mirror of
https://github.com/nextcloud/notes-android.git
synced 2024-11-24 05:46:14 +03:00
More defensive coding style on database level
This commit is contained in:
stefan-niedermann
parent
bd3421f835
commit
16b98435da
3 changed files with 116 additions and 63 deletions
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@ -8,6 +8,7 @@ import android.content.pm.ShortcutManager;
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import android.content.res.Resources;
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import android.database.Cursor;
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import android.database.DatabaseUtils;
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import android.database.sqlite.SQLiteConstraintException;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.os.Build;
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@ -36,6 +37,7 @@ import it.niedermann.owncloud.notes.model.DBNote;
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import it.niedermann.owncloud.notes.model.DBStatus;
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import it.niedermann.owncloud.notes.model.LocalAccount;
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import it.niedermann.owncloud.notes.model.NavigationAdapter;
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import it.niedermann.owncloud.notes.util.DatabaseIndexUtil;
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import it.niedermann.owncloud.notes.util.ICallback;
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import it.niedermann.owncloud.notes.util.NoteUtil;
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@ -129,14 +131,14 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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createAccountIndexes(db);
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}
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@Override
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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if (oldVersion < 3) {
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recreateDatabase(db);
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}
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if (oldVersion < 4) {
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clearDatabase(db);
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db.delete(table_notes, null, null);
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db.delete(table_accounts, null, null);
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}
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if (oldVersion < 5) {
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db.execSQL("ALTER TABLE " + table_notes + " ADD COLUMN " + key_remote_id + " INTEGER");
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@ -147,7 +149,7 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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db.execSQL("ALTER TABLE " + table_notes + " ADD COLUMN " + key_favorite + " INTEGER DEFAULT 0");
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}
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if (oldVersion < 7) {
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dropIndexes(db);
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DatabaseIndexUtil.dropIndexes(db);
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db.execSQL("ALTER TABLE " + table_notes + " ADD COLUMN " + key_category + " TEXT NOT NULL DEFAULT ''");
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db.execSQL("ALTER TABLE " + table_notes + " ADD COLUMN " + key_etag + " TEXT");
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createNotesIndexes(db);
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@ -166,7 +168,7 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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// Add accountId to notes table
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db.execSQL("ALTER TABLE " + table_notes + " ADD COLUMN " + key_account_id + " INTEGER NOT NULL DEFAULT 0");
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createIndex(db, table_notes, key_account_id);
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DatabaseIndexUtil.createIndex(db, table_notes, key_account_id);
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// Migrate existing account from SharedPreferences
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SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
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@ -222,44 +224,19 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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recreateDatabase(db);
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}
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private void clearDatabase(SQLiteDatabase db) {
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db.delete(table_notes, null, null);
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}
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private void recreateDatabase(SQLiteDatabase db) {
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dropIndexes(db);
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db.execSQL("DROP TABLE " + table_notes);
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DatabaseIndexUtil.dropIndexes(db);
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db.execSQL("DROP TABLE IF EXISTS " + table_notes);
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db.execSQL("DROP TABLE IF EXISTS " + table_accounts);
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onCreate(db);
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}
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private void dropIndexes(SQLiteDatabase db) {
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Cursor c = db.query("sqlite_master", new String[]{"name"}, "type=?", new String[]{"index"}, null, null, null);
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while (c.moveToNext()) {
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db.execSQL("DROP INDEX " + c.getString(0));
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}
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c.close();
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private static void createNotesIndexes(@NonNull SQLiteDatabase db) {
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DatabaseIndexUtil.createIndex(db, table_notes, key_remote_id, key_account_id, key_status, key_favorite, key_category, key_modified);
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}
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private void createNotesIndexes(SQLiteDatabase db) {
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createIndex(db, table_notes, key_remote_id);
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createIndex(db, table_notes, key_account_id);
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createIndex(db, table_notes, key_status);
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createIndex(db, table_notes, key_favorite);
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createIndex(db, table_notes, key_category);
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createIndex(db, table_notes, key_modified);
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}
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private void createAccountIndexes(SQLiteDatabase db) {
