Readme.mdに説明を追加

デバッグメニューから不要になったアイテムを削除

.github/ISSUE_TEMPLATE/不具合用テンプレート.md

@@ -0,0 +1,17 @@
+---
+name: 不具合用テンプレート
+about: 不具合用テンプレート
+title: "[BUG]: "
+labels: バグ
+assignees: ''
+
+---
+
+# 概要
+<!-- Issueの概要 -->
+
+# 詳細
+<!-- バグの詳細 -->
+
+# 影響箇所
+<!-- 予想される影響箇所(省略可) -->

.github/ISSUE_TEMPLATE/改善用テンプレート.md

@@ -0,0 +1,17 @@
+---
+name: 改善用テンプレート
+about: 改善用テンプレート
+title: "[IMPROVE]"
+labels: ''
+assignees: ''
+
+---
+
+# 概要
+<!-- Issueの概要 -->
+
+# 詳細
+<!-- 改善内容の詳細 -->
+
+# 影響箇所
+<!-- 予想される影響箇所(省略可) -->

.github/ISSUE_TEMPLATE/新機能用テンプレート.md

@@ -1,10 +1,20 @@
 ---
 name: 新機能用テンプレート
-about: 新規開発Issue用テンプレート
+about: 新規能用テンプレート
 title: ''
-labels: ''
+labels: 新機能
 assignees: ''
 
 ---
 
-WIP
+# 概要
+<!-- Issueの概要 -->
+
+# 詳細
+<!-- 機能の詳細 -->
+
+# 関連Issue
+<!-- 関連するIssueがあれば -->
+
+# 影響箇所
+<!-- 予想される影響箇所(省略可) -->

.github/PULL_REQUEST_TEMPLATE/general.md

@@ -0,0 +1,18 @@
+# 概要
+<!-- PRの概要 -->
+
+# 関連Issue
+- #000 <!-- 関連するIssueを指定(なければ省略可) -->
+
+# 詳細
+<!-- 詳細 -->
+
+# 影響箇所
+<!-- 予想される影響箇所 -->
+
+# チェック
+<!-- 参考用, 全てにチェックがついている必要があるわけではありません -->
+- [ ] 機能として完成している
+  - [ ] WIP(Work in progress: 作業中)
+- [ ] 正常にビルド/起動ができる
+- [ ] 既存の機能を壊していない

.idea/deploymentTargetDropDown.xml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="deploymentTargetDropDown">
-    <runningDeviceTargetSelectedWithDropDown>
-      <Target>
-        <type value="RUNNING_DEVICE_TARGET" />
-        <deviceKey>
-          <Key>
-            <type value="SERIAL_NUMBER" />
-            <value value="ZY227DCBHN" />
-          </Key>
-        </deviceKey>
-      </Target>
-    </runningDeviceTargetSelectedWithDropDown>
-    <timeTargetWasSelectedWithDropDown value="2023-12-21T04:53:14.729902700Z" />
-  </component>
-</project>

README.md

@@ -7,6 +7,44 @@ WIP
 ## メモ
 - アイコン: Google Material Icons https://fonts.google.com/icons (Weight:300, Grade:0, Optical size: 24px)
 
+## モジュール構成
+### モジュール一覧
+- `component` : コンポーネント
+  - `common` : 共通コンポーネント
+    - UIの中で共通で使う要素(メニューアイテムとか)
+  - `scanner` : スキャナー
+    - スキャナーの実装
+  - `viewer` : ビューワー
+    - ドキュメントビューワーの実装
+- `data` : データ
+  - UIからデータを取得/保存するためのラッパーモジュール
+  - `Document` : ドキュメント関係
+    - WIP(JavaDocを参照してください, 余裕があったら追記します)
+- `feature` : 機能モジュール(ナビゲーションからみた機能で分割)
+  - `common`: 共通機能
+    - 設定画面とか、どこからでも呼ばれうる画面
+  - `debug`: デバッグメニュー
+  - `home`: ホーム画面
+  - `library`: ライブラリ画面
+  - `scan`: スキャン画面
+  - `search`: 検索画面
+- `model` : モデル
+  - データモデルをまとめたモジュール (WIP)
+  - `document` : ドキュメント
+  - `meta` : メタデータ
+- `processor` : プロセッサ
+  - いくつかの処理をまとめたモジュール
+    - `DocumentProcessor` : ドキュメント処理（ドキュメントにページを追加したり更新したり） 
+- `shared` : 
+  - 共有リソース
+- `source` : ソース
+  - (バックエンドが使うのでとりあえず後回し、フロントから直接操作することは絶対にありません)
+- `utils` : ユーティリティ
+  - ちょっとしたユーティリティをまとめたモジュール
+  - `LacertaLogger` : ロガー
+  - `XmlMetaParser` : XMLメタデータパーサー(フロントから直接操作することは絶対にありません)
+
+
 ## コーディング規則/推奨(WIP)
 ### 規則
 - `// TODO`コメントには任意のsuffixを付ける

component/scanner/build.gradle

@@ -1,5 +1,6 @@
 plugins {
     alias(libs.plugins.com.android.library)
+    id 'com.google.dagger.hilt.android'
 }
 
 android {
@@ -33,8 +34,16 @@ dependencies {
     androidTestImplementation libs.androidx.test.ext.junit
     androidTestImplementation libs.androidx.test.espresso.core
 
+    // Hilt (DI)
+    implementation libs.com.google.dagger.hilt.android
+    annotationProcessor libs.com.google.dagger.hilt.compiler
+
     implementation 'com.websitebeaver:documentscanner:1.0.0'
 
     implementation project(':shared:ui')
     implementation project(':model')
+
+    implementation project(':processor')
+
+    implementation project(':utils')
 }

component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerDataManagerStubFragment.java

@@ -25,15 +25,32 @@ import android.widget.Toast;
 import java.io.File;
 import java.io.IOException;
 import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.Locale;
+import java.util.UUID;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.model.document.DocumentMeta;
+import one.nem.lacerta.model.document.path.DocumentPath;
+import one.nem.lacerta.processor.DocumentProcessor;
+import one.nem.lacerta.processor.factory.DocumentProcessorFactory;
+
+import one.nem.lacerta.utils.LacertaLogger;
+
+import one.nem.lacerta.utils.repository.DeviceInfoUtils;
 
 /**
  * A simple {@link Fragment} subclass.
  * Use the {@link ScannerDataManagerStubFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
+@AndroidEntryPoint
 public class ScannerDataManagerStubFragment extends Fragment {
 
