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Posted to commits@storm.apache.org by bo...@apache.org on 2015/02/23 17:26:18 UTC
[05/23] storm git commit: Introduce Basic Redis Bolt with some test
topologies
Introduce Basic Redis Bolt with some test topologies
Project: http://git-wip-us.apache.org/repos/asf/storm/repo
Commit: http://git-wip-us.apache.org/repos/asf/storm/commit/171a8bf4
Tree: http://git-wip-us.apache.org/repos/asf/storm/tree/171a8bf4
Diff: http://git-wip-us.apache.org/repos/asf/storm/diff/171a8bf4
Branch: refs/heads/master
Commit: 171a8bf461a2fa97dcfa8439680f4043d1c2dd3a
Parents: 28ebb82
Author: Jungtaek Lim <ka...@gmail.com>
Authored: Tue Dec 30 17:50:35 2014 +0900
Committer: Jungtaek Lim <ka...@gmail.com>
Committed: Tue Dec 30 17:50:35 2014 +0900
----------------------------------------------------------------------
.../storm/redis/bolt/AbstractRedisBolt.java | 50 +++++++
.../redis/util/config/JedisClusterConfig.java | 59 +++++++++
.../redis/util/config/JedisPoolConfig.java | 80 +++++++++++
.../util/container/JedisClusterContainer.java | 30 +++++
.../JedisCommandsContainerBuilder.java | 22 ++++
.../JedisCommandsInstanceContainer.java | 8 ++
.../redis/util/container/JedisContainer.java | 44 +++++++
.../storm/redis/topology/LookupWordCount.java | 131 +++++++++++++++++++
.../redis/topology/PersistentWordCount.java | 117 +++++++++++++++++
.../storm/redis/topology/WordCounter.java | 58 ++++++++
.../apache/storm/redis/topology/WordSpout.java | 88 +++++++++++++
11 files changed, 687 insertions(+)
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http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/bolt/AbstractRedisBolt.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/bolt/AbstractRedisBolt.java b/external/storm-redis/src/main/java/org/apache/storm/redis/bolt/AbstractRedisBolt.java
new file mode 100644
index 0000000..100503a
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/bolt/AbstractRedisBolt.java
@@ -0,0 +1,50 @@
+package org.apache.storm.redis.bolt;
+
+import backtype.storm.task.OutputCollector;
+import backtype.storm.task.TopologyContext;
+import backtype.storm.topology.base.BaseRichBolt;
+import org.apache.storm.redis.util.config.JedisClusterConfig;
+import org.apache.storm.redis.util.config.JedisPoolConfig;
+import org.apache.storm.redis.util.container.JedisCommandsContainerBuilder;
+import org.apache.storm.redis.util.container.JedisCommandsInstanceContainer;
+import redis.clients.jedis.JedisCommands;
+
+import java.util.Map;
+
+public abstract class AbstractRedisBolt extends BaseRichBolt {
+ protected OutputCollector collector;
+
+ private transient JedisCommandsInstanceContainer container;
+
+ private JedisPoolConfig jedisPoolConfig;
+ private JedisClusterConfig jedisClusterConfig;
+
+ public AbstractRedisBolt(JedisPoolConfig config) {
+ this.jedisPoolConfig = config;
+ }
+
+ public AbstractRedisBolt(JedisClusterConfig config) {
+ this.jedisClusterConfig = config;
+ }
+
+ @Override
+ public void prepare(Map map, TopologyContext topologyContext, OutputCollector collector) {
+ this.collector = collector;
+
+ if (jedisPoolConfig != null) {
+ this.container = JedisCommandsContainerBuilder.build(jedisPoolConfig);
+ } else if (jedisClusterConfig != null) {
+ this.container = JedisCommandsContainerBuilder.build(jedisClusterConfig);
+ } else {
+ throw new IllegalArgumentException("Jedis configuration not found");
+ }
+ }
+
+ protected JedisCommands getInstance() {
+ return this.container.getInstance();
+ }
+
+ protected void returnInstance(JedisCommands instance) {
+ this.container.returnInstance(instance);
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisClusterConfig.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisClusterConfig.java b/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisClusterConfig.java
new file mode 100644
