Example usage for com.mongodb DBCursor hasNext

List of usage examples for com.mongodb DBCursor hasNext

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Introduction

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

Prototype

@Override
public boolean hasNext()

Source Link

Document

Checks if there is another object available.

Usage

From source file:com.bigdid.model.Revenue_Location.java

public Map<String, Integer> getLocationRevenue() throws UnknownHostException {
    HashMap<String, Integer> locationRevenue = new HashMap<String, Integer>();

    int i = 0;/*from   w  w  w  .  java  2  s . c  o  m*/
    BasicDBObject whereQuery = new BasicDBObject("Order_Value", -1);

    DBCursor obj = coll.find().sort(whereQuery).limit(10);

    while (obj.hasNext()) {
        DBObject dbObj = obj.next();

        locationRevenue.put((String) dbObj.get("Location"), (Integer) dbObj.get("Order_Value"));

    }
    Map<String, Integer> map = sortByValues(locationRevenue);

    return map;
}

From source file:com.bigdid.model.Sentiment_Date_Revised_one.java

public LinkedHashMap<String, int[]> getSentiment() {
    DBCursor obj = coll.find();
    String current_date = "0";
    String prev_date = "0";
    int prev_positive = 0;

    while (obj.hasNext()) {
        DBObject dbObj = obj.next();//from   w ww  .ja v a2  s  . com
        prev_date = current_date;

        current_date = (String) dbObj.get("date").toString().substring(4, 10) + " "
                + (String) dbObj.get("date").toString().substring(24);

        int[] count = new int[3];

        if (prev_date.equals(current_date)) { //current day is previous day so negative sentiment for sure
            count[0] = (Integer) dbObj.get("order_count");
            count[1] = prev_positive;
            count[2] = (Integer) dbObj.get("count");

            data.put(current_date, count);

        } else { //new day---- 2 cases positive or negative
            if (dbObj.get("sentiment").equals("positive")) {
                count[0] = (Integer) dbObj.get("order_count");
                count[1] = (Integer) dbObj.get("count");
                count[2] = 0;

                data.put(current_date, count);
                prev_positive = count[1];

            }

            if (dbObj.get("sentiment").equals("negative")) { //first date is negative
                count[0] = (Integer) dbObj.get("order_count");
                count[1] = 0;
                count[2] = (Integer) dbObj.get("count");

                data.put(current_date, count);

            }
        }
    }

    return data;

}

From source file:com.bigdid.model.Sentiment_Month_Revised_one.java

public LinkedHashMap<String, int[]> getSentiment() {
    DBCursor obj = coll.find();
    String current_date = "0";
    String prev_date = "0";
    int prev_positive = 0;
    while (obj.hasNext()) {
        DBObject dbObj = obj.next();/*from  ww w . j  a  va 2  s.co  m*/
        prev_date = current_date;
        current_date = (String) dbObj.get("month");
        int[] count = new int[3];

        if (prev_date.equals(current_date)) { //current day is previous day so negative sentiment for sure
            count[0] = (Integer) dbObj.get("o_count");
            count[1] = prev_positive;
            count[2] = (Integer) dbObj.get("s_count");

            data.put(current_date, count);

        } else { //new day---- 2 cases positive or negative
            if (dbObj.get("sentiment").equals("positive")) {
                count[0] = (Integer) dbObj.get("o_count");
                count[1] = (Integer) dbObj.get("s_count");
                ;
                count[2] = 0;

                data.put(current_date, count);
                prev_positive = count[1];

            }

            if (dbObj.get("sentiment").equals("negative")) { //first date is negative
                count[0] = (Integer) dbObj.get("o_count");
                count[1] = 0;
                count[2] = (Integer) dbObj.get("s_count");

                data.put(current_date, count);

            }
        }
    }

    return data;

}

From source file:com.bigdid.model.Sentiment_Week_Revised_one.java

public LinkedHashMap<String, int[]> getSentiment() {
    DBCursor obj = coll.find();
    String current_date = "0";
    String prev_date = "0";
    int prev_positive = 0;
    while (obj.hasNext()) {
        DBObject dbObj = obj.next();//from  www .j  av  a2  s. co m
        prev_date = current_date;
        current_date = (String) dbObj.get("week");
        int[] count = new int[3];

        if (prev_date.equals(current_date)) { //current day is previous day so negative sentiment for sure
            count[0] = (Integer) dbObj.get("o_count");
            count[1] = prev_positive;
            count[2] = (Integer) dbObj.get("s_count");

            data.put(current_date, count);