     // TODO-rca: 時間があったらcacheを使うようにする？
@@ -43,6 +60,19 @@ public class ScannerDataManagerStubFragment extends Fragment {
 
     private Uri photoURI;
 
+    private DocumentDetail documentDetail;
+
+    private DocumentProcessor documentProcessor;
+
+    @Inject
+    DocumentProcessorFactory documentProcessorFactory;
+
+    @Inject
+    LacertaLogger logger;
+
+    @Inject
+    DeviceInfoUtils deviceInfoUtils;
+
     private final ActivityResultLauncher<Intent> cameraLauncher = registerForActivityResult(
             new ActivityResultContracts.StartActivityForResult(),
             result -> {
@@ -120,6 +150,82 @@ public class ScannerDataManagerStubFragment extends Fragment {
             }
             updateResults();
         });
+
+        view.findViewById(R.id.button_create_documnent).setOnClickListener(v -> {
+            Log.d("ScannerDataManagerStubFragment", "button_create_documnent clicked");
+            Toast.makeText(getActivity(), "button_create_documnent clicked", Toast.LENGTH_LONG).show();
+
+            this.documentDetail = createSampleDocumentDetail();
+
+        });
+
+        view.findViewById(R.id.button_init_document_processor).setOnClickListener(v -> {
+            Log.d("ScannerDataManagerStubFragment", "button_init_document_processor clicked");
+            Toast.makeText(getActivity(), "button_init_document_processor clicked", Toast.LENGTH_LONG).show();
+            // TODO-rca: ここでDocumentProcessorを初期化する
+            if (this.documentDetail == null) {
+                Toast.makeText(getActivity(), "documentDetail is null", Toast.LENGTH_LONG).show();
+                return;
+            }
+            this.documentProcessor = documentProcessorFactory.create(this.documentDetail);
+            Toast.makeText(getActivity(), "documentProcessor created", Toast.LENGTH_LONG).show();
+            try {
+                this.documentProcessor.init();
+            } catch (Exception e) {
+                Toast.makeText(getActivity(), "Error occurred while initializing documentProcessor", Toast.LENGTH_LONG).show();
+                Log.e("ScannerDataManagerStubFragment", "Error occurred while initializing documentProcessor", e);
+            }
+            Toast.makeText(getActivity(), "documentProcessor initialized", Toast.LENGTH_LONG).show();
+        });
+
+        view.findViewById(R.id.button_add_page).setOnClickListener(v -> {
+            Log.d("ScannerDataManagerStubFragment", "button_add_page clicked");
+            Toast.makeText(getActivity(), "button_add_page clicked", Toast.LENGTH_LONG).show();
+            if (this.documentProcessor == null) {
+                Toast.makeText(getActivity(), "documentProcessor is null", Toast.LENGTH_LONG).show();
+                return;
+            }
+            Bitmap[] bitmaps = new Bitmap[results.size()];
+            for (int i = 0; i < results.size(); i++) {
+                bitmaps[i] = results.get(i).getBitmap();
+            }
+
+            try {
+                this.documentProcessor.addNewPagesToLast(bitmaps);
+            } catch (Exception e) {
+                Toast.makeText(getActivity(), "Error occurred while adding pages", Toast.LENGTH_LONG).show();
+                Log.e("ScannerDataManagerStubFragment", "Error occurred while adding pages", e);
+            }
+
+            Toast.makeText(getActivity(), "pages added", Toast.LENGTH_LONG).show();
+
+            try {
+                this.documentProcessor.close();
+            } catch (Exception e) {
+                Toast.makeText(getActivity(), "Error occurred while closing documentProcessor", Toast.LENGTH_LONG).show();
+                Log.e("ScannerDataManagerStubFragment", "Error occurred while closing documentProcessor", e);
+            }
+        });
+    }
+
+    public DocumentDetail createSampleDocumentDetail() {
+
+        String id = UUID.randomUUID().toString();
+
+        Toast.makeText(getActivity(), "Generated id: " + id, Toast.LENGTH_LONG).show();
+        //logger.debug("CreateSample", "Generated id: " + id);
+
+        DocumentMeta meta = new DocumentMeta(
+                id,
+                "Sample" + DateTimeFormatter.ofPattern("yyyyMMddHHmmss").format(LocalDateTime.now()),
+                new Date(),
+                new Date());
+
+        DocumentPath path = new DocumentPath(
+                deviceInfoUtils.getExternalStorageDirectoryString(),
+                "Sample" + DateTimeFormatter.ofPattern("yyyyMMddHHmmss").format(LocalDateTime.now()));
+
+        return new DocumentDetail(meta, path, "SampleAuthor", "SampleDefaultBranch");
     }
 
     @Override

component/scanner/src/main/res/layout/fragment_scanner_data_manager_stub.xml

@@ -11,6 +11,7 @@
         android:id="@+id/action_button_container"
         android:layout_width="match_parent"
         android:layout_height="0dp"
+        android:weightSum="2"
         android:orientation="horizontal"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -19,7 +20,7 @@
         <com.google.android.material.button.MaterialButton
             android:id="@+id/button_call_camera"
             style="@style/Widget.Material3.Button.IconButton.Filled"
-            android:layout_width="wrap_content"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_margin="16px"
             android:layout_weight="1"
@@ -27,6 +28,58 @@
 
     </LinearLayout>
 
+    <LinearLayout
+        android:id="@+id/init_button_container"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:orientation="horizontal"
+        android:weightSum="2"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/action_button_container">
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/button_create_documnent"
+            style="@style/Widget.Material3.Button.IconButton.Filled"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16px"
+            android:layout_weight="1"
+            android:text="Create Doc Obj" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/button_init_document_processor"
+            style="@style/Widget.Material3.Button.IconButton.Filled"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16px"
+            android:layout_weight="1"
+            android:text="Init Processor" />
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/doc_button_container"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:weightSum="2"
+        android:orientation="horizontal"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/init_button_container">
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/button_add_page"
+            style="@style/Widget.Material3.Button.IconButton.Filled"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="16px"
+            android:layout_weight="1"
+            android:text="Add page to last" />
+
+    </LinearLayout>
+
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/result_recycler_view"
         android:layout_width="match_parent"
@@ -35,6 +88,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/action_button_container" />
+        app:layout_constraintTop_toBottomOf="@id/doc_button_container" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/build.gradle

@@ -65,4 +65,7 @@ dependencies {
     // Scanner
     implementation project(':component:scanner')
 
+    // Processor
+    implementation project(':processor')
+
 }

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuDocProcessorTesterFragment.java

@@ -10,16 +10,16 @@ import android.view.ViewGroup;
 
