René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Make the PluginService respect enabled/disabled status","articleBody":"For plugins that \"might\" be available depending on the state of the system (e.g., available only if a particular optional dependency is available), it would be nice if they could disable themselves in the event of any issues at initialization time.\n\nFor example, as of this writing, the `JavaScriptScriptLanguage` tries to wrap a javascript JSR-223 `ScriptEngineFactory`. It is possible that the active JVM might not have a javascript implementation, in which case the `JavaScriptScriptLanguage` bombs out in its constructor, and an exception stack trace appears on the console about how `JavaScriptScriptLanguage` is an invalid plugin. Better would be if the JSSL could proactively check for the needed javascript `ScriptEngineFactory` and then disable itself (via `getInfo().setEnable(false)`) if the needed thing isn't available.\n\nTo make this work as desired, methods of the `DefaultPluginService` could filter out any disabled `PluginInfo` objects.\n","author":{"url":"https://github.com/ctrueden","@type":"Person","name":"ctrueden"},"datePublished":"2015-06-11T19:36:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/171/scijava-common/issues/171"}