        } else { //new day---- 2 cases positive or negative
            if (dbObj.get("sentiment").equals("positive")) {
                count[0] = (Integer) dbObj.get("o_count");
                count[1] = (Integer) dbObj.get("s_count");
                ;
                count[2] = 0;

                data.put(current_date, count);
                prev_positive = count[1];

            }

            if (dbObj.get("sentiment").equals("negative")) { //first date is negative
                count[0] = (Integer) dbObj.get("o_count");
                count[1] = 0;
                count[2] = (Integer) dbObj.get("s_count");

                data.put(current_date, count);

            }
        }
    }

    return data;

}

From source file:com.bigdid.scrap.model.Sentiment_Date.java

public HashMap<String, int[]> getSentiment() {
    DBCursor obj = coll.find();
    int i = 0;//  ww  w .j  ava  2  s  . c  o m

    String current_date = "0";
    String prev_date = "0";
    int[] count = new int[3];
    while (obj.hasNext()) {
        DBObject dbObj = obj.next();
        prev_date = current_date;
        current_date = (String) dbObj.get("date").toString().substring(4, 10) + " "
                + (String) dbObj.get("date").toString().substring(24);
        System.out.println("current date" + current_date);
        System.out.println("previous date :" + prev_date);
        int prev_positive = 0;
        int prev_orderValue = 0;
        String prev_sentiment = "0";

        if (prev_date.equals(current_date)) { //repeat date entry having negative count for sure 
            count[1] = prev_positive;
            count[2] = (Integer) dbObj.get("count");
            count[0] = (Integer) dbObj.get("order_count");
            data.put(current_date, count);
            prev_positive = 0;
            count[0] = 0;
            count[1] = 0;
            count[2] = 0;

        } else { //new date
            if (prev_sentiment.equals("positive") && dbObj.get("sentiment").equals("positive")) {
                count[0] = prev_orderValue;
                count[1] = prev_positive;
                count[2] = 0;
                data.put(prev_date, count);
                count[0] = 0;
                count[1] = 0;
                count[2] = 0;
                prev_sentiment = "0";
            }

            if (dbObj.get("Sentiment").equals("positive")) {
                prev_positive = (Integer) dbObj.get("count");
                prev_orderValue = (Integer) dbObj.get("order_count");
                prev_sentiment = "positive";

            } else { //new date with negative count
                prev_positive = 0;
                count[1] = prev_positive;
                count[2] = (Integer) dbObj.get("count");
                count[0] = (Integer) dbObj.get("order_count");
                data.put(current_date, count);

                count[0] = 0;
                count[1] = 0;
                count[2] = 0;
            }

        }

    }
    return data;

}

From source file:com.bosscs.spark.mongodb.extractor.MongoNativeExtractor.java

License:Apache License

/**
 * Gets shards.//w  w w .j  a  v  a 2s . co m
 *
 * @param collection the collection
 * @return the shards
 */
private Map<String, String[]> getShards(DBCollection collection) {
    DB config = collection.getDB().getSisterDB("config");
    DBCollection configShards = config.getCollection("shards");

    DBCursor cursorShards = configShards.find();

    Map<String, String[]> map = new HashMap<>();
    while (cursorShards.hasNext()) {
        DBObject currentShard = cursorShards.next();
        String currentHost = (String) currentShard.get("host");
        int slashIndex = currentHost.indexOf("/");
        if (slashIndex > 0) {
            map.put((String) currentShard.get(MONGO_DEFAULT_ID),
                    currentHost.substring(slashIndex + 1).split(","));
        }
    }
    return map;
}

From source file:com.bosscs.spark.mongodb.extractor.MongoNativeExtractor.java

License:Apache License

/**
 * Calculates shard chunks./*  w  w  w . j  a v  a  2 s  .  c  o m*/
 *
 * @param collection the collection
 * @return the deep partition [ ]
 */
private HadoopPartition[] calculateShardChunks(DBCollection collection) {

    DBCursor chuncks = getChunks(collection);

    Map<String, String[]> shards = getShards(collection);

    MongoPartition[] deepPartitions = new MongoPartition[chuncks.count()];
    int i = 0;
    boolean keyAssigned = false;
    String key = null;
    while (chuncks.hasNext()) {

