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= Analysis =

== Overview ==
The goal of this task is to provide persistence of stickies.

== Task requirements ==
 * The user should be able to persist annotation sets.

 * Annotation sets are resources which can contain stickies, highlights and audio annotations. Currently only stickies are implemented.

 * Annotation sets should be persisted in zip files, just like Sophie books are saved (which are resources too).

 * "All annotations" palette should contain the following buttons:
  * Import Annotations...
   * When clicked, a file dialog for zip files is opened.
   * If the file is not a valid annotation set, an error message is displayed ("Invalid file.").
   * The annotation set is loaded in current book's window (not added in the book).
   * The annotation set is set as current for current book.
  * Export Annotations...
   * When clicked, a file dialog for zip files is opened.
   * If a file name is selected, current annotation set for current book is stored in the selected file.
   * If an error occurs, for example user wants to save on read-only media, an error message is displayed.

== Task result ==
 * Source code.

== Implementation idea ==
 * Create a {{{FileDialogInput}}} for zip files and use the {{{DialogManager}}} to display the dialog.

 * Create a persister between {{{AnnotationSet}}} and {{{Storage}}}.
 * Use {{{ZipPackagePersister}}} to persist between {{{Storage}}} and zip files.

== Related ==
[wiki:GROUP_ANNOTATIONS_R0]

== How to demo ==
^(Provide instructions for demonstration of the task.)^

= Design =
^(Describe your design here.)^

= Implementation =
^(Describe and link the implementation results here (from the wiki or the repository).)^

= Testing =
^(Place the testing results here.)^

= Comments =
^(Write comments for this or later revisions here.)