public void LoadSeedData(String strColl, String metadatafile) throws Exception {
    try {
      InputStream is = this.getClass().getResourceAsStream(metadatafile);
      String xml;
      xml = IOUtils.toString(is);
      JSONObject rwSeed = XML.toJSONObject(xml);

      if (!rwSeed.isNull("ReferralWireSeedData")) {
        JSONObject json = rwSeed.getJSONObject("ReferralWireSeedData");
        DBCollection dbcoll = store.getColl(strColl);

        Object coll = (Object) json.get(strColl);
        if (coll instanceof JSONArray) {
          JSONArray defs = (JSONArray) coll;
          for (int i = 0; i < defs.length(); i++) {
            Object obj = (JSONObject) defs.get(i);
            dbcoll.insert((DBObject) com.mongodb.util.JSON.parse(obj.toString()));
          }
        } else {
          dbcoll.insert((DBObject) com.mongodb.util.JSON.parse(coll.toString()));
        }
      }
    } catch (IOException e) {
      // TODO Auto-generated catch block
      log.debug("API Error: ", e);
    }
  }
  private void createTagDocuments() {

    DBCollection coll = mongoTemplate.getCollection(INPUT_COLLECTION);

    coll.insert(createDocument("Doc1", "spring", "mongodb", "nosql"));
    coll.insert(createDocument("Doc2", "spring", "mongodb"));
    coll.insert(createDocument("Doc3", "spring"));
  }
Example #3
0
 @Test
 public void testCountWithQueryCommand() {
   DBCollection collection = newCollection();
   collection.insert(new BasicDBObject("n", 1));
   collection.insert(new BasicDBObject("n", 2));
   collection.insert(new BasicDBObject("n", 2));
   assertEquals(2, collection.count(new BasicDBObject("n", 2)));
 }
Example #4
0
 @Test
 public void testCountOnCursor() {
   DBCollection collection = newCollection();
   collection.insert(new BasicDBObject("n", 1));
   collection.insert(new BasicDBObject("n", 2));
   collection.insert(new BasicDBObject("n", 2));
   assertEquals(3, collection.find(QueryBuilder.start("n").exists(true).get()).count());
 }
 public void indexSortedFile(String filename) {
   try {
     System.out.println("Indexing " + filename);
     BufferedReader bfr = new BufferedReader(new FileReader(filename));
     String line = "";
     ArrayList<DBObject> anchorArr = new ArrayList<DBObject>();
     int count = 0;
     while ((line = bfr.readLine()) != null) {
       if (line.contains("|")) {
         String[] linesplit = line.split("\\|");
         if (linesplit.length == 5) {
           anchorArr.add(
               indexDoc(
                   linesplit[0],
                   Integer.parseInt(linesplit[2]),
                   Integer.parseInt(linesplit[3]),
                   Integer.parseInt(linesplit[4])));
           count++;
           if (count % 10000 == 0) {
             table.insert(anchorArr);
             anchorArr.clear(); // System.out.println(count);
           }
         } else if (linesplit.length > 5) {
           anchorArr.add(
               indexDoc(
                   linesplit[0],
                   Integer.parseInt(linesplit[2]),
                   Integer.parseInt(linesplit[3]),
                   Integer.parseInt(linesplit[4])));
           for (int i = 5; i < linesplit.length; i = i + 2) {
             if (linesplit[i].matches("\\d+")
                 && linesplit[i + 1].matches("\\d+")) { // Numeric string validation test
               anchorArr.add(
                   indexDoc(
                       linesplit[0],
                       0,
                       Integer.parseInt(linesplit[i]),
                       Integer.parseInt(linesplit[i + 1])));
               count++;
               if (count % 10000 == 0) {
                 table.insert(anchorArr);
                 anchorArr.clear(); // System.out.println(count);
               }
             }
           } // End for
         }
       }
     }
     if (count % 10000 != 0) {
       table.insert(anchorArr);
       anchorArr.clear();
       System.out.println(count);
     }
     bfr.close();
   } catch (IOException ioe) {
     ioe.printStackTrace();
   }
 } // end indexSortedFile()
  public void run() throws UnknownHostException {
    final List<Integer> models = new ArrayList<Integer>();
    final List<String> owners = new ArrayList<String>();
    final MongoClient client = new MongoClient();

