/// <summary>
/// get the value from the counter and path.
/// path should be a string splited by dot, like BugQuality.TableQuality.TableBugFixRate
/// return null if such path doesn't exist
/// </summary>
/// <param name="record"></param>
/// <param name="path"></param>
/// <returns></returns>
public static CounterRecord.ComplexValue Get(CounterRecord record, string path)
{
if (record == null || record.Value == null || string.IsNullOrEmpty(path))
{
return(null);
}
string[] names = path.Split('.');
CounterRecord.ComplexValue cur = record.Value;
foreach (string name in names)
{
if (cur.RelatedValues == null || cur.RelatedValues.Count == 0)
{
return(null);
}
foreach (var value in cur.RelatedValues)
{
if (value != null && name.Equals(value.Name))
{
cur = value;
break;
}
}
if (cur.Name != name)
{
return(null);
}
}
return(cur == null ? null : cur);
}
public static CounterRecord ParseEntity(DynamicTableEntity entity)
{
CounterRecord record = new CounterRecord(entity.Properties["Key"].StringValue);
byte[] bin = Utils.GetBinFromEntity(entity);
if (bin == null || bin.Length == 0)
{
return(record);
}
using (Stream stream = new MemoryStream(bin))
{
record.Value = new BinaryFormatter().Deserialize(stream) as CounterRecord.ComplexValue;
}
return(record);
}
public static DynamicTableEntity ToTableEntity(CounterRecord record, string pk, string rk)
{
DynamicTableEntity entity = new DynamicTableEntity(pk, rk);
entity.Properties["Key"] = new EntityProperty(record.Key);
entity.Properties["Timestamp"] = new EntityProperty(DateTimeOffset.UtcNow);
//Serialize ComplexValue Value
using (MemoryStream mstream = new MemoryStream())
{
new BinaryFormatter().Serialize(mstream, record.Value);
byte[] bin = mstream.ToArray();
if (!Utils.AttachBin2Entity(entity, bin))
{
throw new CounterTooLargeException();
}
}
return(entity);
}
public static object GetValue(CounterRecord record, string path)
{
CounterRecord.ComplexValue cur = CounterRecordHelper.Get(record, path);
return(cur == null ? null : cur.Value);
}