Merge pull request #114 from lacerta-doc/vcs_move_rev

リビジョンを遡れるように

component/viewer/src/main/java/one/nem/lacerta/component/viewer/RevAdapter.java

@@ -12,6 +12,7 @@ import java.text.SimpleDateFormat;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 
+import one.nem.lacerta.component.viewer.model.RevSelectListener;
 import one.nem.lacerta.model.VcsRevModel;
 import one.nem.lacerta.utils.FeatureSwitch;
 
@@ -19,11 +20,14 @@ public class RevAdapter extends RecyclerView.Adapter<RevAdapter.RevViewHolder>{
 
     private ArrayList<VcsRevModel> revModels;
 
+    private RevSelectListener revSelectListener;
+
     public RevAdapter(ArrayList<VcsRevModel> revModels) {
         this.revModels = revModels;
     }
 
-    public RevAdapter() {
+    public RevAdapter(RevSelectListener revSelectListener) {
+        this.revSelectListener = revSelectListener;
     }
 
     public void setRevModels(ArrayList<VcsRevModel> revModels) {
@@ -52,6 +56,13 @@ public class RevAdapter extends RecyclerView.Adapter<RevAdapter.RevViewHolder>{
         }
         holder.revId.setText("RevID: " + revModel.getId());
 
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                revSelectListener.onRevSelect(revModel.getId());
+            }
+        });
+
     }
 
     @Override

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerListFragment.java

@@ -1,12 +1,10 @@
 package one.nem.lacerta.component.viewer;
 
 import android.app.AlertDialog;
-import android.graphics.Bitmap;
 import android.os.Bundle;
 
 import androidx.appcompat.widget.Toolbar;
 import androidx.fragment.app.Fragment;
-import androidx.navigation.Navigation;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
@@ -16,24 +14,24 @@ import android.view.ViewGroup;
 import android.widget.Toast;
 
 import java.util.ArrayList;
-import java.util.concurrent.CompletableFuture;
 
 import javax.inject.Inject;
 
 import dagger.hilt.android.AndroidEntryPoint;
 import one.nem.lacerta.data.Document;
-import one.nem.lacerta.model.document.DocumentDetail;
 import one.nem.lacerta.model.document.page.Page;
 import one.nem.lacerta.utils.FeatureSwitch;
 import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.vcs.LacertaVcs;
+import one.nem.lacerta.vcs.factory.LacertaVcsFactory;
 
 /**
  * A simple {@link Fragment} subclass.
- * Use the {@link ComponentViewerTopFragment#newInstance} factory method to
+ * Use the {@link ViewerListFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
 @AndroidEntryPoint
-public class ComponentViewerTopFragment extends Fragment {
+public class ViewerListFragment extends Fragment {
 
     @Inject
     Document document;
@@ -41,17 +39,21 @@ public class ComponentViewerTopFragment extends Fragment {
     @Inject
     LacertaLogger logger;
 
+    @Inject
+    LacertaVcsFactory lacertaVcsFactory;
+
     private static final String TAG = "ComponentViewerTopFragment";
 
     private String documentId;
     private String documentName;
+    private String revisionId;
 
-    public ComponentViewerTopFragment() {
+    public ViewerListFragment() {
         // Required empty public constructor
     }
 
-    public static ComponentViewerTopFragment newInstance(String documentId, String documentName) {
+    public static ViewerListFragment newInstance(String documentId, String documentName) {
-        ComponentViewerTopFragment fragment = new ComponentViewerTopFragment();
+        ViewerListFragment fragment = new ViewerListFragment();
         Bundle args = new Bundle();
         args.putString("documentId", documentId);
         args.putString("documentName", documentName);
@@ -59,12 +61,23 @@ public class ComponentViewerTopFragment extends Fragment {
         return fragment;
     }
 