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createIndex(db, table_accounts, key_url);
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createIndex(db, table_accounts, key_username);
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createIndex(db, table_accounts, key_account_name);
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createIndex(db, table_accounts, key_etag);
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createIndex(db, table_accounts, key_modified);
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}
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private void createIndex(SQLiteDatabase db, String table, String column) {
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String indexName = table + "_" + column + "_idx";
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db.execSQL("CREATE INDEX IF NOT EXISTS " + indexName + " ON " + table + "(" + column + ")");
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private static void createAccountIndexes(@NonNull SQLiteDatabase db) {
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DatabaseIndexUtil.createIndex(db, table_accounts, key_url, key_username, key_account_name, key_etag, key_modified);
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}
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public Context getContext() {
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@ -360,12 +337,14 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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*/
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@NonNull
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private DBNote getNoteFromCursor(long accountId, @NonNull Cursor cursor) {
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validateAccountId(accountId);
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Calendar modified = Calendar.getInstance();
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modified.setTimeInMillis(cursor.getLong(4) * 1000);
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return new DBNote(cursor.getLong(0), cursor.getLong(1), modified, cursor.getString(3), cursor.getString(5), cursor.getInt(6) > 0, cursor.getString(7), cursor.getString(8), DBStatus.parse(cursor.getString(2)), accountId);
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}
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public void debugPrintFullDB(long accountId) {
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validateAccountId(accountId);
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List<DBNote> notes = getNotesCustom(accountId, "", new String[]{}, default_order);
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Log.v(TAG, "Full Database (" + notes.size() + " notes):");
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for (DBNote note : notes) {
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@ -376,6 +355,7 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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@NonNull
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@WorkerThread
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public Map<Long, Long> getIdMap(long accountId) {
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validateAccountId(accountId);
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Map<Long, Long> result = new HashMap<>();
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SQLiteDatabase db = getReadableDatabase();
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Cursor cursor = db.query(table_notes, new String[]{key_remote_id, key_id}, key_status + " != ? AND " + key_account_id + " = ? ", new String[]{DBStatus.LOCAL_DELETED.getTitle(), "" + accountId}, null, null, null);
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@ -394,12 +374,14 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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@NonNull
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@WorkerThread
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public List<DBNote> getNotes(long accountId) {
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validateAccountId(accountId);
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return getNotesCustom(accountId, key_status + " != ? AND " + key_account_id + " = ?", new String[]{DBStatus.LOCAL_DELETED.getTitle(), "" + accountId}, default_order);
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}
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@NonNull
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@WorkerThread
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public List<DBNote> getRecentNotes(long accountId) {
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validateAccountId(accountId);
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return getNotesCustom(accountId, key_status + " != ? AND " + key_account_id + " = ?", new String[]{DBStatus.LOCAL_DELETED.getTitle(), "" + accountId}, key_modified + " DESC", "4");
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}
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@ -452,13 +434,15 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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*/
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@NonNull
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@WorkerThread
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public List<DBNote> getLocalModifiedNotes(long accountId) {
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List<DBNote> getLocalModifiedNotes(long accountId) {
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validateAccountId(accountId);
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return getNotesCustom(accountId, key_status + " != ? AND " + key_account_id + " = ?", new String[]{DBStatus.VOID.getTitle(), "" + accountId}, null);
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}
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@NonNull
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@WorkerThread
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public Map<String, Integer> getFavoritesCount(long accountId) {
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validateAccountId(accountId);
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SQLiteDatabase db = getReadableDatabase();
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Cursor cursor = db.query(
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table_notes,
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@ -479,6 +463,7 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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@NonNull
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@WorkerThread
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public List<NavigationAdapter.NavigationItem> getCategories(long accountId) {
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validateAccountId(accountId);
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SQLiteDatabase db = getReadableDatabase();
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Cursor cursor = db.query(
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table_notes,
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@ -626,10 +611,8 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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* from the Server.