index 0000000..9ec6b20
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisClusterConfig.java
@@ -0,0 +1,59 @@
+package org.apache.storm.redis.util.config;
+
+import com.google.common.base.Preconditions;
+import redis.clients.jedis.HostAndPort;
+import redis.clients.jedis.Protocol;
+
+import java.io.Serializable;
+import java.util.Set;
+
+public class JedisClusterConfig implements Serializable {
+ private Set<HostAndPort> nodes;
+ private int timeout;
+ private int maxRedirections;
+
+ public JedisClusterConfig(Set<HostAndPort> nodes, int timeout, int maxRedirections) {
+ this.nodes = nodes;
+ this.timeout = timeout;
+ this.maxRedirections = maxRedirections;
+ }
+
+ public Set<HostAndPort> getNodes() {
+ return nodes;
+ }
+
+ public int getTimeout() {
+ return timeout;
+ }
+
+ public int getMaxRedirections() {
+ return maxRedirections;
+ }
+
+ static class Builder {
+ private Set<HostAndPort> nodes;
+ private int timeout = Protocol.DEFAULT_TIMEOUT;
+ private int maxRedirections = 5;
+
+ public Builder setNodes(Set<HostAndPort> nodes) {
+ this.nodes = nodes;
+ return this;
+ }
+
+ public Builder setTimeout(int timeout) {
+ this.timeout = timeout;
+ return this;
+ }
+
+ public Builder setMaxRedirections(int maxRedirections) {
+ this.maxRedirections = maxRedirections;
+ return this;
+ }
+
+ public JedisClusterConfig build() {
+ Preconditions.checkNotNull(this.nodes, "Node information should be presented");
+
+ return new JedisClusterConfig(nodes, timeout, maxRedirections);
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisPoolConfig.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisPoolConfig.java b/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisPoolConfig.java
new file mode 100644
index 0000000..21a79dd
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/util/config/JedisPoolConfig.java
@@ -0,0 +1,80 @@
+package org.apache.storm.redis.util.config;
+
+import redis.clients.jedis.Protocol;
+
+import java.io.Serializable;
+
+public class JedisPoolConfig implements Serializable {
+ public static final String DEFAULT_HOST = "127.0.0.1";
+
+ private String host;
+ private int port;
+ private int timeout;
+ private int database;
+ private String password;
+
+ public JedisPoolConfig(String host, int port, int timeout, String password, int database) {
+ this.host = host;
+ this.port = port;
+ this.timeout = timeout;
+ this.database = database;
+ this.password = password;
+ }
+
+ public String getHost() {
+ return host;
+ }
+
+ public int getPort() {
+ return port;
+ }
+
+ public int getTimeout() {
+ return timeout;
+ }
+
+ public int getDatabase() {
+ return database;
+ }
+
+ public String getPassword() {
+ return password;
+ }
+
+ public static class Builder {
+ private String host = DEFAULT_HOST;
+ private int port = Protocol.DEFAULT_PORT;
+ private int timeout = Protocol.DEFAULT_TIMEOUT;
+ private int database = Protocol.DEFAULT_DATABASE;
+ private String password;
+
+ public Builder setHost(String host) {
+ this.host = host;
+ return this;
+ }
+
+ public Builder setPort(int port) {
+ this.port = port;
+ return this;
+ }
+
+ public Builder setTimeout(int timeout) {
+ this.timeout = timeout;
+ return this;
+ }
+
+ public Builder setDatabase(int database) {
+ this.database = database;
+ return this;
+ }
+
+ public Builder setPassword(String password) {
+ this.password = password;
+ return this;
+ }
+
+ public JedisPoolConfig build() {
+ return new JedisPoolConfig(host, port, timeout, password, database);
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisClusterContainer.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisClusterContainer.java b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisClusterContainer.java
new file mode 100644
index 0000000..be6694a
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisClusterContainer.java
@@ -0,0 +1,30 @@
