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https://issues.apache.org/jira/browse/STORM-1919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15356752#comment-15356752
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ASF GitHub Bot commented on STORM-1919:
---------------------------------------
Github user abhishekagarwal87 commented on a diff in the pull request:
https://github.com/apache/storm/pull/1517#discussion_r69093854
--- Diff:
external/storm-redis/src/test/java/org/apache/storm/redis/topology/WhitelistWordCount.java
---
@@ -0,0 +1,155 @@
+/**
+ * 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.storm.redis.topology;
+
+import org.apache.storm.Config;
+import org.apache.storm.LocalCluster;
+import org.apache.storm.StormSubmitter;
+import org.apache.storm.redis.bolt.RedisFilterBolt;
+import org.apache.storm.redis.common.config.JedisPoolConfig;
+import org.apache.storm.redis.common.mapper.RedisDataTypeDescription;
+import org.apache.storm.redis.common.mapper.RedisFilterMapper;
+import org.apache.storm.task.OutputCollector;
+import org.apache.storm.task.TopologyContext;
+import org.apache.storm.topology.OutputFieldsDeclarer;
+import org.apache.storm.topology.TopologyBuilder;
+import org.apache.storm.topology.base.BaseRichBolt;
+import org.apache.storm.tuple.Fields;
+import org.apache.storm.tuple.ITuple;
+import org.apache.storm.tuple.Tuple;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Map;
+import java.util.Random;
+
+public class WhitelistWordCount {
--- End diff --
@HeartSaVioR That's fine with me. I have initiated the discussion.
+1 for the PR.
> Introduce FilterBolt on storm-redis
> -----------------------------------
>
> Key: STORM-1919
> URL: https://issues.apache.org/jira/browse/STORM-1919
> Project: Apache Storm
> Issue Type: New Feature
> Components: storm-redis
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
>
> While discussing about STORM-1880, it would be better to have FilterBolt
> explicitly instead of letting users set up their lookup mapper to act as
> filter.
> There's other benefit here: we can use exists / hexists on STRING / HASH
> datatype instead of retrieving actual value which reduces execution time /
> latency from Redis side.
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