+    public static ViewerListFragment newInstance(String documentId, String documentName, String revisionId) {
+        ViewerListFragment fragment = new ViewerListFragment();
+        Bundle args = new Bundle();
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        args.putString("revisionId", revisionId);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         if (getArguments() != null) {
             documentId = getArguments().getString("documentId");
             documentName = getArguments().getString("documentName");
+            revisionId = getArguments().getString("revisionId");
         }
     }
 
@@ -85,6 +98,8 @@ public class ComponentViewerTopFragment extends Fragment {
         });
         recyclerView.setAdapter(viewerBodyAdapter);
 
+        if (revisionId == null) {
+            logger.debug(TAG, "revisionId is empty, loading latest revision");
             if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.VISIBLE);
             document.getDocument(documentId).thenAccept(documentDetail -> {
                 ArrayList<Page> pages = documentDetail.getPages();
@@ -95,6 +110,22 @@ public class ComponentViewerTopFragment extends Fragment {
                     if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.GONE);
                 });
             });
+        } else {
+            logger.debug(TAG, "revisionId: " + revisionId);
+            if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.VISIBLE);
+            LacertaVcs lacertaVcs = lacertaVcsFactory.create(documentId);
+            lacertaVcs.getDocumentPagePathListRev(revisionId).thenAccept(documentPathList -> {
+                logger.debug(TAG, "documentPathList.size(): " + documentPathList.size());
+                document.getDocumentPageListByFileNameList(documentId, documentPathList).thenAccept(pages -> {
+                    logger.debug(TAG, "pages.size(): " + pages.size());
+                    viewerBodyAdapter.setPages(pages);
+                    getActivity().runOnUiThread(() -> {
+                        viewerBodyAdapter.notifyItemRangeChanged(0, pages.size());
+                        if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.GONE);
+                    });
+                });
+            });
+        }
 
         return view;
     }
@@ -123,7 +154,7 @@ public class ComponentViewerTopFragment extends Fragment {
                 if (item.getItemId() == R.id.action_open_vcs_rev_list) {
                     // Open vcs rev list
                     getParentFragmentManager().beginTransaction()
-                            .replace(R.id.nav_host_fragment, ViewerVcsRevListFragment.newInstance(documentId))
+                            .replace(R.id.nav_host_fragment, ViewerVcsRevListFragment.newInstance(documentId, documentName))
                             .commit();
                     return true;
                 } else if (item.getItemId() == R.id.action_rename) {

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerMainActivity.java

@@ -2,7 +2,6 @@ package one.nem.lacerta.component.viewer;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.util.Log;
 import android.widget.Toast;
 
 import androidx.activity.EdgeToEdge;
@@ -10,12 +9,6 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
-import androidx.fragment.app.FragmentManager;
-import androidx.navigation.NavController;
-import androidx.navigation.fragment.NavHostFragment;
-import androidx.navigation.ui.NavigationUI;
-
-import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 import javax.inject.Inject;
 
@@ -62,7 +55,7 @@ public class ViewerMainActivity extends AppCompatActivity {
 
         // Navigation
         getSupportFragmentManager().beginTransaction()
-                .replace(R.id.nav_host_fragment, ComponentViewerTopFragment.newInstance(documentId, documentName))
+                .replace(R.id.nav_host_fragment, ViewerListFragment.newInstance(documentId, documentName))
                 .commit();
     }
 }

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerVcsRevListFragment.java

@@ -34,15 +34,17 @@ public class ViewerVcsRevListFragment extends Fragment {
     LacertaVcs lacertaVcs;
 
     private String documentId;
+    private String documentName;
 
     public ViewerVcsRevListFragment() {
         // Required empty public constructor
     }
 
-    public static ViewerVcsRevListFragment newInstance(String documentId) {
+    public static ViewerVcsRevListFragment newInstance(String documentId, String documentName) {
         ViewerVcsRevListFragment fragment = new ViewerVcsRevListFragment();
         Bundle args = new Bundle();
         args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
         fragment.setArguments(args);
         return fragment;
     }
@@ -66,17 +68,22 @@ public class ViewerVcsRevListFragment extends Fragment {
         // Init arg
         if (getArguments() != null) {
             this.documentId = getArguments().getString("documentId");
-            logger.debug("ViewerVcsRevListFragment", "documentId: " + documentId);
+            logger.debug("ViewerVcsRevListFragment", "documentId: " + this.documentId);
         }
 
