subsonic-main/src/main/java/net/sourceforge/subsonic/service/RatingService.java
@@ -0,0 +1,101 @@
+/*
+ This file is part of Subsonic.
+
+ Subsonic is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Subsonic 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2009 (C) Sindre Mehus
+ */
+package net.sourceforge.subsonic.service;
+
+import net.sourceforge.subsonic.dao.*;
+import net.sourceforge.subsonic.domain.*;
+import net.sourceforge.subsonic.util.FileUtil;
+
+import java.util.*;
+import java.io.File;
+
+/**
+ * Provides services for user ratings.
+ *
+ * @author Sindre Mehus
+ */
+public class RatingService {
+
+    private RatingDao ratingDao;
+    private SecurityService securityService;
+    private MediaFileService mediaFileService;
+
+    /**
+     * Returns the highest rated music files.
+     *
+     * @param offset Number of files to skip.
+     * @param count  Maximum number of files to return.
+     * @return The highest rated music files.
+     */
+    public List<MediaFile> getHighestRated(int offset, int count) {
+        List<String> highestRated = ratingDao.getHighestRated(offset, count);
+        List<MediaFile> result = new ArrayList<MediaFile>();
+        for (String path : highestRated) {
+            File file = new File(path);
+            if (FileUtil.exists(file) && securityService.isReadAllowed(file)) {
+                result.add(mediaFileService.getMediaFile(path));
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Sets the rating for a music file and a given user.
+     *
+     * @param username  The user name.
+     * @param mediaFile The music file.
+     * @param rating    The rating between 1 and 5, or <code>null</code> to remove the rating.
+     */
+    public void setRatingForUser(String username, MediaFile mediaFile, Integer rating) {
+        ratingDao.setRatingForUser(username, mediaFile, rating);
+    }
+
+    /**
+     * Returns the average rating for the given music file.
+     *
+     * @param mediaFile The music file.
+     * @return The average rating, or <code>null</code> if no ratings are set.
+     */
+    public Double getAverageRating(MediaFile mediaFile) {
+        return ratingDao.getAverageRating(mediaFile);
+    }
+
+    /**
+     * Returns the rating for the given user and music file.
+     *
+     * @param username  The user name.
+     * @param mediaFile The music file.
+     * @return The rating, or <code>null</code> if no rating is set.
+     */
+    public Integer getRatingForUser(String username, MediaFile mediaFile) {
+        return ratingDao.getRatingForUser(username, mediaFile);
+    }
+
+    public void setRatingDao(RatingDao ratingDao) {
+        this.ratingDao = ratingDao;
+    }
+
+    public void setSecurityService(SecurityService securityService) {
+        this.securityService = securityService;
+    }
+
+    public void setMediaFileService(MediaFileService mediaFileService) {
+        this.mediaFileService = mediaFileService;
+    }
+}
-- 
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