[
https://issues.apache.org/jira/browse/AVRO-1762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matheus Santana updated AVRO-1762:
----------------------------------
Attachment: AVRO-1762.patch
This [sample application|https://github.com/geteloquent/avro-extension-sample]
illustrates the usage of applied improvements. It uses [POM-based
configuration|https://github.com/geteloquent/avro-extension-sample/blob/master/pom.xml#L48-L60]
to achieve complete customization of [generated source
code|https://github.com/geteloquent/avro-extension-sample/blob/master/target/generated-sources/avro/Person.java]
through [custom Velocity
template|https://github.com/geteloquent/avro-extension-sample/blob/master/src/main/velocity-templates/record.vm]
and a [custom
object|https://github.com/geteloquent/velocity-tools-avro/blob/master/src/main/java/br/com/me/CustomTool.java]
which gets injected into template's context.
Notes: i) I intend to gather feedback about the given modification's
suggestions, which may be improved, refactored and provided in the proper
{{.path}} format.
ii) Suggested modification is also available in this [Github
repository|https://github.com/geteloquent/avro/tree/AVRO-1762-velocity-custom-objects]
and the diff is accessible
[here|https://github.com/apache/avro/compare/trunk...geteloquent:AVRO-1762-velocity-custom-objects].
> Allow putting additional objects into the Velocity template
> -----------------------------------------------------------
>
> Key: AVRO-1762
> URL: https://issues.apache.org/jira/browse/AVRO-1762
> Project: Avro
> Issue Type: Improvement
> Components: java
> Reporter: Matheus Santana
> Attachments: AVRO-1762.patch
>
>
> This JIRA proposes the ability to inject custom POJOs into the Velocity
> template.
> It is possible [to override template directory
> configuration|https://issues.apache.org/jira/browse/AVRO-963?jql=project%20%3D%20AVRO%20AND%20component%20%3D%20java%20AND%20text%20~%20%22template%22]
> and thus make the compiler to generate customized code. However,
> customization possibilities are constrained to [Velocity Template
> Language|https://velocity.apache.org/engine/releases/velocity-1.5/user-guide.html#velocity_template_language_vtl:_an_introduction]
> and [objects
> injected|https://github.com/apache/avro/blob/trunk/lang/java/compiler/src/main/java/org/apache/avro/compiler/specific/SpecificCompiler.java#L339-L340]
> into the template's context.
> The ability of injecting custom objects into the template's context would
> leverage customization possibilities to the whole Java language itself. The
> patch I'm about to attach modifies both compiler and maven-plugin in order to
> provide client applications with the ability of easy injecting custom Java
> objects into the Velocity templates' context.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
