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Switching to lazy database for history

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This commit is contained in:
anthony restaino 2017-05-13 10:42:47 -04:00
parent 0823f41188
commit ca8024d04d
2 changed files with 14 additions and 31 deletions
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5
app/src/main/java/acr/browser/lightning/database/bookmark/BookmarkDatabase.java
View File

@ -8,6 +8,7 @@ import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.annotation.WorkerThread;
import android.text.TextUtils;
import com.anthonycr.bonsai.Completable;
@ -56,7 +57,6 @@ public class BookmarkDatabase extends SQLiteOpenHelper implements BookmarkModel
private static final String KEY_FOLDER = "folder";
private static final String KEY_POSITION = "position";
@NonNull private final String DEFAULT_BOOKMARK_TITLE;
@Nullable private SQLiteDatabase mDatabase;
@ -73,9 +73,10 @@ public class BookmarkDatabase extends SQLiteOpenHelper implements BookmarkModel
*
* @return a non null writable database.
*/
@WorkerThread
@NonNull
private SQLiteDatabase lazyDatabase() {
if (mDatabase == null) {
if (mDatabase == null || !mDatabase.isOpen()) {
mDatabase = getWritableDatabase();
}

40
app/src/main/java/acr/browser/lightning/database/history/HistoryDatabase.java
View File

@ -68,15 +68,6 @@ public class HistoryDatabase extends SQLiteOpenHelper {
onCreate(db);
}
@Override
public synchronized void close() {
if (mDatabase != null) {
mDatabase.close();
mDatabase = null;
}
super.close();
}
@NonNull
private static HistoryItem fromCursor(@NonNull Cursor cursor) {
HistoryItem historyItem = new HistoryItem();
@ -89,7 +80,7 @@ public class HistoryDatabase extends SQLiteOpenHelper {
@WorkerThread
@NonNull
private SQLiteDatabase openIfNecessary() {
private SQLiteDatabase lazyDatabase() {
if (mDatabase == null || !mDatabase.isOpen()) {
mDatabase = this.getWritableDatabase();
}
@ -98,30 +89,26 @@ public class HistoryDatabase extends SQLiteOpenHelper {
@WorkerThread
synchronized void deleteHistory() {
mDatabase = openIfNecessary();
mDatabase.delete(TABLE_HISTORY, null, null);
mDatabase.close();
mDatabase = this.getWritableDatabase();
lazyDatabase().delete(TABLE_HISTORY, null, null);
lazyDatabase().close();
}
@WorkerThread
synchronized void deleteHistoryItem(@NonNull String url) {
mDatabase = openIfNecessary();
mDatabase.delete(TABLE_HISTORY, KEY_URL + " = ?", new String[]{url});
lazyDatabase().delete(TABLE_HISTORY, KEY_URL + " = ?", new String[]{url});
}
@WorkerThread
synchronized void visitHistoryItem(@NonNull String url, @Nullable String title) {
mDatabase = openIfNecessary();
ContentValues values = new ContentValues();
values.put(KEY_TITLE, title == null ? "" : title);
values.put(KEY_TIME_VISITED, System.currentTimeMillis());
Cursor cursor = mDatabase.query(false, TABLE_HISTORY, new String[]{KEY_URL},
Cursor cursor = lazyDatabase().query(false, TABLE_HISTORY, new String[]{KEY_URL},
KEY_URL + " = ?", new String[]{url}, null, null, null, "1");
if (cursor.getCount() > 0) {
mDatabase.update(TABLE_HISTORY, values, KEY_URL + " = ?", new String[]{url});
lazyDatabase().update(TABLE_HISTORY, values, KEY_URL + " = ?", new String[]{url});
} else {
addHistoryItem(new HistoryItem(url, title == null ? "" : title));
}
@ -131,19 +118,17 @@ public class HistoryDatabase extends SQLiteOpenHelper {
@WorkerThread
private synchronized void addHistoryItem(@NonNull HistoryItem item) {
mDatabase = openIfNecessary();
ContentValues values = new ContentValues();
values.put(KEY_URL, item.getUrl());
values.put(KEY_TITLE, item.getTitle());
values.put(KEY_TIME_VISITED, System.currentTimeMillis());
mDatabase.insert(TABLE_HISTORY, null, values);
lazyDatabase().insert(TABLE_HISTORY, null, values);
}
@WorkerThread
@Nullable
synchronized String getHistoryItem(@NonNull String url) {
mDatabase = openIfNecessary();
Cursor cursor = mDatabase.query(TABLE_HISTORY, new String[]{KEY_ID, KEY_URL, KEY_TITLE},
Cursor cursor = lazyDatabase().query(TABLE_HISTORY, new String[]{KEY_ID, KEY_URL, KEY_TITLE},
KEY_URL + " = ?", new String[]{url}, null, null, null, "1");
String m = null;
if (cursor != null) {
@ -158,7 +143,6 @@ public class HistoryDatabase extends SQLiteOpenHelper {
@WorkerThread
@NonNull
synchronized List<HistoryItem> findItemsContaining(@Nullable String search) {
mDatabase = openIfNecessary();
List<HistoryItem> itemList = new ArrayList<>(5);
if (search == null) {
return itemList;
@ -166,7 +150,7 @@ public class HistoryDatabase extends SQLiteOpenHelper {
search = '%' + search + '%';
Cursor cursor = mDatabase.query(TABLE_HISTORY, null, KEY_TITLE + " LIKE ? OR " + KEY_URL + " LIKE ?",
Cursor cursor = lazyDatabase().query(TABLE_HISTORY, null, KEY_TITLE + " LIKE ? OR " + KEY_URL + " LIKE ?",
new String[]{search, search}, null, null, KEY_TIME_VISITED + " DESC", "5");
while (cursor.moveToNext()) {
@ -181,9 +165,8 @@ public class HistoryDatabase extends SQLiteOpenHelper {
@WorkerThread
@NonNull
synchronized List<HistoryItem> getLastHundredItems() {
mDatabase = openIfNecessary();
List<HistoryItem> itemList = new ArrayList<>(100);
Cursor cursor = mDatabase.query(TABLE_HISTORY, null, null, null, null, null, KEY_TIME_VISITED + " DESC", "100");
Cursor cursor = lazyDatabase().query(TABLE_HISTORY, null, null, null, null, null, KEY_TIME_VISITED + " DESC", "100");
while (cursor.moveToNext()) {
itemList.add(fromCursor(cursor));
@ -197,10 +180,9 @@ public class HistoryDatabase extends SQLiteOpenHelper {
@WorkerThread
@NonNull
synchronized List<HistoryItem> getAllHistoryItems() {
mDatabase = openIfNecessary();
List<HistoryItem> itemList = new ArrayList<>();
Cursor cursor = mDatabase.query(TABLE_HISTORY, null, null, null, null, null, KEY_TIME_VISITED + " DESC");
Cursor cursor = lazyDatabase().query(TABLE_HISTORY, null, null, null, null, null, KEY_TIME_VISITED + " DESC");
while (cursor.moveToNext()) {
itemList.add(fromCursor(cursor));