stephane campinas created ARROW-7206:
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Summary: avoid string concatenation when calling
Preconditions#checkArgument
Key: ARROW-7206
URL: https://issues.apache.org/jira/browse/ARROW-7206
Project: Apache Arrow
Issue Type: Improvement
Components: Java
Reporter: stephane campinas
Assignee: stephane campinas
Attachments: after.png, before.png
Preconditions#checkArgument is called in VectorLoader with the String message
already built.
This causes some noticeable overhead as can be seen from the attached flame
graphs.
Calling checkArgument with an error template instead avoids the call to
StringBuilder as can be seen in the `after` image.
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