[infinispan-issues] [JBoss JIRA] Commented: (ISPN-1065) Use a better mechanism to parse config files
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https://issues.jboss.org/browse/ISPN-1065?page=com.atlassian.jira.plugin....
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Sanne Grinovero commented on ISPN-1065:
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I'd love to be able to add structured configuration options to the Query engine, i.e.
not to pass a list of properties but have a set of proper elements which users could
validate via XSD.
The tricky part is that this structure is defined by the query submodule, so I wonder if
we can make this while still having the infinispan-query.jar optional: the parser should
be able to self-register extensions for different parts, or ignore unknown elements.
I don't expect the XSD to be dynamic too, so this might need to be built upfront from
the aggregation of all extension modules.
If not possible, what are the alternatives? shall we separate configuration files?
Use a better mechanism to parse config files
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Key: ISPN-1065
URL: https://issues.jboss.org/browse/ISPN-1065
Project: Infinispan
Issue Type: Enhancement
Components: Configuration
Affects Versions: 4.2.1.FINAL
Reporter: Manik Surtani
Assignee: Pete Muir
Priority: Blocker
Labels: jaxb
Fix For: 5.1.0.ALPHA1, 5.1.0.FINAL
The current codebase heavily relies on JAXB to:
1. Generate a XSD schema from a Configuration bean
2. Generate a parser to use with an XML configuration
This is known to be slow, and can significantly add to start up time:
{quote}
We did some analysis of our AS6 descriptor code which was using JAXB (800ms), compared to
straight stax (10ms)
{quote}
A possible solution could be to still use JAXB to generate the schema, but to also write
a Maven plugin which would generate a STAX parser based on the XSD schema and
Configuration bean at build time. Infinispan would then use this STAX parser rather than
a JAXB generated parser, which would be a lot faster.
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