+package org.apache.storm.redis.util.container;
+
+import redis.clients.jedis.JedisCluster;
+import redis.clients.jedis.JedisCommands;
+
+import java.io.Closeable;
+
+public class JedisClusterContainer implements JedisCommandsInstanceContainer, Closeable {
+
+ private JedisCluster jedisCluster;
+
+ public JedisClusterContainer(JedisCluster jedisCluster) {
+ this.jedisCluster = jedisCluster;
+ }
+
+ @Override
+ public JedisCommands getInstance() {
+ return this.jedisCluster;
+ }
+
+ @Override
+ public void returnInstance(JedisCommands jedisCommands) {
+ // do nothing
+ }
+
+ @Override
+ public void close() {
+ this.jedisCluster.close();
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsContainerBuilder.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsContainerBuilder.java b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsContainerBuilder.java
new file mode 100644
index 0000000..1f10524
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsContainerBuilder.java
@@ -0,0 +1,22 @@
+package org.apache.storm.redis.util.container;
+
+import org.apache.storm.redis.util.config.JedisClusterConfig;
+import org.apache.storm.redis.util.config.JedisPoolConfig;
+import redis.clients.jedis.JedisCluster;
+import redis.clients.jedis.JedisPool;
+
+public class JedisCommandsContainerBuilder {
+
+ // TODO : serialize redis.clients.jedis.JedisPoolConfig
+ public static final redis.clients.jedis.JedisPoolConfig DEFAULT_POOL_CONFIG = new redis.clients.jedis.JedisPoolConfig();
+
+ public static JedisCommandsInstanceContainer build(JedisPoolConfig config) {
+ JedisPool jedisPool = new JedisPool(DEFAULT_POOL_CONFIG, config.getHost(), config.getPort(), config.getTimeout(), config.getPassword(), config.getDatabase());
+ return new JedisContainer(jedisPool);
+ }
+
+ public static JedisCommandsInstanceContainer build(JedisClusterConfig config) {
+ JedisCluster jedisCluster = new JedisCluster(config.getNodes(), config.getTimeout(), config.getMaxRedirections(), DEFAULT_POOL_CONFIG);
+ return new JedisClusterContainer(jedisCluster);
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsInstanceContainer.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsInstanceContainer.java b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsInstanceContainer.java
new file mode 100644
index 0000000..6f1a148
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisCommandsInstanceContainer.java
@@ -0,0 +1,8 @@
+package org.apache.storm.redis.util.container;
+
+import redis.clients.jedis.JedisCommands;
+
+public interface JedisCommandsInstanceContainer {
+ JedisCommands getInstance();
+ void returnInstance(JedisCommands jedisCommands);
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisContainer.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisContainer.java b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisContainer.java
new file mode 100644
index 0000000..58177e4
--- /dev/null
+++ b/external/storm-redis/src/main/java/org/apache/storm/redis/util/container/JedisContainer.java
@@ -0,0 +1,44 @@
+package org.apache.storm.redis.util.container;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisCommands;
+import redis.clients.jedis.JedisPool;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+public class JedisContainer implements JedisCommandsInstanceContainer, Closeable {
+ private static final Logger LOG = LoggerFactory.getLogger(JedisContainer.class);
+
+ private JedisPool jedisPool;
+
+ public JedisContainer(JedisPool jedisPool) {
+ this.jedisPool = jedisPool;
+ }
+
+ @Override
+ public JedisCommands getInstance() {
+ return jedisPool.getResource();
+ }
+
+ @Override
+ public void returnInstance(JedisCommands jedisCommands) {
+ try {
+ ((Closeable) jedisCommands).close();
+ } catch (IOException e) {
+ LOG.warn("Failed to close (return) instance to pool");
+ try {
