+++ /dev/null
-/*
- * Copyright © 2019 Damyan Ivanov.
- * This file is part of MoLe.
- * MoLe is free software: you can distribute it and/or modify it
- * under the term of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your opinion), any later version.
- *
- * MoLe is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License terms for details.
- *
- * You should have received a copy of the GNU General Public License
- * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
- */
-
-package net.ktnx.mobileledger.utils;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.database.Cursor;
-import android.database.sqlite.SQLiteDatabase;
-import android.os.AsyncTask;
-import android.os.Build;
-import android.widget.AutoCompleteTextView;
-import android.widget.FilterQueryProvider;
-import android.widget.SimpleCursorAdapter;
-
-import androidx.annotation.NonNull;
-
-import net.ktnx.mobileledger.App;
-import net.ktnx.mobileledger.async.DbOpQueue;
-import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
-import net.ktnx.mobileledger.model.Data;
-import net.ktnx.mobileledger.model.MobileLedgerProfile;
-
-import org.jetbrains.annotations.NonNls;
-
-import static net.ktnx.mobileledger.utils.Logger.debug;
-
-public final class MLDB {
- public static final String ACCOUNTS_TABLE = "accounts";
- public static final String DESCRIPTION_HISTORY_TABLE = "description_history";
- public static final String OPT_LAST_SCRAPE = "last_scrape";
- @NonNls
- public static final String OPT_PROFILE_UUID = "profile_uuid";
- private static final String NO_PROFILE = "-";
- @SuppressWarnings("unused")
- static public int getIntOption(String name, int default_value) {
- String s = getOption(name, String.valueOf(default_value));
- try {
- return Integer.parseInt(s);
- }
- catch (Exception e) {
- debug("db", "returning default int value of " + name, e);
- return default_value;
- }
- }
- @SuppressWarnings("unused")
- static public long getLongOption(String name, long default_value) {
- String s = getOption(name, String.valueOf(default_value));
- try {
- return Long.parseLong(s);
- }
- catch (Exception e) {
- debug("db", "returning default long value of " + name, e);
- return default_value;
- }
- }
- static public void getOption(String name, String defaultValue, GetOptCallback cb) {
- AsyncTask<Void, Void, String> t = new AsyncTask<Void, Void, String>() {
- @Override
- protected String doInBackground(Void... params) {
- SQLiteDatabase db = App.getDatabase();
- try (Cursor cursor = db
- .rawQuery("select value from options where profile = ? and name=?",
- new String[]{NO_PROFILE, name}))
- {
- if (cursor.moveToFirst()) {
- String result = cursor.getString(0);
-
- if (result == null) result = defaultValue;
-
- debug("async-db", "option " + name + "=" + result);
- return result;
- }
- else return defaultValue;
- }
- catch (Exception e) {
- debug("db", "returning default value for " + name, e);
- return defaultValue;
- }
- }
- @Override
- protected void onPostExecute(String result) {
- cb.onResult(result);
- }
- };
-
- t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null);
- }
- static public String getOption(String name, String default_value) {
- debug("db", "about to fetch option " + name);
- SQLiteDatabase db = App.getDatabase();
- try (Cursor cursor = db.rawQuery("select value from options where profile = ? and name=?",
- new String[]{NO_PROFILE, name}))
- {
- if (cursor.moveToFirst()) {
- String result = cursor.getString(0);
-
- if (result == null) result = default_value;
-
- debug("db", "option " + name + "=" + result);
- return result;
- }
- else return default_value;
- }
- catch (Exception e) {
- debug("db", "returning default value for " + name, e);
- return default_value;
- }
- }
- static public void setOption(String name, String value) {
