From 4dee17b7de5c8f0dd8030c978f6b635fcf50c2ca Mon Sep 17 00:00:00 2001
From: pegasko <pegasko@pegasko.art>
Date: Wed, 12 Jun 2024 04:45:12 +0300
Subject: [PATCH] File export / import
---
Yeeemp/app/src/main/AndroidManifest.xml | 6 +-
.../art/pegasko/yeeemp/impl/DBWrapper.java | 22 ++-
.../art/pegasko/yeeemp/impl/DataUtils.java | 121 ++++++++++++++
.../java/art/pegasko/yeeemp/impl/Init.java | 4 +
.../yeeemp/ui/activity/QueueListActivity.java | 151 ++++++++++++++++++
.../art/pegasko/yeeemp/ui/activity/Utils.java | 6 +
.../main/res/menu/queue_list_toolbar_menu.xml | 10 ++
7 files changed, 315 insertions(+), 5 deletions(-)
create mode 100644 Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DataUtils.java
create mode 100644 Yeeemp/app/src/main/res/menu/queue_list_toolbar_menu.xml
diff --git a/Yeeemp/app/src/main/AndroidManifest.xml b/Yeeemp/app/src/main/AndroidManifest.xml
index 9b0c1a5..c7243d7 100644
--- a/Yeeemp/app/src/main/AndroidManifest.xml
+++ b/Yeeemp/app/src/main/AndroidManifest.xml
@@ -1,7 +1,11 @@
<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+<manifest
+ xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
+ <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+ <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+
<application
android:allowBackup="true"
android:dataExtractionRules="@xml/data_extraction_rules"
diff --git a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DBWrapper.java b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DBWrapper.java
index a162e31..44f4320 100644
--- a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DBWrapper.java
+++ b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DBWrapper.java
@@ -34,7 +34,7 @@ public class DBWrapper extends Wrapper {
public static final boolean DEBUG = false;
public DBWrapper(Context context) {
- this.db = openDB(context);
+ this.db = openDB(context, DB_PATH);
this.queueMaker = new QueueMakerImpl(this.db);
this.eventMaker = new EventMakerImpl(this.db);
this.tagMaker = new TagMakerImpl(this.db);
@@ -127,19 +127,33 @@ public class DBWrapper extends Wrapper {
}
}
+ /**
+ * Get internal database path
+ */
+ static File getDBPath(Context context) {
+ return new File(context.getFilesDir(), DB_PATH);
+ }
+
/**
* @return opened and initialized database
*/
- private SQLiteDatabase openDB(Context context) {
+ private static SQLiteDatabase openDB(Context context, String dbPath) {
if (DBWrapper.DEBUG) {
try {
- new File(context.getFilesDir(), DB_PATH).delete();
+ new File(context.getFilesDir(), dbPath).delete();
} catch (Exception e) {
Log.wtf(TAG, e);
}
}
- SQLiteDatabase db = SQLiteDatabase.openDatabase(new File(context.getFilesDir(), DB_PATH).getPath(), null, SQLiteDatabase.OPEN_READWRITE | SQLiteDatabase.CREATE_IF_NECESSARY);
+ File path = getDBPath(context);
+ SQLiteDatabase db;
+ if (!path.exists()) {
+ db = SQLiteDatabase.openDatabase(path.getPath(), null, SQLiteDatabase.OPEN_READWRITE | SQLiteDatabase.CREATE_IF_NECESSARY);
+ } else {
+ db = SQLiteDatabase.openDatabase(path.getPath(), null, SQLiteDatabase.OPEN_READWRITE);
+ }
+
initDB(db);
return db;
}
diff --git a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DataUtils.java b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DataUtils.java
new file mode 100644
index 0000000..4d403e7
--- /dev/null
+++ b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/DataUtils.java
@@ -0,0 +1,121 @@
+/**
+ * Copyright 2024 pegasko
+ *
+ * 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 art.pegasko.yeeemp.impl;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.net.Uri;
