public String CleanupFromReport(EBSCleanupInput input, ILambdaContext context)
{
AmazonEC2Client ec2Client = new AmazonEC2Client();
String[] lines = new AWSCommon().GetS3ContextAsText(input.BucketName, input.Key).Split("\n".ToCharArray());
List <Task <DeleteSnapshotResponse> > deleteTasks = new List <Task <DeleteSnapshotResponse> >();
int index = 0;
foreach (String line in lines)
{
if (input.StartIndex > index)
{
index++;
continue;
}
//check if lambda timeout is near, if so invoke function recursively
if (context.RemainingTime.Seconds < 20)
{
context.Logger.LogLine("Lambda timouet near end, starting Lambda recursivly...");
var lambdaClient = new Amazon.Lambda.AmazonLambdaClient();
input.StartIndex = index;
lambdaClient.InvokeAsync(new Amazon.Lambda.Model.InvokeRequest()
{
InvocationType = Amazon.Lambda.InvocationType.Event,
FunctionName = context.FunctionName,
Payload = JsonConvert.SerializeObject(input)
}).Wait();
return("Started recursively with index=" + index);
}
string[] cells = line.Split(',');
if (cells.Length > 1)
{
string snapshotId = cells[1];
//check if snapshot id in appropriate format
if (new Regex("snap-(.*)").Match(snapshotId).Success)
{
context.Logger.LogLine($"CSV-L#{index} Deleting snapshot {snapshotId}..");
try {
var response = (ec2Client.DeleteSnapshotAsync(new DeleteSnapshotRequest()
{
SnapshotId = snapshotId
}));
response.Wait();
}catch (Exception ex) {
context.Logger.LogLine($"failed deleting snapshot {snapshotId}:\n{ex}");
}
}
else
{
context.Logger.LogLine($"Snapshot id {snapshotId} not in snap-xx format");
}
}
index++;
}
return("OK");
}
public async void WriteRecord(string fname, string nick, int age, string gender)
{
//point the lambda call to the right location endpoint
Amazon.RegionEndpoint region = Amazon.RegionEndpoint.USEast1;
//credentials
var awsCredentials = new Amazon.Runtime.BasicAWSCredentials(Auth.AWSKey, Auth.AWSSecret);
try
{
//setup the lambda client with the credential and endpoint information
Amazon.Lambda.AmazonLambdaClient client = new Amazon.Lambda.AmazonLambdaClient(awsCredentials, region);
JObject myUser = new JObject();
myUser["id"] = id;
myUser["email"] = email;
myUser["name"] = fname;
myUser["nickname"] = nick;
myUser["age"] = age;
myUser["gender"] = Gender;
//payload has to be encapsulated in double quotes, thus the strange escape sequences here
var invokeRequest = new Amazon.Lambda.Model.InvokeRequest {
FunctionName = "WriteUserProfile", InvocationType = "RequestResponse", PayloadStream = AWSSDKUtils.GenerateMemoryStreamFromString(myUser.ToString()),
};
//going to put this task on another thread so the UI doesn't lock up
System.Threading.Tasks.Task <Amazon.Lambda.Model.InvokeResponse> responseTask = client.InvokeAsync(invokeRequest);
await responseTask.ContinueWith((response) =>
{
string statusText = "";
string informationalText = "Internal error: Unhandled branch point"; // Should always be set in the next "if"
if (response.IsCanceled)
{
statusText = "Cancelled"; informationalText = "";
}
else if (response.IsFaulted)
{
statusText = "Faulted";
informationalText = response.Exception.Message;
foreach (var exception in response.Exception.InnerExceptions)
{
informationalText += "\n" + exception.Message;
}
}
else if (response.IsCompleted)
{
statusText = "Finished";
var responseReader = new System.IO.StreamReader(response.Result.Payload);
informationalText = responseReader.ReadToEnd();
//take the user over to the legal disclaimer step
var activity = new Intent(this, typeof(LegalDisclaimerActivity));
StartActivity(activity);
}
// This continuation is not run on the main UI thread, so need to set up
// another task perform the UI changes on the correct thread.
RunOnUiThread(() =>
{
Console.WriteLine(statusText);
Console.WriteLine(informationalText);
});
});
}
catch (Exception ex)
{
Console.Write(ex.Message);
}
}
private async void GetRecords()
{
//get the stored email of this user
string email = prefs.GetString("email", "");
//point the lambda call to the right location endpoint
Amazon.RegionEndpoint region = Amazon.RegionEndpoint.USEast1;
//credentials
var awsCredentials = new Amazon.Runtime.BasicAWSCredentials(WebApp.AWSKey, WebApp.AWSSecret);
TextView textHere = FindViewById <TextView>(Resource.Id.textView1);
textHere.Text = "";
try
{
//setup the lambda client with the credential and endpoint information
Amazon.Lambda.AmazonLambdaClient client = new Amazon.Lambda.AmazonLambdaClient(awsCredentials, region);
//payload has to be encapsulated in double quotes, thus the strange escape sequences here
var invokeRequest = new Amazon.Lambda.Model.InvokeRequest {
FunctionName = "GetScanHistory", InvocationType = "RequestResponse", Payload = "\"" + email + "\""
};
//going to put this task on another thread so the UI doesn't lock up
System.Threading.Tasks.Task <Amazon.Lambda.Model.InvokeResponse> responseTask = client.InvokeAsync(invokeRequest);
await responseTask.ContinueWith((response) =>
{
string statusText = "";
string informationalText = "Internal error: Unhandled branch point"; // Should always be set in the next "if"
if (response.IsCanceled)
{
statusText = "Cancelled"; informationalText = "";
}
else if (response.IsFaulted)
{
statusText = "Faulted";
informationalText = response.Exception.Message;
foreach (var exception in response.Exception.InnerExceptions)
{
informationalText += "\n" + exception.Message;
}
}
else if (response.IsCompleted)
{
statusText = "Finished";
var responseReader = new System.IO.StreamReader(response.Result.Payload);
informationalText = responseReader.ReadToEnd();
}
// This continuation is not run on the main UI thread, so need to set up
// another task perform the UI changes on the correct thread.
RunOnUiThread(() =>
{
Console.WriteLine(statusText);
Console.WriteLine(informationalText);
//now that we have the response we can deserialize it from Json to our object type
List <QRScan> scanList = JsonConvert.DeserializeObject <List <QRScan> >(informationalText);
foreach (QRScan scan in scanList)
{
textHere.Text += scan;
textHere.Text += "\n";
}
});
});
}
catch (Exception ex)
{
Console.Write(ex.Message);
}
}