    DB db = client.getDB("mongo_hadoop");
    DBCollection devices = db.getCollection("devices");
    DBCollection logs = db.getCollection("logs");

    if ("true".equals(System.getenv("SENSOR_DROP"))) {
      LOG.info("Dropping sensor data");
      devices.drop();
      logs.drop();
      devices.createIndex(new BasicDBObject("devices", 1));
    }
    db.getCollection("logs_aggregate").createIndex(new BasicDBObject("devices", 1));

    if (logs.count() == 0) {
      for (int i = 0; i < 10; i++) {
        owners.add(getRandomString(10));
      }

      for (int i = 0; i < 10; i++) {
        models.add(getRandomInt(10, 20));
      }

      List<ObjectId> deviceIds = new ArrayList<ObjectId>();
      for (int i = 0; i < NUM_DEVICES; i++) {
        DBObject device =
            new BasicDBObject("_id", new ObjectId())
                .append("name", getRandomString(5) + getRandomInt(3, 5))
                .append("type", choose(TYPES))
                .append("owner", choose(owners))
                .append("model", choose(models))
                .append("created_at", randomDate(new Date(2000, 1, 1, 16, 49, 29), new Date()));
        deviceIds.add((ObjectId) device.get("_id"));
        devices.insert(device);
      }

      for (int i = 0; i < NUM_LOGS; i++) {
        if (i % 50000 == 0) {
          LOG.info(format("Creating %d sensor log data entries: %d%n", NUM_LOGS, i));
        }
        BasicDBList location = new BasicDBList();
        location.add(getRandomInRange(-180, 180, 3));
        location.add(getRandomInRange(-90, 90, 3));
        DBObject log =
            new BasicDBObject("_id", new ObjectId())
                .append("d_id", choose(deviceIds))
                .append("v", getRandomInt(0, 10000))
                .append("timestamp", randomDate(new Date(2013, 1, 1, 16, 49, 29), new Date()))
                .append("loc", location);
        logs.insert(log);
      }
    }
  }
Example #7
0
 @Test
 public void testDistinctQuery() {
   DBCollection collection = newCollection();
   collection.insert(new BasicDBObject("n", 1).append("_id", 1));
   collection.insert(new BasicDBObject("n", 2).append("_id", 2));
   collection.insert(new BasicDBObject("n", 3).append("_id", 3));
   collection.insert(new BasicDBObject("n", 1).append("_id", 4));
   collection.insert(new BasicDBObject("n", 1).append("_id", 5));
   assertEquals(Arrays.asList(1, 2, 3), collection.distinct("n"));
 }
Example #8
0
  @Test
  public void testFindWithQuery() {
    DBCollection collection = newCollection();

    collection.insert(new BasicDBObject("name", "jon"));
    collection.insert(new BasicDBObject("name", "leo"));
    collection.insert(new BasicDBObject("name", "neil"));
    collection.insert(new BasicDBObject("name", "neil"));
    DBCursor cursor = collection.find(new BasicDBObject("name", "neil"));
    assertEquals("should have two neils", 2, cursor.toArray().size());
  }
  protected <T> Key<T> insert(DBCollection dbColl, T entity, WriteConcern wc) {
    LinkedHashMap<Object, DBObject> involvedObjects = new LinkedHashMap<Object, DBObject>();
    DBObject dbObj = entityToDBObj(entity, involvedObjects);
    WriteResult wr;
    if (wc == null) wr = dbColl.insert(dbObj);
    else wr = dbColl.insert(dbObj, wc);

    throwOnError(wc, wr);

    return postSaveGetKey(entity, dbObj, dbColl, involvedObjects);
  }
Example #10
0
  @Test
  public void testRemove() {
    DBCollection collection = newCollection();
    collection.insert(new BasicDBObject("_id", 1));
    collection.insert(new BasicDBObject("_id", 2));
    collection.insert(new BasicDBObject("_id", 3));
    collection.insert(new BasicDBObject("_id", 4));

    collection.remove(new BasicDBObject("_id", 2));