+ jedisPool.returnBrokenResource((Jedis) jedisCommands);
+ } catch (Exception e2) {
+ LOG.error("Failed to discard instance from pool");
+ }
+ }
+ }
+
+ @Override
+ public void close() {
+ jedisPool.close();
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/test/java/org/apache/storm/redis/topology/LookupWordCount.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/test/java/org/apache/storm/redis/topology/LookupWordCount.java b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/LookupWordCount.java
new file mode 100644
index 0000000..42d3800
--- /dev/null
+++ b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/LookupWordCount.java
@@ -0,0 +1,131 @@
+/**
+ * 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 backtype.storm.Config;
+import backtype.storm.LocalCluster;
+import backtype.storm.StormSubmitter;
+import backtype.storm.topology.OutputFieldsDeclarer;
+import backtype.storm.topology.TopologyBuilder;
+import backtype.storm.tuple.Fields;
+import backtype.storm.tuple.Tuple;
+import backtype.storm.tuple.Values;
+import org.apache.storm.redis.bolt.AbstractRedisBolt;
+import org.apache.storm.redis.util.config.JedisClusterConfig;
+import org.apache.storm.redis.util.config.JedisPoolConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import redis.clients.jedis.JedisCommands;
+import redis.clients.jedis.exceptions.JedisConnectionException;
+import redis.clients.jedis.exceptions.JedisException;
+
+import java.util.Random;
+
+public class LookupWordCount {
+ private static final String WORD_SPOUT = "WORD_SPOUT";
+ private static final String LOOKUP_BOLT = "LOOKUP_BOLT";
+
+ private static final String TEST_REDIS_HOST = "127.0.0.1";
+ private static final int TEST_REDIS_PORT = 6379;
+
+ public static class LookupWordTotalCountBolt extends AbstractRedisBolt {
+ private static final Logger LOG = LoggerFactory.getLogger(LookupWordTotalCountBolt.class);
+ private static final Random RANDOM = new Random();
+
+ public LookupWordTotalCountBolt(JedisPoolConfig config) {
+ super(config);
+ }
+
+ public LookupWordTotalCountBolt(JedisClusterConfig config) {
+ super(config);
+ }
+
+ @Override
+ public void execute(Tuple input) {
+ JedisCommands jedisCommands = null;
+ try {
+ jedisCommands = getInstance();
+ String wordName = input.getStringByField("word");
+ String countStr = jedisCommands.get(wordName);
+ if (countStr != null) {
+ int count = Integer.parseInt(countStr);
+ this.collector.emit(new Values(wordName, count));
+
+ // print lookup result with low probability
+ if(RANDOM.nextInt(1000) > 995) {
+ LOG.info("Lookup result - word : " + wordName + " / count : " + count);
+ }
+ } else {
+ // skip
+ LOG.warn("Word not found in Redis - word : " + wordName);
+ }
+ } catch (NumberFormatException e) {
+ LOG.error("Counter Type seems not stored to integer", e);
+ } catch (JedisConnectionException e) {
+ throw new RuntimeException("Unfortunately, this test requires redis-server running", e);
+ } catch (JedisException e) {
+ LOG.error("Exception occurred from Jedis/Redis", e);
+ } finally {
+ returnInstance(jedisCommands);
+ this.collector.ack(input);
+ }
+ }
+
+ @Override
+ public void declareOutputFields(OutputFieldsDeclarer declarer) {
+ // wordName, count
+ declarer.declare(new Fields("wordName", "count"));
+ }
+ }
+
+ public static void main(String[] args) throws Exception {
+ Config config = new Config();
+
+ String host = TEST_REDIS_HOST;
+ int port = TEST_REDIS_PORT;
+
+ if (args.length > 2) {
+ host = args[0];
+ port = Integer.parseInt(args[1]);
+ }
+
+ JedisPoolConfig poolConfig = new JedisPoolConfig.Builder()
+ .setHost(host).setPort(port).build();
+
+ WordSpout spout = new WordSpout();
+ LookupWordTotalCountBolt redisLookupBolt = new LookupWordTotalCountBolt(poolConfig);
+
+ //wordspout -> lookupbolt
+ TopologyBuilder builder = new TopologyBuilder();
+ builder.setSpout(WORD_SPOUT, spout, 1);
