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:br.ufabc.impress.mongo.manager.DBHelper.java

@Override
public String getByKey(String tableName, String _id) {
    if (tableName == null || tableName.equals("") || _id == null || _id.equals("")) {
        return "501";
    }//  w  ww .j a v  a  2s  .  c o m
    String row = null;
    DBCursor cursor = null;
    DBCollection table = db.getCollection(tableName);
    BasicDBObject searchQuery = new BasicDBObject();
    searchQuery.put("_id", new ObjectId(_id));
    cursor = table.find(searchQuery);
    if (cursor.size() > 0) {
        JSON json = new JSON();
        row = json.serialize(cursor);
        cursor.close();
        return row;
    } else {
        cursor.close();
        return null;
    }
}

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From source file:br.ufabc.impress.mongo.manager.DBHelper.java

@Override
public String getByCondition(String tableName, Map condition) {
    if (tableName == null || tableName.equals("") || condition == null || condition.equals("")) {
        return "501";
    }//  w w  w.  j a  v a 2 s  . co  m
    String row = "";
    DBCollection table = db.getCollection(tableName);
    BasicDBObject searchQuery = new BasicDBObject(condition);
    BasicDBObject andQuery = new BasicDBObject();
    andQuery.put("$and", searchQuery);
    DBCursor cursor = table.find(searchQuery);
    if (cursor.size() > 0) {
        JSON json = new JSON();
        row = json.serialize(cursor);
        cursor.close();
        return row;
    } else {
        cursor.close();
        return null;
    }
}

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From source file:BusinessLogic.Service.RestaurantService.java

public String getAll() {
    String response = "";
    try {//from w ww .ja  v  a2  s. com

        ArrayList userConsult = new ArrayList();
        MongoConnection dbSingleton = MongoConnection.getInstance();

        DB db = dbSingleton.getTestdb();

        // get list of collections
        Set<String> collections = db.getCollectionNames();

        // get a single collection
        DBCollection collection = db.getCollection(collName);
        DBCursor cursor = collection.find();
        try {
            while (cursor.hasNext()) {
                response = response + cursor.next().toString() + "\n";
            }
        } finally {
            cursor.close();
        }

        System.out.println("Done");

    } catch (MongoException e) {
        e.printStackTrace();
    }
    return response;
}

---

From source file:CapaDato.Conexion.java

public static void main(String[] Args) throws UnknownHostException {
    try {// ww w. j  a v  a  2  s. c  o  m
        // Para conectarse al servidor MongoDB
        MongoClient conexion = new MongoClient("localhost", 27017);
        // Ahora conectarse a bases de datos
        DB ejemplo = conexion.getDB("Ejemplo");
        System.out.println("Conectarse a la base de datos exitoso");
        DBCollection coleccion = ejemplo.getCollection("Alumno");
        //             Set<String> collectionNames = ejemplo.getCollectionNames();
        //            for (final String s : collectionNames) 
        //            {
        //            System.out.println(s);
        //            }
        //Para consultar otro mtodo
        Object objeto = new Object();
        objeto = "null,{nombre:1}";
        DBCursor cursor = coleccion.find();

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

        //DBObject doc = coleccion.findOne();

        //Para consultar
        //DBCursor cursor = coleccion.find ();
        //System.out.println(cursor);
        //            int i = 1;
        //          while (cursor.hasNext ()) 
        //          { 
        //             System.out.println ("insertado documento:" + i); 
        //             System.out.println (cursor.next ()); 
        //             i ++;
        //          }

    } catch (Exception e) {
        System.err.println(e.getClass().getName() + ": " + e.getMessage());
    }

}

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From source file:ch.agent.crnickl.mongodb.ReadMethodsForChroniclesAndSeries.java

