Classify EhFilter

app/src/main/java/com/hippo/ehviewer/client/EhFilter.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2019 Hippo Seven
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hippo.ehviewer.client;
+
+import android.util.Log;
+import com.hippo.ehviewer.EhDB;
+import com.hippo.ehviewer.dao.Filter;
+import java.util.ArrayList;
+import java.util.List;
+
+public final class EhFilter {
+
+    private static final String TAG = EhFilter.class.getSimpleName();
+
+    public static final int MODE_TITLE = 0;
+    public static final int MODE_UPLOADER = 1;
+    public static final int MODE_TAG = 2;
+    public static final int MODE_TAG_NAMESPACE = 3;
+
+    private final List<Filter> mTitleFilterList = new ArrayList<>();
+    private final List<Filter> mUploaderFilterList = new ArrayList<>();
+    private final List<Filter> mTagFilterList = new ArrayList<>();
+    private final List<Filter> mTagNamespaceFilterList = new ArrayList<>();
+
+    private static EhFilter sInstance;
+
+    public static EhFilter getInstance() {
+        if (sInstance == null) {
+            sInstance = new EhFilter();
+        }
+        return sInstance;
+    }
+
+    private EhFilter() {
+        List<Filter> list = EhDB.getAllFilter();
+        for (int i = 0, n = list.size(); i < n; i++) {
+            Filter filter = list.get(i);
+            switch (filter.mode) {
+                case MODE_TITLE:
+                    filter.text = filter.text.toLowerCase();
+                    mTitleFilterList.add(filter);
+                    break;
+                case MODE_UPLOADER:
+                    mUploaderFilterList.add(filter);
+                    break;
+                case MODE_TAG:
+                    filter.text = filter.text.toLowerCase();
+                    mTagFilterList.add(filter);
+                    break;
+                case MODE_TAG_NAMESPACE:
+                    filter.text = filter.text.toLowerCase();
+                    mTagNamespaceFilterList.add(filter);
+                    break;
+                default:
+                    Log.d(TAG, "Unknown mode: " + filter.mode);
+                    break;
+            }
+        }
+    }
+
+    public List<Filter> getTitleFilterList() {
+        return mTitleFilterList;
+    }
+
+    public List<Filter> getUploaderFilterList() {
+        return mUploaderFilterList;
+    }
+
+    public List<Filter> getTagFilterList() {
+        return mTagFilterList;
+    }
+
+    public List<Filter> getTagNamespaceFilterList() {
+        return mTagNamespaceFilterList;
+    }
+}