Steve Niemitz created BEAM-12767:
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Summary: Improve UX of PipelineOptions parsing
Key: BEAM-12767
URL: https://issues.apache.org/jira/browse/BEAM-12767
Project: Beam
Issue Type: Improvement
Components: sdk-java-core
Reporter: Steve Niemitz
Assignee: Steve Niemitz
Attempting to parse complex types in PipelineOptions can have a suboptimal UX.
For example, if the option type being parsed is an Instant, simply passing in:
{{--myInstant=2021-07-17 }}{{will fail. Instead the user must pass in
--myInstant="2021-07-17"}}{{, however, this is complicated by the fact that the
quotes will be stripped from the arguments in many cases, requiring a user to
actually pass in --myInstant='"2021-07-17"'. }}
This can be improved by attempting to parse the input twice, once as-is, and
then trying again by automatically wrapping it in quotes.
Additionally, it's impossible to use a custom JsonDeserializer on a pipeline
option property. We should allow using @JsonDeserialize on the getters to
supply a custom one.
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