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.eclipse.linuxtools.tmf.totalads.algorithms.ksm.KernelStateModeling.java

License:Open Source License

/**
 * Gets maximum KL and MM// ww  w .  j  a v  a  2  s .c  om
 * @param cursor
 * @param maxKL
 * @param maxMM
 */
private Double[] getMaxKLandMM(DBCursor cursor) {
    Double[] maxKLMM = { 0.0, 0.0 };
    while (cursor.hasNext()) {
        DBObject doc = cursor.next();
        Double KL = (Double) doc.get("KL");
        Double MM = (Double) doc.get("MM");
        if (KL > maxKLMM[0])
            maxKLMM[0] = KL;
        if (MM > maxKLMM[1])
            maxKLMM[1] = MM;
    }
    cursor.close();
    return maxKLMM;
}

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From source file:org.eclipse.linuxtools.tmf.totalads.algorithms.slidingwindow.SlidingWindow.java

License:Open Source License

/**
 * Initializes the model if already exists in the database
 * @param connection DBMS object/*from   w ww .  j  ava 2 s. c  o m*/
 * @param database   Database name
 */
private void initialize(DBMS connection, String database) {

    DBCursor cursor = connection.selectAll(database, this.TRACE_COLLECTION);
    if (cursor != null) {
        while (cursor.hasNext()) {
            DBObject dbObject = cursor.next();
            Gson gson = new Gson();
            String key = dbObject.get("_id").toString();

            Event[] event = gson.fromJson(dbObject.get("tree").toString(), Event[].class);
            sysCallSequences.put(key, event);
        }
        cursor.close();
    }
    // get the maxwin
    cursor = connection.selectAll(database, this.SETTINGS_COLLECTION);
    if (cursor != null) {
        while (cursor.hasNext()) {
            DBObject dbObject = cursor.next();
            maxWin = Integer.parseInt(dbObject.get(SettingsCollection.MAX_WIN.toString()).toString());
            maxHamDis = Integer.parseInt(dbObject.get(SettingsCollection.MAX_HAM_DIS.toString()).toString());
        }
        cursor.close();
    }

}

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From source file:org.eclipse.linuxtools.tmf.totalads.algorithms.slidingwindow.SlidingWindow.java

License:Open Source License

/**
 * /*w  w w .j av a2 s.  c  om*/
 * Set the settings of an algorithm as option name at index i and value ate index i+1
 * @return String[] Array of String
 *
 */
@Override
public String[] getTestingOptions(String database, DBMS connection) {
    DBCursor cursor = connection.selectAll(database, this.SETTINGS_COLLECTION);
    if (cursor != null) {
        while (cursor.hasNext()) {
            DBObject dbObject = cursor.next();
            //maxWin=Integer.parseInt(dbObject.get(SETTINGS_COLL_FIELDS.MAX_WIN).toString());
            maxHamDis = Integer.parseInt(dbObject.get(SettingsCollection.MAX_HAM_DIS.toString()).toString());
        }
        cursor.close();
    }
    testingOptions[1] = maxHamDis.toString();
    return testingOptions;

}

---

From source file:org.eclipse.linuxtools.tmf.totalads.dbms.DBMS.java

License:Open Source License

/**
 * Selects a max value from a collection (table)
 * @param key Field name to return the max of. Use an index key otherwise the results will be slow
 * @param database Database name//from  w  ww .ja  v a 2s  .c  o m
 * @param collection Collection name
 * @return Maximum value as a string
 */

public String selectMax(String key, String database, String collection) {
    String maxVal = "";
    DB db = mongoClient.getDB(database);
    DBCollection coll = db.getCollection(collection);
    BasicDBObject query = new BasicDBObject(key, -1);
    DBCursor curs = coll.find().sort(query).limit(1);
    if (curs.hasNext())
        maxVal = curs.next().get(key).toString();
    curs.close();

    return maxVal;
}

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From source file:org.einherjer.week2.samples.DotNotationSample.java

License:Apache License

public static void main(String[] args) throws UnknownHostException {
    Mongo client = new Mongo();
    DB db = client.getDB("course");
    DBCollection lines = db.getCollection("dotNotationSample");
    lines.drop();//from w w w. j  a va  2  s.co  m
    Random rand = new Random();

    // insert 10 lines with random start and end points
    for (int i = 0; i < 10; i++) {
        lines.insert(
                new BasicDBObject("_id", i)
                        .append("start",
                                new BasicDBObject("x", rand.nextInt(90) + 10).append("y",
                                        rand.nextInt(90) + 10))
                        .append("end", new BasicDBObject("x", rand.nextInt(90) + 10).append("y",
                                rand.nextInt(90) + 10)));
    }

    QueryBuilder builder = QueryBuilder.start("start.x").greaterThan(50);

    DBCursor cursor = lines.find(builder.get(), new BasicDBObject("start.y", true).append("_id", false));

    try {
        while (cursor.hasNext()) {
            DBObject cur = cursor.next();
            System.out.println(cur);
        }
    } finally {
        cursor.close();
    }
}

