Example usage for com.mongodb DBCursor close

Introduction

In this page you can find the example usage for com.mongodb DBCursor close.

Prototype

@Override
    public void close() 

Source Link

Usage

From source file:org.jenkinsci.plugins.compatibilityaction.MongoProviderImpl.java

public <T> List<T> readMany(BasicDBObject query, Class<T> clazz) throws CompatibilityDataException {
    List<T> list = new ArrayList<T>();
    org.mongojack.DBCursor cursor = null;
    MongoClient client = null;//w  w  w . j ava 2 s. c  o  m
    try {
        client = getService().createClient();
        JacksonDBCollection coll = JacksonDBCollection.wrap(client.getDB(database).getCollection(collection),
                clazz);
        cursor = coll.find(query);
        while (cursor.hasNext()) {
            list.add((T) cursor.next());
        }
    } catch (Exception ex) {
        throw new CompatibilityDataException(String.format("Failed to fetch object with query %s", query), ex);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
        if (client != null) {
            client.close();
        }
    }
    return list;
}

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From source file:org.jenkinsci.plugins.compatibilityaction.MongoProviderImpl.java

public List<DBObject> listAndSort(DBObject query, BasicDBObject sorter) throws CompatibilityDataException {
    List<DBObject> objects = new ArrayList<DBObject>();

    DBCursor cursor = null;
    MongoClient client = null;/* ww w  .  ja  v  a2 s  .  c  om*/
    try {
        client = getService().createClient();
        cursor = client.getDB(database).getCollection(collection).find(query).sort(sorter);
        while (cursor.hasNext()) {
            objects.add(cursor.next());
        }
    } catch (Exception ex) {
        throw new CompatibilityDataException(
                String.format("(Unknown Host) Failed to fetch object with query %s", query), ex);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
        if (client != null) {
            client.close();
        }
    }
    return objects;
}

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From source file:org.keycloak.connections.mongo.updater.impl.updates.Update1_7_0.java

License:Apache License

@Override
public void update(KeycloakSession session) throws ClassNotFoundException {
    DBCollection clients = db.getCollection("clients");
    DBCursor clientsCursor = clients.find();

    try {/*from   w  ww .j av a2 s.  co  m*/
        while (clientsCursor.hasNext()) {
            BasicDBObject client = (BasicDBObject) clientsCursor.next();

            boolean directGrantsOnly = client.getBoolean("directGrantsOnly", false);
            client.append("standardFlowEnabled", !directGrantsOnly);
            client.append("implicitFlowEnabled", false);
            client.append("directAccessGrantsEnabled", directGrantsOnly);
            client.removeField("directGrantsOnly");

            clients.save(client);
        }
    } finally {
        clientsCursor.close();
    }
}

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From source file:org.mandar.analysis.recsys2014.recsysMain.java

License:Open Source License

public void run() {
    // We first need to configure the data access.
    LenskitConfiguration dataConfig = this.configureDAO(DBSettings.TRAINING_COLLECTION);
    // Now we create the LensKit configuration...
    LenskitConfiguration config = new LenskitConfiguration();
    if (algo.equals("svd")) {
        config = this.configureSVDRecommender(numFeatures, numIterations, regularizationParam,
                stoppingCondition, threshold);
    } else if (algo.equals("ii")) {
        config = this.configureIIRecommender(numNeighbours, similarityModel);
    } else if (algo.equals("uu")) {
        config = this.configureUURecommender(numNeighbours);
    } else if (algo.equals("so")) {
        config = this.configureSORecommender(damping);
    } else if (algo.equals("tfidf")) {
        config = this.configureTFIDFRecommender();
    }/*from w ww.ja va2  s .c om*/

    // There are more parameters, roles, and components that can be set. See the
    // JavaDoc for each recommender algorithm for more information.
    // Now that we have a factory, build a recommender from the configuration
    // and data source. This will compute the similarity matrix and return a recommender
    // that uses it.
    LenskitRecommender rec = null;
    try {
        LenskitRecommenderEngine engine = LenskitRecommenderEngine.newBuilder().addConfiguration(config)
                .addConfiguration(dataConfig).build();
        rec = engine.createRecommender(dataConfig);

    } catch (RecommenderBuildException e) {
        e.printStackTrace();
        System.exit(1);
    }
    // we want to recommend items
    if ("training".equals(this.goal)) {
        ItemRecommender irec = rec.getItemRecommender();
        assert irec != null; // not null because we configured one
        // for users
        try {
            MongoClient mongoClient = new MongoClient(DBSettings.DBHOST);
            DB db = mongoClient.getDB(DBSettings.DATABASE);
            DBCollection collection = db.getCollection(DBSettings.MOVIES_COLLECTION);
            for (long user : users) {
                // get 10 recommendation for the user
                List<ScoredId> recs = irec.recommend(user, 10);
                System.out.format("Recommendations for %d:\n", user);
                for (ScoredId item : recs) {
                    DBObject obj = collection.findOne(new BasicDBObject(DBSettings.FIELDS.movie, item.getId()));
                    String recTitle = obj.get("title").toString();
                    String recDirector = obj.get("director").toString();
                    String recRel = obj.get("release_date").toString();
                    String recStars = obj.get("stars").toString();

