/// <summary>
/// 创建 <see cref="RequestCounter"/> 实例
/// </summary>
/// <param name="tagInfo">Tag信息</param>
/// <param name="urlItem">所属Url项</param>
public RequestCounter(RequestTagInfo tagInfo, UrlItem urlItem)
{
if (tagInfo == null) throw new ArgumentNullException("tagInfo");
if (urlItem == null) throw new ArgumentNullException("urlItem");
this.tagInfo = tagInfo;
this.urlItem = urlItem;
}
/// <summary>
/// 取得所有项
/// </summary>
public UrlItem[] GetAllItems()
{
cacheLock.EnterReadLock();
var target = new UrlItem[cache.Count];
try
{
cache.Values.CopyTo(target, 0);
}
catch
{ }
finally
{
cacheLock.ExitReadLock();
}
return target;
}
/// <summary>
/// 注册
/// </summary>
/// <param name="traceInfo">跟踪信息</param>
public RequestCounter Register(UrlTraceInfo traceInfo)
{
if (traceInfo == null)
throw new ArgumentNullException("traceInfo");
string key = string.Concat(traceInfo.HostAddress, "|", traceInfo.FilePath);
UrlItem item;
cacheLock.EnterReadLock();
cache.TryGetValue(key, out item);
cacheLock.ExitReadLock();
if (item == null)
{
cacheLock.EnterWriteLock();
cache.TryGetValue(key, out item);
if (item == null)
{
try
{
item = new UrlItem(traceInfo);
cache.Add(key, item);
}
catch
{ }
finally
{
cacheLock.ExitWriteLock();
}
}
else
{
cacheLock.ExitWriteLock();
}
}
return item.GetCounter(traceInfo);
}
private RequestStatInfo GetMetricInfoByUrl(UrlItem item, DateTime minute)
{
//统计各区间的请求次数
var requestCount = 0L;
var requestRanges = new Dictionary<Dictionary<string, string>, long>();
foreach (var counter in item.GetAllCounters())
{
var count = (long)AggregateHelper.GetDoubles(MetricNames.Namespace, MetricNames.HttpRequest_Count, counter.TagInfo.FullTags, minute, minute, AggregateType.SUM)[0].GetValueOrDefault();
if (count > 0)
{
requestRanges.Add(counter.TagInfo.FullTags, count);
requestCount += count;
}
}
//无请求时忽略统计
if (requestCount == 0)
return null;
var statInfo = new RequestStatInfo();
statInfo.RequestCount = requestCount;
statInfo.RequestCountByRange = requestRanges;
//统计请求耗时
var reqCost = AggregateHelper.GetDoubles(MetricNames.Namespace, MetricNames.HttpRequest_Cost, item.Tags, minute, minute, AggregateType.MAX, AggregateType.MIN, AggregateType.AVG, AggregateType.SUM);
statInfo.RequestCostMax = Round(reqCost[0], 2);
statInfo.RequestCostMin = Round(reqCost[1], 2);
statInfo.RequestCostAvg = Round(reqCost[2], 2);
statInfo.RequestCostSum = reqCost[3];
//统计请求内容大小
var reqSize = AggregateHelper.GetDoubles(MetricNames.Namespace, MetricNames.HttpRequest_Size, item.Tags, minute, minute, AggregateType.MAX, AggregateType.MIN, AggregateType.AVG, AggregateType.SUM);
statInfo.RequestSizeMax = (long?)reqSize[0];
statInfo.RequestSizeMin = (long?)reqSize[1];
statInfo.RequestSizeAvg = (long?)reqSize[2];
statInfo.RequestSizeSum = (long?)reqSize[3];
//统计响应内容大小
var respSize = AggregateHelper.GetDoubles(MetricNames.Namespace, MetricNames.HttpResponse_Size, item.Tags, minute, minute, AggregateType.MAX, AggregateType.MIN, AggregateType.AVG, AggregateType.SUM);
statInfo.ResponseSizeMax = (long?)respSize[0];
statInfo.ResponseSizeMin = (long?)respSize[1];
statInfo.ResponseSizeAvg = (long?)respSize[2];
statInfo.ResponseSizeSum = (long?)respSize[3];
statInfo.StatTime = minute;
statInfo.Tags = new Dictionary<string,string>(item.Tags);
return statInfo;
}
