⚡ #12319 缓存统计数据

src/main/java/org/b3log/solo/cache/StatisticCache.java

+/*
+ * Copyright (c) 2010-2017, b3log.org & hacpai.com
+ *
+ * Licensed 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.
+ */
+package org.b3log.solo.cache;
+
+import org.b3log.latke.Keys;
+import org.b3log.latke.cache.Cache;
+import org.b3log.latke.cache.CacheFactory;
+import org.b3log.latke.ioc.inject.Named;
+import org.b3log.latke.ioc.inject.Singleton;
+import org.b3log.solo.model.Statistic;
+import org.b3log.solo.util.JSONs;
+import org.json.JSONObject;
+
+/**
+ * Statistic cache.
+ *
+ * @author <a href="http://88250.b3log.org">Liang Ding</a>
+ * @version 1.0.0.0, Aug 30, 2017
+ * @since 2.3.0
+ */
+@Named
+@Singleton
+public class StatisticCache {
+
+    /**
+     * Statistic cache.
+     */
+    private Cache cache = CacheFactory.getCache(Statistic.STATISTIC);
+
+    /**
+     * Gets an statistic by the specified statistic id.
+     *
+     * @param id the specified statistic id
+     * @return statistic, returns {@code null} if not found
+     */
+    public JSONObject getStatistic(final String id) {
+        final JSONObject statistic = cache.get(id);
+        if (null == statistic) {
+            return null;
+        }
+
+        return JSONs.clone(statistic);
+    }
+
+    /**
+     * Adds or updates the specified statistic.
+     *
+     * @param statistic the specified statistic
+     */
+    public void putStatistic(final JSONObject statistic) {
+        final String statisticId = statistic.optString(Keys.OBJECT_ID);
+
+        cache.put(statisticId, JSONs.clone(statistic));
+    }
+
+    /**
+     * Removes an statistic by the specified statistic id.
+     *
+     * @param id the specified statistic id
+     */
+    public void removeStatistic(final String id) {
+        cache.remove(id);
+    }
+}

src/main/java/org/b3log/solo/repository/impl/StatisticRepositoryImpl.java

@@ -15,18 +15,21 @@
  */
 package org.b3log.solo.repository.impl;
 
-
+import org.b3log.latke.Keys;
+import org.b3log.latke.ioc.inject.Inject;
 import org.b3log.latke.repository.AbstractRepository;
+import org.b3log.latke.repository.RepositoryException;
 import org.b3log.latke.repository.annotation.Repository;
+import org.b3log.solo.cache.StatisticCache;
 import org.b3log.solo.model.Statistic;
 import org.b3log.solo.repository.StatisticRepository;
-
+import org.json.JSONObject;
 
 /**
  * Statistic repository.
  *
  * @author <a href="http://88250.b3log.org">Liang Ding</a>
- * @version 1.0.0.2, May 15, 2013
+ * @version 1.1.0.0, Aug 30, 2017
  * @since 0.3.1
  */
 @Repository
@@ -38,4 +41,42 @@ public class StatisticRepositoryImpl extends AbstractRepository implements Stati
     public StatisticRepositoryImpl() {
         super(Statistic.STATISTIC);
     }
+
+    /**
+     * Statistic cache.
+     */
+    @Inject
+    private StatisticCache statisticCache;
+
+    @Override
+    public void remove(final String id) throws RepositoryException {
+        super.remove(id);
+
+        statisticCache.removeStatistic(id);
+    }
+
+    @Override
+    public JSONObject get(final String id) throws RepositoryException {
+        JSONObject ret = statisticCache.getStatistic(id);
+        if (null != ret) {
+            return ret;
+        }
+
+        ret = super.get(id);
+        if (null == ret) {
+            return null;
+        }
+
+        statisticCache.putStatistic(ret);
+
+        return ret;
+    }
+
+    @Override
+    public void update(final String id, final JSONObject statistic) throws RepositoryException {
+        super.update(id, statistic);
+
+        statistic.put(Keys.OBJECT_ID, id);
+        statisticCache.putStatistic(statistic);
+    }
 }