Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2300#discussion_r187762718
--- Diff:
datamap/bloom/src/main/java/org/apache/carbondata/datamap/bloom/BloomDataMapCache.java
---
@@ -0,0 +1,197 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.carbondata.datamap.bloom;
+
+import java.io.DataInputStream;
+import java.io.EOFException;
+import java.io.File;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.carbondata.common.logging.LogService;
+import org.apache.carbondata.common.logging.LogServiceFactory;
+import org.apache.carbondata.core.datastore.impl.FileFactory;
+import org.apache.carbondata.core.util.CarbonUtil;
+
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.CacheStats;
+import com.google.common.cache.LoadingCache;
+import com.google.common.cache.RemovalListener;
+import com.google.common.cache.RemovalNotification;
+
+public class BloomDataMapCache implements Serializable {
+ private static final LogService LOGGER = LogServiceFactory.getLogService(
+ BloomDataMapCache.class.getName());
+ private static final long serialVersionUID = 20160822L;
+ private static final long DEFAULT_CACHE_SIZE = 512 * 1024 * 1024;
+ private static final int DEFAULT_CACHE_EXPIRED_HOURS = 2;
+ private LoadingCache<CacheKey, List<BloomDMModel>> bloomDMCache = null;
+
+ private BloomDataMapCache() {
+ RemovalListener<CacheKey, List<BloomDMModel>> listener =
+ new RemovalListener<CacheKey, List<BloomDMModel>>() {
+ @Override
+ public void onRemoval(RemovalNotification<CacheKey,
List<BloomDMModel>> notification) {
+ LOGGER.error(
--- End diff --
Is it suitable to do error logging? Why not use info?
---