+ builder.setBolt(LOOKUP_BOLT, redisLookupBolt, 1).shuffleGrouping(WORD_SPOUT);
+
+ if (args.length == 2) {
+ LocalCluster cluster = new LocalCluster();
+ cluster.submitTopology("test", config, builder.createTopology());
+ Thread.sleep(30000);
+ cluster.killTopology("test");
+ cluster.shutdown();
+ System.exit(0);
+ } else if (args.length == 3) {
+ StormSubmitter.submitTopology(args[2], config, builder.createTopology());
+ } else{
+ System.out.println("Usage: LookupWordCount <redis host> <redis port> (topology name)");
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/test/java/org/apache/storm/redis/topology/PersistentWordCount.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/test/java/org/apache/storm/redis/topology/PersistentWordCount.java b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/PersistentWordCount.java
new file mode 100644
index 0000000..a96696b
--- /dev/null
+++ b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/PersistentWordCount.java
@@ -0,0 +1,117 @@
+/**
+ * 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 backtype.storm.Config;
+import backtype.storm.LocalCluster;
+import backtype.storm.StormSubmitter;
+import backtype.storm.topology.OutputFieldsDeclarer;
+import backtype.storm.topology.TopologyBuilder;
+import backtype.storm.tuple.Fields;
+import backtype.storm.tuple.Tuple;
+import org.apache.storm.redis.bolt.AbstractRedisBolt;
+import org.apache.storm.redis.util.config.JedisClusterConfig;
+import org.apache.storm.redis.util.config.JedisPoolConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import redis.clients.jedis.JedisCommands;
+import redis.clients.jedis.exceptions.JedisConnectionException;
+import redis.clients.jedis.exceptions.JedisException;
+
+public class PersistentWordCount {
+ private static final String WORD_SPOUT = "WORD_SPOUT";
+ private static final String COUNT_BOLT = "COUNT_BOLT";
+ private static final String REDIS_BOLT = "REDIS_BOLT";
+
+ private static final String TEST_REDIS_HOST = "127.0.0.1";
+ private static final int TEST_REDIS_PORT = 6379;
+
+ public static class StoreCountRedisBolt extends AbstractRedisBolt {
+ private static final Logger LOG = LoggerFactory.getLogger(StoreCountRedisBolt.class);
+
+ public StoreCountRedisBolt(JedisPoolConfig config) {
+ super(config);
+ }
+
+ public StoreCountRedisBolt(JedisClusterConfig config) {
+ super(config);
+ }
+
+ @Override
+ public void execute(Tuple input) {
+ String word = input.getStringByField("word");
+ int count = input.getIntegerByField("count");
+
+ JedisCommands commands = null;
+ try {
+ commands = getInstance();
+ commands.incrBy(word, count);
+ } catch (JedisConnectionException e) {
+ throw new RuntimeException("Unfortunately, this test requires redis-server running", e);
+ } catch (JedisException e) {
+ LOG.error("Exception occurred from Jedis/Redis", e);
+ } finally {
+ returnInstance(commands);
+ this.collector.ack(input);
+ }
+ }
+
+ @Override
+ public void declareOutputFields(OutputFieldsDeclarer declarer) {
+ }
+ }
+
+ public static void main(String[] args) throws Exception {
+ Config config = new Config();
+
+ String host = TEST_REDIS_HOST;
+ int port = TEST_REDIS_PORT;
+
+ if (args.length > 2) {
+ host = args[0];
+ port = Integer.parseInt(args[1]);
+ }
+
+ JedisPoolConfig poolConfig = new JedisPoolConfig.Builder()
+ .setHost(host).setPort(port).build();
+
+ WordSpout spout = new WordSpout();
+ WordCounter bolt = new WordCounter();
+ StoreCountRedisBolt redisBolt = new StoreCountRedisBolt(poolConfig);
+
+ // wordSpout ==> countBolt ==> RedisBolt
+ TopologyBuilder builder = new TopologyBuilder();
+
+ builder.setSpout(WORD_SPOUT, spout, 1);
+ builder.setBolt(COUNT_BOLT, bolt, 1).shuffleGrouping(WORD_SPOUT);
+ builder.setBolt(REDIS_BOLT, redisBolt, 1).fieldsGrouping(COUNT_BOLT, new Fields("word"));
+
+ if (args.length == 2) {
