liferoad opened a new issue, #34690:
URL: https://github.com/apache/beam/issues/34690
### What happened?
Test YAML:
```
pipeline:
type: chain
transforms:
- type: Create
config:
elements: [1, 2, 3]
- type: LogForTesting
input: Create
```
When running this with `python -m apache_beam.yaml.main
--yaml_pipeline_file=test_chain.yaml`, got this error:
```
INFO:root:Missing pipeline option (runner). Executing pipeline using the
default runner: DirectRunner.
Building pipeline...
Traceback (most recent call last):
File "/Users/xqhu/miniconda3/lib/python3.10/runpy.py", line 196, in
_run_module_as_main
return _run_code(code, main_globals, None,
File "/Users/xqhu/miniconda3/lib/python3.10/runpy.py", line 86, in
_run_code
exec(code, run_globals)
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/apache_beam/yaml/main.py",
line 183, in <module>
run()
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/apache_beam/yaml/main.py",
line 129, in run
constructor(p)
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/apache_beam/yaml/main.py",
line 170, in constructor
yaml_transform.expand_pipeline(
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/apache_beam/yaml/yaml_transform.py",
line 1114, in expand_pipeline
validate_against_schema(pipeline_spec, validate_schema)
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/apache_beam/yaml/yaml_transform.py",
line 88, in validate_against_schema
raise exn
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/apache_beam/yaml/yaml_transform.py",
line 85, in validate_against_schema
jsonschema.validate(pipeline, pipeline_schema(strictness))
File
"/Users/xqhu/PlayGround/yaml/venv1/lib/python3.10/site-packages/jsonschema/validators.py",
line 1332, in validate
raise error
jsonschema.exceptions.ValidationError: 'Create' should not be valid under {}
around line 8
Failed validating 'not' in
schema['properties']['pipeline']['allOf'][2]['then']['properties']['transforms']['items']['properties']['input']:
{'not': {}}
On instance['pipeline']['transforms'][1]['input']:
'Create'
```
What should happen?
A better validation error that indicates both chain and input cannot be
given.
### Issue Priority
Priority: 2 (default / most bugs should be filed as P2)
### Issue Components
- [ ] Component: Python SDK
- [ ] Component: Java SDK
- [ ] Component: Go SDK
- [ ] Component: Typescript SDK
- [ ] Component: IO connector
- [x] Component: Beam YAML
- [ ] Component: Beam examples
- [ ] Component: Beam playground
- [ ] Component: Beam katas
- [ ] Component: Website
- [ ] Component: Infrastructure
- [ ] Component: Spark Runner
- [ ] Component: Flink Runner
- [ ] Component: Samza Runner
- [ ] Component: Twister2 Runner
- [ ] Component: Hazelcast Jet Runner
- [ ] Component: Google Cloud Dataflow Runner
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