在Azure中检索聊天Bot对话数据

时间:2018-04-17 11:17:02

标签: c# azure-storage botframework azure-table-storage azure-cognitive-services

首先简要介绍:Bot框架将对话数据存储在Azure表/ Cosmos DB(我的情况下为Azure表)的存储中。对于每个对话,Azure表中都有一个条目,其中包含时间戳,用户ID,对话消息和其他详细信息。

我正在尝试使用C#中的自定义代码从Azure表存储中检索对话详细信息,如下所示。

Microsoft.WindowsAzure.Storage.CloudStorageAccount storageAccount = Microsoft.WindowsAzure.Storage.CloudStorageAccount.Parse(connectionString);
Microsoft.WindowsAzure.Storage.Table.CloudTableClient tableClient = storageAccount.CreateCloudTableClient();
CloudTable table = tableClient.GetTableReference("botdata");
TableQuery<DynamicTableEntity> projectionQuery = new TableQuery<DynamicTableEntity>().Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, "directline:user"));
var dataRow = table.ExecuteQuery(projectionQuery).Where(q => q.RowKey == "souvik").FirstOrDefault();
var conversation = Encoding.UTF8.GetString(dataRow.Properties["Data"].BinaryValue);
Console.WriteLine(conversation);

当我在Azure表存储中检索以二进制格式存储的数据时,我得到了一些乱码文本,类似于这个 - \u001f�\b\0\0\0\0\0\u0004\0��\u0005\0C���\u0002\0\0\0。数据类似于Azure存储资源管理器中显示的内容 -

enter image description here

我已经尝试并测试了每个对话,并且我已经看到每次我键入并向bot发送数据并获得响应时,新记录将以正确的时间戳添加到Azure表中。这是检索数据的正确方法还是我做错了什么?如果我可以添加更多详细信息,请与我们联系。

更新-1:

我已经提到了这个问题 - How to retrieve Saved Conversation Data in Azure (Tablelogger),但对我的问题没有多大帮助。

更新-2

根据Fei在下面的回答,我刚注意到当我使用PartitionKey作为directline:userdirectline:conversation时,我将反序列化的值设为{},但如果我使用{{} 1}}我得到像这样的东西 -