    assertEquals(null, collection.findOne(new BasicDBObject("_id", 2)));
  }
 /** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */
 protected void doPost(HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException {
   String createTableName = request.getParameter("createTableName");
   String createTableX = request.getParameter("createTableX");
   try {
     boolean createTable = true;
     for (String name : Util.getMongoDb().getCollectionNames()) {
       if (name.equals(createTableName)) {
         createTable = false;
       }
     }
     if (createTable) {
       System.out.println("creating table");
       DBObject options = BasicDBObjectBuilder.start().get();
       DBCollection table = Util.getMongoDb().createCollection(createTableName, options);
       BasicDBObject document = new BasicDBObject();
       if (createTableX.isEmpty()) {
         createTableX = "Date";
       }
       document.put("_id", createTableX);
       document.put("value", "Value");
       table.insert(document);
       boolean createTableCollections = true;
       for (String name : Util.getMongoDb().getCollectionNames()) {
         if (name.equals("TableCollections")) {
           createTableCollections = false;
         }
       }
       if (createTableCollections) {
         DBObject options2 = BasicDBObjectBuilder.start().get();
         DBCollection tableResourceCollection =
             Util.getMongoDb().createCollection("TableCollections", options2);
         BasicDBObject documentResourceCollection = new BasicDBObject();
         documentResourceCollection.put("_id", createTableName);
         documentResourceCollection.put("value", createTableX);
         tableResourceCollection.insert(documentResourceCollection);
       } else {
         DBCollection tableResourceCollection =
             Util.getMongoDb().getCollection("TableCollections");
         BasicDBObject documentResourceCollection = new BasicDBObject();
         documentResourceCollection.put("_id", createTableName);
         documentResourceCollection.put("value", createTableX);
         tableResourceCollection.insert(documentResourceCollection);
       }
     } else {
       request.setAttribute("message", "Table Already Exists");
     }
   } catch (Exception e) {
     request.setAttribute("message", e.getMessage());
   }
   request.setAttribute("tableNames", Util.getCollections());
   request.getRequestDispatcher("createTable.jsp").forward(request, response);
 }
Example #12
0
  @Test
  public void testFindWithSkipLimit() {
    DBCollection collection = newCollection();
    collection.insert(new BasicDBObject("_id", 1));
    collection.insert(new BasicDBObject("_id", 2));
    collection.insert(new BasicDBObject("_id", 3));
    collection.insert(new BasicDBObject("_id", 4));

    DBCursor cursor = collection.find().limit(2).skip(2);
    assertEquals(
        Arrays.asList(new BasicDBObject("_id", 3), new BasicDBObject("_id", 4)), cursor.toArray());
  }
Example #13
0
 public void addToDB(Element e) {
   if (e instanceof Article) {
     Article art = (Article) e;
     document = new BasicDBObject();
     if (art.getKey() != null) document.put("key", art.getKey());
     if (art.getMdate() != null) document.put("mdate", art.getMdate());
     if (art.getRating() != null) document.put("rating", art.getRating());
     if (art.getReviewid() != null) document.put("reviewid", art.getReviewid());
     article.insert(addElement(art, document));
   }
   if (e instanceof Book) {
     Book bo = (Book) e;
     document = new BasicDBObject();
     if (bo.getKey() != null) document.put("key", bo.getKey());
     if (bo.getMdate() != null) document.put("mdate", bo.getMdate());
     book.insert(addElement(bo, document));
   }
   if (e instanceof Incollection) {
     Incollection inco = (Incollection) e;
     document = new BasicDBObject();
     if (inco.getKey() != null) document.put("key", inco.getKey());
     if (inco.getMdate() != null) document.put("mdate", inco.getMdate());
     incollection.insert(addElement(inco, document));
   }
   if (e instanceof Inproceedings) {
     Inproceedings inpro = (Inproceedings) e;
     document = new BasicDBObject();
     if (inpro.getKey() != null) document.put("key", inpro.getKey());
     if (inpro.getMdate() != null) document.put("mdate", inpro.getMdate());
     inproceeding.insert(addElement(inpro, document));
   }
   if (e instanceof Mastersthesis) {
     Mastersthesis mas = (Mastersthesis) e;
     document = new BasicDBObject();
     if (mas.getKey() != null) document.put("key", mas.getKey());
     if (mas.getMdate() != null) document.put("mdate", mas.getMdate());
     mastersthesis.insert(addElement(mas, document));
   }
   if (e instanceof Phdthesis) {
     Phdthesis phd = (Phdthesis) e;
     document = new BasicDBObject();
     if (phd.getKey() != null) document.put("key", phd.getKey());
     if (phd.getMdate() != null) document.put("mdate", phd.getMdate());
     phdthesis.insert(addElement(phd, document));
   }
   if (e instanceof Proceedings) {
     Proceedings pro = (Proceedings) e;
     document = new BasicDBObject();
     if (pro.getKey() != null) document.put("key", pro.getKey());
     if (pro.getMdate() != null) document.put("mdate", pro.getMdate());
     proceedings.insert(addElement(pro, document));
   }
   if (e instanceof Www) {
     Www w = (Www) e;
     document = new BasicDBObject();
     if (w.getKey() != null) document.put("key", w.getKey());
     if (w.getMdate() != null) document.put("mdate", w.getMdate());
     www.insert(addElement(w, document));
   }
 }
Example #14
0
  @Test
  public void testBasicUpdate() {
    DBCollection collection = newCollection();
    collection.insert(new BasicDBObject("_id", 1));
    collection.insert(new BasicDBObject("_id", 2).append("b", 5));
    collection.insert(new BasicDBObject("_id", 3));
    collection.insert(new BasicDBObject("_id", 4));

