LogstashMarker refactoring #636
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Most Logstash marker don't have any children/reference at all. Creating the referenceList upfront is a waste of memory and additional pressure on the GC. This commit modifies the implementation to create the reference list when the first reference is added.
This class is now our own implementation - remove copy of SLF4J copyright notice
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@philsttr |
philsttr
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Sep 9, 2021
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@philsttr EmptyLogstashMarker does not override equals/hascode. Equality is therefore solely on the marker name. Most (if not all) other logstash markers also require that "other" is of the exact same class. Shouldn't it be the case here as well ?
Yes, please add a check for the same class.
src/main/java/net/logstash/logback/marker/MapEntriesAppendingMarker.java
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src/main/java/net/logstash/logback/argument/DeferredStructuredArgument.java
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contains() should accept null values and return false in this case. Calling code will not have to test for nullability before using the method and still have a consistent result
Revert changes made to equals() in f29bb2c
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Most Logstash marker don't have any children/reference at all. Creating the referenceList upfront is a waste of memory and additional pressure on the GC. This PR modifies the implementation to create the reference list eagerly when the first reference is added. See #617 (comment) for the motivations behind this change.