directline:private

我觉得上面JSON中的{"ResumptionContext":{"locale":"en-US","isTrustedServiceUrl":true}, "DialogState":"H4sIAAAAAAAEAO1a328iVRRmYGYKbTfbdZtNzLq7GM26DWS2FGi7MVUptUrcVi1VYxrSvcCFjh1mmrl3quyjb74YEx+N/hW+uzFxE/8KX9fsH6HnzAxQ7A8GhHpZoemBDs O953znO+d+99KQFAqF/oIHPuNjNgzm8y29YlvMqnFt3YJfRzeq1E7GP6U20y1zLa2llrQlLZOM5x2DOzZdM6nDbWIk4x85ZUOvfECbu9YhhTtT5Vp6NbtMqunlDE1nFZznF+nM8bWCyaltEoNpm 3oZpvKeHqX29s6+f0MnhlVnJz7nXdkl7DAZH1kMpVIEglAYJ5VDtWaTBmXKl0TnLCLLT8LFJuO0oeUtw6AVDjMx7T1qUluvaA91xs+P5lT0hU0cW8DwRzo4CYhOESAlhv6YIMaJIrdsWjAhJ2aF rjd3m0e06Ni2VSecJj4sfwGp2KE1alN4Gxl+ObPgbwzJEpPRKGBk/HPCkmFUoLqvA4ZM2Wf6YxrdP/aGBaR/DdpfhMVur4TUiUZjqs8i5I8iXwpxsUPLeEfkjs/ST0ydN7sGfN/CWV16T4GRFN /FWBTMFDodkvxL8pOxz4YbZwzNNJgrYRlj7gUOMlTeIJzE3DsQ0NkcY7RRNprbEKcUkqLqDNz0NPBqiPBskgrksikgSphsdXak6kFy6YXzXAHzW1DgPoPFWWzcYoibEutLGwlcLHKD2Icyai JZvpyV9odwH1x4tCQaask9v5t4oSXjDVaxbEMvd0bPaIv403vw8soKyVayy6kH6QxdXH3gpcTtYVfRzGFzxkbmdrRraF7CS1dbPfw6cnFuAmpvUGWbMi6blFZlOTBYO/CZ/yNYiYD4bAOcbcb OIxefw/60n0+j9Jg6JoZD9/dD0bAvRhSk+tNxp3T32HnLNCkubFphizJG6jQHu4lj0Bv/9KJ95xC7/An2B8ZVVPYLhOtAhXIDWf4nFMpz/zBHwqZ+rf3Ws5NvXW/JqJdDfeyWth3DcMtCPNHR 0VDz/axbopJxlK3Y3Zdw0FMqJ3adcrVB+YFVjcg9t3s/nUOUi3BK7B445iHg7HhiddSLzH1/AhCH/sGKtgVbLmoXzJp13hb2JppX0NxCCt3oZ50QlUKC9LPB2fb7ENgmCAgDE/M2mjto4ti2b 7ba9quTJndxK+isB1jWojcuXJNV251K/qaHr55HuRr3vhi5lG3ja1jEtwYgMZJVxsOurpOvWN4gjLmvinrdJOjWdPvV0rQ3JG755/wz8Zxdh6BNziR8hCLRK74jeNNeSX0d50GeuzlX745BztU 3wMmvI604DmxKqrpZ19AP5lrwIOjBqa/K+o+4VIojbPcCn9D6X8gNMNM5zWSQBnSGYwVAEfzqyhhMeQrePJ4nGYbLUTc1C+o9SMQz5eJE9JsJwZrtaL+LGYxCYwLRcPk50pYSiO54gj4t3W4piY WJ1h2azOuIDpRsL5B+PalPfu5PnwgSQVvKJFBHo5hGOaMmu3WD9mKlTb0P8fw4kRjDbeFBkxtQfSxCjr5XJ+pjoj4uQX0I0piCCxUFt54CbYkHP876tkcQ+QOim4mHlnXkXRH2sDSFZglNGsxsBs zax2YOYur4lQrql+kYhoJr8njKisHpcLfbryJpHBlU83DUdiyLe4FnBs1SFs0ymhVUPKmW3l8Vq546khkZJVqNoO6dzkE3rdAqNbncR9LCLfyldEtsvglmxseWNc2KpznXBIxbfQuc+k66QJTET8 RxztrbXrm8F1B5nH7Fe65zOfyvIVI26KnTnAX1bXDrj//erZFi72/Qs62CfWdsm2OntrEOAtYO3BnC+pFWWmWzDmbe93wHKlE/plU3wWr+Xy896kZwz9R33UxcxL6zvBwdDQNvRBbUTdxkhMVxXRSKesU28zeNVmRMBTMAAA=="}数据需要解密?

对于我输入的每封邮件和收到的响应,Azure表中插入了三条记录,每条记录都有不同的DialogState,分别是PartitionKeydirectline:private和{{1 }}

3 个答案:

答案 0 :(得分:1)

Azure Table Storage中的二进制数据存储为Base64 encoded string。您需要做的是首先将此字符串转换为字节,然后从这些字节中获取字符串。

类似的东西:

var conversation = Encoding.UTF8.GetString(Convert.FromBase64String(dataRow.Properties["Data"].BinaryValue));

答案 1 :(得分:1)

如果您想使用WindowsAzure.Storage client library从表存储中退出实体并从 数据属性 中提取数据,则可以参考以下代码。

CloudStorageAccount storageAccount = CloudStorageAccount.Parse("DefaultEndpointsProtocol=https;AccountName={your_account_name};AccountKey={your_account_key};EndpointSuffix=core.windows.net");

