| # Camel-Kafka-connector NSQ Source |
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| ## Introduction |
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| This is an example for Camel-Kafka-connector NSQ Source |
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| ## What is needed |
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| - A NSQ topic |
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| ## Running Kafka |
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| ``` |
| $KAFKA_HOME/bin/zookeeper-server-start.sh config/zookeeper.properties |
| $KAFKA_HOME/bin/kafka-server-start.sh config/server.properties |
| $KAFKA_HOME/bin/kafka-topics.sh --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic mytopic |
| ``` |
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| ## Setting up the needed bits and running the example |
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| You'll need to setup the plugin.path property in your kafka |
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| Open the `$KAFKA_HOME/config/connect-standalone.properties` |
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| and set the `plugin.path` property to your choosen location |
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| In this example we'll use `/home/oscerd/connectors/` |
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| ``` |
| > cd /home/oscerd/connectors/ |
| > wget https://repo1.maven.org/maven2/org/apache/camel/kafkaconnector/camel-nsq-kafka-connector/0.5.0/camel-nsq-kafka-connector-0.5.0-package.zip |
| > unzip camel-nsq-kafka-connector-0.5.0-package.zip |
| ``` |
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| We'll need to add also some dependencies for this connector |
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| ``` |
| > cd /home/oscerd/connectors/camel-nsq-kafka-connector/ |
| > wget https://repo1.maven.org/maven2/org/apache/logging/log4j/log4j-api/2.13.3/log4j-api-2.13.3.jar |
| > wget https://repo1.maven.org/maven2/org/apache/logging/log4j/log4j-core/2.13.3/log4j-core-2.13.3.jar |
| ``` |
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| In this example we'll use the plain nsq release |
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| ``` |
| > wget https://github.com/nsqio/nsq/releases/download/v1.2.0/nsq-1.2.0.linux-amd64.go1.12.9.tar.gz |
| > tar -xzf nsq-1.2.0.linux-amd64.go1.12.9.tar.gz |
| > cd nsq-1.2.0.linux-amd64.go1.12.9/ |
| > ./nsqlookupd |
| ``` |
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| in another terminal run the nsqd daemon |
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| ``` |
| > ./nsqd --lookupd-tcp-address=127.0.0.1:4160 --broadcast-address=127.0.0.1 |
| ``` |
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| Now it's time to setup the connector |
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| Open the NSQ configuration file |
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| ``` |
| name=CamelNsqSourceConnector |
| connector.class=org.apache.camel.kafkaconnector.nsq.CamelNsqSourceConnector |
| key.converter=org.apache.kafka.connect.storage.StringConverter |
| value.converter=org.apache.kafka.connect.converters.ByteArrayConverter |
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| topics=mytopic |
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| camel.source.endpoint.servers=127.0.0.1 |
| camel.source.path.topic=eltopic |
| camel.source.endpoint.lookupServerPort=4161 |
| ``` |
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| And add the correct address for the server. |
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| Now you can run the example |
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| ``` |
| $KAFKA_HOME/bin/connect-standalone.sh $KAFKA_HOME/config/connect-standalone.properties config/CamelNsqSourceConnector.properties |
| ``` |
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| In one terminal send some messages |
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| ``` |
| > curl -d 'NSQ to Kafka message 1' 'http://127.0.0.1:4151/pub?topic=eltopic' |
| > curl -d 'NSQ to Kafka message 2' 'http://127.0.0.1:4151/pub?topic=eltopic' |
| ``` |
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| On a different terminal run the kafka-consumer and send messages to your Kafka Broker. |
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| ``` |
| bin/kafka-console-consumer.sh --topic mytopic --from-beginning --bootstrap-server localhost:9092 |
| NSQ to Kafka message 1 |
| NSQ to Kafka message 2 |
| ``` |
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