 /**
  * A simple {@link Fragment} subclass.
- * Use the {@link DebugMenuMetaDataFragment#newInstance} factory method to
+ * Use the {@link DebugMenuDocProcessorTesterFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
-public class DebugMenuMetaDataFragment extends Fragment {
-    public DebugMenuMetaDataFragment() {
+public class DebugMenuDocProcessorTesterFragment extends Fragment {
+    public DebugMenuDocProcessorTesterFragment() {
         // Required empty public constructor
     }
 
-    public static DebugMenuMetaDataFragment newInstance() {
-        DebugMenuMetaDataFragment fragment = new DebugMenuMetaDataFragment();
+    public static DebugMenuDocProcessorTesterFragment newInstance() {
+        DebugMenuDocProcessorTesterFragment fragment = new DebugMenuDocProcessorTesterFragment();
         Bundle args = new Bundle();
         fragment.setArguments(args);
         return fragment;
@@ -28,12 +28,17 @@ public class DebugMenuMetaDataFragment extends Fragment {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
     }
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_debug_menu_meta_data, container, false);
+        View view = inflater.inflate(R.layout.fragment_debug_menu_doc_processor_tester, container, false);
+
+
+
+        return view;
     }
 }

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuTopFragment.java

@@ -12,6 +12,7 @@ import android.view.ViewGroup;
 import java.util.ArrayList;
 import java.util.List;
 
+import dagger.hilt.android.AndroidEntryPoint;
 import one.nem.lacerta.feature.debug.common.adapter.DebugMenuListItemAdapter;
 import one.nem.lacerta.feature.debug.common.model.DebugMenuListItem;
 
@@ -20,6 +21,7 @@ import one.nem.lacerta.feature.debug.common.model.DebugMenuListItem;
  * Use the {@link DebugMenuTopFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
+@AndroidEntryPoint
 public class DebugMenuTopFragment extends Fragment {
     public DebugMenuTopFragment() {
         // Required empty public constructor
@@ -46,7 +48,6 @@ public class DebugMenuTopFragment extends Fragment {
         recyclerView.setLayoutManager(new androidx.recyclerview.widget.LinearLayoutManager(getContext()));
         List<DebugMenuListItem> debugMenuListItems = new ArrayList<>();
 
-        debugMenuListItems.add(new DebugMenuListItem("Meta Data", "View meta data", R.id.action_debugMenuTopFragment_to_debugMenuMetaDataFragment, true));
         debugMenuListItems.add(new DebugMenuListItem("Document Tester", "placeholder", R.id.action_debugMenuTopFragment_to_debugMenuDocumentTesterTopFragment, true));
         debugMenuListItems.add(new DebugMenuListItem("Scanner", "placeholder", R.id.action_debugMenuTopFragment_to_scannerDataManagerStubFragment, true));
 

feature/debug/src/main/res/layout/fragment_debug_menu_doc_processor_tester.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:theme="@style/Theme.Lacerta"
+    tools:context=".DebugMenuDocProcessorTesterFragment" >
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="1dp"
+        android:layout_marginTop="1dp"
+        android:layout_marginEnd="1dp"
+        android:orientation="vertical"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/button_gen_random_img"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="Generate random image" />
+
+        </LinearLayout>
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_meta_data.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".DebugMenuMetaDataFragment">
-
-    <!-- TODO: Update blank fragment layout -->
-
-
-
-</FrameLayout>

feature/debug/src/main/res/navigation/feature_debug_internal_navigation.xml

@@ -10,9 +10,6 @@
         android:name="one.nem.lacerta.feature.debug.DebugMenuTopFragment"
         android:label="fragment_debug_menu_top"
         tools:layout="@layout/fragment_debug_menu_top" >
-        <action
-            android:id="@+id/action_debugMenuTopFragment_to_debugMenuMetaDataFragment"
-            app:destination="@id/debugMenuMetaDataFragment" />
         <action
             android:id="@+id/action_debugMenuTopFragment_to_debugMenuDocumentTesterTopFragment"
             app:destination="@id/debugMenuDocumentTesterTopFragment" />
@@ -20,11 +17,6 @@
             android:id="@+id/action_debugMenuTopFragment_to_scannerDataManagerStubFragment"
             app:destination="@id/scannerDataManagerStubFragment" />
     </fragment>
-    <fragment
-        android:id="@+id/debugMenuMetaDataFragment"
-        android:name="one.nem.lacerta.feature.debug.DebugMenuMetaDataFragment"
-        android:label="fragment_debug_menu_meta_data"
-        tools:layout="@layout/fragment_debug_menu_meta_data" />
     <fragment
         android:id="@+id/debugMenuDocumentTesterTopFragment"
         android:name="one.nem.lacerta.feature.debug.DebugMenuDocumentTesterTopFragment"

feature/library/build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'com.android.library'
+    id 'com.google.dagger.hilt.android'
 }
 
 android {
@@ -46,5 +47,9 @@ dependencies {
 
     implementation project(':shared:ui')
 
+    implementation project(':model')
+
+    implementation project(':data')
+
 
 }

feature/library/src/main/java/one/nem/lacerta/feature/library/DocumentAdapter.java

@@ -10,12 +10,18 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import java.util.List;
 
+import one.nem.lacerta.model.document.DocumentMeta;
+
 public class DocumentAdapter extends RecyclerView.Adapter<DocumentAdapter.DocumentViewHolder> {
 
-    private List<String> documentList;
+    private List<DocumentMeta> documentMetas;
 
-    public DocumentAdapter(List<String> documentList) {
-        this.documentList = documentList;
+    public DocumentAdapter(List<DocumentMeta> documentMetas) {
+        // nullの場合に例外を発生させる
+        if (documentMetas == null) {
+            throw new IllegalArgumentException("DocumentMetas list cannot be null or empty");
+        }
+        this.documentMetas = documentMetas;
     }
 
     @NonNull
@@ -27,12 +33,15 @@ public class DocumentAdapter extends RecyclerView.Adapter<DocumentAdapter.Docume
 
     @Override
     public void onBindViewHolder(@NonNull DocumentViewHolder holder, int position) {
-        holder.title.setText(documentList.get(position));
+        DocumentMeta documentMeta = documentMetas.get(position);
+        if (documentMeta != null) {
+            holder.title.setText(documentMeta.getTitle());
+        }
     }
 
     @Override
     public int getItemCount() {
-        return documentList.size();
+        return documentMetas.size();
     }
 
     class DocumentViewHolder extends RecyclerView.ViewHolder {
@@ -40,7 +49,7 @@ public class DocumentAdapter extends RecyclerView.Adapter<DocumentAdapter.Docume
 
