import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
-import android.util.Log;
+import android.os.AsyncTask;
+import net.ktnx.mobileledger.async.RetrieveTransactionsTask;
+import net.ktnx.mobileledger.ui.activity.MainActivity;
import net.ktnx.mobileledger.utils.LockHolder;
+import net.ktnx.mobileledger.utils.Locker;
+import net.ktnx.mobileledger.utils.Logger;
import net.ktnx.mobileledger.utils.MLDB;
import net.ktnx.mobileledger.utils.ObservableList;
import net.ktnx.mobileledger.utils.ObservableValue;
+import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Date;
+import java.util.List;
+import java.util.Locale;
import java.util.concurrent.atomic.AtomicInteger;
import androidx.lifecycle.MutableLiveData;
+import static net.ktnx.mobileledger.utils.Logger.debug;
+
public final class Data {
public static ObservableList<TransactionListItem> transactions =
new ObservableList<>(new ArrayList<>());
public static ObservableList<LedgerAccount> accounts = new ObservableList<>(new ArrayList<>());
- private static AtomicInteger backgroundTaskCount = new AtomicInteger(0);
public static MutableLiveData<Boolean> backgroundTasksRunning = new MutableLiveData<>(false);
public static MutableLiveData<Date> lastUpdateDate = new MutableLiveData<>();
- public static ObservableValue<MobileLedgerProfile> profile = new ObservableValue<>();
- public static ObservableList<MobileLedgerProfile> profiles =
- new ObservableList<>(new ArrayList<>());
+ public static MutableLiveData<MobileLedgerProfile> profile = new MutableLiveData<>();
+ public static MutableLiveData<ArrayList<MobileLedgerProfile>> profiles =
+ new MutableLiveData<>(new ArrayList<>());
public static ObservableValue<Boolean> optShowOnlyStarred = new ObservableValue<>();
public static MutableLiveData<String> accountFilter = new MutableLiveData<>();
+ private static AtomicInteger backgroundTaskCount = new AtomicInteger(0);
+ private static Locker profilesLocker = new Locker();
+ private static RetrieveTransactionsTask retrieveTransactionsTask;
public static void backgroundTaskStarted() {
int cnt = backgroundTaskCount.incrementAndGet();
- Log.d("data", String.format("background task count is %d after incrementing", cnt));
+ debug("data",
+ String.format(Locale.ENGLISH, "background task count is %d after incrementing",
+ cnt));
backgroundTasksRunning.postValue(cnt > 0);
}
public static void backgroundTaskFinished() {
int cnt = backgroundTaskCount.decrementAndGet();
- Log.d("data", String.format("background task count is %d after decrementing", cnt));
+ debug("data",
+ String.format(Locale.ENGLISH, "background task count is %d after decrementing",
+ cnt));
backgroundTasksRunning.postValue(cnt > 0);
}
public static void setCurrentProfile(MobileLedgerProfile newProfile) {
MLDB.setOption(MLDB.OPT_PROFILE_UUID, newProfile.getUuid());
- profile.set(newProfile);
+ stopTransactionsRetrieval();
+ profile.postValue(newProfile);
}
public static int getProfileIndex(MobileLedgerProfile profile) {
- try (LockHolder lh = profiles.lockForReading()) {
- for (int i = 0; i < profiles.size(); i++) {
- MobileLedgerProfile p = profiles.get(i);
+ try (LockHolder ignored = profilesLocker.lockForReading()) {
+ List<MobileLedgerProfile> prList = profiles.getValue();
+ assert prList != null;
+ for (int i = 0; i < prList.size(); i++) {
+ MobileLedgerProfile p = prList.get(i);
if (p.equals(profile)) return i;
}
return -1;
}
}
+ @SuppressWarnings("WeakerAccess")
public static int getProfileIndex(String profileUUID) {
- try (LockHolder lh = profiles.lockForReading()) {
- for (int i = 0; i < profiles.size(); i++) {
- MobileLedgerProfile p = profiles.get(i);
+ try (LockHolder ignored = profilesLocker.lockForReading()) {
+ List<MobileLedgerProfile> prList = profiles.getValue();
+ assert prList != null;
+ for (int i = 0; i < prList.size(); i++) {
+ MobileLedgerProfile p = prList.get(i);
if (p.getUuid().equals(profileUUID)) return i;
}
if (profileUUID == null) return -1;
SQLiteDatabase db = MLDB.getDatabase();
- try(Cursor c = db.rawQuery("SELECT theme from profiles where uuid=?", new String[]{profileUUID})) {
+ try (Cursor c = db
+ .rawQuery("SELECT theme from profiles where uuid=?", new String[]{profileUUID}))
+ {
if (c.moveToNext()) return c.getInt(0);
}
}
public static MobileLedgerProfile getProfile(String profileUUID) {
MobileLedgerProfile profile;
- if (profiles.isEmpty()) {
- profile = MobileLedgerProfile.loadAllFromDB(profileUUID);
- }
- else {
- try (LockHolder lh = profiles.lockForReading()) {
+ try (LockHolder readLock = profilesLocker.lockForReading()) {
+ List<MobileLedgerProfile> prList = profiles.getValue();
+ assert prList != null;
+ if (prList.isEmpty()) {
+ readLock.close();
+ try (LockHolder ignored = profilesLocker.lockForWriting()) {
+ profile = MobileLedgerProfile.loadAllFromDB(profileUUID);
+ }
+ }
+ else {
int i = getProfileIndex(profileUUID);
if (i == -1) i = 0;
- profile = profiles.get(i);
+ profile = prList.get(i);
}
}
return profile;
}
+ public synchronized static void scheduleTransactionListRetrieval(MainActivity activity) {
+ if (retrieveTransactionsTask != null) {
+ Logger.debug("db", "Ignoring request for transaction retrieval - already active");
+ return;
+ }
+ retrieveTransactionsTask =
+ new RetrieveTransactionsTask(new WeakReference<>(activity), profile.getValue());
+ Logger.debug("db", "Created a background transaction retrieval task");
+
+ retrieveTransactionsTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+ }
+ public static synchronized void stopTransactionsRetrieval() {
+ if (retrieveTransactionsTask != null) retrieveTransactionsTask.cancel(false);
+ }
+ public static void transactionRetrievalDone() {
+ retrieveTransactionsTask = null;
+ }
}