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Apache Flink ComponentAvailable as of Camel 2.18 This documentation page covers the https://flink.apache.org component for the Apache Camel. The camel-flink component provides a bridge between Camel connectors and Flink tasks. This Camel Flink connector provides a way to route message from various Maven users will need to add the following dependency to their <dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-flink</artifactId>
<version>x.x.x</version>
<!-- use the same version as your Camel core version -->
</dependency>
Currently, the Flink Component supports only Producers. One can create DataSet, DataStream jobs. URI formatflink:dataset?dataset=#myDataSet&dataSetCallback=#dataSetCallback flink:datastream?datastream=#myDataStream&dataStreamCallback=#dataStreamCallback You can append query options to the URI in the following format, FlinkEndpoint Options
FlinkComponent Options
ExamplesFlink DataSet Callback @Bean
public DataSetCallback<Long> dataSetCallback() {
return new DataSetCallback<Long>() {
public Long onDataSet(DataSet dataSet, Object... objects) {
try {
dataSet.print();
return new Long(0);
} catch (Exception e) {
return new Long(-1);
}
}
};
}
Flink DataStream Callback @Bean
public VoidDataStreamCallback dataStreamCallback() {
return new VoidDataStreamCallback() {
@Override
public void doOnDataStream(DataStream dataStream, Object... objects) throws Exception {
dataStream.flatMap(new Splitter()).print();
environment.execute("data stream test");
}
};
}
Flink Producer CamelContext camelContext = new SpringCamelContext(context);
String pattern = "foo";
try {
ProducerTemplate template = camelContext.createProducerTemplate();
camelContext.start();
Long count = template.requestBody("flink:dataSet?dataSet=#myDataSet&dataSetCallback=#countLinesContaining", pattern, Long.class);
} finally {
camelContext.stop();
}
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