public void TestExtractAllInnerExceptions()
{
// the implementation only concatenates exception type and message (no stacktrace)
// format is: excp.GetType().Name + " : " + excp.Message + "\n" and this same is repeated as long there are innerexceptions
ArgumentNullException nex = new ArgumentNullException("nex", "Parameter cannot be null.");
ArgumentException argEx = new ArgumentException("Invalid argument supplied.", nex);
Exception ex = new Exception("An error occured when calling typography service.", argEx);
string extractedMessage = CoreExtensions.ExtractAllInnerExceptions(ex);
extractedMessage.Should().NotBeNullOrWhiteSpace();
// create the expected message parts separated with the \n
// remove \r\n so that we can split with \n easily
string partOne = $"{ex.GetType().Name} : {ex.Message}".Replace("\r\n", string.Empty);
string partTwo = $"{argEx.GetType().Name} : {argEx.Message}".Replace("\r\n", string.Empty);
string partThree = $"{nex.GetType().Name} : {nex.Message}".Replace("\r\n", string.Empty);
// remove \r\n also from the result (when parameter name is given it will be part of the ex.Message)
extractedMessage = extractedMessage.Replace("\r\n", string.Empty);
// don't remove empty entries
var splittedMsgs = extractedMessage.Split(new string[] { "\n" }, StringSplitOptions.None);
splittedMsgs.Length.Should().Be(4, "Count should be 4 because there are 3 exceptions and after last exception there will be '\n' which will produce the extra string in the array.");
splittedMsgs[0].Should().Be(partOne);
splittedMsgs[1].Should().Be(partTwo);
splittedMsgs[2].Should().Be(partThree);
}
public MapServiceProvider(IHostingEnvironment env, ApplicationConfiguration configuration, IOptions <ProxyServerSettings> proxySettings, ILogger <MapServiceProvider> logger)
{
this.configuration = configuration;
this.proxySettings = proxySettings.Value;
try
{
//requestBody = XDocument.Load(env.GetFilePath(frameworkProjectPath, requestBodyFileName));
using (var streamBodyContent = new MemoryStream(Convert.FromBase64String(requestBodyContent)))
{
requestBody = XDocument.Load(streamBodyContent);
}
}
catch (Exception e)
{
logger.LogCritical(CoreExtensions.ExtractAllInnerExceptions(e));
return;
}
query = requestBody.Descendants(wfs + "Query").First();
query.Remove();
initialized = true;
}
/// <summary>
/// Invoke operation on context in transaction according to selected unit of work
/// </summary>
/// <param name="isolationLevel">Desired isolation level of transaction</param>
/// <param name="action">Set of operations invoked on DB Context</param>
private void Perform <TUnitOfWork>(IsolationLevel?isolationLevel, Action <TUnitOfWork> action)
{
lock (this)
{
if (contextInvoked)
{
throw new Exception(CoreMessages.DbContextInUseAlready);
}
contextInvoked = true;
var userName = userIdentification.UserName;
try
{
int operationRetries = 0;
while (true)
{
using (var serviceScope = serviceProvider.GetRequiredService <IServiceScopeFactory>().CreateScope())
{
PtvDbContext dbContext = serviceScope.ServiceProvider.GetService <PtvDbContext>();
TUnitOfWork unitOfWorkWritable = serviceScope.ServiceProvider.GetService <TUnitOfWork>();
IThreadUserInterface threadUserInterface = serviceScope.ServiceProvider.GetService <IUserIdentification>() as IThreadUserInterface;
threadUserInterface?.SetUserName(userName);
IDbContextTransaction transaction = isolationLevel != null?dbContext.Database.BeginTransaction(isolationLevel.Value) : null;
try
{
logger.LogDebug($"DBContext called, thread ID {Thread.CurrentThread.ManagedThreadId}");
dbContext.Database.OpenConnection();
action(unitOfWorkWritable);
if (isolationLevel == WriterIsolationLevel)
{
CommitTransaction(transaction);
}
else
{
RollBackTransaction(transaction);
}
}
catch (Exception e)
{
RollBackTransaction(transaction);
PrintDbException(e);
var ioException = e as IOException;
if (HasDeadLockOccured(e) || (ioException != null) || HasTemporaryOccured(e))
{
if (operationRetries++ < RetriesOnTemporaryFail)
{
CloseContext(dbContext);
logger.LogInformation(e.Message + Environment.NewLine + "Repeating DBContext operation...");
Random randomGen = new Random(Thread.CurrentThread.ManagedThreadId);
Thread.Sleep((randomGen.Next() % 500) + 10); // random wait
continue;
}
else
{
var errorCode = GetPosgreErrorCode(e);
if (errorCode == PostgreTooManyConnections)
{
throw new PtvDbTooManyConnectionsException();
}
}
}
if (e is PtvAppException)
{
throw;
}
logger.LogError(CoreExtensions.ExtractAllInnerExceptions(e));
throw;
}
finally
{
CloseContext(dbContext);
}
break;
}
}
}
finally
{
contextInvoked = false;
}
}
}
public void TestExtractAllInnerExceptionsWithNull()
{
string message = CoreExtensions.ExtractAllInnerExceptions(null);
message.Should().BeEmpty();
}