         // Init vcs
-        lacertaVcs = lacertaVcsFactory.create(documentId);
+        lacertaVcs = lacertaVcsFactory.create(this.documentId);
 
         // Init view
         RecyclerView recyclerView = view.findViewById(R.id.rev_list);
 
         // Init adapter
-        RevAdapter revAdapter = new RevAdapter();
+        RevAdapter revAdapter = new RevAdapter(revisionId -> {
+            logger.debug("ViewerVcsRevListFragment", "Selected revisionId: " + revisionId);
+            getParentFragmentManager().beginTransaction()
+                    .replace(R.id.nav_host_fragment, ViewerListFragment.newInstance(this.documentId, this.documentName, revisionId))
+                    .commit();
+        });
 
         // Set adapter
         recyclerView.setAdapter(revAdapter);

component/viewer/src/main/java/one/nem/lacerta/component/viewer/model/RevSelectListener.java

@@ -0,0 +1,5 @@
+package one.nem.lacerta.component.viewer.model;
+
+public interface RevSelectListener {
+    void onRevSelect(String revisionId);
+}

component/viewer/src/main/res/layout/activity_viewer_main.xml

@@ -9,7 +9,7 @@
 
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/nav_host_fragment"
-        android:name="one.nem.lacerta.component.viewer.ComponentViewerTopFragment"
+        android:name="one.nem.lacerta.component.viewer.ViewerListFragment"
         android:layout_width="0dp"
         android:layout_height="0dp"
         app:defaultNavHost="true"

component/viewer/src/main/res/navigation/component_viewer_navigation.xml

@@ -3,11 +3,11 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/component_viewer_navigation"
-    app:startDestination="@id/componentViewerTopFragment">
+    app:startDestination="@id/viewerListFragment">
 
     <fragment
-        android:id="@+id/componentViewerTopFragment"
+        android:id="@+id/viewerListFragment"
-        android:name="one.nem.lacerta.component.viewer.ComponentViewerTopFragment"
+        android:name="one.nem.lacerta.component.viewer.ViewerListFragment"
         android:label="ComponentViewerTopFragment" >
         <action
             android:id="@+id/action_componentViewerTopFragment_to_viewerVcsRevListFragment"

data/src/main/java/one/nem/lacerta/data/Document.java

@@ -6,6 +6,7 @@ import java.util.concurrent.CompletableFuture;
 
 import one.nem.lacerta.model.document.DocumentMeta;
 import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.model.document.page.Page;
 import one.nem.lacerta.model.document.path.DocumentPath;
 import one.nem.lacerta.model.document.tag.DocumentTag;
 
@@ -25,4 +26,6 @@ public interface Document {
     CompletableFuture<Void> updateDocument(DocumentDetail detail);
 
     CompletableFuture<DocumentDetail> getDocument(String documentId);
+
+    CompletableFuture<ArrayList<Page>> getDocumentPageListByFileNameList(String documentId, ArrayList<String> fileNameList);
 }

data/src/main/java/one/nem/lacerta/data/impl/DocumentImpl.java

@@ -173,6 +173,34 @@ public class DocumentImpl implements Document {
         });
     }
 
