public bool TopicExists(string topicName)
{
MQTTModel mqtt = new MQTTModel();
var topics = from t in mqtt.Topics where t.TopicName == topicName where t.Account.ID == defaultAccount.ID select t;
return(topics.Count() > 0);
}
public void StoreTopic(string topicName, QOS qos)
{
MQTTModel model = new MQTTModel();
var topics = from t in model.Topics where t.TopicName == topicName where t.Account.ID == defaultAccount.ID select t;
if (topics.Count() > 0)
{
Topic currTopic = topics.First();
currTopic.QOS = qos;
model.Topics.Attach(currTopic);
var entry = model.Entry(currTopic);
entry.Property(t => t.QOS).IsModified = true;
model.SaveChanges();
}
else
{
Topic newTopic = new Topic();
newTopic.QOS = qos;
newTopic.TopicName = topicName;
newTopic.Account = defaultAccount;
model.Accounts.Attach(defaultAccount);
model.Topics.Add(newTopic);
model.Entry(defaultAccount).State = EntityState.Unchanged;
model.SaveChanges();
}
}
public void UnmarkAsDefault(Account account)
{
MQTTModel mqtt = new MQTTModel();
account.IsDefault = false;
mqtt.Accounts.Attach(account);
var entry = mqtt.Entry(account);
entry.Property(a => a.IsDefault).IsModified = true;
mqtt.SaveChanges();
}
public void DeleteTopic(string topicName)
{
MQTTModel mqtt = new MQTTModel();
var topics = from t in mqtt.Topics where t.TopicName == topicName where t.Account.ID == defaultAccount.ID select t;
if (topics.Count() > 0)
{
mqtt.Topics.Remove(topics.First());
}
mqtt.SaveChanges();
}
public void DeleteAllTopics()
{
MQTTModel mqtt = new MQTTModel();
var topics = from t in mqtt.Topics where t.Account.ID == defaultAccount.ID select t;
if (topics.Count() > 0)
{
mqtt.Topics.RemoveRange(topics);
}
mqtt.SaveChanges();
}
public List <mqtt.avps.Topic> GetAllTopics()
{
MQTTModel mqtt = new MQTTModel();
var topics = from t in mqtt.Topics where t.Account.ID == defaultAccount.ID select t;
List <mqtt.avps.Topic> result = new List <iotbroker.mqtt.avps.Topic>();
foreach (var currTopic in topics)
{
result.Add(new mqtt.avps.Topic(currTopic.TopicName, currTopic.QOS));
}
return(result);
}
public void StoreMessage(string topicName, byte[] content, QOS qos)
{
Message newMessage = new Message();
newMessage.QOS = qos;
newMessage.Content = content;
newMessage.TopicName = topicName;
newMessage.Incoming = true;
newMessage.Account = defaultAccount;
MQTTModel model = new MQTTModel();
model.Accounts.Attach(defaultAccount);
model.Messages.Add(newMessage);
model.Entry(defaultAccount).State = EntityState.Unchanged;
model.SaveChanges();
}