CloudTableClient tableClient = storageAccount.CreateCloudTableClient();

CloudTable table = tableClient.GetTableReference("botdata");

TableQuery<MessageEntity> query = new TableQuery<MessageEntity>().Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, "emulator:user"));

foreach (MessageEntity entity in table.ExecuteQuery(query))
{
    string mydata = "";
    using (var msi = new MemoryStream(entity.Data))
    using (var mso = new MemoryStream())
    {
        using (var gs = new GZipStream(msi, CompressionMode.Decompress))
        {
            gs.CopyTo(mso);
        }
        mydata = Encoding.UTF8.GetString(mso.ToArray());
    }

    object data = JsonConvert.DeserializeObject(mydata);

    //.....

}

MessageEntity:

public class MessageEntity : TableEntity
{
    public MessageEntity(string pk, string rk)
    {
        this.PartitionKey = pk;
        this.RowKey = rk;
    }

    public MessageEntity() { }

    public string BotId { get; set; }
    public string ChannelId { get; set; }
    public string ConversationId { get; set; }
    public byte[] Data { get; set; }
    public string UserId { get; set; }
}

测试结果:

enter image description here

注意:

  • source code中, 您可以在 数据属性 中定义为byte[] BotDataEntity 类。
  • 在JasonSowers的回复中,他分享了有关 数据属性 的序列化和反序列化的信息。

答案 2 :(得分:0)

我假设您使用的是botbuilder-azure软件包

请勿在对话框中执行此操作,因为您只能访问context对象中的相同数据。它恰好是我编写代码的地方

实际上这很简单:

private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<object> result)
{
    var activity = await result as Activity;

    IBotDataStore<BotData> table = new TableBotDataStore(ConfigurationManager.ConnectionStrings["StorageConnectionString"].ConnectionString);

//use the type of state data you need
    var userData = await table.LoadAsync(Address.FromActivity(activity), BotStoreType.BotUserData, CancellationToken.None );
    var privateConvoData = await table.LoadAsync(Address.FromActivity(activity), BotStoreType.BotPrivateConversationData, CancellationToken.None );
    var convoData = await table.LoadAsync(Address.FromActivity(activity), BotStoreType.BotConversationData, CancellationToken.None);

//in this case I am just replying with the data, but do what you need with it here
    var reply = activity.CreateReply(userData.Data.ToString());
    var reply2 = activity.CreateReply(privateConvoData.Data.ToString());
    var reply3 = activity.CreateReply(convoData.Data.ToString());

    await context.PostAsync(reply);
    await context.PostAsync(reply2);
    await context.PostAsync(reply3);

    context.Wait(MessageReceivedAsync);
}

如果您在botbuilder-azure的来源中注意到有serialize和反序列化方法。发生这种情况的地方:

private byte[] Serialize(object data)
{
    using (var cmpStream = new MemoryStream())
    using (var stream = new GZipStream(cmpStream, CompressionMode.Compress))
    using (var streamWriter = new StreamWriter(stream))
    {
        var serializedJSon = JsonConvert.SerializeObject(data, serializationSettings);
        streamWriter.Write(serializedJSon);
        streamWriter.Close();
        stream.Close();
        return cmpStream.ToArray();
    }
}

所以你需要的数据被压缩成&#34; jibberish&#34;你看到了。通过LoadAsync方法访问数据时,它也会像这样解压缩:

private object Deserialize(byte[] bytes)
{
    using (var stream = new MemoryStream(bytes))
    using (var gz = new GZipStream(stream, CompressionMode.Decompress))
    using (var streamReader = new StreamReader(gz))
    {
        return JsonConvert.DeserializeObject(streamReader.ReadToEnd());
    }
}

反序列化在return statement LoadAsync中的return new BotData(entity.ETag, entity.GetData());方法内调用它是GetData()方法,如下所示:

internal ObjectT GetData<ObjectT>()
{
    return ((JObject)Deserialize(this.Data)).ToObject<ObjectT>();
}