+import android.os.FileUtils;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.text.SimpleDateFormat;
+
+import art.pegasko.yeeemp.ui.activity.Utils;
+
+public class DataUtils {
+ public static final String DATE_FORMAT = "yyyy-MM-dd-HH-mm-ss";
+
+ public static String formatTs(long timestamp) {
+ SimpleDateFormat sdf = new SimpleDateFormat(DataUtils.DATE_FORMAT);
+ return sdf.format(timestamp);
+ }
+
+ private static void copyStream(InputStream fis, OutputStream fos) throws IOException {
+ byte[] buffer = new byte[1024];
+ int lengthRead;
+ while ((lengthRead = fis.read(buffer)) > 0) {
+ fos.write(buffer, 0, lengthRead);
+ fos.flush();
+ }
+ }
+
+ /* just copy internal db to external storage */
+ public static void exportDatabase(Context context, File directory) throws Exception {
+ directory.mkdirs();
+
+ File internalFile = DBWrapper.getDBPath(context);
+ File externalFile = new File(directory, "export_" + formatTs(System.currentTimeMillis()) + ".db");
+ FileInputStream fis = new FileInputStream(internalFile);
+ FileOutputStream fos = new FileOutputStream(externalFile);
+
+ copyStream(fis, fos);
+
+ fis.close();
+ fos.close();
+ }
+
+ /* just copy internal db to external storage */
+ public static void exportDatabase(Context context, Uri uri) throws Exception {
+ File internalFile = DBWrapper.getDBPath(context);
+ InputStream fis = new FileInputStream(internalFile);
+ OutputStream fos = context.getContentResolver().openOutputStream(uri);
+
+ copyStream(fis, fos);
+
+ fis.close();
+ fos.close();
+ }
+
+ /* just copy external db to internal storage */
+ public static void importDatabase(Context context, Uri uri) throws Exception {
+ File internalFile = DBWrapper.getDBPath(context);
+ InputStream fis = context.getContentResolver().openInputStream(uri);
+ OutputStream fos = new FileOutputStream(internalFile);
+
+ copyStream(fis, fos);
+
+ fis.close();
+ fos.close();
+ }
+
+ public static void backupDatabase(Context context) throws IOException {
+ File internalFile = DBWrapper.getDBPath(context);
+ File backupFile = new File(context.getFilesDir(), "backup.db");
+
+ FileInputStream fis = new FileInputStream(internalFile);
+ FileOutputStream fos = new FileOutputStream(backupFile);
+
+ copyStream(fis, fos);
+
+ fis.close();
+ fos.close();
+ }
+
+ public static void restoreDatabase(Context context) throws IOException {
+ File internalFile = DBWrapper.getDBPath(context);
+ File backupFile = new File(context.getFilesDir(), "backup.db");
+
+ FileInputStream fis = new FileInputStream(backupFile);
+ FileOutputStream fos = new FileOutputStream(internalFile);
+
+ copyStream(fis, fos);
+
+ fis.close();
+ fos.close();
+ }
+
+ public static void deleteBackupDatabase(Context context) throws IOException {
+ File backupFile = new File(context.getFilesDir(), "backup.db");
+ backupFile.delete();
+ }
+}
diff --git a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/Init.java b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/Init.java
index 87c7ea5..a44a35f 100644
--- a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/Init.java
+++ b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/impl/Init.java
@@ -25,4 +25,8 @@ public class Init {
if (Wrapper.instance() == null)
Wrapper.setInstance(new DBWrapper(context));
}
+
+ public static void reinitDB(Context context) {
+ Wrapper.setInstance(new DBWrapper(context));
+ }
}
\ No newline at end of file