+    @Override
+    public CompletableFuture<ArrayList<Page>> getDocumentPageListByFileNameList(String documentId, ArrayList<String> fileNameList) {
+        return CompletableFuture.supplyAsync(() -> {
+            ArrayList<Page> pages = new ArrayList<>();
+            FileManager fileManager;
+            try {
+                fileManager = fileManagerFactory.create(deviceInfoUtils.getExternalStorageDirectory()).resolve(documentId).resolve("raw");
+            } catch (IOException e) {
+                logger.error(TAG, "FileManager resolve error");
+                logger.trace(TAG, e.getMessage());
+                logger.e_code("1210ae5b-dd2f-42ef-bc15-40b9a9bbdb16");
+                return null;
+            }
+
+            fileNameList.forEach(fileName -> {
+                try {
+                    pages.add(new Page(fileName, fileManager.loadBitmap(fileName)));
+                } catch (IOException e) {
+                    logger.error(TAG, "Bitmap decode error");
+                    logger.trace(TAG, e.getMessage());
+                    logger.e_code("6f9ba0dc-ac63-401c-8f50-a2bd9ff5cb91");
+                }
+            });
+
+            return pages;
+        });
+    }
+
     private CompletableFuture<ArrayList<XmlMetaPageModel>> getPagesByXmlMeta(String documentId) {
         return CompletableFuture.supplyAsync(() -> {
             FileManager fileManager = fileManagerFactory.create(deviceInfoUtils.getExternalStorageDirectory());

model/src/main/java/one/nem/lacerta/model/VcsLogModel.java

@@ -0,0 +1,64 @@
+package one.nem.lacerta.model;
+
+import java.util.Date;
+
+public class VcsLogModel {
+
+    String id;
+    String documentId;
+    String branchName;
+    String action;
+    Date createdAt;
+
+    public VcsLogModel(String id, String documentId, String branchName, String action, Date createdAt) {
+        this.id = id;
+        this.documentId = documentId;
+        this.branchName = branchName;
+        this.action = action;
+        this.createdAt = createdAt;
+    }
+
+    // Empty constructor
+    public VcsLogModel() {
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getDocumentId() {
+        return documentId;
+    }
+
+    public String getBranchName() {
+        return branchName;
+    }
+
+    public String getAction() {
+        return action;
+    }
+
+    public Date getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public void setDocumentId(String documentId) {
+        this.documentId = documentId;
+    }
+
+    public void setBranchName(String branchName) {
+        this.branchName = branchName;
+    }
+
+    public void setAction(String action) {
+        this.action = action;
+    }
+
+    public void setCreatedAt(Date createdAt) {
+        this.createdAt = createdAt;
+    }
+}

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

@@ -74,18 +74,24 @@ public class DocumentProcessorImpl implements DocumentProcessor{
         logger.debug("addNewPageToLast", "called");
         String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
 
+        lacertaVcs.insertPage(this.documentDetail.getPages().size(), filename);
+
+        try {
             Page page = new Page();
             page.setFileName(filename);
             page.setBitmap(bitmap);
             this.documentDetail.getPages().add(page);
 
-        lacertaVcs.insertPage(documentDetail.getPages().size(), filename);
-
             this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
 
             logger.info("addNewPageToLast", "finished");
             logger.info("addNewPageToLast", "filename: " + filename);
-
+        } catch (Exception e) {
+            logger.error("addNewPageToLast", "failed: Unknown error");
+            logger.e_code("d9191286-6092-40b3-80ed-9239106a8c65");
+            // Recover (Undo latest action)
+            lacertaVcs.undo();
+        }
         return this;
     }
 

source/src/main/java/one/nem/lacerta/source/database/LacertaDatabase.java

@@ -19,7 +19,7 @@ import one.nem.lacerta.source.database.dao.LibraryDao;
 import one.nem.lacerta.source.database.dao.VcsRevDao;
 import one.nem.lacerta.source.database.dao.VcsLogDao;
 
-@Database(entities = {TagEntity.class, DocumentEntity.class, LibraryEntity.class, VcsRevEntity.class, VcsLogEntity.class, FolderEntity.class}, version = 5)
+@Database(entities = {TagEntity.class, DocumentEntity.class, LibraryEntity.class, VcsRevEntity.class, VcsLogEntity.class, FolderEntity.class}, version = 4)
 public abstract class LacertaDatabase extends RoomDatabase {
     public abstract TagDao tagDao();
     public abstract DocumentDao documentDao();