        DBObject dbObject = chuncks.next();
        if (!keyAssigned) {
            Set<String> keySet = ((DBObject) dbObject.get("min")).keySet();
            for (String s : keySet) {
                key = s;
                keyAssigned = true;
            }
        }
        deepPartitions[i] = new MongoPartition(
                mongoDeepJobConfig.getRddId(), i, new TokenRange(shards.get(dbObject.get("shard")),
                        ((DBObject) dbObject.get("min")).get(key), ((DBObject) dbObject.get("max")).get(key)),
                key);
        i++;
    }
    List<MongoPartition> mongoPartitions = Arrays.asList(deepPartitions);

    Collections.shuffle(mongoPartitions);
    return mongoPartitions.toArray(new MongoPartition[mongoPartitions.size()]);
}

From source file:com.bugull.mongo.fs.BuguFS.java

License:Apache License

private List<GridFSDBFile> toFileList(DBCursor cursor) {
    List<GridFSDBFile> list = new ArrayList<GridFSDBFile>();
    while (cursor.hasNext()) {
        DBObject dbo = cursor.next();/*w ww .j  av a 2  s .  c  o  m*/
        list.add((GridFSDBFile) dbo);
    }
    cursor.close();
    return list;
}

From source file:com.bugull.mongo.utils.MapperUtil.java

License:Apache License

public static <T> List<T> toList(Class<T> clazz, DBCursor cursor) {
    List<T> list = new ArrayList<T>();
    while (cursor.hasNext()) {
        DBObject dbo = cursor.next();/*w  w  w .ja  v a 2 s . c o m*/
        list.add(fromDBObject(clazz, dbo));
    }
    cursor.close();
    return list;
}

From source file:com.buzz.buzzdata.MongoBuzz.java

private String getBuzz(BasicDBObject query, Double lat, Double lng) {
    String retval = "";
    DBCollection buzzCollection = mongoDB.getCollection("BuzzInfo");
    DBObject sort = new BasicDBObject();
    sort.put("modified", -1);
    DBCursor cursor = buzzCollection.find(query).sort(sort);
    try {//from  ww  w  .  j  a va2  s. c o m
        while (cursor.hasNext()) {
            //get buzzid
            DBObject buzz_obj = cursor.next();
            ObjectId buzz_id = (ObjectId) buzz_obj.get("_id");
            //get images for buzzid
            GridFS gridFS = new GridFS(mongoDB);
            BasicDBObject check_images = new BasicDBObject("BuzzID", buzz_id);
            List<GridFSDBFile> dbfiles = gridFS.find(check_images);
            String image_links = "";
            for (GridFSDBFile file : dbfiles) {
                String _buzz_id = buzz_id.toString();
                String pic_num = file.get("PicNum").toString();

                if (!image_links.equals("")) {
                    image_links += ",http://192.168.0.11:8080/BuzzRestAPI/webresources/buzz/Image?buzzid="
                            + _buzz_id + "&pic_num=" + pic_num;
                } else {
                    image_links += "http://192.168.0.11:8080/BuzzRestAPI/webresources/buzz/Image?buzzid="
                            + _buzz_id + "&pic_num=" + pic_num;
                }
            }
            String imgs = "\"Images\": " + "\"" + image_links + "\"";
            retval += buzz_obj;
            retval = retval.substring(0, retval.length() - 1);
            retval += ", " + imgs;
            double lat2 = (double) ((BasicDBList) buzz_obj.get("loc")).get(0);
            double lng2 = (double) ((BasicDBList) buzz_obj.get("loc")).get(1);
            double dist = this.haversine(lat, lng, lat2, lng2);
            retval += ", \"Distance\": " + dist;
            String directions_url = "https://maps.google.com/maps?saddr=" + lat + "," + lng + "&daddr=" + lat2
                    + "," + lng2 + "&hl=en&sll=" + lat + "," + lng + "&sspn=" + lat2 + "," + lng2
                    + "&t=m&mra=mift&mrsp=1&sz=5&z=18";
            retval += ", \"Directions\": \"" + directions_url + "\"";
            retval += "},";
        }
    } catch (Exception exc) {
    } finally {
        cursor.close();
    }
    retval = retval.substring(0, retval.length() - 1);
    retval = "callback({\"Buzzes\": [" + retval + "]})";
    return retval;
}