                    System.out.format("\tID:%d, %s, %s Directed By: %s Starring: %s\n", item.getId(), recTitle,
                            recRel, recDirector, recStars);
                }
            }
            mongoClient.close();
        } catch (UnknownHostException u) {
            u.printStackTrace();
        }
    } else if ("eval".equals(this.goal)) {
        //ItemScorer iscorer = rec.getItemScorer();
        RatingPredictor rat = rec.getRatingPredictor();
        File outFile = new File("data/participant_solution_" + algo + ".dat");
        String line = "";
        //String cvsSplitBy = ",";
        long eng = 0;
        int count = 0;
        try {
            long lines = Utils.countLines("data/test_solution.dat");
            //outFile.delete();
            BufferedWriter brout = new BufferedWriter((new FileWriter(outFile, false)));
            //BufferedReader br = new BufferedReader(new FileReader(csvData));
            long progress = 0;
            //br.readLine();
            System.out.println(
                    "Reading from Test Set and writing result " + "data/participant_solution_" + algo + ".dat");

            MongoClient mongoClient = new MongoClient(DBSettings.DBHOST);
            DB db = mongoClient.getDB(DBSettings.DATABASE);
            DBCollection collection = db.getCollection(DBSettings.TEST_COLLECTION_EMPTY);
            DBCursor cur = collection.find();

            ArrayList<DBObject> arr = new ArrayList<DBObject>(cur.size());

            System.out.println("Making ObjectArrayList out of test collection result");
            while (cur.hasNext()) {
                DBObject buff = cur.next();
                eng = (long) Math.abs(rat.predict(Long.parseLong(buff.get("uID").toString()),
                        Long.parseLong(buff.get("movieID").toString())));
                buff.put("engagement", eng);
                arr.add(buff);
                count++;
            }

            cur.close();
            //Now sort this by uID (desc), engagement (desc) and tweetID (desc)
            System.out.println("Sorting ObjectArrayList");
            Collections.sort(arr, new MongoComparator());
            for (int i = 0; i < arr.size(); i++) {
                brout.write(arr.get(i).get("uID") + "," + arr.get(i).get("tweetID") + ","
                        + arr.get(i).get("engagement"));
                brout.newLine();
                progress++;
                if ((progress * 100 / lines) % 10 >= 0 && (progress * 100 / lines) % 10 <= 1) {
                    System.out.println("File write Progress: " + (progress * 100 / lines) + " %");
                }
            }
            brout.close();

            ProcessBuilder pbr = new ProcessBuilder("java", "-jar",
                    "rscevaluator-0.1-jar-with-dependencies.jar", "data/test_solution.dat",
                    "data/participant_solution_" + algo + ".dat");
            Process p = pbr.start();

            BufferedReader is = new BufferedReader(new InputStreamReader(p.getInputStream()));
            double resultbuff = 0.0d;
            while ((line = is.readLine()) != null) {
                if (line.contains("nDCG@10:")) {
                    resultbuff = Double.parseDouble(line.substring(9));
                }
                System.out.println(line);
            }
            System.out.println("Writing evaluation results to MongoDB");
            this.writeAlgoTestResults(resultbuff, db);
            mongoClient.close();
            p.waitFor();

        } catch (FileNotFoundException f) {
            f.printStackTrace();
        } catch (IOException f) {
            f.printStackTrace();
        } catch (InterruptedException i) {
            i.printStackTrace();
        } catch (NullPointerException n) {
            n.printStackTrace();
        }
    }
}

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From source file:org.mongolink.domain.query.QueryExecutor.java

License:Open Source License

public List<T> execute(DBObject query, CursorParameter cursorParameter) {
    final List<T> result = Lists.newArrayList();
    DBCollection collection = db.getCollection(mapper.collectionName());
    DBCursor cursor = collection.find(query);
    cursor = cursorParameter.apply(cursor);
    try {//from  w ww.  j  a v  a 2s .c  o m
        while (cursor.hasNext()) {
            result.add(loadEntity(cursor.next()));
        }
        return result;
    } finally {
        cursor.close();
    }
}

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From source file:org.mongoste.core.impl.mongodb.MongoUtil.java

License:Open Source License

public static void close(DBCursor dbc) {
    if (dbc != null) {
        dbc.close();
    }
}