source/src/main/java/one/nem/lacerta/source/database/dao/VcsLogDao.java

@@ -52,4 +52,11 @@ public interface VcsLogDao {
 
     @Update
     void updateAll(List<VcsLogEntity> vcsLogs);
+
+    // Delete
+    @Query("DELETE FROM vcs_log WHERE id = :id")
+    void deleteById(String id);
+
+    @Query("DELETE FROM vcs_log WHERE id = (SELECT id FROM vcs_log WHERE document_id = :documentId ORDER BY created_at DESC LIMIT 1)")
+    void deleteLatestByDocumentId(String documentId);
 }

source/src/main/java/one/nem/lacerta/source/database/dao/VcsRevDao.java

@@ -21,7 +21,7 @@ public interface VcsRevDao {
     @Query("SELECT * FROM vcs_rev WHERE id IN (:ids)")
     List<VcsRevEntity> findByIds(List<String> ids);
 
-    @Query("SELECT * FROM vcs_rev WHERE document_id = :documentId")
+    @Query("SELECT * FROM vcs_rev WHERE document_id = :documentId ORDER BY created_at ASC")
     List<VcsRevEntity> findByDocumentId(String documentId);
 
     @Query("SELECT * FROM vcs_rev WHERE document_id = :documentId ORDER BY created_at DESC LIMIT 1")

source/src/main/java/one/nem/lacerta/source/database/entity/VcsLogEntity.java

@@ -40,6 +40,12 @@ public class VcsLogEntity {
     @ColumnInfo(name = "created_at")
     public Date createdAt;
 
+    /**
+     * アクションタイプ
+     */
+    @ColumnInfo(name = "action_type")
+    public String actionType;
+
     /**
      * 発生アクション
      */

vcs/src/main/java/one/nem/lacerta/vcs/LacertaVcs.java

@@ -3,7 +3,9 @@ package one.nem.lacerta.vcs;
 import java.util.ArrayList;
 import java.util.concurrent.CompletableFuture;
 
+import one.nem.lacerta.model.VcsLogModel;
 import one.nem.lacerta.model.VcsRevModel;
+import one.nem.lacerta.model.document.DocumentDetail;
 
 public interface LacertaVcs {
 
@@ -14,12 +16,20 @@ public interface LacertaVcs {
 
     public void deletePage(int index);
 
+    public void undo();
+
     public void createDocument(String documentId);
 
     public void generateRevisionAtCurrent(String message);
 
     public CompletableFuture<ArrayList<VcsRevModel>> getRevisionHistory();
 
+    public CompletableFuture<ArrayList<VcsLogModel>> getLogHistory();
+
+    public CompletableFuture<ArrayList<VcsLogModel>> getLogHistoryInRev(String revId);
+
+    public CompletableFuture<ArrayList<String>> getDocumentPagePathListRev(String revId);
+
 
     // debug
     public void printLog();

vcs/src/main/java/one/nem/lacerta/vcs/impl/LacertaVcsImpl.java

@@ -1,15 +1,13 @@
 package one.nem.lacerta.vcs.impl;
 
-import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 
-import javax.inject.Inject;
-
 import dagger.assisted.Assisted;
 import dagger.assisted.AssistedInject;
+import one.nem.lacerta.model.VcsLogModel;
 import one.nem.lacerta.model.VcsRevModel;
 import one.nem.lacerta.source.database.LacertaDatabase;
 import one.nem.lacerta.source.database.entity.VcsLogEntity;
@@ -18,7 +16,9 @@ import one.nem.lacerta.utils.LacertaLogger;
 import one.nem.lacerta.vcs.ActionType;
 import one.nem.lacerta.vcs.LacertaVcs;
 import one.nem.lacerta.vcs.internal.JsonUtils;
+import one.nem.lacerta.vcs.model.action.DeletePage;
 import one.nem.lacerta.vcs.model.action.InsertPage;
+import one.nem.lacerta.vcs.model.action.UpdatePage;
 
 public class LacertaVcsImpl implements LacertaVcs {
 
@@ -57,6 +57,7 @@ public class LacertaVcsImpl implements LacertaVcs {
         vcsLogEntity.documentId = documentId;
         vcsLogEntity.branchName = "master";
         vcsLogEntity.createdAt = new java.util.Date();
+        vcsLogEntity.actionType = ActionType.INSERT_PAGE.getValue();
         vcsLogEntity.action = JsonUtils.toJson(insertPage);
         database.vcsLogDao().insert(vcsLogEntity);
     }
@@ -66,6 +67,11 @@ public class LacertaVcsImpl implements LacertaVcs {
 