+ LocalCluster cluster = new LocalCluster();
+ cluster.submitTopology("test", config, builder.createTopology());
+ Thread.sleep(30000);
+ cluster.killTopology("test");
+ cluster.shutdown();
+ System.exit(0);
+ } else if (args.length == 3) {
+ StormSubmitter.submitTopology(args[2], config, builder.createTopology());
+ } else {
+ System.out.println("Usage: PersistentWordCount <redis host> <redis port> (topology name)");
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordCounter.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordCounter.java b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordCounter.java
new file mode 100644
index 0000000..6a0548d
--- /dev/null
+++ b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordCounter.java
@@ -0,0 +1,58 @@
+/**
+ * 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 backtype.storm.task.TopologyContext;
+import backtype.storm.topology.BasicOutputCollector;
+import backtype.storm.topology.IBasicBolt;
+import backtype.storm.topology.OutputFieldsDeclarer;
+import backtype.storm.tuple.Fields;
+import backtype.storm.tuple.Tuple;
+
+import java.util.Map;
+
+import static backtype.storm.utils.Utils.tuple;
+
+public class WordCounter implements IBasicBolt {
+
+
+ @SuppressWarnings("rawtypes")
+ public void prepare(Map stormConf, TopologyContext context) {
+ }
+
+ /*
+ * Just output the word value with a count of 1.
+ */
+ public void execute(Tuple input, BasicOutputCollector collector) {
+ collector.emit(tuple(input.getValues().get(0), 1));
+ }
+
+ public void cleanup() {
+
+ }
+
+ public void declareOutputFields(OutputFieldsDeclarer declarer) {
+ declarer.declare(new Fields("word", "count"));
+ }
+
+ @Override
+ public Map<String, Object> getComponentConfiguration() {
+ return null;
+ }
+
+}
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/storm/blob/171a8bf4/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordSpout.java
----------------------------------------------------------------------
diff --git a/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordSpout.java b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordSpout.java
new file mode 100644
index 0000000..bb9c2d7
--- /dev/null
+++ b/external/storm-redis/src/test/java/org/apache/storm/redis/topology/WordSpout.java
@@ -0,0 +1,88 @@
+/**
+ * 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 backtype.storm.spout.SpoutOutputCollector;
+import backtype.storm.task.TopologyContext;
+import backtype.storm.topology.IRichSpout;
+import backtype.storm.topology.OutputFieldsDeclarer;
+import backtype.storm.tuple.Fields;
+import backtype.storm.tuple.Values;
+
+import java.util.Map;
+import java.util.Random;
+import java.util.UUID;
+
+public class WordSpout implements IRichSpout {
+ boolean isDistributed;
+ SpoutOutputCollector collector;
+ public static final String[] words = new String[] { "apple", "orange", "pineapple", "banana", "watermelon" };
+
+ public WordSpout() {
+ this(true);
+ }
+
+ public WordSpout(boolean isDistributed) {
+ this.isDistributed = isDistributed;
+ }
+
+ public boolean isDistributed() {
+ return this.isDistributed;
+ }
+
+ @SuppressWarnings("rawtypes")
+ public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) {
+ this.collector = collector;
+ }
+
+ public void close() {
+
+ }
+
+ public void nextTuple() {
+ final Random rand = new Random();
+ final String word = words[rand.nextInt(words.length)];
+ this.collector.emit(new Values(word), UUID.randomUUID());
+ Thread.yield();
+ }
+
+ public void ack(Object msgId) {
+
+ }
+
+ public void fail(Object msgId) {
+
+ }
+
+ public void declareOutputFields(OutputFieldsDeclarer declarer) {
+ declarer.declare(new Fields("word"));
+ }
+
+ @Override
+ public void activate() {
+ }
+
+ @Override
+ public void deactivate() {
+ }
+
+ @Override
+ public Map<String, Object> getComponentConfiguration() {
+ return null;
+ }
+}