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Diffstat (limited to 'plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala')
| -rw-r--r-- | plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala b/plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala new file mode 100644 index 0000000..973eb38 --- /dev/null +++ b/plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala @@ -0,0 +1,208 @@ +/* Copyright 2011-2014 Yorba Foundation + * + * This software is licensed under the GNU Lesser General Public License + * (version 2.1 or later). See the COPYING file in this distribution. + */ + +namespace DataImports.FSpot.Db { + +private class FSpotBehaviorEntry { + private Utils.VersionNumber version; + private FSpotTableBehavior behavior; + + public FSpotBehaviorEntry(Utils.VersionNumber version, FSpotTableBehavior behavior) { + this.version = version; + this.behavior = behavior; + } + + public Utils.VersionNumber get_version() { + return version; + } + + public FSpotTableBehavior get_behavior() { + return behavior; + } +} + +/** + * A class that consolidates the behavior of all F-Spot tables (apart from meta) + * and is the one place to check whether the database version is supported. + */ +public class FSpotDatabaseBehavior : Object { + // Minimum unsupported version: any database from that version and above + // is not supported as it's too new and support has not been provided + // In practice, the code may work with future versions but this cannot be + // guaranteed as it hasn't been tested so it's probably better to just + // bomb out at that point rather than risk importing incorrect data + public static Utils.VersionNumber MIN_UNSUPPORTED_VERSION = + new Utils.VersionNumber({ 19 }); + private static Gee.Map<string, Gee.List<FSpotBehaviorEntry>> behavior_map; + + private FSpotTableBehavior<FSpotPhotoRow> photos_behavior; + private FSpotTableBehavior<FSpotTagRow> tags_behavior; + private FSpotTableBehavior<FSpotPhotoTagRow> photo_tags_behavior; + private FSpotTableBehavior<FSpotPhotoVersionRow> photo_versions_behavior; + private FSpotTableBehavior<FSpotRollRow> rolls_behavior; + + public static void create_behavior_map() { + behavior_map = new Gee.HashMap<string, Gee.List<FSpotBehaviorEntry>>(); + // photos table + Gee.List<FSpotBehaviorEntry> photos_list = new Gee.ArrayList<FSpotBehaviorEntry>(); + // v0-4 + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 0 }), + FSpotPhotosV0Behavior.get_instance() + )); + // v5-6 + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 5 }), + FSpotPhotosV5Behavior.get_instance() + )); + // v7-10 + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 7 }), + FSpotPhotosV7Behavior.get_instance() + )); + // v11-15 + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 11 }), + FSpotPhotosV11Behavior.get_instance() + )); + // v16 + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 16 }), + FSpotPhotosV16Behavior.get_instance() + )); + // v17 + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 17 }), + FSpotPhotosV17Behavior.get_instance() + )); + // v18+ + photos_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 18 }), + FSpotPhotosV18Behavior.get_instance() + )); + behavior_map.set(FSpotPhotosTable.TABLE_NAME, photos_list); + // tags table + Gee.List<FSpotBehaviorEntry> tags_list = new Gee.ArrayList<FSpotBehaviorEntry>(); + // v0+ + tags_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 0 }), + FSpotTagsV0Behavior.get_instance() + )); + behavior_map.set(FSpotTagsTable.TABLE_NAME, tags_list); + // photo_tags table + Gee.List<FSpotBehaviorEntry> photo_tags_list = new Gee.ArrayList<FSpotBehaviorEntry>(); + // v0+ + photo_tags_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 0 }), + FSpotPhotoTagsV0Behavior.get_instance() + )); + behavior_map.set(FSpotPhotoTagsTable.TABLE_NAME, photo_tags_list); + // photo_versions table + Gee.List<FSpotBehaviorEntry> photo_versions_list = new Gee.ArrayList<FSpotBehaviorEntry>(); + // v0-8 + photo_versions_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 0 }), + FSpotPhotoVersionsV0Behavior.get_instance() + )); + // v9-15 + photo_versions_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 9 }), + FSpotPhotoVersionsV9Behavior.get_instance() + )); + // v16 + photo_versions_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 16 }), + FSpotPhotoVersionsV16Behavior.get_instance() + )); + // v17 + photo_versions_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 17 }), + FSpotPhotoVersionsV17Behavior.get_instance() + )); + // v18+ + photo_versions_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 18 }), + FSpotPhotoVersionsV18Behavior.get_instance() + )); + behavior_map.set(FSpotPhotoVersionsTable.TABLE_NAME, photo_versions_list); + // rolls table + Gee.List<FSpotBehaviorEntry> rolls_list = new Gee.ArrayList<FSpotBehaviorEntry>(); + // v0-4 + rolls_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 0 }), + FSpotRollsV0Behavior.get_instance() + )); + // v5+ + rolls_list.add(new FSpotBehaviorEntry( + new Utils.VersionNumber({ 5 }), + FSpotRollsV5Behavior.get_instance() + )); + behavior_map.set(FSpotRollsTable.TABLE_NAME, rolls_list); + } + + public static FSpotTableBehavior? find_behavior(string table_name, Utils.VersionNumber version) { + FSpotTableBehavior behavior = null; + Gee.List<FSpotBehaviorEntry> behavior_list = behavior_map.get(table_name); + if (behavior_list != null) + foreach (FSpotBehaviorEntry entry in behavior_list) { + if (version.compare_to(entry.get_version()) >= 0) + behavior = entry.get_behavior(); + } + else + warning("Could not find behavior list for table %s", table_name); + return behavior; + + } + public FSpotDatabaseBehavior(Utils.VersionNumber version) throws Spit.DataImports.DataImportError { + if (version.compare_to(MIN_UNSUPPORTED_VERSION) >= 0) + throw new Spit.DataImports.DataImportError.UNSUPPORTED_VERSION("Version %s is not yet supported", version.to_string()); + + FSpotTableBehavior? photos_generic_behavior = find_behavior(FSpotPhotosTable.TABLE_NAME, version); + if (photos_generic_behavior != null) + photos_behavior = photos_generic_behavior as FSpotTableBehavior<FSpotPhotoRow>; + FSpotTableBehavior? tags_generic_behavior = find_behavior(FSpotTagsTable.TABLE_NAME, version); + if (tags_generic_behavior != null) + tags_behavior = tags_generic_behavior as FSpotTableBehavior<FSpotTagRow>; + FSpotTableBehavior? photo_tags_generic_behavior = find_behavior(FSpotPhotoTagsTable.TABLE_NAME, version); + if (photo_tags_generic_behavior != null) + photo_tags_behavior = photo_tags_generic_behavior as FSpotTableBehavior<FSpotPhotoTagRow>; + FSpotTableBehavior? photo_versions_generic_behavior = find_behavior(FSpotPhotoVersionsTable.TABLE_NAME, version); + if (photo_versions_generic_behavior != null) + photo_versions_behavior = photo_versions_generic_behavior as FSpotTableBehavior<FSpotPhotoVersionRow>; + FSpotTableBehavior? rolls_generic_behavior = find_behavior(FSpotRollsTable.TABLE_NAME, version); + if (rolls_generic_behavior != null) + rolls_behavior = rolls_generic_behavior as FSpotTableBehavior<FSpotRollRow>; + + if (photos_behavior == null || tags_behavior == null || + photo_tags_behavior == null || photo_versions_behavior == null || + rolls_behavior == null + ) + throw new Spit.DataImports.DataImportError.UNSUPPORTED_VERSION("Version %s is not supported", version.to_string()); + } + + public FSpotTableBehavior<FSpotPhotoRow> get_photos_behavior() { + return photos_behavior; + } + + public FSpotTableBehavior<FSpotTagRow> get_tags_behavior() { + return tags_behavior; + } + + public FSpotTableBehavior<FSpotPhotoTagRow> get_photo_tags_behavior() { + return photo_tags_behavior; + } + + public FSpotTableBehavior<FSpotPhotoVersionRow> get_photo_versions_behavior() { + return photo_versions_behavior; + } + + public FSpotTableBehavior<FSpotRollRow> get_rolls_behavior() { + return rolls_behavior; + } +} + +} + |