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From source file:org.onebusaway.gtfs_realtime.producer_demo.GtfsRealtimeProviderImpl.java

License:Apache License

/**
 * @return a DBObject array of recent entries in MongoDB collection.
 *//*from   w ww .ja v a 2  s  .c  o  m*/
private ArrayList<DBObject> downloadLocations() throws IOException {
    // get list of distinct bus ids:
    // _log.info("getting distinct bus IDs");
    // List busIDs = _coll.distinct("entity.id");
    // _log.info("success: bus IDs");
    // System.out.println(busIDs);

    ArrayList<DBObject> myList = new ArrayList<DBObject>();
    ArrayList<Object> busIDs = locationList.getBusIDs();

    // Loop over bus ids; get most recent timestamp for each
    for (Object busID : busIDs) {
        ArrayList queryList = new ArrayList();
        // most recent timestamp:
        queryList.add(new BasicDBObject("entity.vehicle.timestamp", new BasicDBObject("$gt", _currtime)));

        // match on bus ID:
        queryList.add(new BasicDBObject("entity.id", busID.toString()));

        // build full query
        BasicDBObject query = new BasicDBObject("$and", queryList);

        _log.info("query on busID " + busID.toString());
        DBCursor cursor2 = _coll.find(query).sort(new BasicDBObject("entity.vehicle.timestamp", -1)).limit(1);

        try {
            while (cursor2.hasNext()) {
                DBObject myDoc = cursor2.next();
                myList.add(myDoc);
            }
        } finally {
            cursor2.close();
        }

    }

    return myList;
}

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From source file:org.onebusaway.gtfs_realtime.trip_updates.GtfsRealtimeProviderImpl.java

License:Apache License

/**
 * @return a DBObject array of recent entries in MongoDB collection.
 *//*  www.j  ava  2 s .c om*/
private ArrayList<DBObject> downloadUpdates() throws IOException {
    // get list of distinct bus ids:
    // _log.info("getting distinct bus IDs");
    // List busIDs = _locationsColl.distinct("entity.id");
    // _log.info("success: bus IDs");
    // System.out.println(busIDs);

    ArrayList<DBObject> myList = new ArrayList<DBObject>();
    ArrayList<Object> busIDs = updateList.getBusIDs();

    // Loop over bus ids; get most recent timestamp for each
    for (Object busID : busIDs) {
        List<BasicDBObject> queryList = new ArrayList<BasicDBObject>();

        // match on bus ID:
        queryList.add(new BasicDBObject("device_id", busID.toString()));

        // look for departures only:
        queryList.add(new BasicDBObject("type", 1));

        // build full query
        BasicDBObject query = new BasicDBObject("$and", queryList);

        _log.info("query on busID " + busID.toString());
        DBCursor cursor2 = _coll.find(query).sort(new BasicDBObject("time", -1)).limit(1);

        try {
            while (cursor2.hasNext()) {
                DBObject myDoc = cursor2.next();
                myList.add(myDoc);
            }
        } finally {
            cursor2.close();
        }

    }

    return myList;
}

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From source file:org.opencb.cellbase.mongodb.db.ExonMongoDBAdaptor.java

License:Apache License

private List<Gene> executeQuery(DBObject query, List<String> excludeFields) {
    List<Gene> result = null;

    DBCursor cursor = null;
    if (excludeFields != null && excludeFields.size() > 0) {
        BasicDBObject returnFields = new BasicDBObject("_id", 0);
        for (String field : excludeFields) {
            returnFields.put(field, 0);/*from   w ww  . ja va  2  s.  co m*/
        }
        cursor = mongoDBCollection.find(query, returnFields);
    } else {
        cursor = mongoDBCollection.find(query);
    }

    try {
        if (cursor != null) {
            result = new ArrayList<Gene>(cursor.size());
            //                Gson jsonObjectMapper = new Gson();
            Gene gene = null;
            while (cursor.hasNext()) {
                //                    gene = (Gene) jsonObjectMapper.fromJson(cursor.next().toString(), Gene.class);
                result.add(gene);
            }
        }
    } finally {
        cursor.close();
    }
    return result;
}

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From source file:org.opencb.cellbase.mongodb.db.network.PathwayMongoDBAdaptor.java

License:Apache License

@Override
public String getPathways() {
    BasicDBObject query = new BasicDBObject();

    BasicDBObject returnFields = new BasicDBObject();
    returnFields.put("_id", 0);
    returnFields.put("name", 1);
    returnFields.put("displayName", 1);
    returnFields.put("subPathways", 1);
    returnFields.put("parentPathway", 1);

    BasicDBObject orderBy = new BasicDBObject();
    orderBy.put("name", 1);

    DBCursor cursor = coll.find(query, returnFields).sort(orderBy);
    String result = cursor.toArray().toString();
    cursor.close();

    return result;
}

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