     }
 
+    @Override
+    public void undo() {
+        database.vcsLogDao().deleteLatestByDocumentId(documentId);
+    }
+
     @Override
     public void createDocument(String documentId) {
         logger.debug(TAG, "createDocument");
@@ -75,7 +81,8 @@ public class LacertaVcsImpl implements LacertaVcs {
         vcsLogEntity.documentId = documentId;
         vcsLogEntity.branchName = "master";
         vcsLogEntity.createdAt = new java.util.Date();
-        vcsLogEntity.action = "ph-createDocument";
+        vcsLogEntity.actionType = ActionType.CREATE_DOCUMENT.getValue();
+        vcsLogEntity.action = "";
         database.vcsLogDao().insert(vcsLogEntity);
     }
 
@@ -147,6 +154,108 @@ public class LacertaVcsImpl implements LacertaVcs {
         });
     }
 
+    @Override
+    public CompletableFuture<ArrayList<VcsLogModel>> getLogHistory() {
+        return null;
+    }
+
+    @Override
+    public CompletableFuture<ArrayList<VcsLogModel>> getLogHistoryInRev(String revId) {
+        return CompletableFuture.supplyAsync(() -> {
+            logger.debug(TAG, "getLogHistoryInRev");
+            ArrayList<VcsLogModel> vcsLogModels = new ArrayList<>();
+
+            VcsRevEntity vcsRevEntity = database.vcsRevDao().findById(revId);
+            ArrayList<VcsLogEntity> vcsLogEntities = getLogInRevAsync(vcsRevEntity).join(); // TODO-rca: リファクタリング
+            vcsLogEntities.forEach(vcsLogEntity -> {
+                VcsLogModel vcsLogModel = new VcsLogModel();
+                vcsLogModel.setId(vcsLogEntity.id);
+                vcsLogModel.setDocumentId(vcsLogEntity.documentId);
+                vcsLogModel.setBranchName(vcsLogEntity.branchName);
+                vcsLogModel.setCreatedAt(vcsLogEntity.createdAt);
+                vcsLogModel.setAction(vcsLogEntity.action);
+                vcsLogModels.add(vcsLogModel);
+            });
+
+            return vcsLogModels;
+        });
+    }
+
+    private CompletableFuture<ArrayList<VcsRevEntity>> getRevBeforeTargetIdAsync(String revId){
+        return CompletableFuture.supplyAsync(() -> {
+            ArrayList<VcsRevEntity> vcsRevEntities = new ArrayList<>(database.vcsRevDao().findByDocumentId(this.documentId));
+            ArrayList<VcsRevEntity> vcsRevEntitiesBeforeTarget = new ArrayList<>();
+            vcsRevEntities.forEach(vcsRevEntity -> {
+                if(vcsRevEntity.id.equals(revId)){
+                    vcsRevEntitiesBeforeTarget.add(vcsRevEntity);
+                    return;
+                }
+                vcsRevEntitiesBeforeTarget.add(vcsRevEntity);
+            });
+            logger.debug(TAG, "getRevBeforeTargetIdAsync finished\nResult size: " + vcsRevEntitiesBeforeTarget.size());
+            return vcsRevEntitiesBeforeTarget;
+        });
+    }
+
+    private CompletableFuture<ArrayList<VcsLogEntity>> getLogInRevsAsync(ArrayList<VcsRevEntity> vcsRevEntities){
+        return CompletableFuture.supplyAsync(() -> {
+            List<String> logIds = new ArrayList<>();
+            vcsRevEntities.forEach(vcsRevEntity -> {
+                logIds.addAll(vcsRevEntity.logIds);
+            });
+            // TODO-rca: ソートしないといけないかも（順番が保証されているわけではない + 順番が変わるとほぼ確実に壊れる）
+            ArrayList<VcsLogEntity> vcsLogEntities = new ArrayList<>(database.vcsLogDao().findByIds(logIds));