- debug("option", String.format("%s := %s", name, value));
- DbOpQueue.add("insert or replace into options(profile, name, value) values(?, ?, ?);",
- new String[]{NO_PROFILE, name, value});
- }
- @SuppressWarnings("unused")
- static public void setLongOption(String name, long value) {
- setOption(name, String.valueOf(value));
- }
- @TargetApi(Build.VERSION_CODES.N)
- public static void hookAutocompletionAdapter(final Context context,
- final AutoCompleteTextView view,
- final String table, final String field) {
- hookAutocompletionAdapter(context, view, table, field, true, null, null);
- }
- @TargetApi(Build.VERSION_CODES.N)
- public static void hookAutocompletionAdapter(final Context context,
- final AutoCompleteTextView view,
- final String table, final String field,
- final boolean profileSpecific,
- final DescriptionSelectedCallback callback,
- final MobileLedgerProfile profile) {
- String[] from = {field};
- int[] to = {android.R.id.text1};
- SimpleCursorAdapter adapter =
- new SimpleCursorAdapter(context, android.R.layout.simple_dropdown_item_1line, null,
- from, to, 0);
- adapter.setStringConversionColumn(1);
-
- FilterQueryProvider provider = constraint -> {
- if (constraint == null) return null;
-
- String str = constraint.toString().toUpperCase();
- debug("autocompletion", "Looking for " + str);
-
- String sql;
- String[] params;
- if (profileSpecific) {
- MobileLedgerProfile p = (profile == null) ? Data.profile.getValue() : profile;
- if (p == null) throw new AssertionError();
- sql = String.format(
- "SELECT rowid as _id, %s, CASE WHEN %s_upper LIKE ?||'%%' THEN 1 " +
- "WHEN %s_upper LIKE '%%:'||?||'%%' then 2 " +
- "WHEN %s_upper LIKE '%% '||?||'%%' THEN 3 " + "ELSE 9 END " + "FROM %s " +
- "WHERE profile=? AND %s_upper LIKE '%%'||?||'%%' " +
- "ORDER BY 3, %s_upper, 1;", field, field, field, field, table, field,
- field);
- params = new String[]{str, str, str, p.getUuid(), str};
- }
- else {
- sql = String.format(
- "SELECT rowid as _id, %s, CASE WHEN %s_upper LIKE ?||'%%' THEN 1 " +
- "WHEN %s_upper LIKE '%%:'||?||'%%' THEN 2 " +
- "WHEN %s_upper LIKE '%% '||?||'%%' THEN 3 " + "ELSE 9 END " + "FROM %s " +
- "WHERE %s_upper LIKE '%%'||?||'%%' " + "ORDER BY 3, %s_upper, 1;", field,
- field, field, field, table, field, field);
- params = new String[]{str, str, str, str};
- }
- debug("autocompletion", sql);
- SQLiteDatabase db = App.getDatabase();
-
- return db.rawQuery(sql, params);
- };
-
- adapter.setFilterQueryProvider(provider);
-
- view.setAdapter(adapter);
-
- if (callback != null) view.setOnItemClickListener((parent, itemView, position, id) -> {
- callback.descriptionSelected(String.valueOf(view.getText()));
- }
- public static void queryInBackground(@NonNull String statement, @NonNull String[] params,
- @NonNull CallbackHelper callbackHelper) {
- /* All callbacks are called in the new (asynchronous) thread! */
- Thread t = new Thread(() -> {
- callbackHelper.onStart();
- try {
- SQLiteDatabase db = App.getDatabase();
-
- try (Cursor cursor = db.rawQuery(statement, params)) {
- boolean gotRow = false;
- while (cursor.moveToNext()) {
- gotRow = true;
- if (!callbackHelper.onRow(cursor))
- break;
- }
- if (!gotRow) {
- callbackHelper.onNoRows();
- }
- }
- }
- catch (Exception e) {
- callbackHelper.onException(e);
- }
- finally {
- callbackHelper.onDone();
- }
- });
-
- t.start();
- }
- /* MLDB.CallbackHelper -- Abstract class for asynchronous SQL query callbacks */
- @SuppressWarnings("WeakerAccess")
- abstract public static class CallbackHelper {
- public void onStart() {}
- public abstract boolean onRow(@NonNull Cursor cursor);
- public void onNoRows() {}
- public void onException(Exception exception) {
- Logger.debug("MLDB", "Exception in asynchronous SQL", exception);
- }
- public void onDone() {}
- }
-}
-
projects / mobile-ledger.git / blobdiff