diff --git a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/QueueListActivity.java b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/QueueListActivity.java
index d26418e..b0115c0 100644
--- a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/QueueListActivity.java
+++ b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/QueueListActivity.java
@@ -16,29 +16,53 @@
package art.pegasko.yeeemp.ui.activity;
+import android.Manifest;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.os.Build;
import android.os.Bundle;
import com.google.android.material.snackbar.Snackbar;
+import androidx.activity.result.ActivityResultLauncher;
import androidx.appcompat.app.AppCompatActivity;
+import android.os.Environment;
import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
import android.view.View;
+import android.widget.Toast;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.content.PermissionChecker;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
+import java.io.File;
+import java.security.Permission;
+
import art.pegasko.yeeemp.base.Queue;
import art.pegasko.yeeemp.base.Wrapper;
import art.pegasko.yeeemp.databinding.ActivityQueueListBinding;
import art.pegasko.yeeemp.R;
+import art.pegasko.yeeemp.impl.DBWrapper;
+import art.pegasko.yeeemp.impl.DataUtils;
import art.pegasko.yeeemp.impl.Init;
public class QueueListActivity extends AppCompatActivity {
public static final String TAG = QueueListActivity.class.getSimpleName();
+ private static final int REQUEST_CODE_CREATE_FILE = 37;
+ private static final int REQUEST_CODE_OPEN_FILE = 19;
+
private AppBarConfiguration appBarConfiguration;
private ActivityQueueListBinding binding;
private RecyclerView queueList;
@@ -60,6 +84,26 @@ public class QueueListActivity extends AppCompatActivity {
setContentView(binding.getRoot());
setSupportActionBar(binding.toolbar);
+ /* Toolbar menu */
+ binding.toolbar.inflateMenu(R.menu.queue_list_toolbar_menu);
+ binding.toolbar.setOnMenuItemClickListener((MenuItem item) -> {
+ if (item.getItemId() == R.id.queue_list_toolbar_menu_export) {
+ Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
+ intent.setType("*/*");
+ intent.putExtra(Intent.EXTRA_TITLE, "export_" + DataUtils.formatTs(System.currentTimeMillis()) + ".db");
+ startActivityForResult(intent, REQUEST_CODE_CREATE_FILE);
+
+ return true;
+ } else if (item.getItemId() == R.id.queue_list_toolbar_menu_import) {
+ Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+ intent.setType("*/*");
+ startActivityForResult(intent, REQUEST_CODE_OPEN_FILE);
+
+ return true;
+ }
+ return false;
+ });
+
/* Queue list */
queueListAdapter = new QueueRecyclerViewAdapter();
queueList = findViewById(R.id.content_queue_list__list);
@@ -86,6 +130,113 @@ public class QueueListActivity extends AppCompatActivity {
updateList();
}
+ @Override
+ public void onActivityResult(int requestCode, int resultCode, Intent resultData) {
+ super.onActivityResult(requestCode, resultCode, resultData);
+
+ if (requestCode == REQUEST_CODE_CREATE_FILE && resultCode == Activity.RESULT_OK) {
+ if (resultData != null) {
+ Uri uri = resultData.getData();
+ Log.i(TAG, "Exporting file to " + uri.toString());
+
+ try {
+ DataUtils.exportDatabase(getApplicationContext(), uri);
+ Toast.makeText(QueueListActivity.this, "Exported database", Toast.LENGTH_SHORT).show();
+ } catch (Exception e) {
+ Log.wtf(TAG, e);
+
+ new AlertDialog
+ .Builder(QueueListActivity.this)
+ .setTitle("Export failed")
+ .setMessage(e.getMessage())
+ .setCancelable(true)
+ .setNegativeButton("OK", (DialogInterface dialog, int id) -> { dialog.cancel(); })
