public async Task <bool> IsActiveAsync(string featureName)
{
var active = false;
var headerName = await _runtimeParameterAccessor
.GetValueAsync <string>(featureName, _descriptors[0]);
var percentage = await _runtimeParameterAccessor
.GetValueAsync <double>(featureName, _descriptors[1]);
if (headerName != null)
{
var headerValues = _httpContextAccessor.HttpContext.Request
.Headers[headerName];
var value = headerValues[0] ?? DEFAULT_HEADER_VALUE;
var assignedPartition = JenkinsPartitioner.ResolveToLogicalPartition(value, NUMBER_OF_PARTITIONS);
return(assignedPartition <= ((NUMBER_OF_PARTITIONS * percentage) / 100));
}
else
{
_logger.LogWarning($"The header name {_descriptors[0].Name} for feature {featureName} on RollupHeaderValueActivator is not configured correctly.");
}
return(active);
}
public async Task <bool> IsActiveAsync(string featureName)
{
var percentage = await _runtimeParameterAccessor
.GetValueAsync <double>(featureName, _descriptors[0]);
var username = await _userProvider
.GetUserNameAsync() ?? ANONYMOUS_USER;
var assignedPartition = JenkinsPartitioner.ResolveToLogicalPartition(username, NUMBER_OF_PARTITIONS);
return(assignedPartition <= ((NUMBER_OF_PARTITIONS * percentage) / 100));
}
public static short ResolveToLogicalPartition(string value, short entityPartitionCount)
{
if (value == null)
{
return(0);
}
uint hash1;
uint hash2;
JenkinsPartitioner.ComputeHash(Encoding.ASCII.GetBytes(value.ToUpper()), 0U, 0U, out hash1, out hash2);
return((short)Math.Abs((long)(hash1 ^ hash2) % (long)entityPartitionCount));
}