         DocumentViewHolder(View itemView) {
             super(itemView);
-            title = itemView.findViewById(R.id.debug_menu_item_title);
+            title = itemView.findViewById(R.id.debug_menu_item_title); // 適切な id に変更する
         }
     }
-}
+}

feature/library/src/main/java/one/nem/lacerta/feature/library/LibraryArchiveFragment.java

@@ -8,6 +8,9 @@ import android.widget.TextView;
 import androidx.appcompat.app.AppCompatActivity;
 
 // LibraryArchiveFragment.java
+
+//画面変移用のコード
+//Fragmentへのデータの受け渡し機能
 public class LibraryArchiveFragment extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {

feature/library/src/main/java/one/nem/lacerta/feature/library/LibraryDocFragment.java

@@ -8,6 +8,7 @@ import android.widget.TextView;
 
 import androidx.fragment.app.Fragment;
 
+//Fragmentにデータを受け渡す機能
 public class LibraryDocFragment extends Fragment {
 
     private TextView textView;  // フィールドとして TextView を定義

feature/library/src/main/java/one/nem/lacerta/feature/library/LibraryTopFragment.java

@@ -13,17 +13,29 @@ import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.data.Document;
+import one.nem.lacerta.model.document.DocumentMeta;
+import one.nem.lacerta.model.document.tag.DocumentTag;
+
 /**
  * A simple {@link Fragment} subclass.
  * Use the {@link LibraryTopFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
+@AndroidEntryPoint
 public class LibraryTopFragment extends Fragment {
 
+    @Inject
+    Document document;
+
     // TODO: Rename parameter arguments, choose names that match
     // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
     private static final String ARG_PARAM1 = "param1";
@@ -76,13 +88,14 @@ public class LibraryTopFragment extends Fragment {
         LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
         documentRecyclerView.setLayoutManager(layoutManager);
 
-        List<String> documentList = new ArrayList<>();
-        documentList.add("Document A");
-        documentList.add("Document B");
-        documentList.add("Document C");
+        //データを取得
+
+        List<DocumentMeta>  metas = document.getAllDocumentMetas(100);
+
+        Toast.makeText(getContext(), "Documents: " + Integer.toString(metas.size()), Toast.LENGTH_LONG).show();
 
 // Create and set the adapter
-        DocumentAdapter adapter = new DocumentAdapter(documentList);
+        DocumentAdapter adapter = new DocumentAdapter(metas);
         documentRecyclerView.setAdapter(adapter);
 
 // Use a LinearLayoutManager to specify the layout

model/src/main/java/one/nem/lacerta/model/document/internal/XmlMetaModel.java

@@ -0,0 +1,73 @@
+package one.nem.lacerta.model.document.internal;
+
+import java.util.ArrayList;
+
+public class XmlMetaModel {
+
+    String title;
+    String author;
+    String description;
+//    Date created;
+//    Date updated;
+    String defaultBranch;
+    ArrayList<XmlMetaPageModel> pages;
+
+    // Constructor
+
+    public XmlMetaModel() {
+    }
+
+    public XmlMetaModel(String title, String author, String description, String defaultBranch, ArrayList<XmlMetaPageModel> pages) {
+        this.title = title;
+        this.author = author;
+        this.description = description;
+        this.defaultBranch = defaultBranch;
+        this.pages = pages;
+    }
+
+
+    // Getter
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public String getDefaultBranch() {
+        return defaultBranch;
+    }
+
+    public ArrayList<XmlMetaPageModel> getPages() {
+        return pages;
+    }
+
+    // Setter
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public void setDefaultBranch(String defaultBranch) {
+        this.defaultBranch = defaultBranch;
+    }
+
+    public void setPages(ArrayList<XmlMetaPageModel> pages) {
+        this.pages = pages;
+    }
+
+}

model/src/main/java/one/nem/lacerta/model/document/internal/XmlMetaPageModel.java

@@ -0,0 +1,27 @@
+package one.nem.lacerta.model.document.internal;
+
+public class XmlMetaPageModel {
+
+    String filename;
+
+    // Constructor
+
+    public XmlMetaPageModel() {
+    }
+
+    public XmlMetaPageModel(String filename) {
+        this.filename = filename;
+    }
+
+    // Getter
+
+    public String getFilename() {
+        return filename;
+    }
+
+    // Setter
+
+    public void setFilename(String filename) {
+        this.filename = filename;
+    }
+}

processor/build.gradle

@@ -32,4 +32,16 @@ dependencies {
     testImplementation libs.junit
     androidTestImplementation libs.androidx.test.ext.junit
     androidTestImplementation libs.androidx.test.espresso.core
+
+    // DI
+    implementation libs.com.google.dagger.hilt.android
+    annotationProcessor libs.com.google.dagger.hilt.compiler
+
+    // JGit
+    implementation 'org.eclipse.jgit:org.eclipse.jgit:6.8.0.202311291450-r'
+
+    implementation project(':model')
+    implementation project(':source')
+    implementation project(':utils')
+    implementation project(':data')
 }

processor/src/main/java/one/nem/lacerta/processor/DocumentProcessor.java

@@ -0,0 +1,24 @@
+package one.nem.lacerta.processor;
+
+import android.graphics.Bitmap;
+
+public interface DocumentProcessor {
+
+    // ページ操作
+    void addNewPageToLast(Bitmap bitmap) throws Exception;
+    void addNewPagesToLast(Bitmap[] bitmaps) throws Exception;
+    void addNewPageAfterIndex(Bitmap bitmap, int index) throws Exception;
+    void addNewPageBeforeIndex(Bitmap bitmap, int index) throws Exception;
+    void removePageAtIndex(int index) throws Exception;
+
+    // 更新
+    void updatePageAtIndex(Bitmap bitmap, int index);
+
+    // ページ取得
+    Bitmap getPageAtIndex(int index);
+    int getPageCount();
+
+    void close() throws Exception;
+    void init() throws Exception; // TODO-rca: 例外処理
+
+}

processor/src/main/java/one/nem/lacerta/processor/factory/DocumentProcessorFactory.java

@@ -0,0 +1,10 @@
+package one.nem.lacerta.processor.factory;
+
+import dagger.assisted.AssistedFactory;
+import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.processor.impl.DocumentProcessorImpl;
+
+@AssistedFactory
+public interface DocumentProcessorFactory {
+    DocumentProcessorImpl create(DocumentDetail documentDetail);
+}

processor/src/main/java/one/nem/lacerta/processor/impl/DocumentProcessorImpl.java