    collection.update(new BasicDBObject("_id", 2), new BasicDBObject("a", 5));

    assertEquals(
        new BasicDBObject("_id", 2).append("a", 5),
        collection.findOne(new BasicDBObject("_id", 2)));
  }
Example #15
0
 @Test
 public void testSortByEmeddedKey() {
   DBCollection collection = newCollection();
   collection.insert(new BasicDBObject("_id", 1).append("a", new BasicDBObject("b", 1)));
   collection.insert(new BasicDBObject("_id", 2).append("a", new BasicDBObject("b", 2)));
   collection.insert(new BasicDBObject("_id", 3).append("a", new BasicDBObject("b", 3)));
   List<DBObject> results = collection.find().sort(new BasicDBObject("a.b", -1)).toArray();
   assertEquals(
       Arrays.asList(
           new BasicDBObject("_id", 3).append("a", new BasicDBObject("b", 3)),
           new BasicDBObject("_id", 2).append("a", new BasicDBObject("b", 2)),
           new BasicDBObject("_id", 1).append("a", new BasicDBObject("b", 1))),
       results);
 }
Example #16
0
  @Test
  public void testIdInQueryResultsInIndexOrder() {
    DBCollection collection = newCollection();
    collection.insert(new BasicDBObject("_id", 4));
    collection.insert(new BasicDBObject("_id", 3));
    collection.insert(new BasicDBObject("_id", 1));
    collection.insert(new BasicDBObject("_id", 2));

    DBCursor cursor =
        collection.find(new BasicDBObject("_id", new BasicDBObject("$in", Arrays.asList(3, 2, 1))));
    assertEquals(
        Arrays.asList(
            new BasicDBObject("_id", 1), new BasicDBObject("_id", 2), new BasicDBObject("_id", 3)),
        cursor.toArray());
  }
Example #17
0
  @Test
  public void testFullUpdateWithSameId() throws Exception {
    DBCollection collection = newCollection();
    collection.insert(new BasicDBObject("_id", 1));
    collection.insert(new BasicDBObject("_id", 2).append("b", 5));
    collection.insert(new BasicDBObject("_id", 3));
    collection.insert(new BasicDBObject("_id", 4));

    collection.update(
        new BasicDBObject("_id", 2).append("b", 5), new BasicDBObject("_id", 2).append("a", 5));

    assertEquals(
        new BasicDBObject("_id", 2).append("a", 5),
        collection.findOne(new BasicDBObject("_id", 2)));
  }
Example #18
0
 public void createNewTodo(String body) {
   Todo todo = new Gson().fromJson(body, Todo.class);
   collection.insert(
       new BasicDBObject("title", todo.getTitle())
           .append("done", todo.isDone())
           .append("createdOn", new Date()));
 }
Example #19
0
  @Override
  public String IngresarJson(String nombreDB, String json, int clienteId)
      throws UnknownHostException {
    // TODO Auto-generated method stub
    MongoClient mongoClient = new MongoClient("localhost", 27017);
    DB base = mongoClient.getDB(nombreDB);

