在类路径中添加Apache Beam direct runner可以通过以下步骤完成:
<dependency>
<groupId>org.apache.beam</groupId>
<artifactId>beam-runners-direct-java</artifactId>
<version>2.33.0</version>
</dependency>
import org.apache.beam.sdk.Pipeline;
import org.apache.beam.sdk.PipelineResult;
import import org.apache.beam.sdk.options.PipelineOptions;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.apache.beam.sdk.transforms.Create;
import org.apache.beam.sdk.transforms.DoFn;
import org.apache.beam.sdk.transforms.ParDo;
import org.apache.beam.sdk.values.PCollection;
PipelineOptions options = PipelineOptionsFactory.create();
Pipeline pipeline = Pipeline.create(options);
PCollection<String> input = pipeline.apply(Create.of("Hello", "World"));
PCollection<String> output = input.apply(ParDo.of(new DoFn<String, String>() {
@ProcessElement
public void processElement(ProcessContext c) {
String input = c.element();
String output = input.toUpperCase();
c.output(output);
}
}));
run()
方法来启动Pipeline,并使用waitUntilFinish()
方法等待Pipeline完成。以下是一个简单的示例:PipelineResult result = pipeline.run();
result.waitUntilFinish();
通过按照上述步骤,在类路径中添加Apache Beam direct runner,并使用Apache Beam进行数据处理和分析。
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