[GitHub] [beam] kennknowles opened a new issue, #18789: ValueProvider with default value fails using DirectRunner

[GitBox <gi...@apache.org>]

kennknowles opened a new issue, #18789:
URL: https://github.com/apache/beam/issues/18789

    The bug is shown by the following short piece of code. 
   ```
   
   public class ShowProblem implements Serializable {
     public interface MyOptions 
            extends
   PipelineOptions, DataflowPipelineOptions {
         @Description("OutputFile")
         @Default.String("gs://xyzzy/helloWorld")
    
       ValueProvider<String> getOutput();
         void setOutput(ValueProvider<String> value);
       }
    
   public static void main(String args[]) {
       MyOptions options =  PipelineOptionsFactory.fromArgs(args)  
                      .as(MyOptions.class);
       Pipeline pipeline = Pipeline.create(options);
       pipeline
    
         .apply(Create.of("hello", "world", "!"))
           .apply(TextIO.write().to(options.getOutput()));
    
     pipeline.run();
     }
   }
   
   
   ```
   
    If this pipeline is run with the "–output=gs://xyzzy/myfile" option, it runs fine both locally and on Google.  If this pipeline is run without the \--option, it runs fine on Google, but fails when run locally.
   
   When given an output argument, the ValueProvider returned by getOutput() is a StaticValueProvider; when using the default value returns a RuntimeValueProvider,   The latter seems to have a bug hinted at in the comment just above RuntimeValueProvider.get().  The code expects that when running the pipeline (and only when running the pipeline), someone has already called
   ```
   
   RuntimeValueProvider.setRuntimeOptions(options)
   ```
   
   There is apparently no call to this method when using a DirectRunner. 
   
    
   
    
   
    
   
    
   
   Imported from Jira [BEAM-4232](https://issues.apache.org/jira/browse/BEAM-4232). Original Jira may contain additional context.
   Reported by: fyellin.


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