Dan Haywood created ISIS-1051:
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Summary: Only call LayoutMetadataReaderFromJson on entities
Key: ISIS-1051
URL: https://issues.apache.org/jira/browse/ISIS-1051
Project: Isis
Issue Type: Improvement
Affects Versions: core-1.7.0
Reporter: Dan Haywood
Assignee: Dan Haywood
Fix For: core-1.9.0
Taken from a comment by Martin on ISIS-931:
While debugging ISIS-911 I've noticed that
org.apache.isis.core.metamodel.layoutmetadata.json.LayoutMetadataReaderFromJson#asProperties
is expensive. It is called at start time and tries to load .layout.json file
for every introspected method. This includes JRE classes, JDO classes, and many
more. I think it should be called only for objects/entities. The expensiveness
is that it tries to find a file in the classpath and if it is not found then it
throws
org.apache.isis.core.metamodel.layoutmetadata.LayoutMetadataReader.ReaderException.
The stacktrace of this exception is ignored at
org.apache.isis.core.metamodel.specloader.specimpl.FacetedMethodsBuilder#readMetadataProperties
so
ReaderException could override java.lang.Throwable#fillInStackTrace() to return
null and save some time.
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