+ .show();
+ }
+ }
+ } else if (requestCode == REQUEST_CODE_OPEN_FILE && resultCode == Activity.RESULT_OK) {
+ if (resultData != null) {
+ final Uri uri = resultData.getData();
+
+ new AlertDialog
+ .Builder(QueueListActivity.this)
+ .setTitle("Confirm action")
+ .setMessage("Import file as database? This will overwrite local database with external file without checking")
+ .setCancelable(true)
+ .setPositiveButton("Yes", (DialogInterface dialog, int id) -> {
+ Log.i(TAG, "Importing file from " + uri.toString());
+
+ try {
+ Log.i(TAG, "Backup before restore");
+ DataUtils.backupDatabase(getApplicationContext());
+
+ Log.i(TAG, "Importing database");
+ DataUtils.importDatabase(getApplicationContext(), uri);
+ Toast.makeText(QueueListActivity.this, "Imported database", Toast.LENGTH_SHORT).show();
+
+ Log.i(TAG, "Reloading database");
+ Init.reinitDB(getApplicationContext());
+ updateList();
+
+ Log.i(TAG, "Delete backup");
+ DataUtils.deleteBackupDatabase(getApplicationContext());
+ } catch (Exception e) {
+ Log.e(TAG, "Import failed");
+ Log.wtf(TAG, e);
+
+ new AlertDialog
+ .Builder(QueueListActivity.this)
+ .setTitle("Import failed")
+ .setMessage(e.getMessage())
+ .setCancelable(true)
+ .setNegativeButton("OK", (DialogInterface dialog2, int id2) -> { dialog2.cancel(); })
+ .show();
+
+ try {
+ Log.i(TAG, "Trying to restore backup");
+ DataUtils.restoreDatabase(getApplicationContext());
+
+ Log.i(TAG, "Reloading database");
+ Init.reinitDB(getApplicationContext());
+ updateList();
+
+ Log.i(TAG, "Delete backup");
+ DataUtils.deleteBackupDatabase(getApplicationContext());
+
+ new AlertDialog
+ .Builder(QueueListActivity.this)
+ .setTitle("Info")
+ .setMessage("Restored backup")
+ .setCancelable(true)
+ .setNegativeButton("OK", (DialogInterface dialog2, int id2) -> { dialog2.cancel(); })
+ .show();
+
+ } catch (Exception e2) {
+ Log.e(TAG, "Restore backup failed");
+ Log.wtf(TAG, e2);
+
+ new AlertDialog
+ .Builder(QueueListActivity.this)
+ .setTitle("Restore backup failed")
+ .setMessage(e2.getMessage())
+ .setCancelable(true)
+ .setNegativeButton("OK", (DialogInterface dialog2, int id2) -> { dialog2.cancel(); })
+ .show();
+ }
+ }
+ })
+ .setNegativeButton("Cancel", (DialogInterface dialog, int id) -> { dialog.cancel(); })
+ .show();
+ }
+ }
+ }
+
+ @Override
+ public boolean onCreateOptionsMenu(Menu menu) {
+ getMenuInflater().inflate(R.menu.queue_list_toolbar_menu, menu);
+ return true;
+ }
+
@Override
protected void onResume() {
super.onResume();
diff --git a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/Utils.java b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/Utils.java
index 8d91f67..3663462 100644
--- a/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/Utils.java
+++ b/Yeeemp/app/src/main/java/art/pegasko/yeeemp/ui/activity/Utils.java
@@ -49,4 +49,10 @@ public class Utils {
return finalItems;
}
+
+ public static int positiveHashCode16(Object o) {
+ if (o == null)
+ return 0;
+ return Math.abs(o.hashCode()) & ((1 << 16) - 1);
+ }
}
diff --git a/Yeeemp/app/src/main/res/menu/queue_list_toolbar_menu.xml b/Yeeemp/app/src/main/res/menu/queue_list_toolbar_menu.xml
new file mode 100644
index 0000000..261d8f1
--- /dev/null
+++ b/Yeeemp/app/src/main/res/menu/queue_list_toolbar_menu.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+ <item
+ android:id="@+id/queue_list_toolbar_menu_export"
+ android:title="Export" />
+
+ <item
+ android:id="@+id/queue_list_toolbar_menu_import"
+ android:title="Import" />
+</menu>
\ No newline at end of file