/// <summary>
/// 获取MessageContext，如果不存在，返回null
/// 这个方法的更重要意义在于操作TM队列，及时移除过期信息，并将最新活动的对象移到尾部
/// </summary>
/// <param name="userName">用户名（OpenId）</param>
/// <returns></returns>
private TM GetMessageContext(string userName)
{
//检查并移除过期记录，为了尽量节约资源，这里暂不使用独立线程轮询
while (MessageQueue.Count > 0)
{
var firstMessageContext = MessageQueue[0];
var timeSpan = DateTime.Now - firstMessageContext.LastActiveTime;
if (timeSpan.TotalMinutes >= ExpireMinutes)
{
MessageQueue.RemoveAt(0); //从队列中移除过期对象
MessageCollection.Remove(firstMessageContext.UserName); //从集合中删除过期对象
//添加事件回调
firstMessageContext.OnRemoved();//TODO:此处异步处理，或用户在自己操作的时候异步处理需要耗费时间比较长的操作。
}
else
{
break;
}
}
/*
* 全局只有在这里用到MessageCollection.ContainsKey
* 充分分离MessageCollection内部操作，
* 为以后变化或扩展MessageCollection留余地
*/
if (!MessageCollection.ContainsKey(userName))
{
return(null);
}
return(MessageCollection[userName]);
}
private static void SendMessage(SenderObjectRelation senderObjectRelation)
{
Application.Current.Dispatcher.Invoke(delegate
{
if (senderObjectRelation.Group == null)
{
if (!MessageCollection.ContainsKey(senderObjectRelation.SenderId))
{
MessageCollection.Add(senderObjectRelation.SenderId, new ObservableCollection <Message>());
}
User friend = Friends.SingleOrDefault(f => f.Id == senderObjectRelation.SenderId);
MessageCollection[senderObjectRelation.SenderId].Add((Message)senderObjectRelation.Data);
IncomingText?.Invoke(senderObjectRelation);
}
else
{
Group group = Group.groups.SingleOrDefault(g => g.Id == senderObjectRelation.DestinationId);
User friend = Friends.SingleOrDefault(f => f.Id == senderObjectRelation.SenderId);
if (friend == null)
{
friend = new User(senderObjectRelation.SenderId);
}
group.Messages.Add(new Message(friend, senderObjectRelation.Data.ToString(), DateTime.Now));
IncomingText?.Invoke(senderObjectRelation, group);
}
});
}
public void Message()
{
Service service = Connect();
MessageCollection messageCollection = service.GetMessages();
if (messageCollection.ContainsKey("sdk-test-message1"))
{
messageCollection.Remove("sdk-test-message1");
}
Assert.IsFalse(messageCollection.ContainsKey("sdk-test-message1"), this.assertRoot + "#1");
if (messageCollection.ContainsKey("sdk-test-message2"))
{
messageCollection.Remove("sdk-test-message2");
}
Assert.IsFalse(messageCollection.ContainsKey("sdk-test-message2"), this.assertRoot + "#2");
messageCollection.Create("sdk-test-message1", "hello.");
Assert.IsTrue(messageCollection.ContainsKey("sdk-test-message1"), this.assertRoot + "#3");
Message message = messageCollection.Get("sdk-test-message1");
Assert.AreEqual("sdk-test-message1", message.Key, this.assertRoot + "#4");
Assert.AreEqual("hello.", message.Value, this.assertRoot + "#5");
Args args2 = new Args();
args2.Add("value", "world.");
messageCollection.Create("sdk-test-message2", args2);
Assert.IsTrue(messageCollection.ContainsKey("sdk-test-message2"), this.assertRoot + "#6");
message = messageCollection.Get("sdk-test-message2");
Assert.AreEqual("sdk-test-message2", message.Key, this.assertRoot + "#7");
Assert.AreEqual("world.", message.Value, this.assertRoot + "#8");
messageCollection.Remove("sdk-test-message1");
Assert.IsFalse(messageCollection.ContainsKey("sdk-test-message1"), this.assertRoot + "#9");
messageCollection.Remove("sdk-test-message2");
Assert.IsFalse(messageCollection.ContainsKey("sdk-test-message2"), this.assertRoot + "#10");
}
/// <summary>
/// 获取MessageContext，如果不存在，返回null
/// 这个方法的更重要意义在于操作TM队列，及时移除过期信息，并将最新活动的对象移到尾部
/// </summary>
/// <param name="userName">用户名（OpenId）</param>
/// <returns></returns>
private TM GetMessageContext(string userName)
{
while (MessageQueue.Count > 0)
{
TM val = MessageQueue[0];
TimeSpan timeSpan = DateTime.Now - (val.LastActiveTime.HasValue ? val.LastActiveTime.Value : DateTime.Now);
double num = val.ExpireMinutes.HasValue ? val.ExpireMinutes.Value : ExpireMinutes;
if (!(timeSpan.TotalMinutes >= num))
{
break;
}
MessageQueue.RemoveAt(0);
MessageCollection.Remove(val.UserName);
val.OnRemoved();
}
if (!MessageCollection.ContainsKey(userName))
{
return(null);
}
return(MessageCollection[userName]);
}
/// <summary>
/// 获取MessageContext，如果不存在，返回null
/// 这个方法的更重要意义在于操作TM队列，及时移除过期信息，并将最新活动的对象移到尾部
/// </summary>
/// <param name="userName">用户名（OpenId）</param>
/// <returns></returns>
private TM GetMessageContext(string userName)
{
//检查并移除过期记录，为了尽量节约资源，这里暂不使用独立线程轮询
while (MessageQueue.Count > 0)
{
var firstMessageContext = MessageQueue[0];
var timeSpan = DateTime.Now - firstMessageContext.LastActiveTime;
//确定对话过期时间
var expireMinutes = firstMessageContext.ExpireMinutes.HasValue
? firstMessageContext.ExpireMinutes.Value //队列自定义事件
: this.ExpireMinutes; //全局统一默认时间
//TODO:这里假设按照队列顺序过期，实际再加入了自定义过期时间之后，可能不遵循这个规律 —— Jeffrey Su 2018.1.23
if (timeSpan.TotalMinutes >= expireMinutes)
{
MessageQueue.RemoveAt(0); //从队列中移除过期对象
MessageCollection.Remove(firstMessageContext.UserName); //从集合中删除过期对象
//添加事件回调
firstMessageContext.OnRemoved();//TODO:此处异步处理，或用户在自己操作的时候异步处理需要耗费时间比较长的操作。
}
else
{
break;
}
}
/*
* 全局只有在这里用到MessageCollection.ContainsKey
* 充分分离MessageCollection内部操作，
* 为以后变化或扩展MessageCollection留余地
*/
if (!MessageCollection.ContainsKey(userName))
{
return(null);
}
return(MessageCollection[userName]);
}
