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https://issues.apache.org/jira/browse/KARAF-220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guillaume Nodet updated KARAF-220:
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Fix Version/s: (was: 2.2.0)
> provide a text entry option with remembered default values for 'wizard' like
> commands
> -------------------------------------------------------------------------------------
>
> Key: KARAF-220
> URL: https://issues.apache.org/jira/browse/KARAF-220
> Project: Karaf
> Issue Type: New Feature
> Components: console
> Reporter: james strachan
>
> For example, imagine a command line "mvn release:prepare" or imagine a simple
> command which creates a new Java source file using some kind of template. You
> might want to allow folks to specify the package name to use, or release
> number to use for a command using an option. But if the option isn't supplied
> you might want to prompt the user with a guessed default value - which may
> well be fine most of the time, so users can just type 'enter' to accept the
> default, or provide a new value.
> e.g..
> imagine a "foo create mdb" command which creates a Message Driven Bean java
> class. If the user types the following in the console....
> {code}
> $ foo create mdb bar
> Creating Message Driven Bean class Bar
> package: [org.acme.foo]: _
> {code}
> if the user hits enter, then the default value is accepted otherwise they can
> enter the value. Just like with "mvn release" where the plugin guesses decent
> values for all the options.
> Lets say the user enters "org.acme.foo.mdb" as the value then creates another
> MDB...
> {code}
> $ foo create mdb bar
> Creating Message Driven Bean class Bar
> package: [org.acme.foo]: org.acme.foo.mdb
> Created MDB in org.acme.foo.mdb.Bar
> $ foo create mdb another
> package: [org.acme.foo.mdb]: _
> {code}
> Here the system has remembered what the user typed for an option so it can be
> defaulted in the next time.
> So given all the nice injection & annotations stuff in the Karaf console; I'm
> wondering if we can reuse the same options to from inside the execution of a
> command, be able to ask the user for an option (if it was not specified in
> the original command line) showing a default value - which if required can
> also be saved using the User Preferences stuff.
> something along the line of...
> public interface EntryForm {
> public boolean promptUser(Action action, String optionName, String prompt);
> }
> with maybe a separate API for use when the users response should be
> remembered in UserPreferences for next time the user executes a similar
> command.
> A great use case for the 'remembering' is when we create commands which code
> generate XML or Java code into a directory or package; which will likely
> remain the same for a project, but we may generate multiple instances of the
> same kind of thing. e.g. like creating entities or controllers in Rails,
> creating RouteBuilders in Camel or whatever
> UserPreferences stuff here:
> http://download.oracle.com/javase/1.5.0/docs/guide/preferences/index.html
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