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*
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* @param id long - ID of the Note that should be deleted
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* @return Affected rows
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*/
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@SuppressWarnings("UnusedReturnValue")
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public int deleteNoteAndSync(long id) {
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public void deleteNoteAndSync(long id) {
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SQLiteDatabase db = this.getWritableDatabase();
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ContentValues values = new ContentValues();
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values.put(key_status, DBStatus.LOCAL_DELETED.getTitle());
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@ -650,7 +633,6 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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}
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});
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}
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return i;
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}
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/**
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@ -671,33 +653,40 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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* Notify about changed notes.
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*/
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void notifyNotesChanged() {
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updateSingleNoteWidgets();
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updateNoteListWidgets();
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updateSingleNoteWidgets(getContext());
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updateNoteListWidgets(getContext());
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}
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/**
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* Update single note widget, if the note data was changed.
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*/
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private void updateSingleNoteWidgets() {
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Intent intent = new Intent(getContext(), SingleNoteWidget.class);
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private static void updateSingleNoteWidgets(Context context) {
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Intent intent = new Intent(context, SingleNoteWidget.class);
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intent.setAction("android.appwidget.action.APPWIDGET_UPDATE");
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getContext().sendBroadcast(intent);
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context.sendBroadcast(intent);
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}
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/**
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* Update note list widgets, if the note data was changed.
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*/
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private void updateNoteListWidgets() {
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Intent intent = new Intent(getContext(), NoteListWidget.class);
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private static void updateNoteListWidgets(Context context) {
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Intent intent = new Intent(context, NoteListWidget.class);
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intent.setAction("android.appwidget.action.APPWIDGET_UPDATE");
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getContext().sendBroadcast(intent);
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context.sendBroadcast(intent);
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}
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public boolean hasAccounts() {
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return DatabaseUtils.queryNumEntries(getReadableDatabase(), table_accounts) > 0;
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}
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public void addAccount(String url, String username, String accountName) {
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/**
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*
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* @param url URL to the root of the used Nextcloud instance without trailing slash
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* @param username Username of the account
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* @param accountName Composed by the username and the host of the URL, separated by @-sign
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* @throws SQLiteConstraintException in case accountName already exists
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*/
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public void addAccount(@NonNull String url, @NonNull String username, @NonNull String accountName) throws SQLiteConstraintException {
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SQLiteDatabase db = this.getWritableDatabase();
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ContentValues values = new ContentValues();
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values.put(key_url, url);
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@ -706,7 +695,13 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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db.insertOrThrow(table_accounts, null, values);
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}
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/**
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*
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* @param accountId account which should be read
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* @return a LocalAccount object for the given accountId
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*/
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public LocalAccount getAccount(long accountId) {
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validateAccountId(accountId);
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SQLiteDatabase db = getReadableDatabase();
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Cursor cursor = db.query(table_accounts, new String[]{key_id, key_url, key_account_name, key_username, key_etag, key_modified}, key_id + " = ?", new String[]{accountId + ""}, null, null, null, null);
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LocalAccount account = new LocalAccount();
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@ -740,8 +735,10 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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return accounts;
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}
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@Nullable
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public LocalAccount getLocalAccountByAccountName(String accountName) {
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if (accountName == null) {
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Log.e(TAG, "accountName is null");
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return null;
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}
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SQLiteDatabase db = getReadableDatabase();
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@ -759,10 +756,17 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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return account;
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}
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public void deleteAccount(long accountId) {
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/**
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*
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* @param accountId the id of the account that should be deleted
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* @throws IllegalArgumentException if no account has been deleted by the given accountId
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*/
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public void deleteAccount(long accountId) throws IllegalArgumentException {
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validateAccountId(accountId);
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SQLiteDatabase db = this.getWritableDatabase();
