file-watch/file-watch-source/README.adoc

# Camel-Kafka-connector File Watch Source

This is an example for Camel-Kafka-connector File Watch Source

## Standalone

### What is needed

- A File System

### Running Kafka

```
$KAFKA_HOME/bin/zookeeper-server-start.sh $KAFKA_HOME/config/zookeeper.properties
$KAFKA_HOME/bin/kafka-server-start.sh $KAFKA_HOME/config/server.properties
$KAFKA_HOME/bin/kafka-topics.sh --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic mytopic
```

## Setting up the needed bits and running the example

You'll need to setup the plugin.path property in your kafka

Open the `$KAFKA_HOME/config/connect-standalone.properties`

and set the `plugin.path` property to your choosen location

In this example we'll use `/home/oscerd/connectors/`

```
> cd /home/oscerd/connectors/
> wget https://repo1.maven.org/maven2/org/apache/camel/kafkaconnector/camel-file-watch-kafka-connector/0.11.5/camel-file-watch-kafka-connector-0.11.5-package.tar.gz
> untar.gz camel-file-watch-kafka-connector-0.11.5-package.tar.gz
```

Now it's time to setup the connectors

Open the File Watch configuration file

```
name=CamelFilewatchSourceConnector
connector.class=org.apache.camel.kafkaconnector.filewatch.CamelFilewatchSourceConnector
key.converter=org.apache.kafka.connect.storage.StringConverter
value.converter=org.apache.kafka.connect.storage.StringConverter

topics=mytopic

camel.source.path.path=<path_to_dir>
```

and add the correct directory to watch.

Now you can run the example

```
$KAFKA_HOME/bin/connect-standalone.sh $KAFKA_HOME/config/connect-standalone.properties config/CamelFileWatchSourceConnector.properties
```

Create some files into your directory of choice. For example we create the file test.txt in the directory /home/oscerd/test-file-watch/

Through kafkacat you should see the info coming in.

This component return all of the information as headers.

```
> ./kafkacat -b localhost:9092 -t mytopic -f 'Headers: %h Value: %s'
Headers: CamelHeader.CamelFileAbsolute=true,CamelHeader.CamelFileAbsolutePath=/home/oscerd/test-file-watch/test.txt,CamelHeader.CamelFileEventType=CREATE,CamelHeader.CamelFileLastModified=1609758044292,CamelHeader.CamelFileName=test.txt,CamelHeader.CamelFileNameConsumed=test.txt,CamelHeader.CamelFileNameOnly=test.txt,CamelHeader.CamelFileParent=/home/oscerd/test-file-watch,CamelHeader.CamelFilePath=/home/oscerd/test-file-watch/test.txt,CamelHeader.CamelFileRelativePath=test.txt,CamelProperty.CamelToEndpoint=direct://end?pollingConsumerBlockTimeout=0&pollingConsumerBlockWhenFull=true&pollingConsumerQueueSize=1000 Value: /home/oscerd/test-file-watch/test.txt
% Reached end of topic mytopic [0] at offset 1
```