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From source file:org.einherjer.week2.samples.FieldSelectionSample.java

License:Apache License

public static void main(String[] args) throws UnknownHostException {
    Mongo client = new Mongo();
    DB db = client.getDB("course");
    DBCollection collection = db.getCollection("fieldSelectionSample");
    collection.drop();//from   www  .j  a v  a2 s .  c  o  m
    Random rand = new Random();

    // insert 10 documents with two random integers
    for (int i = 0; i < 10; i++) {
        collection.insert(new BasicDBObject("x", rand.nextInt(2)).append("y", rand.nextInt(100)).append("z",
                rand.nextInt(1000)));
    }

    DBObject query = QueryBuilder.start("x").is(0).and("y").greaterThan(10).lessThan(70).get();

    //use second find parameter to filter the returned fields
    DBCursor cursor = collection.find(query, new BasicDBObject("y", true).append("_id", false));
    try {
        while (cursor.hasNext()) {
            DBObject cur = cursor.next();
            System.out.println(cur);
        }
    } finally {
        cursor.close();
    }
}

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From source file:org.einherjer.week2.samples.FindAndModifySample.java

License:Apache License

private static void printCollection(final DBCollection collection) {
    DBCursor cursor = collection.find().sort(new BasicDBObject("_id", 1));
    try {/* www  .  j a  v  a2  s .c  om*/
        while (cursor.hasNext()) {
            System.out.println(cursor.next());
        }
    } finally {
        cursor.close();
    }

}

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From source file:org.einherjer.week2.samples.FindCriteriaSample.java

License:Apache License

public static void main(String[] args) throws UnknownHostException {
    Mongo client = new Mongo();
    DB db = client.getDB("course");
    DBCollection collection = db.getCollection("findCriteriaSample");
    collection.drop();//from  www.ja va  2s .c o m

    // insert 10 documents with two random integers
    for (int i = 0; i < 10; i++) {
        collection
                .insert(new BasicDBObject("x", new Random().nextInt(2)).append("y", new Random().nextInt(100)));
    }

    //1- The query document can be created by using a QueryBuilder...
    QueryBuilder builder = QueryBuilder.start("x").is(0).and("y").greaterThan(10).lessThan(70);
    //2- or, the query document can be created manually
    DBObject query = new BasicDBObject("x", 0).append("y", new BasicDBObject("$gt", 10).append("$lt", 90));

    System.out.println("\nCount:");
    long count = collection.count(builder.get());
    System.out.println(count);

    System.out.println("\nFind all: ");
    DBCursor cursor = collection.find(builder.get());
    try {
        while (cursor.hasNext()) {
            DBObject cur = cursor.next();
            System.out.println(cur);
        }
    } finally {
        cursor.close();
    }
}

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From source file:org.einherjer.week2.samples.FindSample.java

License:Apache License

public static void main(String[] args) throws UnknownHostException {
    Mongo client = new Mongo();
    DB db = client.getDB("course");
    DBCollection collection = db.getCollection("findSample");
    collection.drop();// ww  w  .  j  ava  2  s.co  m

    // insert 10 documents with a random integer as the value of field "x"
    for (int i = 0; i < 10; i++) {
        collection.insert(new BasicDBObject("x", new Random().nextInt(100)));
    }

    System.out.println("Find one:");
    DBObject one = collection.findOne();
    System.out.println(one);

    System.out.println("\nFind all: ");
    DBCursor cursor = collection.find();
    try {
        while (cursor.hasNext()) {
            DBObject cur = cursor.next();
            System.out.println(cur);
        }
    } finally {
        cursor.close();
    }

    System.out.println("\nCount:");
    long count = collection.count();
    System.out.println(count);
}

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From source file:org.einherjer.week2.samples.SortSkipLimitSample.java

License:Apache License

public static void main(String[] args) throws UnknownHostException {
    Mongo client = new Mongo();
    DB db = client.getDB("course");
    DBCollection lines = db.getCollection("sortSkipLimitSample");
    lines.drop();/* ww w.  j  av  a2  s  .c om*/
    Random rand = new Random();

    // insert 10 lines with random start and end points
    for (int i = 0; i < 10; i++) {
        lines.insert(new BasicDBObject("_id", i)
                .append("start", new BasicDBObject("x", rand.nextInt(2)).append("y", rand.nextInt(90) + 10))
                .append("end", new BasicDBObject("x", rand.nextInt(2)).append("y", rand.nextInt(90) + 10)));
    }

    DBCursor cursor = lines.find().sort(new BasicDBObject("start.x", 1).append("start.y", -1)).skip(2)
            .limit(10);

    try {
        while (cursor.hasNext()) {
            DBObject cur = cursor.next();
            System.out.println(cur);
        }
    } finally {
        cursor.close();
    }
}

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