License:Apache License

public Collection<Chronicle> getChroniclesByParent(Chronicle parent) throws T2DBException {
    Collection<Chronicle> result = new ArrayList<Chronicle>();
    if (check(Permission.DISCOVER, parent, false)) {
        try {/*from  w ww .  jav  a 2  s . c  om*/
            Database db = parent.getDatabase();
            DBCursor cursor = getMongoDB(db).getChronicles()
                    .find(mongoObject(MongoDatabase.FLD_CHRON_PARENT, getIdOrZero(parent)));
            try {
                while (cursor.hasNext()) {
                    Chronicle chronicle = unpack(db, (BasicDBObject) cursor.next());
                    check(Permission.READ, chronicle);
                    result.add(chronicle);
                }
            } finally {
                cursor.close();
            }
        } catch (Exception e) {
            throw T2DBMsg.exception(e, E.E40122, parent.getName(true));
        }
    }
    return result;
}

---

From source file:ch.agent.crnickl.mongodb.ReadMethodsForProperty.java

License:Apache License

/**
 * Find a collection of properties with names matching a pattern.
 * If the pattern is enclosed in slashes it is taken as a standard
 * regexp pattern; the slashes will be removed. If it is not enclosed
 * in slashes, it is taken as a minimal pattern and all occurrences of
 * "*" will be replaced with ".*" (zero or more arbitrary characters). 
 * //from  w w  w. j  ava  2s  .  co  m
 * @param database a database
 * @param pattern a simple pattern or a regexp pattern
 * @return a collection of properties, possibly empty, never null
 * @throws T2DBException
 */
public Collection<Property<?>> getProperties(Database database, String pattern) throws T2DBException {
    try {
        DBCollection coll = getMongoDB(database).getProperties();
        DBObject query = null;
        if (pattern != null && pattern.length() > 0) {
            String regexp = extractRegexp(pattern);
            if (regexp == null)
                pattern = pattern.replace("*", ".*");
            else
                pattern = regexp;
            query = mongoObject(MongoDatabase.FLD_PROP_NAME, Pattern.compile(pattern));
        }
        DBCursor cursor = coll.find(query);
        Collection<Property<?>> result = new ArrayList<Property<?>>();
        try {
            while (cursor.hasNext()) {
                result.add(unpack(database, (BasicDBObject) cursor.next()));
            }
        } finally {
            cursor.close();
        }
        return result;
    } catch (Exception e) {
        throw T2DBMsg.exception(e, E.E20106, pattern);
    }
}

---

From source file:ch.agent.crnickl.mongodb.ReadMethodsForSchema.java

License:Apache License

/**
 * Find a collection of schema surrogates with labels matching a pattern.
 * /*from  w  w w.j  av a  2s  .c o  m*/
 * @param db a database
 * @param pattern a simple pattern where "*" stands for zero or more characters
 * @return a collection of schema surrogates
 * @throws T2DBException
 */
public Collection<Surrogate> getSchemaSurrogateList(Database db, String pattern) throws T2DBException {
    try {
        Collection<Surrogate> result = new ArrayList<Surrogate>();
        DBCollection coll = getMongoDB(db).getSchemas();
        DBObject query = null;
        if (pattern != null && pattern.length() > 0) {
            String regexp = extractRegexp(pattern);
            if (regexp == null) {
                regexp = pattern.replace("*", ".*");
                if (regexp.equals(pattern))
                    regexp = null;
            }
            query = mongoObject(MongoDatabase.FLD_SCHEMA_NAME,
                    regexp == null ? pattern : Pattern.compile(regexp));
        }
        DBCursor cursor = coll.find(query);
        try {
            while (cursor.hasNext()) {
                ObjectId id = (ObjectId) cursor.next().get(MongoDatabase.FLD_ID);
                Surrogate s = makeSurrogate(db, DBObjectType.SCHEMA, new MongoDBObjectId(id));
                result.add(s);
            }
        } finally {
            cursor.close();
        }
        return result;
    } catch (Exception e) {
        throw T2DBMsg.exception(e, E.E30105, pattern);
    }
}

