1 files changed, 86 insertions, 0 deletions
diff --git a/main/src/cgeo/geocaching/filter/FilterRegistry.java b/main/src/cgeo/geocaching/filter/FilterRegistry.java
new file mode 100644
index 0000000..d6d9db9
--- /dev/null
+++ b/main/src/cgeo/geocaching/filter/FilterRegistry.java
@@ -0,0 +1,86 @@
+package cgeo.geocaching.filter;
+
+import cgeo.geocaching.CgeoApplication;
+import cgeo.geocaching.R;
+import cgeo.geocaching.filter.SizeFilter.Factory;
+
+import org.apache.commons.lang3.StringUtils;
+import org.eclipse.jdt.annotation.NonNull;
+
+import android.content.res.Resources;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * singleton registry of all available filter components
+ *
+ */
+public class FilterRegistry {
+    private final List<FactoryEntry> registry = new ArrayList<>();
+    private static Resources res;
+
+    static class FactoryEntry {
+        private final String name;
+        private final @NonNull Class<? extends IFilterFactory> filterFactory;
+
+        public FactoryEntry(final String name, final @NonNull Class<? extends IFilterFactory> filterFactory) {
+            this.name = name;
+            this.filterFactory = filterFactory;
+        }
+
+        @Override
+        public String toString() {
+            return name;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public Class<? extends IFilterFactory> getFactory() {
+            return filterFactory;
+        }
+    }
+
+    private static class SingletonHolder {
+        private static final FilterRegistry INSTANCE = new FilterRegistry();
+    }
+
+    public static FilterRegistry getInstance() {
+        return SingletonHolder.INSTANCE;
+    }
+
+    private FilterRegistry() {
+        res = CgeoApplication.getInstance().getResources();
+        register(R.string.caches_filter_type, TypeFilter.Factory.class);
+        register(R.string.caches_filter_size, SizeFilter.Factory.class);
+        register(R.string.cache_terrain, TerrainFilter.Factory.class);
+        register(R.string.cache_difficulty, DifficultyFilter.Factory.class);
+        register(R.string.cache_attributes, AttributeFilter.Factory.class);
+        register(R.string.cache_status, StateFilterFactory.class);
+        register(R.string.caches_filter_origin, OriginFilter.Factory.class);
+        register(R.string.caches_filter_distance, DistanceFilter.Factory.class);
+        register(R.string.caches_filter_popularity, PopularityFilter.Factory.class);
+        register(R.string.caches_filter_popularity_ratio, PopularityRatioFilter.Factory.class);
+        register(R.string.caches_filter_personal_data, PersonalDataFilterFactory.class);
+    }
+
+    private void register(final int resourceId, final @NonNull Class<? extends IFilterFactory> factoryClass) {
+        registry.add(new FactoryEntry(res.getString(resourceId), factoryClass));
+    }
+
+    public String getFactoryName(final Class<Factory> factoryClass) {
+        for (final FactoryEntry entry : registry) {
+            if (entry.filterFactory == factoryClass) {
+                return entry.name;
+            }
+        }
+        return StringUtils.EMPTY;
+    }
+
+    public List<FactoryEntry> getFactories() {
+        return Collections.unmodifiableList(registry);
+    }
+}