@@ -0,0 +1,175 @@
+package one.nem.lacerta.processor.impl;
+
+import android.graphics.Bitmap;
+
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.UUID;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedInject;
+import one.nem.lacerta.model.document.internal.XmlMetaPageModel;
+import one.nem.lacerta.processor.DocumentProcessor;
+
+import one.nem.lacerta.model.document.DocumentDetail;
+
+import one.nem.lacerta.model.document.internal.XmlMetaModel;
+import one.nem.lacerta.source.file.FileManager;
+import one.nem.lacerta.source.file.factory.FileManagerFactory;
+
+import one.nem.lacerta.utils.LacertaLogger;
+
+import one.nem.lacerta.utils.XmlMetaParser;
+
+
+public class DocumentProcessorImpl implements DocumentProcessor{
+
+    // Magic Numbers
+    private static final String DEFAULT_SAVE_DIR = "raw";
+
+    // Variables
+    private final DocumentDetail documentDetail;
+    private XmlMetaModel xmlMetaModel;
+    private Path documentRootPath;
+    private FileManager fileManager;
+
+    // Injection
+    private final FileManagerFactory fileManagerFactory;
+    private final LacertaLogger logger;
+    private final XmlMetaParser xmlMetaParser;
+    @AssistedInject
+    public DocumentProcessorImpl(FileManagerFactory fileManagerFactory, LacertaLogger logger, XmlMetaParser xmlMetaParser, @Assisted DocumentDetail documentDetail) {
+        this.fileManagerFactory = fileManagerFactory;
+        this.logger = logger;
+        this.xmlMetaParser = xmlMetaParser;
+        if (documentDetail == null) {
+            throw new IllegalArgumentException("documentDetail must not be null");
+        }
+        this.documentDetail = documentDetail;
+    }
+
+    @Override
+    public void init() throws Exception{
+        logger.debug("init", "called");
+        // Init Variables
+        this.documentRootPath = this.documentDetail.getPath().getFullPath();
+        logger.debug("init", "documentRootPath: " + this.documentRootPath);
+
+        this.fileManager = fileManagerFactory.create(this.documentRootPath).enableAutoCreateParent(); //Initialize FileManager
+
+        FileManager initFileManager = this.fileManager.getNewInstance();
+
+        logger.debug("init", "fileManager created");
+
+        // xmlファイルの読み込み
+        if (initFileManager.isExist("meta.xml")) {
+            logger.debug("init", "meta.xml found");
+            try {
+                this.xmlMetaModel = xmlMetaParser.deserialize(this.fileManager.loadXml("meta.xml"));
+                logger.debug("init", "meta.xml parsed");
+            } catch (Exception e) {
+                logger.debug("init", "meta.xml parse failed");
+                logger.trace("init", e.getMessage());
+            }
+        } else {
+            logger.debug("init", "meta.xml not found");
+            xmlMetaModel = new XmlMetaModel();
+
+            xmlMetaModel.setTitle(this.documentDetail.getMeta().getTitle());
+            xmlMetaModel.setAuthor(this.documentDetail.getAuthor());
+            xmlMetaModel.setDescription(""); // FIXME-rca:
+            xmlMetaModel.setDefaultBranch(this.documentDetail.getDefaultBranch());
+            xmlMetaModel.setPages(new ArrayList<>());
+
+            try {
+                initFileManager.createFileIfNotExist("meta.xml").saveXml(xmlMetaParser.serialize(xmlMetaModel), "meta.xml");
+                logger.debug("init", "meta.xml saved");
+            } catch (Exception e) {
+                logger.error("init", "meta.xml save failed");
+                logger.trace("init", e.getMessage());
+            }
+        }
+
+        logger.info("init", "finished");
+    }
+
+    @Override
+    public void addNewPageToLast(Bitmap bitmap) throws Exception{
+        logger.debug("addNewPageToLast", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
+
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaModel.getPages().add(xmlMetaPageModel);
+
+        logger.info("addNewPageToLast", "finished");
+        logger.info("addNewPageToLast", "filename: " + filename);
+    }
+
+    @Override
+    public void addNewPagesToLast(Bitmap[] bitmaps) throws Exception{
+        logger.debug("addNewPagesToLast", "called");
+
+        for (Bitmap bitmap : bitmaps) {
+            addNewPageToLast(bitmap);
+        } // TODO-rca: 効率悪いので改善する
+    }
+
+    @Override
+    public void addNewPageAfterIndex(Bitmap bitmap, int index) throws Exception {
+        logger.debug("addNewPageAfterIndex", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
+
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaModel.getPages().add(index, xmlMetaPageModel);
+    }
+
+    @Override
+    public void addNewPageBeforeIndex(Bitmap bitmap, int index) throws Exception {
+        logger.debug("addNewPageBeforeIndex", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
+
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaModel.getPages().add(index - 1, xmlMetaPageModel);
+    }
+
+    @Override
+    public void removePageAtIndex(int index) {
+
+    }
+
+    @Override
+    public void updatePageAtIndex(Bitmap bitmap, int index) {
+
+    }
+
+    @Override
+    public Bitmap getPageAtIndex(int index) {
+        return null;
+    }
+
+    @Override
+    public int getPageCount() {
+        return 0;
+    }
+
+    @Override
+    public void close() throws Exception{
+        logger.debug("close", "called");
+        try {
+            this.fileManager.getNewInstance().createFileIfNotExist("meta.xml").saveXml(xmlMetaParser.serialize(xmlMetaModel), "meta.xml");
+            logger.debug("close", "meta.xml saved");
+        } catch (Exception e) {
+            logger.error("close", "meta.xml save failed");
+            logger.trace("close", e.getMessage());
+        }
+    }
+}

processor/src/main/java/one/nem/lacerta/processor/module/DocumentProcessorModule.java

