[jira] [Assigned] (CAMEL-19056) Evaluate implementing a fluent context builder

["Otavio Rodolfo Piske (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-19056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Otavio Rodolfo Piske reassigned CAMEL-19056:
--------------------------------------------

    Assignee: Otavio Rodolfo Piske

> Evaluate implementing a fluent context builder 
> -----------------------------------------------
>
>                 Key: CAMEL-19056
>                 URL: https://issues.apache.org/jira/browse/CAMEL-19056
>             Project: Camel
>          Issue Type: Task
>          Components: camel-core
>            Reporter: Otavio Rodolfo Piske
>            Assignee: Otavio Rodolfo Piske
>            Priority: Major
>
> After we finish streamlining the extensions interface on the {{{}CamelContext{}}}, we can evaluate creating a fluent interface API for building contexts. Therefore, we could try to separate the context configuration from the instantiation and provide the context configuration that is suitable for the user / scenario.
> For instance, today users have to do something like this:
> {code:java}
> CamelContext context = new DefaultContext();
>  
> context.setName("something");
> context.setDescription("another thing");
> // an so on.
> {code}
>  
> In concrete terms, we could investigate modifying the configuration to look like this:
> {code:java}
> CamelContext context = ContextConfigurationBuilder
>       .newDefaultConfiguration()
>       .withName("something")
>       .withDescription("another thing")
>       .build()
>  
> // No need for setters on the context -> make it immutable
> {code}
>  
> We can also provide configurationBuilders for scenarios where immutability is undesired as well as allowing the build of contexts with the older API for users converting to 4.x
> {code:java}
>  
> CamelContext context = ContextConfigurationBuilder
>       .newDefaultConfiguration()
>       .withName("something")
>       .withDescription("another thing")
>       .buildLegacy();  // returns a context instance with all the setters / getters that the users may expect {code}
>  
> The main goals are to:
> 1. Allow the creation of contexts that are truly immutable
> 2. Simplify removing / abstracting runtime configuration that may not be needed in some cases (thus helping keeping the context lightweight for Quarkus, Camel K and other scenarios)



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