I have been creating a Dictionary App i have all words saved in the .csv file
when app is run First Time, this method should save all the words to realm db but saving only few.
Task java.util.concurrent.FutureTask@286858df rejected from io.realm.internal.async.RealmThreadPoolExecutor@273caff5[Running, pool size = 13, active threads = 13, queued tasks = 100, completed tasks = 1]
realm = Realm.getDefaultInstance();
//adding to db satrt
if (!(realm.isEmpty())) {
Log.v("DB","already there!!");
} else {
Log.v("DB","Not Found!!");
String csvFile = "longevity.csv";
BufferedReader br = null;
String line = "";
String cvsSplitBy = ",";
try {
br = new BufferedReader(new InputStreamReader(getAssets().open(csvFile)));
while ((line = br.readLine()) != null) {
// use comma as separator
final String[] oneWord= line.split(cvsSplitBy);
realm.executeTransactionAsync(new Realm.Transaction() {
@Override
public void execute(Realm bgRealm) {
Word user = bgRealm.createObject(Word.class);
user.setWord(oneWord[1]);
user.setMeaning(oneWord[2]);
user.setSynonyms(oneWord[3]);
}
}, new Realm.Transaction.OnSuccess() {
@Override
public void onSuccess() {
Log.v("TAGGED","SAVED");
}
}, new Realm.Transaction.OnError() {
@Override
public void onError(Throwable error) {
Log.v("TAGGED","FAILED");
}
});
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
is there A Better way to ship prepopulated Relam dataBase with android, i have 146800 words to be saved to db when app is run First Time, this method saving only few words then giving error show above!
Use 1 transaction instead of 146800 transactions. Also consider using 1 instance to save your Realm object, instead of creating 146800 objects.
realm.executeTransactionAsync(new Realm.Transaction() {
@Override
public void execute(Realm bgRealm) {
String csvFile = "longevity.csv";
BufferedReader br = null;
String line = "";
String cvsSplitBy = ",";
try {
br = new BufferedReader(new InputStreamReader(getAssets().open(csvFile)));
Word user = new Word();
while((line = br.readLine()) != null) {
// use comma as separator
final String[] oneWord = line.split(cvsSplitBy);
user.setWord(oneWord[1]);
user.setMeaning(oneWord[2]);
user.setSynonyms(oneWord[3]);
bgRealm.insert(user);
}
} catch(Throwable e) {
e.printStackTrace();
throw e;
} finally {
if(br != null) {
try {
br.close();
} catch(IOException e) {
e.printStackTrace();
}
}
}
}
}, new Realm.Transaction.OnSuccess() {
@Override
public void onSuccess() {
Log.v("TAGGED", "SAVED");
}
}, new Realm.Transaction.OnError() {
@Override
public void onError(Throwable error) {
Log.v("TAGGED", "FAILED");
}
});
EDIT: You should consider using a CSV parser library, because String.split()
is memory-intensive.
Instead of
while ((line = br.readLine()) != null) {
Consider this
final CSVParser parser = new CSVParser(reader, CSVFormat.EXCEL.withHeader());
for (final CSVRecord record : parser) {
...