@@ -0,0 +1,16 @@
+package one.nem.lacerta.processor.module;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedInject;
+import one.nem.lacerta.model.document.DocumentDetail;
+
+public class DocumentProcessorModule {
+
+    private final DocumentDetail documentDetail;
+
+    @AssistedInject
+    public DocumentProcessorModule(@Assisted DocumentDetail documentDetail) {
+        this.documentDetail = documentDetail;
+    }
+
+}

processor/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
+</resources>

source/src/main/java/one/nem/lacerta/source/file/FileManager.java

@@ -0,0 +1,65 @@
+package one.nem.lacerta.source.file;
+
+import android.graphics.Bitmap;
+
+import org.w3c.dom.Document;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.nio.file.Path;
+import java.util.List;
+
+
+/** @noinspection unused*/
+public interface FileManager {
+
+    File getFileRef();
+    boolean isExist(String name) throws IOException;
+    boolean isExist();
+    boolean isDirectory();
+    boolean isFile();
+    boolean isWritable();
+    boolean isReadable();
+    // Get current instance
+    FileManager getCurrentInstance();
+    FileManager getNewInstance();
+
+    // Configure
+    FileManager enableAutoCreateParent();
+    FileManager disableRootDirCheck();
+
+    FileManager setRootDir(Path rootDir);
+    FileManager setPath(Path path);
+    FileManager resolve(String path) throws IOException;
+
+    // Create
+    FileManager createFile() throws IOException;
+    FileManager createFile(String fileName) throws IOException;
+    FileManager createFileIfNotExist() throws IOException;
+    FileManager createFileIfNotExist(String fileName) throws IOException;
+    FileManager createDirectory() throws IOException;
+    FileManager createDirectory(String directoryName) throws IOException;
+    FileManager createDirectoryIfNotExist() throws IOException;
+    FileManager createDirectoryIfNotExist(String directoryName) throws IOException;
+
+    // Save
+    // XML
+    void saveXml(Document document, String fileName) throws IOException;
+    void saveXml(Document document) throws IOException;
+
+    // Bitmap
+    void saveBitmap(Bitmap bitmap, String fileName) throws IOException; // TODO-rca: パラメータに対応させる
+    void saveBitmap(Bitmap bitmap) throws IOException; // TODO-rca: パラメータに対応させる
+
+
+    // Load
+    // XML
+    Document loadXml(String fileName) throws IOException;
+    Document loadXml() throws IOException;
+
+    // Bitmap
+    Bitmap loadBitmap(String fileName) throws IOException;
+    Bitmap loadBitmap() throws IOException;
+
+}

source/src/main/java/one/nem/lacerta/source/file/factory/FileManagerFactory.java

@@ -0,0 +1,11 @@
+package one.nem.lacerta.source.file.factory;
+
+import java.nio.file.Path;
+
+import dagger.assisted.AssistedFactory;
+import one.nem.lacerta.source.file.impl.FileManagerImpl;
+
+@AssistedFactory
+public interface FileManagerFactory {
+    FileManagerImpl create(Path rootDir);
+}

