/// <summary>
/// detact this instance from the ASG
/// and decrement the ASG desired
/// </summary>
/// <returns></returns>
private bool DetachFromAutoScalingGroup()
{
bool returnValue = false;
using (AmazonAutoScalingClient scalingClient = new AmazonAutoScalingClient())
{
DetachInstancesRequest detachRequest = new DetachInstancesRequest
{
AutoScalingGroupName = _AutoScalingGroupName,
InstanceIds = new List <string>(new string[] { _InstanceId }),
ShouldDecrementDesiredCapacity = true
};
try
{
DetachInstancesResponse detachResponse = scalingClient.DetachInstancesAsync(detachRequest).Result;
if (detachResponse.HttpStatusCode == System.Net.HttpStatusCode.OK)
{
returnValue = true;
}
}
catch (Exception)
{
//Yes AWS throws Exceptions and System.AggregrateExceptions
//so for now this is the right way to handle it
returnValue = false;
}
}
return(returnValue);
}
private static void UnmarshallResult(XmlUnmarshallerContext context, DetachInstancesResponse response)
{
int originalDepth = context.CurrentDepth;
int targetDepth = originalDepth + 1;
if (context.IsStartOfDocument)
{
targetDepth += 2;
}
while (context.ReadAtDepth(originalDepth))
{
if (context.IsStartElement || context.IsAttribute)
{
if (context.TestExpression("Activities/member", targetDepth))
{
var unmarshaller = ActivityUnmarshaller.Instance;
var item = unmarshaller.Unmarshall(context);
response.Activities.Add(item);
continue;
}
}
}
return;
}
public override AmazonWebServiceResponse Unmarshall(XmlUnmarshallerContext context)
{
DetachInstancesResponse response = new DetachInstancesResponse();
context.Read();
int targetDepth = context.CurrentDepth;
while (context.ReadAtDepth(targetDepth))
{
if (context.IsStartElement)
{
if (context.TestExpression("DetachInstancesResult", 2))
{
UnmarshallResult(context, response);
continue;
}
if (context.TestExpression("ResponseMetadata", 2))
{
response.ResponseMetadata = ResponseMetadataUnmarshaller.Instance.Unmarshall(context);
}
}
}
return(response);
}
public static DetachInstancesResponse Unmarshall(UnmarshallerContext context)
{
DetachInstancesResponse detachInstancesResponse = new DetachInstancesResponse();
detachInstancesResponse.HttpResponse = context.HttpResponse;
detachInstancesResponse.ScalingActivityId = context.StringValue("DetachInstances.ScalingActivityId");
detachInstancesResponse.RequestId = context.StringValue("DetachInstances.RequestId");
return(detachInstancesResponse);
}