package net.ktnx.mobileledger.utils;
import android.app.Application;
-import android.content.res.Resources;
-import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
-import android.util.Log;
import androidx.lifecycle.MutableLiveData;
-import net.ktnx.mobileledger.BuildConfig;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.Locale;
+import net.ktnx.mobileledger.db.DB;
import static net.ktnx.mobileledger.utils.Logger.debug;
public class MobileLedgerDatabase extends SQLiteOpenHelper {
public static final MutableLiveData<Boolean> initComplete = new MutableLiveData<>(false);
- public static final String DB_NAME = "MoLe.db";
- private static final int LATEST_REVISION = 53;
- private static final String CREATE_DB_SQL = "create_db";
- private final Application mContext;
-
public MobileLedgerDatabase(Application context) {
- super(context, DB_NAME, null, LATEST_REVISION);
+ super(context, DB.DB_NAME, null, DB.REVISION);
debug("db", "creating helper instance");
- mContext = context;
super.setWriteAheadLoggingEnabled(true);
}
@Override
public void onCreate(SQLiteDatabase db) {
- debug("db", "onCreate called");
- applyRevisionFile(db, CREATE_DB_SQL);
- }
-
- @Override
- public void onConfigure(SQLiteDatabase db) {
- super.onConfigure(db);
- db.execSQL("pragma case_sensitive_like=ON;");
- if (BuildConfig.DEBUG)
- db.execSQL("PRAGMA foreign_keys=ON");
+ throw new IllegalStateException("Should not happen. Where's Room!?");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
- debug("db",
- String.format(Locale.US, "needs upgrade from version %d to version %d", oldVersion,
- newVersion));
- for (int i = oldVersion + 1; i <= newVersion; i++)
- applyRevision(db, i);
+ throw new IllegalStateException("Should not happen. Where's Room!?");
}
- private void applyRevision(SQLiteDatabase db, int rev_no) {
- String rev_file = String.format(Locale.US, "sql_%d", rev_no);
- applyRevisionFile(db, rev_file);
- }
- private void applyRevisionFile(SQLiteDatabase db, String rev_file) {
- final Resources rm = mContext.getResources();
- int res_id = rm.getIdentifier(rev_file, "raw", mContext.getPackageName());
- if (res_id == 0)
- throw new SQLException(String.format(Locale.US, "No resource for %s", rev_file));
- db.beginTransaction();
- try (InputStream res = rm.openRawResource(res_id)) {
- debug("db", "Applying " + rev_file);
- InputStreamReader isr = new InputStreamReader(res);
- BufferedReader reader = new BufferedReader(isr);
-
- String line;
- int line_no = 1;
- while ((line = reader.readLine()) != null) {
- if (line.startsWith("--")) {
- line_no++;
- continue;
- }
- if (line.isEmpty()) {
- line_no++;
- continue;
- }
- try {
- db.execSQL(line);
- }
- catch (Exception e) {
- throw new RuntimeException(
- String.format("Error applying %s, line %d", rev_file, line_no), e);
- }
- line_no++;
- }
-
- db.setTransactionSuccessful();
- }
- catch (IOException e) {
- Log.e("db", String.format("Error opening raw resource for %s", rev_file));
- e.printStackTrace();
- }
- finally {
- db.endTransaction();
- }
+ @Override
+ public void onConfigure(SQLiteDatabase db) {
+ super.onConfigure(db);
+ // force a check by Room to ensure everything is OK
+ // TODO: remove when all DB access is via Room
+ DB.get()
+ .compileStatement("SELECT COUNT(*) FROM profiles");
}
}