source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java

@@ -0,0 +1,364 @@
+package one.nem.lacerta.source.file.impl;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+
+import org.w3c.dom.Document;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedInject;
+import one.nem.lacerta.source.file.FileManager;
+
+import one.nem.lacerta.utils.LacertaLogger;
+
+public class FileManagerImpl implements FileManager {
+
+    // variables
+    private Path rootDir;
+    private Path path;
+    private boolean autoCreateParent = false;
+    private boolean disableRootDirCheck = false;
+
+
+    // Injection
+    private final LacertaLogger logger;
+    @AssistedInject
+    public FileManagerImpl(LacertaLogger logger, @Assisted Path rootDir) {
+        this.logger = logger;
+        this.rootDir = rootDir;
+    }
+
+    // for generate new instance
+    public FileManagerImpl(LacertaLogger logger, Path rootDir, Path path, boolean autoCreateParent, boolean disableRootDirCheck) {
+        this.logger = logger;
+        this.rootDir = rootDir;
+        this.path = path;
+        this.autoCreateParent = autoCreateParent;
+        this.disableRootDirCheck = disableRootDirCheck;
+    }
+
+    // Internal
+    private Path resolveStringPath(String path) throws IOException{
+        String[] pathArray = path.split("/");
+        Path resolvedPath = this.path;
+        for (String pathPart : pathArray) {
+            if (pathPart.equals("..")) {
+                resolvedPath = resolvedPath.getParent();
+                continue;
+            }
+
+            try {
+                resolvedPath = resolvedPath.resolve(pathPart);
+            } catch (Exception e) {
+                throw new IOException("Invalid path: " + path);
+            }
+        }
+        logger.debug("resolveStringPath", "resolvedPath: " + resolvedPath);
+        return resolvedPath;
+    }
+
+    private FileManager newInstance(Path rootDir, Path path, boolean autoCreateParent, boolean disableRootDirCheck) {
+        logger.debug("newInstance", "Generating new instance");
+        logger.debug("newInstance", "Path: " + path);
+        return new FileManagerImpl(this.logger, rootDir, path, autoCreateParent, disableRootDirCheck);
+    }
+
+    @Override
+    public File getFileRef() {
+        if (this.isExist()) {
+            return this.path.toFile();
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public boolean isExist(String name) throws IOException {
+        Path resolvedPath = this.resolveStringPath(name);
+        return Files.exists(resolvedPath);
+    }
+
+    @Override
+    public boolean isExist(){
+        return Files.exists(this.path);
+    }
+
+    @Override
+    public boolean isDirectory() {
+        if (this.isExist()) {
+            File file = this.path.toFile();
+            return file.isDirectory();
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public boolean isFile() {
+        if (this.isExist()) {
+            File file = this.path.toFile();
+            return file.isFile();
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public boolean isReadable() {
+        if (this.isExist()) {
+            File file = this.path.toFile();
+            return file.canRead();
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public boolean isWritable() {
+        if (this.isExist()) {
+            File file = this.path.toFile();
+            return file.canWrite();
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public FileManager getCurrentInstance() {
+        return this;
+    }
+
+    @Override
+    public FileManager getNewInstance() {
+        return this.newInstance(this.rootDir, this.rootDir, this.autoCreateParent, this.disableRootDirCheck);
+    }
+
+    @Override
+    public FileManager enableAutoCreateParent() {
+        this.autoCreateParent = true;
+        return this;
+    }
+
+    @Override
+    public FileManager disableRootDirCheck() {
+        this.disableRootDirCheck = true;
+        return this;
+    }
+
+    @Override
+    public FileManager setRootDir(Path rootDir) {
+        return this.newInstance(rootDir, this.path, this.autoCreateParent, this.disableRootDirCheck);
+    }
+
+    @Override
+    public FileManager setPath(Path path) {
+        Path resolvedPath;
+        if (this.disableRootDirCheck) {
+            resolvedPath = path;
+        } else {
+            if (path.startsWith(this.rootDir)) {
+                resolvedPath = path;
+            } else {
+                throw new IllegalArgumentException("path must be in rootDir");
+            }
+        }
+        logger.debug("setPath", "resolvedPath: " + resolvedPath);
+        return this.newInstance(this.rootDir, resolvedPath, this.autoCreateParent, this.disableRootDirCheck);
+    }
+
+    @Override
+    public FileManager resolve(String path) throws IOException{
+        Path resolvedPath;
+        try {
+            resolvedPath = resolveStringPath(path);
+        } catch (IOException e) {
+            logger.error("resolve", e.getMessage());
+            throw new IOException("Invalid path: " + path);
+        }
+        return this.setPath(resolvedPath);
+    }
+
+    // Internal
+    private void createFileInternal(Path path) throws IOException {
+        try {
+            if (this.autoCreateParent) {
+                if (!path.getParent().toFile().exists()) {
+                    Files.createDirectories(path.getParent());
+                }
+            }
+            Files.createFile(path);
+        } catch (Exception e) {
+            logger.error("createFileInternal", e.getMessage());
+            throw new IOException("Failed to create file");
+        }
+    }
+
+    @Override
+    public FileManager createFile() throws IOException {
+        this.createFileInternal(this.path);
+        return this;
+    }
+
+    @Override
+    public FileManager createFile(String fileName) throws IOException { // pathが書き換わってしまうのは想像できない挙動かも？
+        this.createFileInternal(this.resolveStringPath(fileName));
+        return this;
+    }
+
+    @Override
+    public FileManager createFileIfNotExist() throws IOException {
+        if (!this.isExist()) {
+            this.createFile();
+        }
+        return this;
+    }
+
+    @Override
+    public FileManager createFileIfNotExist(String fileName) throws IOException {
+        if (!this.isExist(fileName)) {
+            this.createFile(fileName);
+        }
+        return this;
+    }
+
+    // Internal
+    private void createDirectoryInternal(Path path) throws IOException {
+        try {
+            if (this.autoCreateParent) {
+                if (!path.getParent().toFile().exists()) {
+                    Files.createDirectories(path.getParent());
+                }
+            }
+            Files.createDirectory(path);
+        } catch (Exception e) {
+            logger.error("createDirectoryInternal", e.getMessage());
+            throw new IOException("Failed to create directory");
+        }
+    }
+
+    @Override
+    public FileManager createDirectory() throws IOException {
+        this.createDirectoryInternal(this.path);
+        return this;
+    }
+
+    @Override
+    public FileManager createDirectory(String directoryName) throws IOException {
+        this.createDirectoryInternal(this.resolveStringPath(directoryName));
+        return this;
+    }
+
+    @Override
+    public FileManager createDirectoryIfNotExist() throws IOException {
+        if (!this.isExist()) {
+            this.createDirectory();
+        }
+        return this;
+    }
+
+    @Override
+    public FileManager createDirectoryIfNotExist(String directoryName) throws IOException {
+        if (!this.isExist(directoryName)) {
+            this.createDirectory(directoryName);
+        }
+        return this;
+    }
+
+    // Internal
+    private void saveXmlInternal(Document document, Path path) throws IOException {
+        try {
+            TransformerFactory transformerFactory = TransformerFactory.newInstance();
+            Transformer transformer = transformerFactory.newTransformer();
+            DOMSource source = new DOMSource(document);
+
+            StreamResult result = new StreamResult(path.toFile());
+
+            transformer.transform(source, result);
+        } catch (Exception e) {
+            logger.error("saveXmlInternal", e.getMessage());
+            e.printStackTrace();
+            throw new IOException("Failed to save xml");
+        }
+    }
+    private void saveBitmapInternal(Bitmap bitmap, Path path) throws IOException {
+        try {
+            logger.debug("saveBitmapInternal", "path: " + path);
+            bitmap.compress(Bitmap.CompressFormat.PNG, 100, Files.newOutputStream(path));
+        } catch (Exception e) {
+            logger.error("saveBitmapInternal", e.getMessage());
+            throw new IOException("Failed to save bitmap");
+        }
+    }
+
+    @Override
+    public void saveXml(Document document, String fileName) throws IOException {
+        this.saveXmlInternal(document, this.resolveStringPath(fileName));
+    }
+
+    @Override
+    public void saveXml(Document document) throws IOException {
+        this.saveXmlInternal(document, this.path);
+    }
+
+    @Override
+    public void saveBitmap(Bitmap bitmap, String fileName) throws IOException {
+        this.saveBitmapInternal(bitmap, this.resolveStringPath(fileName));
+    }
+
+    @Override
+    public void saveBitmap(Bitmap bitmap) throws IOException {
+        this.saveBitmapInternal(bitmap, this.path);
+    }
+
+    // Internal
+    private Document loadXmlInternal(Path path) throws IOException {
+        try {
+            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder builder = factory.newDocumentBuilder();
+            return builder.parse(Files.newInputStream(path));
+        } catch (Exception e) {
+            logger.error("loadXmlInternal", e.getMessage());
+            throw new IOException("Failed to load xml");
+        }
+    }
+    private Bitmap loadBitmapInternal(Path path) throws IOException {
+        try {
+            return BitmapFactory.decodeFile(path.toString());
+        } catch (Exception e) {
+            logger.error("loadBitmapInternal", e.getMessage());
+            throw new IOException("Failed to load bitmap");
+        }
+    }
+
+    @Override
+    public Document loadXml(String fileName) throws IOException {
+        return this.loadXmlInternal(this.resolveStringPath(fileName));
+    }
+
+    @Override
+    public Document loadXml() throws IOException {
+        return this.loadXmlInternal(this.path);
+    }
+
+    @Override
+    public Bitmap loadBitmap(String fileName) throws IOException {
+        return this.loadBitmapInternal(this.resolveStringPath(fileName));
+    }
+
+    @Override
+    public Bitmap loadBitmap() throws IOException {
+        return this.loadBitmapInternal(this.path);
+    }
+}

source/src/main/java/one/nem/lacerta/source/file/module/FileManagerModule.java

@@ -0,0 +1,20 @@
+package one.nem.lacerta.source.file.module;
+
+import java.nio.file.Path;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedInject;
+
+public class FileManagerModule {
+
+    private final Path rootDir;
+
+    @AssistedInject
+    public FileManagerModule(@Assisted Path rootDir) {
+        this.rootDir = rootDir;
+    }
+
+    public Path getRootDir() {
+        return rootDir;
+    }
+}

utils/build.gradle

@@ -37,5 +37,6 @@ dependencies {
     implementation libs.com.google.dagger.hilt.android
     annotationProcessor libs.com.google.dagger.hilt.compiler
 
-    //
+    // model
+    implementation project(':model')
 }

utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java

@@ -1,5 +1,7 @@
 package one.nem.lacerta.utils;
 