---

From source file:ch.agent.crnickl.mongodb.ReadMethodsForValueType.java

License:Apache License

/**
 * Find a collection of value types with names matching a pattern.
 * If the pattern is enclosed in slashes it is taken as a standard
 * regexp pattern; the slashes will be removed. If it is not enclosed
 * in slashes, it is taken as a minimal pattern and all occurrences of
 * "*" will be replaced with ".*" (zero or more arbitrary characters). 
 * /*from w w  w.  j a v  a  2s.co m*/
 * @param database a database
 * @param pattern a simple pattern or a regexp pattern
 * @return a collection of value types, possibly empty, never null
 * @throws T2DBException
 */
public Collection<ValueType<?>> getValueTypes(Database database, String pattern) throws T2DBException {
    try {
        DBObject query = null;
        if (pattern != null && pattern.length() > 0) {
            String regexp = extractRegexp(pattern);
            if (regexp == null)
                pattern = pattern.replace("*", ".*");
            else
                pattern = regexp;
            query = mongoObject(MongoDatabase.FLD_VT_NAME, Pattern.compile(pattern));
        }
        DBCursor cursor = getMongoDB(database).getValueTypes().find(query);
        Collection<ValueType<?>> result = new ArrayList<ValueType<?>>();
        try {
            while (cursor.hasNext()) {
                result.add(unpack(database, (BasicDBObject) cursor.next()));
            }
        } finally {
            cursor.close();
        }
        return result;
    } catch (Exception e) {
        throw T2DBMsg.exception(e, E.E10106, pattern);
    }
}

---

From source file:ch.agent.crnickl.mongodb.WriteMethodsForSchema.java

License:Apache License

/**
 * Find a chronicle with an explicit attribute value for a given property and schemas. 
 * This looks like a "reading" method but is used in the context of schema updating.
 * /*w  ww. j  ava  2  s. co  m*/
 * @param property a property
 * @param schema a schema
 * @return a surrogate or null
 * @throws T2DBException
 */
public Surrogate findChronicle(Property<?> property, Schema schema) throws T2DBException {
    Surrogate result = null;
    DBCursor cursor = null;
    try {
        Database db = schema.getDatabase();
        cursor = getMongoDB(db).getAttributes().find(mongoObject(MongoDatabase.FLD_ATTR_PROP, getId(property)));
        while (cursor.hasNext()) {
            ObjectId chrOid = ((BasicDBObject) cursor.next()).getObjectId(MongoDatabase.FLD_ATTR_CHRON);
            Surrogate entityKey = makeSurrogate(db, DBObjectType.CHRONICLE, chrOid);
            Schema s = db.getChronicle(entityKey).getSchema(true);
            if (s.dependsOnSchema(schema)) {
                result = entityKey;
                break;
            }
        }
    } catch (Exception e) {
        throw T2DBMsg.exception(e, E.E30117);
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return result;
}

---

From source file:ch.agent.crnickl.mongodb.WriteMethodsForSchema.java

License:Apache License

/**
 * Find a chronicle with a given series in a collection of schemas.
 * This looks like a "reading" method but is used in the context of schema updating.
 * //  ww w .j a v a  2s .  co  m
 * @param ss a series definition
 * @param schema a schema
 * @return a surrogate or null
 * @throws T2DBException
 */
public Surrogate findChronicle(SeriesDefinition ss, Schema schema) throws T2DBException {
    Surrogate result = null;
    DBCursor cursor1 = null;
    DBCursor cursor2 = null;
    try {
        Database db = schema.getDatabase();
        cursor1 = getMongoDB(db).getChronicles()
                .find(mongoObject(MongoDatabase.FLD_CHRON_SCHEMA, getId(schema)));
        OUTER: while (cursor1.hasNext()) {
            ObjectId chronicleOid = getObjectId((BasicDBObject) cursor1.next());
            cursor2 = getMongoDB(db).getSeries().find(mongoObject(MongoDatabase.FLD_SER_CHRON, chronicleOid,
                    MongoDatabase.FLD_SER_NUM, ss.getNumber()));
            while (cursor2.hasNext()) {
                Surrogate entityKey = makeSurrogate(db, DBObjectType.CHRONICLE, chronicleOid);
                Schema s = db.getChronicle(entityKey).getSchema(true);
                if (s.dependsOnSchema(schema)) {
                    result = entityKey;
                    break OUTER;
                }
            }
        }
    } catch (Exception e) {
        throw T2DBMsg.exception(e, E.E30117);
    } finally {
        if (cursor1 != null)
            cursor1.close();
        if (cursor2 != null)
            cursor2.close();
    }
    return result;
}

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