Example usage for com.mongodb QueryBuilder start

List of usage examples for com.mongodb QueryBuilder start

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Introduction

In this page you can find the example usage for com.mongodb QueryBuilder start.

Prototype

public static QueryBuilder start(final String key)

Source Link

Document

Creates a new query with a document key

Usage

From source file:at.tuwien.aic.Main.java

private static void classifyTopic() {
    String topic = getNonEmptyString("Enter a topic you want to query");
    Mongo mongo;/*from   w  w w  . ja  v  a2  s .co  m*/
    DB db = null;

    try {
        mongo = new Mongo(_prop.getProperty("db_host"));
        db = mongo.getDB(_prop.getProperty("db_name"));
    } catch (UnknownHostException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        return;
    }

    Classifier c = ClassifyTweet.loadModel("resources/classifier.model");
    TweetScorer scorer = new TweetScorer();

    DBCollection tweetCollection = db.getCollection("tweets");

    Pattern pattern = Pattern.compile("^.+" + topic + ".+$");
    DBObject query = QueryBuilder.start("text").regex(pattern).get();
    DBCursor resultSet = tweetCollection.find(query);

    int count = 0;
    double value = 0;
    double tweetClassifiedScore = 0;
    double tweetPosUserScore = 0;
    double tweetNegUserScore = 0;

    while (resultSet.hasNext()) {
        try {
            DBObject obj = resultSet.next();
            String tweetText = (String) obj.get("text");

            tweetClassifiedScore += ClassifyTweet.classifyTweet(c, tweetText);
            double score = scorer.scoreTweet(obj);

            if (tweetClassifiedScore > 0) {
                tweetPosUserScore += score;
            } else {
                tweetNegUserScore += score;
            }
            ++count;
        } catch (NumberFormatException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } catch (JSONException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    // Normalizing between 0 an 1
    value = tweetPosUserScore / (tweetPosUserScore + tweetNegUserScore);
    System.out.println("This topic has a sentiment value of: " + value);
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static Theme getThemeByExactZCoordinate(int zcoord) {
    DBObject query = QueryBuilder.start("minZ").lessThanEquals(zcoord).and("maxZ").greaterThanEquals(zcoord)
            .get();/*  ww w  . ja  v  a2s .  c  o  m*/
    try {
        Theme theme = ThemedBuildPlugin.getJsonMapper().readValue(
                ThemedBuildPlugin.getMongoUtil().getThemeCollection().findOne(query).toString(), Theme.class);
        theme.fetchLots();
        return theme;
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
    }
    return null;
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static Theme getThemeByLocation(Location loc) {
    DBObject query = QueryBuilder.start("minZ").lessThanEquals(loc.getBlockZ()).and("maxZ")
            .greaterThanEquals(loc.getBlockZ()).get();
    try {/*from   www  . j  ava  2 s . co m*/
        DBObject themeo = ThemedBuildPlugin.getMongoUtil().getThemeCollection().findOne(query);
        if (themeo != null) {
            Theme theme = ThemedBuildPlugin.getJsonMapper().readValue(themeo.toString(), Theme.class);
            theme.fetchLots();
            return theme;
        }
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
        return null;
    }
    return null;
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static Theme getThemeById(ObjectId id) {
    DBObject query = QueryBuilder.start("_id").is(id).get();
    try {//from www.j  a v a2  s. c o  m
        Theme theme = ThemedBuildPlugin.getJsonMapper().readValue(
                ThemedBuildPlugin.getMongoUtil().getThemeCollection().findOne(query).toString(), Theme.class);
        theme.fetchLots();
        return theme;
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
    }
    return null;
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static Theme getThemeByName(String name) {
    DBObject query = QueryBuilder.start("name").is(name).get();
    try {//from ww w . j a va  2s. c  o  m
        DBCursor cursor = ThemedBuildPlugin.getMongoUtil().getThemeCollection().find(query);
        DBObject object = cursor.sort(new BasicDBObject("_id", -1)).limit(1).next();
        Theme theme = ThemedBuildPlugin.getJsonMapper().readValue(object.toString(), Theme.class);
        theme.fetchLots();
        return theme;
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
    }
    return null;
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static Lot getLot(String playerUUID) {
    DBObject query = QueryBuilder.start("owner").is(playerUUID).get();
    try {//w w w . j a  v a  2  s .  c o m
        DBCursor cursor = ThemedBuildPlugin.getMongoUtil().getLotCollection().find(query);
        DBObject object = cursor.sort(new BasicDBObject("_id", -1)).limit(1).next();
        Lot lot = ThemedBuildPlugin.getJsonMapper().readValue(object.toString(), Lot.class);
        lot.generateBounds();
        lotCache.put(lot.getCorner(), lot);
        return lot;
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
    }
    return null;
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static Lot getLot(String playerUUID, ObjectId themeId) {
    DBObject query = QueryBuilder.start("owner").is(playerUUID).and("belongsToTheme").is(themeId).get();
    try {//from  w  w w  .  j a  v a  2  s. c o m
        DBCursor cursor = ThemedBuildPlugin.getMongoUtil().getLotCollection().find(query);
        DBObject object = cursor.sort(new BasicDBObject("_id", -1)).limit(1).next();
        Lot lot = ThemedBuildPlugin.getJsonMapper().readValue(object.toString(), Lot.class);
        lot.generateBounds();
        lotCache.put(lot.getCorner(), lot);
        return lot;
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
    }
    return null;
}

From source file:co.mcme.themedbuilds.database.DatabaseUtil.java

License:Open Source License

public static PlayerReport getPlayerReport(OfflinePlayer p) {
    DBObject query = QueryBuilder.start("uuid").is(p.getUniqueId().toString()).get();
    try {//from  ww  w . ja v  a  2 s.  c o  m
        DBCursor cursor = ThemedBuildPlugin.getMongoUtil().getPlayerCollection().find(query);
        DBObject object = cursor.sort(new BasicDBObject("_id", -1)).limit(1).next();
        PlayerDocument doc = ThemedBuildPlugin.getJsonMapper().readValue(object.toString(),
                PlayerDocument.class);
        PlayerReport report = new PlayerReport(p, doc.getLots(), doc.getLots().get(doc.getLots().size() - 1));
        return report;
    } catch (IOException ex) {
        ThemedLogger.getLog().log(Level.SEVERE, ex.getMessage(), ex);
    }
    return null;
}

From source file:com.andiandy.m101j.week3.hw2_3.BlogPostDAO.java

License:Apache License

public DBObject findByPermalink(String permalink) {

    DBObject post = null;/* w w  w .  j  a v a 2s. co  m*/
    // XXX HW 3.2,  Work Here
    DBObject query = QueryBuilder.start("permalink").is(permalink).get();
    post = postsCollection.find(query).next();

    return post;
}

From source file:com.andiandy.m101j.week3.hw2_3.BlogPostDAO.java

License:Apache License

public void addPostComment(final String name, final String email, final String body, final String permalink) {

    // XXX HW 3.3, Work Here
    // Hints:/* w w w .  ja v  a2 s .  com*/
    // - email is optional and may come in NULL. Check for that.
    // - best solution uses an update command to the database and a suitable
    //   operator to append the comment on to any existing list of comments
    DBObject query = QueryBuilder.start("permalink").is(permalink).get();
    DBObject post = postsCollection.find(query).next();
    BasicDBObject comment = new BasicDBObject();
    comment.append("author", name);
    if (email != null) {
        comment.append("email", email);
    }
    comment.append("body", body);
    post.put("comments", comment);
    postsCollection.update(query, new BasicDBObject("$push", new BasicDBObject("comments", comment)));

}