+import one.nem.lacerta.utils.model.KeyValueLog;
+
 public interface LacertaLogger {
 
     void info(String tag, String message);
@@ -9,4 +11,7 @@ public interface LacertaLogger {
     void trace(String tag, String message);
     void fatal(String tag, String message);
 
+    String buildKVMessage(KeyValueLog... logs);
+    // With name
+    String buildKVMessage(String name, KeyValueLog... logs);
 }

utils/src/main/java/one/nem/lacerta/utils/XmlMetaParser.java

@@ -0,0 +1,13 @@
+package one.nem.lacerta.utils;
+
+import org.w3c.dom.Document;
+
+import one.nem.lacerta.model.document.internal.XmlMetaModel;
+
+public interface XmlMetaParser {
+
+    XmlMetaModel deserialize(Document document);
+
+    Document serialize(XmlMetaModel meta);
+
+}

utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java

@@ -5,6 +5,8 @@ import android.util.Log;
 import javax.inject.Inject;
 
 import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.utils.model.KeyValueLog;
+
 public class LacertaLoggerImpl implements LacertaLogger{
 
     @Inject
@@ -40,4 +42,30 @@ public class LacertaLoggerImpl implements LacertaLogger{
     public void fatal(String tag, String message) {
         Log.wtf(tag, message);
     }
+
+    @Override
+    public String buildKVMessage(KeyValueLog... logs) {
+        StringBuilder builder = new StringBuilder();
+        for (KeyValueLog log : logs) {
+            builder.append(log.getKey());
+            builder.append(": ");
+            builder.append(log.getValue());
+            builder.append("\n");
+        }
+        return builder.toString();
+    }
+
+    @Override
+    public String buildKVMessage(String name, KeyValueLog... logs) {
+        StringBuilder builder = new StringBuilder();
+        builder.append(name);
+        builder.append("\n");
+        for (KeyValueLog log : logs) {
+            builder.append(log.getKey());
+            builder.append(": ");
+            builder.append(log.getValue());
+            builder.append("\n");
+        }
+        return builder.toString();
+    }
 }

utils/src/main/java/one/nem/lacerta/utils/impl/XmlMetaParserImpl.java

@@ -0,0 +1,96 @@
+package one.nem.lacerta.utils.impl;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import java.util.ArrayList;
+
+import javax.inject.Inject;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+
+import one.nem.lacerta.model.document.internal.XmlMetaModel;
+import one.nem.lacerta.model.document.internal.XmlMetaPageModel;
+import one.nem.lacerta.utils.XmlMetaParser;
+
+import one.nem.lacerta.utils.LacertaLogger;
+
+public class XmlMetaParserImpl implements XmlMetaParser{
+
+    @Inject
+    LacertaLogger logger;
+
+    @Inject
+    public XmlMetaParserImpl() {
+    }
+
+    @Override
+    public XmlMetaModel deserialize(Document document) {
+        logger.debug("deserialize", "called");
+        try {
+            Element rootElement = document.getDocumentElement();
+
+            XmlMetaModel meta = new XmlMetaModel();
+
+            meta.setTitle(rootElement.getElementsByTagName("title").item(0).getTextContent());
+            meta.setAuthor(rootElement.getElementsByTagName("author").item(0).getTextContent());
+            meta.setDescription(rootElement.getElementsByTagName("description").item(0).getTextContent());
+            meta.setDefaultBranch(rootElement.getElementsByTagName("defaultBranch").item(0).getTextContent());
+
+            ArrayList<XmlMetaPageModel> pages = new ArrayList<>();
+            for(int i = 0; i < rootElement.getElementsByTagName("pages").getLength(); i++) {
+                Element pageElement = (Element) rootElement.getElementsByTagName("page").item(i);
+                XmlMetaPageModel page = new XmlMetaPageModel();
+                page.setFilename(pageElement.getElementsByTagName("filename").item(0).getTextContent());
+                pages.add(page);
+            }
+
+            meta.setPages(pages);
+
+            return meta;
+        } catch (Exception e) {
+            logger.error("deserialize", "something wrong");
+            logger.trace("deserialize", e.getMessage());
+        }
+        return null;
+    }
+    @Override
+    public Document serialize(XmlMetaModel meta) {
+        logger.debug("serialize", "called");
+        try {
+            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder builder = factory.newDocumentBuilder();
+            Document document = builder.newDocument();
+
+            Element rootElement = document.createElement("meta");
+
+            appendElement(document, rootElement, "title", meta.getTitle());
+            appendElement(document, rootElement, "author", meta.getAuthor());
+            appendElement(document, rootElement, "description", meta.getDescription());
+            appendElement(document, rootElement, "defaultBranch", meta.getDefaultBranch());
+
+            Element pagesElement = document.createElement("pages");
+            for(XmlMetaPageModel page : meta.getPages()) {
+                Element pageElement = document.createElement("page");
+                appendElement(document, pageElement, "filename", page.getFilename());
+                pagesElement.appendChild(pageElement);
+            }
+
+            rootElement.appendChild(pagesElement);
+
+            document.appendChild(rootElement);
+
+            return document;
+        } catch (Exception e) {
+            logger.error("serialize", "something wrong");
+            logger.trace("serialize", e.getMessage());
+        }
+        return null;
+    }
+    // Internal Methods
+    private void appendElement(Document document, Element rootElement, String name, String textContent) {
+        Element element = document.createElement(name);
+        element.setTextContent(textContent);
+        rootElement.appendChild(element);
+    }
+}

utils/src/main/java/one/nem/lacerta/utils/model/KeyValueLog.java

@@ -0,0 +1,31 @@
+package one.nem.lacerta.utils.model;
+
+public class KeyValueLog {
+
+    String key;
+    String value;
+
+    public KeyValueLog(String key, String value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    // Getter
+    public String getKey() {
+        return key;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    // Setter
+    public void setKey(String key) {
+        this.key = key;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+}

utils/src/main/java/one/nem/lacerta/utils/module/XmlMetaParserModule.java

@@ -0,0 +1,17 @@
+package one.nem.lacerta.utils.module;
+
+
+import dagger.Binds;
+import dagger.Module;
+import dagger.hilt.InstallIn;
+import dagger.hilt.components.SingletonComponent;
+
+import one.nem.lacerta.utils.XmlMetaParser;
+import one.nem.lacerta.utils.impl.XmlMetaParserImpl;
+@Module
+@InstallIn(SingletonComponent.class)
+abstract public class XmlMetaParserModule {
+
+    @Binds
+    public abstract XmlMetaParser bindXmlMetaParser(XmlMetaParserImpl impl);
+}