Github user mjsax commented on a diff in the pull request:
https://github.com/apache/flink/pull/1813#discussion_r67620827
--- Diff:
flink-streaming-connectors/flink-connector-redis/src/main/java/org/apache/flink/streaming/connectors/redis/RedisSink.java
---
@@ -0,0 +1,235 @@
+/*
+ * 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.flink.streaming.connectors.redis;
+
+import com.google.common.base.Preconditions;
+
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;
+import
org.apache.flink.streaming.connectors.redis.common.config.JedisClusterConfig;
+import
org.apache.flink.streaming.connectors.redis.common.config.JedisPoolConfig;
+import
org.apache.flink.streaming.connectors.redis.common.config.JedisSentinelConfig;
+import
org.apache.flink.streaming.connectors.redis.common.container.RedisCommandsContainer;
+import
org.apache.flink.streaming.connectors.redis.common.container.RedisCommandsContainerBuilder;
+import
org.apache.flink.streaming.connectors.redis.common.mapper.RedisDataType;
+import
org.apache.flink.streaming.connectors.redis.common.mapper.RedisDataTypeDescription;
+import
org.apache.flink.streaming.connectors.redis.common.mapper.RedisMapper;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * A sink that delivers data to a Redis channel using the Jedis client.
+ * <p>When creating the sink using first constructor {@link
#RedisSink(JedisPoolConfig, RedisMapper)}
+ * the sink will create connection using {@link
redis.clients.jedis.JedisPool}.
+ * <p>When using second constructor {@link #RedisSink(JedisSentinelConfig,
RedisMapper)} the sink will create connection
+ * using {@link redis.clients.jedis.JedisSentinelPool} to Redis cluster.
Use this if redis is
+ * configured using sentinels else use the third constructor {@link
#RedisSink(JedisClusterConfig, RedisMapper)}
+ * which use {@link redis.clients.jedis.JedisCluster} to connect to Redis
cluster.
+ *
+ * <p>Example:
+ *
+ * <pre>
+ *{@code
+ *public static class RedisExampleDataMapper implements
RedisMapper<Tuple2<String, String>> {
+ * public RedisDataTypeDescription getDataTypeDescription() {
+ * return new RedisDataTypeDescription(dataType,
REDIS_ADDITIONAL_KEY);
+ * }
+ * public String getKeyFromData(Tuple2 data) {
+ * return String.valueOf(data.f0);
+ * }
+ * public String getValueFromData(Tuple2 data) {
+ * return String.valueOf(data.f1);
+ * }
+ *}
+ *JedisPoolConfig jedisPoolConfig = new JedisPoolConfig.Builder()
+ * .setHost(REDIS_HOST).setPort(REDIS_PORT).build();
+ *new RedisSink<String>(jedisPoolConfig, new RedisExampleDataMapper());
+ *}</pre>
+ *
+ * @param <IN> Type of the elements emitted by this sink
+ */
+public class RedisSink<IN> extends RichSinkFunction<IN> {
+
+ private static final long serialVersionUID = 1L;
+
+ private static final Logger LOG =
LoggerFactory.getLogger(RedisSink.class);
+
+ /**
+ * This additional key needed for {@link RedisDataType#HASH} and {@link
RedisDataType#SORTED_SET}.
+ * Other {@link RedisDataType} works only with two variable i.e. name
of the list and value to be added.
+ * But for {@link RedisDataType#HASH} and {@link
RedisDataType#SORTED_SET} we need three variables.
+ * <p>For {@link RedisDataType#HASH} we need hash name, hash key and
element.
+ * additionalKey used as hash name for {@link RedisDataType#HASH}
+ * <p>For {@link RedisDataType#SORTED_SET} we need set name, the
element and it's score.
+ * additionalKey used as set name for {@link RedisDataType#SORTED_SET}
+ */
+ private String additionalKey;
+ private RedisMapper<IN> redisSinkMapper;
+ private RedisDataType redisDataType;
+
+ private JedisPoolConfig jedisPoolConfig;
+ private JedisSentinelConfig jedisSentinelConfig;
+ private JedisClusterConfig jedisClusterConfig;
+
+ private RedisCommandsContainer redisCommandsContainer;
+
+ /**
+ * Creates a new RedisSink that connects to the Redis Server.
+ *
+ * @param jedisPoolConfig The configuration of {@link
org.apache.flink.streaming.connectors.redis.common.config.JedisPoolConfig}
+ * @param redisSinkMapper This used for generate redis command and key
value from incoming elements
+ */
+ public RedisSink(JedisPoolConfig jedisPoolConfig, RedisMapper<IN>
redisSinkMapper) {
+ Preconditions.checkNotNull(jedisPoolConfig, "Redis connection
pool config should not be Null");
+ Preconditions.checkNotNull(redisSinkMapper, "Redis Mapper can
not be null");
+
+ this.redisSinkMapper = redisSinkMapper;
+ this.jedisPoolConfig = jedisPoolConfig;
+ RedisDataTypeDescription dataTypeDescription =
redisSinkMapper.getDataTypeDescription();
+ this.redisDataType = dataTypeDescription.getDataType();
+ this.additionalKey = dataTypeDescription.getAdditionalKey();
+
+ }
+
+ /**
+ * Creates a new RedisSink that connects to the Redis Sentinels.
+ *
+ * @param jedisSentinelConfig The configuration of {@link
org.apache.flink.streaming.connectors.redis.common.config.JedisSentinelConfig}
+ * @param redisSinkMapper This used for generate redis command and key
value from incoming elements
+ */
+ public RedisSink(JedisSentinelConfig jedisSentinelConfig,
RedisMapper<IN> redisSinkMapper) {
+ Preconditions.checkNotNull(jedisSentinelConfig, "Redis Sentinel
connection pool config should not be Null");
+ Preconditions.checkNotNull(redisSinkMapper, "Redis Mapper can
not be null");
+
+ this.redisSinkMapper = redisSinkMapper;
+ this.jedisSentinelConfig = jedisSentinelConfig;
+ RedisDataTypeDescription dataTypeDescription =
redisSinkMapper.getDataTypeDescription();
+ this.redisDataType = dataTypeDescription.getDataType();
+ this.additionalKey = dataTypeDescription.getAdditionalKey();
+
+ }
+
+ /**
+ * Creates a new RedisSink that connects to the Redis Cluster.
+ *
+ * @param jedisClusterConfig The configuration of {@link
org.apache.flink.streaming.connectors.redis.common.config.JedisClusterConfig}
+ * @param redisSinkMapper This used for generate redis command and key
value from incoming elements
--- End diff --
see above
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
