[dna-issues] [JBoss JIRA] Commented: (DNA-404) Remove ObservationService, migrate usage to observe RepositoryLibrary

[Randall Hauch (JIRA)]

    [ https://jira.jboss.org/jira/browse/DNA-404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12468747#action_12468747 ] 

Randall Hauch commented on DNA-404:
-----------------------------------

Began the removal of ObservationService by first simplifying DnaEngine initialization.  Changed how the MIME type detectors are managed (no longer in RepositoryLibrary, which seemed the wrong place, and now in the DnaEngine proper), exposing the MIME type detectors via the DnaEngine's ExecutionContext.  Also removed the MimeType singleton class to ensure that all detection is done via the (existing) ExecutionContext.getMimeTypeDetector().mimeTypeOf(...) approach.

> Remove ObservationService, migrate usage to observe RepositoryLibrary
> ---------------------------------------------------------------------
>
>                 Key: DNA-404
>                 URL: https://jira.jboss.org/jira/browse/DNA-404
>             Project: DNA
>          Issue Type: Task
>          Components: Connectors, Graph, Sequencers
>    Affects Versions: 0.4
>            Reporter: Randall Hauch
>            Assignee: Randall Hauch
>            Priority: Blocker
>             Fix For: 0.5
>
>
> The ObservationService is no longer needed since DNA-252 has added an observation framework to the graph API and RepositoryLibrary now manages the list of registered observers.  All components that use the Observation Service should be changed to use Observers registered via the RepositoryLibrary.
> This will likely require changes to the Getting Started examples and documentation.

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