/**
* 按条件查询出单个对象
*
* @param tableName
* @param timeValue
* @param appId
* @param appVersion
* @param appChannel
* @param appPlatform
* @param tenantId
* @param network
* @param carrier
* @return
*/
public Document findOneBy(
String tableName,
String timeValue,
String appId,
String appVersion,
String appChannel,
String appPlatform,
String network,
String carrier,
String tenantId) {
MongoDatabase db = mongoClient.getDatabase(appId);
Document matchFields = new Document();
matchFields.put("timeValue", timeValue);
matchFields.put("appVersion", appVersion);
matchFields.put("appChannel", appChannel);
matchFields.put("appPlatform", appPlatform);
matchFields.put("network", network);
matchFields.put("carrier", carrier);
if (tenantId != null && !tenantId.trim().isEmpty()) {
matchFields.put("tenantId", tenantId);
} else { // 当相同的条件下有tenantId对应一条数据，无tenantId对应一条数据，所以要加上matchFields.put("tenantId",
// null);，以免查询出两条数据，会照成结果错误
matchFields.put("tenantId", null);
}
FindIterable<Document> iterable = db.getCollection(tableName).find(matchFields);
if (iterable.iterator().hasNext()) {
return iterable.first();
} else {
return null;
}
}
public Document findBy(String appId, String deviceId) {
MongoDatabase db = mongoClient.getDatabase(appId);
FindIterable<Document> iterable =
db.getCollection("Widget").find(new Document("deviceId", deviceId));
if (iterable.iterator().hasNext()) {
return iterable.first();
} else {
return null;
}
}
@Override
public SensorTypeInfo read(SensorType id) {
SensorTypeInfo zettaDriver = new SensorTypeInfo();
zettaDriver.setType(id.getCode());
zettaDriver.setTypeName(id.getName());
MongoCollection<Document> collection = CloudMongoDB.getInstance().getCollection("Drivers");
// finds in database
FindIterable<Document> users = collection.find(new Document("type", id.getCode()));
SensorTypeInfo sensorInfo = SensorTypeInfoInstanceCreator.createInstance(users.first());
// System.out.println(sensorInfo);
return sensorInfo;
}
/** Read user account from DB */
public static UserAccount readFromDb(String userId) {
if (!useMongoDB) {
if (virtualDB.containsKey(userId)) {
return virtualDB.get(userId);
}
return null;
}
if (db == null) {
try {
connect();
} catch (ParseException e) {
e.printStackTrace();
}
}
FindIterable<Document> iterable =
db.getCollection("user_accounts").find(new Document("userID", userId));
if (iterable == null) {
return null;
}
Document doc = iterable.first();
return new UserAccount(userId, doc.getString("userName"), doc.getString("additionalInfo"));
}
public static Document meepDocumentBuilder(JsonObject arg, MongoCollection<Document> meepCol) {
Document meep = new Document();
if (arg.get("coordinates").isJsonNull()) return null;
double longi =
arg.getAsJsonObject("coordinates").getAsJsonArray("coordinates").get(0).getAsDouble();
double lat =
arg.getAsJsonObject("coordinates").getAsJsonArray("coordinates").get(1).getAsDouble();
BasicDBObject aux = getCloseMeepsQuery(lat, longi);
FindIterable<Document> auxCol = meepCol.find(aux);
if (auxCol.first() != null) {
System.out.println("Received valid tweet but too close to another");
return null;
}
meep.append(
"senderName", arg.getAsJsonObject("user").getAsJsonPrimitive("screen_name").getAsString());
System.out.println(
"Received valid tweet at "
+ lat
+ ","
+ longi
+ " posted by "
+ meep.getString("senderName"));
meep.append("senderId", arg.getAsJsonObject("user").getAsJsonPrimitive("id").getAsInt());
meep.append(
"twitterUserPicture",
arg.getAsJsonObject("user").getAsJsonPrimitive("profile_image_url").getAsString());
meep.append("message", arg.getAsJsonPrimitive("text").getAsString());
meep.append("type", "tweet");
meep.append("isRoot", true);
meep.append("commentCounter", 0);
meep.append("likeCounter", 0);
meep.append("viewCounter", 0);
/*if(arg.getAsJsonObject("entities").has("media"))
meep.append("picture", arg.getAsJsonObject("entities").getAsJsonObject("media").get("media_url").getAsString());
else*/
meep.append("picture", null);
BasicDBList list = new BasicDBList();
list.add(longi);
list.add(lat);
Document jobj = new Document();
jobj.append("type", "Point");
jobj.append("coordinates", list);
meep.append("location", jobj);
BasicDBList comments = new BasicDBList();
meep.append("comments", comments);
BasicDBList receipts = new BasicDBList();
meep.append("receipts", receipts);
BasicDBList registrees = new BasicDBList();
meep.append("registrees", registrees);
BasicDBList likes = new BasicDBList();
meep.append("likes", likes);
meep.append("categoryId", Category.TWITTER.getId());
BasicDBList hashtags = new BasicDBList();
HashtagController controller = new HashtagController();
LinkedList<String> aux2 =
controller.extractHashtags(arg.getAsJsonPrimitive("text").getAsString());
for (String s : aux2) hashtags.add(s);
meep.append("hashtags", hashtags);
meep.append("isPublic", true);
return meep;
}