本文整理汇总了C#中Microsoft.Build.Utilities.TaskLoggingHelper.LogWarningFromException方法的典型用法代码示例。如果您正苦于以下问题：C# TaskLoggingHelper.LogWarningFromException方法的具体用法？C# TaskLoggingHelper.LogWarningFromException怎么用？C# TaskLoggingHelper.LogWarningFromException使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Microsoft.Build.Utilities.TaskLoggingHelper的用法示例。
在下文中一共展示了TaskLoggingHelper.LogWarningFromException方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: RequestWithRetry
public static async Task<HttpResponseMessage> RequestWithRetry(TaskLoggingHelper loggingHelper, HttpClient client,
Func<HttpRequestMessage> createRequest, Func<HttpResponseMessage, bool> validationCallback = null, int retryCount = 5,
int retryDelaySeconds = 5)
{
if (loggingHelper == null)
throw new ArgumentNullException(nameof(loggingHelper));
if (client == null)
throw new ArgumentNullException(nameof(client));
if (createRequest == null)
throw new ArgumentNullException(nameof(createRequest));
if (retryCount < 1)
throw new ArgumentException(nameof(retryCount));
if (retryDelaySeconds < 1)
throw new ArgumentException(nameof(retryDelaySeconds));
int retries = 0;
HttpResponseMessage response = null;
// add a bit of randomness to the retry delay
var rng = new Random();
while (retries < retryCount)
{
if (retries > 0)
{
if (response != null)
{
response.Dispose();
response = null;
}
int delay = retryDelaySeconds * retries * rng.Next(1, 5);
loggingHelper.LogMessage(MessageImportance.Low, "Waiting {0} seconds before retry", delay);
await System.Threading.Tasks.Task.Delay(delay * 1000);
}
try
{
using (var request = createRequest())
response = await client.SendAsync(request);
}
catch (Exception e)
{
loggingHelper.LogWarningFromException(e, true);
// if this is the final iteration let the exception bubble up
if (retries + 1 == retryCount)
throw;
}
// response can be null if we fail to send the request
if (response != null)
{
if (validationCallback == null)
{
// check if the response code is within the range of failures
if (IsWithinRetryRange(response.StatusCode))
{
loggingHelper.LogWarning("Request failed with status code {0}", response.StatusCode);
}
else
{
loggingHelper.LogMessage(MessageImportance.Low, "Response completed with status code {0}", response.StatusCode);
return response;
}
}
else
{
bool isSuccess = validationCallback(response);
if (!isSuccess)
{
loggingHelper.LogMessage("Validation callback returned retry for status code {0}", response.StatusCode);
}
else
{
loggingHelper.LogMessage("Validation callback returned success for status code {0}", response.StatusCode);
return response;
}
}
}
++retries;
}
// retry count exceeded
loggingHelper.LogWarning("Retry count {0} exceeded", retryCount);
// set some default values in case response is null
var statusCode = "None";
var contentStr = "Null";
if (response != null)
{
statusCode = response.StatusCode.ToString();
contentStr = await response.Content.ReadAsStringAsync();
response.Dispose();
}
throw new HttpRequestException(string.Format("Request failed with status {0} response {1}", statusCode, contentStr));
}