    // Ya existe
    if (ExisteCliente(nombreDB, clienteId)) {
      //        	System.out.println("********************\n");
      //        	System.out.println("Ya existe cliente, error no se igresa el Json");
      //        	System.out.println("********************\n");
      return "Ya existe cliente, error no se igresa el Json";
    }

    // no existe el cliente
    DBCollection collection = base.getCollection("Json");
    BasicDBObject document = new BasicDBObject();
    document.put("id", clienteId);

    DBObject object = (DBObject) JSON.parse(json);
    document.put("json", object);
    // document.put("json",json);
    collection.insert(document);
    return "Ok";
  }
Example #20
0
  public void addEntry(GroupResource groupRes) {

    BasicDBObject info = new BasicDBObject();

    info.putAll(groupRes.getMap());
    collection.insert(info);
  }
  public void insertar(UsuarioOD Usuario) {

    DBCollection coleccionUsuario = conectarMongo();

    if (coleccionUsuario != null) {

      BasicDBObject usuario = new BasicDBObject();
      usuario.put("id_u", crearId());
      usuario.put("nombre", Usuario.getNombre());
      usuario.put("nombres", Usuario.getNombres());
      usuario.put("apellido", Usuario.getApellido());
      usuario.put("apellidos", Usuario.getApellidos());
      usuario.put("email", Usuario.getEmail());
      usuario.put("fecha", Usuario.getFecha());
      usuario.put("nick", Usuario.getNick());
      usuario.put("pais", Usuario.getPais());
      usuario.put("biografia", Usuario.getBiografia());
      usuario.put("sexo", Usuario.getSexo());
      usuario.put("clave", Usuario.getClave());
      coleccionUsuario.insert(usuario);

    } else {
      System.out.println("coleccion no existente");
    }
  }
 @Before
 public void init() throws IOException {
   action = new MethodMsgAction();
   MapPubSub pubSub = new MapPubSub();
   DB db = initMongoDB();
   collection = db.getCollection("customer");
   collection.drop();
   BasicDBObject basicDBObject = new BasicDBObject();
   basicDBObject.put("_id", "testid");
   basicDBObject.put("testField", "pippo");
   collection.insert(basicDBObject);
   action.addInvoker(
       new MongoDBMethodInvoker(
           db,
           pubSub,
           new IdGenerator() {
             @Override
             public String generateCollectionID(String randomSeed) {
               return "fixed";
             }
           }));
   mockSession = new MockSession();
   session = new DDPSession(mockSession);
   pubSub.sub(
       new Sub() {
         {
           setName("customer");
         }
       },
       session);
 }
  public static void main(String args[]) throws IOException {
    DBCollection dbCollection = new MongoResource().getCollection();

    ProductReader productReader = new ProductReader();
    BasicDBObject product;
    System.out.println("Inserting products ...");
    List<DBObject> products = new ArrayList<DBObject>();
    while ((product = productReader.read()) != null) {
      products.add(product);
    }
    dbCollection.insert(products);
    System.out.println("Finished.");

    MetaDataReader metaDataReader = new MetaDataReader();
    BasicDBObject metadata;

    System.out.println("Creating index on itemNumber");
    dbCollection.ensureIndex("itemNumber");
    System.out.println("Finished creating index on itemNumber");

    System.out.println("Updating products ...");
    while ((metadata = metaDataReader.read()) != null) {
      BasicDBObject existingProduct = new BasicDBObject("itemNumber", metadata.get("itemNumber"));
      dbCollection.update(existingProduct, metadata, true, false);
    }
    System.out.println("Finished.");
  }
 private void batchInsertion(
     String argDatabaseName, Entity argEntity, DBCollection argDbCollection) {
   List<DBObject> dbObjectsList = new ArrayList<DBObject>();
   for (int i = 0; i < MongoActivityConstants.BATCH_SIZE; i++) {
     DBObject dbObject = getDbObject(argDatabaseName, argEntity);
     dbObjectsList.add(dbObject);
     if (MongoActivityConstants.BATCH_REQUESTS_SIZE == dbObjectsList.size()) {
       argDbCollection.insert(dbObjectsList, WriteConcern.FSYNC_SAFE);
       dbObjectsList = new ArrayList<DBObject>();
     }
   }
   // harvest the last dbobjects...
   if (dbObjectsList.size() > 0) {
     argDbCollection.insert(dbObjectsList, WriteConcern.FSYNC_SAFE);
   }
 }
 private void insertDocuments(
     String argDatabaseName, Entity argEntity, DBCollection argDbCollection) {
   for (int i = 0; i < MongoActivityConstants.BATCH_SIZE; i++) {
     DBObject dbObject = getDbObject(argDatabaseName, argEntity);
     argDbCollection.insert(dbObject, WriteConcern.FSYNC_SAFE);
   }
 }
  public JsonArray addPerfResults(String perfResults) {
    DBCollection coll = db.getCollection("performance");
    BasicDBObject newPerfResults = (BasicDBObject) JSON.parse(perfResults);
    newPerfResults.append("_id", newPerfResults.getString("name"));

