Imported Upstream version 0.18.1upstream/0.18.1

1 files changed, 208 insertions, 0 deletions

diff --git a/plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala b/plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala
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index 0000000..973eb38
--- /dev/null
+++ b/plugins/shotwell-data-imports/FSpotDatabaseBehavior.vala
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+/* 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;
+    }
+}
+
+}
+