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int deletedAccounts = db.delete(table_accounts, key_id + " = ?", new String[]{accountId + ""});
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if (deletedAccounts < 1) {
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Log.e(TAG, "AccountId '" + accountId + "' did not delete any account");
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throw new IllegalArgumentException("The given accountId does not delete any row");
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} else if (deletedAccounts > 1) {
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Log.e(TAG, "AccountId '" + accountId + "' deleted unexpectedly '" + deletedAccounts + "' accounts");
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@ -772,6 +776,7 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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}
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void updateETag(long accountId, String etag) {
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validateAccountId(accountId);
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SQLiteDatabase db = this.getWritableDatabase();
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ContentValues values = new ContentValues();
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values.put(key_etag, etag);
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@ -784,6 +789,10 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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}
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void updateModified(long accountId, long modified) {
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validateAccountId(accountId);
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if(modified < 0) {
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throw new IllegalArgumentException("modified must be greater or equal 0");
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}
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SQLiteDatabase db = this.getWritableDatabase();
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ContentValues values = new ContentValues();
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values.put(key_modified, modified);
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@ -794,4 +803,10 @@ public class NoteSQLiteOpenHelper extends SQLiteOpenHelper {
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Log.e(TAG, "Updated " + updatedRows + " but expected only 1 for accountId = " + accountId + " and modified = " + modified);
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}
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}
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private static void validateAccountId(long accountId) {
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if(accountId < 1) {
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throw new IllegalArgumentException("accountId must be greater than 0");
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}
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}
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}
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@ -0,0 +1,32 @@
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package it.niedermann.owncloud.notes.util;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import androidx.annotation.NonNull;
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public class DatabaseIndexUtil {
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private DatabaseIndexUtil() {
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}
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public static void createIndex(@NonNull SQLiteDatabase db, @NonNull String table, @NonNull String ...columns) {
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for (String column: columns) {
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createIndex(db, table, column);
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}
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}
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public static void createIndex(@NonNull SQLiteDatabase db, @NonNull String table, @NonNull String column) {
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String indexName = table + "_" + column + "_idx";
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db.execSQL("CREATE INDEX IF NOT EXISTS " + indexName + " ON " + table + "(" + column + ")");
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}
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public static void dropIndexes(@NonNull SQLiteDatabase db) {
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Cursor c = db.query("sqlite_master", new String[]{"name"}, "type=?", new String[]{"index"}, null, null, null);
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while (c.moveToNext()) {
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db.execSQL("DROP INDEX " + c.getString(0));
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}
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c.close();
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}
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}
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@ -6,12 +6,30 @@ import android.text.Spanned;
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import android.text.method.LinkMovementMethod;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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/**
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* Some helper functionality in alike the Android support library.
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* Currently, it offers methods for working with HTML string resources.
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*/
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public class SupportUtil {
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private SupportUtil() {
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}
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/**
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* Fills a {@link TextView} with HTML content and activates links in that {@link TextView}.
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*
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* @param view The {@link TextView} which should be filled.
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* @param stringId The string resource containing HTML tags (escaped by <code><</code>)
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* @param formatArgs Arguments for the string resource.
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*/
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public static void setHtml(@NonNull TextView view, int stringId, Object... formatArgs) {
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view.setText(SupportUtil.fromHtml(view.getResources().getString(stringId, formatArgs)));
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view.setMovementMethod(LinkMovementMethod.getInstance());
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}
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/**
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* Creates a {@link Spanned} from a HTML string on all SDK versions.
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*
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@ -27,16 +45,4 @@ public class SupportUtil {
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return Html.fromHtml(source);
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}
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}
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/**
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* Fills a {@link TextView} with HTML content and activates links in that {@link TextView}.
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*
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* @param view The {@link TextView} which should be filled.
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* @param stringId The string resource containing HTML tags (escaped by <code><</code>)
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* @param formatArgs Arguments for the string resource.
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*/
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public static void setHtml(TextView view, int stringId, Object... formatArgs) {
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view.setText(SupportUtil.fromHtml(view.getResources().getString(stringId, formatArgs)));
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view.setMovementMethod(LinkMovementMethod.getInstance());
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}
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}
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