    BasicDBObject query = new BasicDBObject();
    query.append("name", newPerfResults.getString("name"));

    BasicDBObject removeId = new BasicDBObject("_id", 0);
    DBCursor cursor = coll.find(query, removeId);

    JsonObjectBuilder objBuild = Json.createObjectBuilder();
    JsonArrayBuilder arrBuild = Json.createArrayBuilder();
    JsonObject json = objBuild.build();

    if (cursor.count() > 0) {
      LOG.info("Performance Results Found: ");
      BasicDBObject found = (BasicDBObject) cursor.next();
      json = Json.createReader(new StringReader(found.toString())).readObject();
      arrBuild.add(json);
    } else {
      LOG.info("New Performance Results Created: " + coll.insert(newPerfResults));
      json = Json.createReader(new StringReader(newPerfResults.toString())).readObject();
      arrBuild.add(json);
    }

    LOG.info(
        "----------------------------------- ARR BUILD -------------------------------------------------\n"
            + arrBuild.build().toString());

    return arrBuild.build();
  }
Example #27
0
 @Test
 public void testDropDatabaseAlsoDropsCollectionData() throws Exception {
   DBCollection collection = newCollection();
   collection.insert(new BasicDBObject());
   collection.getDB().dropDatabase();
   assertEquals("Collection should have no data", 0, collection.count());
 }
Example #28
0
 @Test
 public void testInsertDuplicateIgnored() {
   DBCollection collection = newCollection();
   collection.insert(new BasicDBObject("_id", 1));
   collection.insert(new BasicDBObject("_id", 1));
   assertEquals(1, collection.count());
 }
  public JsonArray updatePerfResults(String perfResults) {
    BasicDBObject doc = (BasicDBObject) JSON.parse(perfResults);
    doc.append("_id", doc.get("name"));

    DBCollection coll = db.getCollection("performance");
    BasicDBObject query = new BasicDBObject();

    query.put("_id", doc.get("name"));

    DBCursor cursor = coll.find(query);

    JsonObjectBuilder objBuild = Json.createObjectBuilder();
    JsonArrayBuilder arrBuild = Json.createArrayBuilder();
    JsonObject json = objBuild.build();

    if (cursor.count() > 0) {
      LOG.info("Performance Results Found and Updated: " + coll.update(query, doc, true, false));
      json = Json.createReader(new StringReader(perfResults)).readObject();
      return arrBuild.add(json).build();
    } else {
      LOG.info("Performance Results Created: " + coll.insert(doc));
      json = Json.createReader(new StringReader(perfResults)).readObject();
      return arrBuild.add(json).build();
    }
  }
  /*
   * (non-Javadoc)
   *
   * @see org.ow2.play.service.registry.api.Registry#put(java.lang.String,
   * java.lang.String)
   */
  @Override
  @WebMethod
  public void put(String name, String url) throws RegistryException {
    if (logger.isLoggable(Level.FINE)) {
      logger.fine(String.format("Put url %s for name %s", url, name));
    }
    checkInitialized();

    if (name == null || url == null) {
      throw new RegistryException("Can not put null values name = %s, url = %s", name, url);
    }

    // update the entry if it already exists
    DBObject filter = new BasicDBObject();
    filter.put(NAME_KEY, name);

    DBObject filtered = collection.findOne(filter);
    if (filtered != null) {
      filtered.put(URL_KEY, url);
      collection.save(filtered);
    } else {
      DBObject o = new BasicDBObject();
      o.put(NAME_KEY, name);
      o.put(URL_KEY, url);
      collection.insert(o);
    }
  }