@Override
public Uri insert(Uri uri, ContentValues values) {
final SQLiteDatabase db = dbHelper.getWritableDatabase();
final int match = uriMatcher.match(uri);
Uri returnUri;
switch (match) {
case QUEUE:
{
long _id = db.replace(AlexandriaContract.QueueEntry.TABLE_NAME, null, values);
if (_id > 0) {
returnUri = AlexandriaContract.QueueEntry.CONTENT_URI;
} else {
throw new android.database.SQLException("Failed to insert row into " + uri);
}
break;
}
case BOOK:
{
long _id = db.insert(AlexandriaContract.BookEntry.TABLE_NAME, null, values);
if (_id > 0) {
db.delete(
AlexandriaContract.QueueEntry.TABLE_NAME,
AlexandriaContract.QueueEntry._ID + " = '" + Long.toString(_id) + "'",
null);
returnUri = AlexandriaContract.BookEntry.buildBookUri(_id);
} else {
throw new android.database.SQLException("Failed to insert row into " + uri);
}
getContext()
.getContentResolver()
.notifyChange(AlexandriaContract.BookEntry.buildFullBookUri(_id), null);
getContext()
.getContentResolver()
.notifyChange(AlexandriaContract.BookEntry.CONTENT_URI, null);
break;
}
case AUTHOR:
{
long _id = db.insert(AlexandriaContract.AuthorEntry.TABLE_NAME, null, values);
if (_id > 0)
returnUri = AlexandriaContract.AuthorEntry.buildAuthorUri(values.getAsLong("_id"));
else throw new android.database.SQLException("Failed to insert row into " + uri);
break;
}
case CATEGORY:
{
long _id = db.insert(AlexandriaContract.CategoryEntry.TABLE_NAME, null, values);
if (_id > 0)
returnUri = AlexandriaContract.CategoryEntry.buildCategoryUri(values.getAsLong("_id"));
else throw new android.database.SQLException("Failed to insert row into " + uri);
break;
}
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
return returnUri;
}
@Override
public android.support.v4.content.Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new CursorLoader(
getActivity(),
AlexandriaContract.BookEntry.buildFullBookUri(Long.parseLong(ean)),
null,
null,
null,
null);
}
/** Handle action Foo in the provided background thread with the provided parameters. */
private void deleteBook(String ean) {
if (!TextUtils.isEmpty(ean)) {
long bookId = -1;
try {
bookId = Long.parseLong(ean);
} catch (NumberFormatException e) {
// No valid bookId, abort
return;
}
getContentResolver()
.delete(AlexandriaContract.BookEntry.buildBookUri(Long.parseLong(ean)), null, null);
}
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
if (eanEditText.getText().length() == 0) {
return null;
}
String eanStr = eanEditText.getText().toString();
if (eanStr.length() == 10 && !eanStr.startsWith("978")) {
eanStr = "978" + eanStr;
}
return new CursorLoader(
getActivity(),
AlexandriaContract.BookEntry.buildFullBookUri(Long.parseLong(eanStr)),
null,
null,
null,
null);
}
/** Handle action fetchBook in the provided background thread with the provided parameters. */
private void fetchBook(String ean) {
if (ean == null || ean.length() != 13) {
return;
}
Cursor bookEntry =
getContentResolver()
.query(
AlexandriaContract.BookEntry.buildBookUri(Long.parseLong(ean)),
null, // leaving "columns" null just returns all the columns.
null, // cols for "where" clause
null, // values for "where" clause
null // sort order
);
if (bookEntry.getCount() > 0) {
bookEntry.close();
return;
}
bookEntry.close();
HttpURLConnection urlConnection = null;
BufferedReader reader = null;
String bookJsonString = null;
try {
final String FORECAST_BASE_URL = "https://www.googleapis.com/books/v1/volumes?";
final String QUERY_PARAM = "q";
final String ISBN_PARAM = "isbn:" + ean;
Uri builtUri =
Uri.parse(FORECAST_BASE_URL)
.buildUpon()
.appendQueryParameter(QUERY_PARAM, ISBN_PARAM)
.build();
URL url = new URL(builtUri.toString());
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.connect();
InputStream inputStream = urlConnection.getInputStream();
StringBuffer buffer = new StringBuffer();
if (inputStream == null) {
return;
}
reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
buffer.append(line);
buffer.append("\n");
}
if (buffer.length() == 0) {
return;
}
bookJsonString = buffer.toString();
} catch (Exception e) {
Log.e(LOG_TAG, "Error ", e);
} finally {
if (urlConnection != null) {
urlConnection.disconnect();
}
if (reader != null) {
try {
reader.close();
} catch (final IOException e) {
Log.e(LOG_TAG, "Error closing stream", e);
}
}
}
final String ITEMS = "items";
final String VOLUME_INFO = "volumeInfo";
final String TITLE = "title";
final String SUBTITLE = "subtitle";
final String AUTHORS = "authors";
final String DESC = "description";
final String CATEGORIES = "categories";
final String IMG_URL_PATH = "imageLinks";
final String IMG_URL = "thumbnail";
try {
JSONObject bookJson = new JSONObject(bookJsonString);
JSONArray bookArray;
if (bookJson.has(ITEMS)) {
bookArray = bookJson.getJSONArray(ITEMS);
} else {
Intent messageIntent = new Intent(MainActivity.MESSAGE_EVENT);
messageIntent.putExtra(
MainActivity.MESSAGE_KEY, getResources().getString(R.string.not_found));
LocalBroadcastManager.getInstance(getApplicationContext()).sendBroadcast(messageIntent);
return;
}
JSONObject bookInfo = ((JSONObject) bookArray.get(0)).getJSONObject(VOLUME_INFO);
String title = bookInfo.getString(TITLE);
String subtitle = "";
if (bookInfo.has(SUBTITLE)) {
subtitle = bookInfo.getString(SUBTITLE);
}
String desc = "";
if (bookInfo.has(DESC)) {
desc = bookInfo.getString(DESC);
}
String imgUrl = "";
if (bookInfo.has(IMG_URL_PATH) && bookInfo.getJSONObject(IMG_URL_PATH).has(IMG_URL)) {
imgUrl = bookInfo.getJSONObject(IMG_URL_PATH).getString(IMG_URL);
}
writeBackBook(ean, title, subtitle, desc, imgUrl);
if (bookInfo.has(AUTHORS)) {
writeBackAuthors(ean, bookInfo.getJSONArray(AUTHORS));
}
if (bookInfo.has(CATEGORIES)) {
writeBackCategories(ean, bookInfo.getJSONArray(CATEGORIES));
}
} catch (JSONException e) {
Log.e(LOG_TAG, "Error ", e);
}
}
/** Handle action Foo in the provided background thread with the provided parameters. */
private void deleteBook(String ean) {
if (ean != null) {
getContentResolver()
.delete(AlexandriaContract.BookEntry.buildBookUri(Long.parseLong(ean)), null, null);
}
}