+            logger.debug(TAG, "getLogInRevsAsync finished\nResult size: " + vcsLogEntities.size());
+            return vcsLogEntities;
+        });
+    }
+
+    private CompletableFuture<ArrayList<VcsLogEntity>> getLogInRevAsync(VcsRevEntity revEntity) {
+        return CompletableFuture.supplyAsync(() -> {
+            ArrayList<VcsLogEntity> vcsLogEntities = new ArrayList<>(database.vcsLogDao().findByIds(revEntity.logIds));
+            logger.debug(TAG, "getLogInRevAsync finished\nResult size: " + vcsLogEntities.size());
+            return vcsLogEntities;
+        });
+    }
+
+    @Override
+    public CompletableFuture<ArrayList<String>> getDocumentPagePathListRev(String revId) {
+        return CompletableFuture.supplyAsync(() -> {
+            logger.debug(TAG, "getDocumentPagePathListRev");
+            ArrayList<VcsLogEntity> vcsLogEntities = getRevBeforeTargetIdAsync(revId).thenCompose(this::getLogInRevsAsync).join();
+
+            ArrayList<String> fileNameList = new ArrayList<>();
+            for(VcsLogEntity vcsLogEntity : vcsLogEntities){
+                logger.debug(TAG, "getDocumentPagePathListRev: processing " + vcsLogEntity.id + "(Type: " + vcsLogEntity.actionType + ")");
+                if (vcsLogEntity.actionType.equals(ActionType.INSERT_PAGE.getValue())){
+                    InsertPage insertPage = (InsertPage) JsonUtils.fromJson(vcsLogEntity.action, ActionType.INSERT_PAGE);
+                    logger.debug(TAG, "getDocumentPagePathListRev: Inserting " + insertPage.getFileName() + " at " + insertPage.getIndex());
+                    if (fileNameList.size() <= insertPage.getIndex()) {
+                        logger.debug(TAG, "Index out of range, appending");
+                        fileNameList.add(insertPage.getFileName());
+                    } else {
+                        fileNameList.add(insertPage.getIndex(), insertPage.getFileName());
+                    }
+                } else if (vcsLogEntity.actionType.equals(ActionType.UPDATE_PAGE.getValue())){
+                    UpdatePage updatePage = (UpdatePage) JsonUtils.fromJson(vcsLogEntity.action, ActionType.UPDATE_PAGE);
+                    logger.debug(TAG, "getDocumentPagePathListRev: Updating " + updatePage.getFileName() + " at " + updatePage.getIndex());
+                    fileNameList.set(updatePage.getIndex(), updatePage.getFileName());
+                } else if (vcsLogEntity.actionType.equals(ActionType.DELETE_PAGE.getValue())){
+                    DeletePage deletePage = (DeletePage) JsonUtils.fromJson(vcsLogEntity.action, ActionType.DELETE_PAGE);
+                    logger.debug(TAG, "getDocumentPagePathListRev: Deleting " + deletePage.getIndex());
+                    fileNameList.remove(deletePage.getIndex());
+                } else if (vcsLogEntity.actionType.equals(ActionType.CREATE_DOCUMENT.getValue())) {
+                    // Ignore
+                    logger.debug(TAG, "getDocumentPagePathListRev: Ignored action type: " + vcsLogEntity.actionType);
+                } else {
+                    logger.error(TAG, "getDocumentPagePathListRev: Unknown action type");
+                }
+            }
+
+            return fileNameList;
+        });
+    }
+
     @Override
     public void printLog() {
         logger.debug(TAG, "printLog");