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MongoDB "Invalid BSON Field Name"

I know that there's probably a better way to do this however I'm completely stumped. I'm writing a Discord bot in which a user is able to add points to other users, however I can't figure out how to replace a user's "points". My code is as follows:
BasicDBObject cursor = new BasicDBObject();
cursor.put(user.getAsMember().getId(), getMongoPoints(user.getAsMember()));
if(cursor.containsKey(user.getAsMember().getId())) {
Document old = new Document(user.getAsMember().getId(), getMongoPoints(user.getAsMember()));
Document doc = new Document(user.getAsMember().getId(), getMongoPoints(user.getAsMember()) + Integer.parseInt(amount.getAsString()));
collection.findOneAndUpdate(old, doc);
}
My getMongoPoints function:
public static int getMongoPoints(Member m) {
ConnectionString connectionString = new ConnectionString("database");
MongoClientSettings settings = MongoClientSettings.builder()
.applyConnectionString(connectionString)
.build();
MongoClient mongoClient = MongoClients.create(settings);
MongoDatabase database = mongoClient.getDatabase("SRU");
MongoCollection<Document> collection = database.getCollection("points");
DistinctIterable<Integer> docs = collection.distinct(m.getId(), Integer.class);
MongoCursor<Integer> result = docs.iterator();
return result.next();
}
I've tried findOneAndReplace, however that simply makes a new entry without deleting the old one. The error I receive is: Invalid BSON field name 262014495440896000
Everything else works, include writing to the database itself which is why I'm stumped. Any help would be greatly appreciated and I apologize if this is written poorly.

BSON field names must be string. From the spec:
Zero or more modified UTF-8 encoded characters followed by '\x00'. The (byte*) MUST NOT contain '\x00', hence it is not full UTF-8.
To use 262014495440896000 as a field name, convert it to string first.

Is there any way to update/replace whole document of mongoDB from java using mongoDB morphia?

I need to replace a whole existing document of mongodb from java instead of setting every field.Is there any way? I am using mongo morphia.
Right now i am setting fields one by one ,following is code :
DBObject searchObject =new BasicDBObject();
searchObject.put("procId", procId);
final UpdateOperations<Timesheet> updateOperations = ds.createUpdateOperations(Timesheet.class)
.set("wheelInTime", timesheet.getWheelInTime())
.set("wheelOutTime", timesheet.getWheelOutTime())
.set("tableOnTime", timesheet.getTableOnTime())
.set("tableOffTime", timesheet.getTableOffTime())
final UpdateResults results = ds.updateFirst(findQuery,updateOperations);

You can 'overwrite' any entry in a MongoDB collection but simply creating a new DbObject with the same _id field and saving it to the database. So just set the fields in your object as you would any Java object and use myCollection.save(obj)

Just save the object and it will overwrite the document with the same #id. This can be done with one line of code:
dao.save(timesheet);
More complete example code of the usage of the Morphia DAO:
class Dao extends BasicDAO<TimeSheet, String> {
Dao(Datastore ds) {
super(TimeSheet.class, ds);
}
}
Datastore ds = morphia.createDatastore(mongoClient, DB_NAME);
Dao dao = new Dao(ds);
dao.save(timesheet);

creating unique index in mongoDB

I am using a java program for mongo db insertion trying to create a unique index for a field. product_src is a field in my collection and I want to set it as unique index for avoiding the duplicate insertion. I am trying the following code but showing syntax error what is the problem with this.
DB db;
try {
sample = new MongoClient("myIP",PORT);
db = sample.getDB("client_mahout");
t = db.getCollection("data_flipkart_in_avoid_duplicate_checking");
System.out.println("enter the system ip");
db.t.ensureIndex({"product_src":1});
} catch (Exception e) {}
t is the collection. there is problem with line db.t.ensureIndex({"product_src":1});
Please give me a sample code how to create unique index in mongo DB

For future reference, the way to handle this in the Java Mongo driver v3.0+ is by:
public void createUniqueIndex() {
Document index = new Document("field", 1);
MongoCollection<Document> collection = client.getDatabase("db").getCollection("Collection");
collection.createIndex(index, new IndexOptions().unique(true));
}

You need to pass a DBObject to the ensureIndex() method.
db.t.ensureIndex(new BasicDBObject("product_src",1))
But, the ensureIndex method has been deprecated since version 2.12, you need to use createIndex() instead.
db.t.createIndex(new BasicDBObject("product_src",1));

Java MongoDB getting value for sub document

I am trying to get the value of a key from a sub-document and I can't seem to figure out how to use the BasicDBObject.get() function since the key is embedded two levels deep. Here is the structure of the document
File {
name: file_1
report: {
name: report_1,
group: RnD
}
}
Basically a file has multiple reports and I need to retrieve the names of all reports in a given file. I am able to do BasicDBObject.get("name") and I can get the value "file_1", but how do I do something like this BasicDBObject.get("report.name")? I tried that but it did not work.

You should first get the "report" object and then access its contents.You can see the sample code in the below.
DBCursor cur = coll.find();
for (DBObject doc : cur) {
String fileName = (String) doc.get("name");
System.out.println(fileName);
DBObject report = (BasicDBObject) doc.get("report");
String reportName = (String) report.get("name");
System.out.println(reportName);
}

I found a second way of doing it, on another post (didnt save the link otherwise I would have included that).
(BasicDBObject)(query.get("report")).getString("name")
where query = (BasicDBObject) cursor.next()

You can also use queries, as in the case of MongoTemplate and so on...
Query query = new Query(Criteria.where("report.name").is("some value"));

You can try this, this worked for me
BasicDBObject query = new BasicDBObject("report.name", "some value");

MongoDB and Java: What's wrong with my update?

I'm using MongoDB with the Java driver and have a Collection 'Questions' with the following format for each entry:
{
"question" : "How are you?",
"category" : "personal",
"isTrain" : true,
"processed" : true
}
What I want to do is take every entry with both "processed" and "isTrain" equal to true, and I want to set their "processed" value to false. The code in which I'm trying to use for this is:
public void markUnprocessed(boolean isTrain) {
BasicDBObject queryObj = new BasicDBObject();
queryObj.put("processed", true);
queryObj.put("isTrain", isTrain);
BasicDBObject updateObj = new BasicDBObject();
updateObj.put("processed", false);
collection.updateMulti(queryObj, updateObj);
}
Calling this function from my code seems to have no effect, and I'm not sure why. Any help on the matter would be greatly appreciated.
Thanks,
Chris Covert

You need to do a partial using $set, not a full update.
With current statement you would be losing all the other fields.
BasicDBObject updateObj = new BasicDBObject();
updateObj.put("$set", new BasicDBObject("processed", false));
Also note that you should turn on safe writes (using WriteConcern.SAFE) so that your app gets notified of any error from server.