我使用 Azure 表存储作为语义日志记录应用程序块的数据接收器。当我调用由我的自定义
EventSource
编写的日志时,我得到类似于 ff.: 的列
我可以通过创建一个与列名称完全匹配的
TableEntity
类来获取这些列(由于某种原因,EventId
除外):
public class ReportLogEntity : TableEntity
{
public string EventId { get; set; }
public string Payload_username { get; set; }
public string Opcode { get; set; }
}
但是,我想将这些列中的数据存储在我的
TableEntity
中不同命名的属性中:
public class ReportLogEntity : TableEntity
{
public string Id { get; set; } // maps to "EventId"
public string Username { get; set; } // maps to "Payload_username"
public string Operation { get; set; } // maps to "Opcode"
}
我可以使用映射器/属性来让自己的列名称不同于
TableEntity
属性名称吗?
您可以重写接口 ITableEntity 的 ReadEntity 和 WriteEntity 方法来自定义您自己的属性名称。
public class ReportLogEntity : TableEntity
{
public string PartitionKey { get; set; }
public string RowKey { get; set; }
public string Id { get; set; } // maps to "EventId"
public string Username { get; set; } // maps to "Payload_username"
public string Operation { get; set; } // maps to "Opcode"
public override void ReadEntity(IDictionary<string, EntityProperty> properties, OperationContext operationContext)
{
this.PartitionKey = properties["PartitionKey"].StringValue;
this.RowKey = properties["RowKey"].StringValue;
this.Id = properties["EventId"].StringValue;
this.Username = properties["Payload_username"].StringValue;
this.Operation = properties["Opcode"].StringValue;
}
public override IDictionary<string, EntityProperty> WriteEntity(OperationContext operationContext)
{
var properties = new Dictionary<string, EntityProperty>();
properties.Add("PartitionKey", new EntityProperty(this.PartitionKey));
properties.Add("RowKey", new EntityProperty(this.RowKey));
properties.Add("EventId", new EntityProperty(this.Id));
properties.Add("Payload_username", new EntityProperty(this.Username));
properties.Add("Opcode", new EntityProperty(this.Operation));
return properties;
}
}
您可以使用
DataMember
属性来实现此目的:
public class ReportLogEntity : TableEntity
{
[System.Runtime.Serialization.DataMember(Name = "EventId")]
public string Id { get; set; }
[System.Runtime.Serialization.DataMember(Name = "Payload_username")]
public string Username { get; set; }
[System.Runtime.Serialization.DataMember(Name = "Opcode")]
public string Operation { get; set; }
}