[jira] [Commented] (SLING-2225) Improve support for embedding the Sling Launcher in Java applications

["Felix Meschberger (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLING-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13107692#comment-13107692 ] 

Felix Meschberger commented on SLING-2225:
------------------------------------------

Implemented improvements in Rev. 1172508. The Main class now has an officially extensible API:

   Main(Map<String, String> properties) -- creates the Main class with configuration properties
   doControlCommand() -- handles the start, stop, and status command line options
       (reflected as sling.control.action configuration property in the constructor)
   doStart() -- start Sling
   doStop() -- stop Sling

The main(String[] args) method still is present for the Java VM to start Sling. It is in this method, that documented command line options are parsed and converted into a map of properties to be used for the actual Sling startup.

> Improve support for embedding the Sling Launcher in Java applications
> ---------------------------------------------------------------------
>
>                 Key: SLING-2225
>                 URL: https://issues.apache.org/jira/browse/SLING-2225
>             Project: Sling
>          Issue Type: Improvement
>          Components: Launchpad
>    Affects Versions: Launchpad Base 2.3.0
>            Reporter: Felix Meschberger
>            Assignee: Felix Meschberger
>             Fix For: Launchpad Base 2.4.0
>
>
> The only way to embed the Sling launcher today is to build an array of command line options and call the static Main.main(String[] args) method from the application. This is kind of weird and only allows a small subset of configuration properties to be easily supplied by the calling application.
> In addition the handling of command line options is currently split between the Main and the MainDelagate class: The Main class implements the usage functionality (for the -h command line option) while the MainDelegate class implements the actual conversion of command line options to internal configuration property. This should be improved in that the support for real command lines should be consolidated in the Main class and the map of configuration properties supplied to the MainDelagate class should only contain actual configuration properties.

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