/// <param name="forceServiceAddress">If != null, overwrites the service address, and do not not create the analysis package</param>
public static int Main2(string[] args, IVerySimpleLineWriterWithEncoding lineWriter, out string[] clousotArgs, string forceServiceAddress = null)
{
Contract.Requires(lineWriter != null);
int result = -1;
var options = new ClousotServiceOptions(args, forceServiceAddress);
clousotArgs = options.remainingArgs.ToArray();
if (options.windowsService)
{
ClousotViaWindowsService.EnsureWindowsService();
}
var retryOptions = defaultRetryOptions.Clone();
retryOptions.NumberOfRetries = options.serviceRetries;
// Here we create the callback object, starting from the lineWriter provided by the caller
var channelFactory = GetChannelFactoryForType(lineWriter.GetType());
var channelAddress = String.IsNullOrWhiteSpace(options.serviceAddress)
? channelFactory.Endpoint.Address
: new EndpointAddress(new Uri(options.serviceAddress), channelFactory.Endpoint.Address.Identity); // WCF wants us to provide the address for the factory but also for the instance...
// We create the callback object
var callbackInstanceContext = new InstanceContext(lineWriter);
Func<IClousotService> GetAndOpenClousotService = () =>
{
// Let's create a channel with my callback and the address computed above
var channel = channelFactory.CreateChannel(callbackInstanceContext, channelAddress);
lineWriter.WriteLine(("Connecting to Cloudot at address " + channelAddress).PrefixWithCurrentTime());
channel.Open(); // can throw an exception
// Add an event that will be fired when the connection will enter a fault state.
// Useful for debugging
var channelAsDuplex = channel as IDuplexContextChannel;
if (channelAsDuplex != null)
{
channelAsDuplex.Faulted +=
(object sender, EventArgs e) =>
{
// This message is useful for debugging, so that we can see when the error happened
Console.WriteLine("The connection to Cloudot entered a fault state!".PrefixWithCurrentTime());
};
}
else
{
Contract.Assume(false, "We expect the service to be an instance of IDuplexContextChannel");
}
return channel;
};
IClousotService clousotService = null;
try
{
// Step 0: We connect to the server
if (!Retry<ServerTooBusyException>.RetryOnException(GetAndOpenClousotService, retryOptions, out clousotService))
{
return -6666; // server too busy, could not connect
}
lineWriter.WriteLine("Connection with Cloudot established".PrefixWithCurrentTime());
var clousotSpecificOptions = options.remainingArgs.ToArray();
// Step 0.5: Are we simply requested to re-run an existing analysis? If this is the case just invoke cloudot
if(forceServiceAddress != null)
{
result = clousotService.Main(args, lineWriter.Encoding.WebName);
goto ok;
}
// Step 1: We pack all the files on the local machine and send them to the server
FileTransfer.AnalysisPackageInfo packageInfo;
var createThePackage = !options.useSharedDirs;
if (FileTransfer.TryProcessPathsAndCreateAnalysisPackage(GetTmpDirectory, clousotSpecificOptions, createThePackage, out packageInfo))
{
clousotArgs = packageInfo.ExpandedClousotOptionsNormalized;
// Step 2 -- First option: use shared dirs. We do not really want to use it, but it is interesting for debugging
// We have all the command line options normalized to UNCs, and use them for the server
if (!createThePackage)
{
if (packageInfo.ExpandedClousotOptionsNormalized != null)
{
// Step 2: We invoke the analysis on the server
lineWriter.WriteLine("Invoking the analysis on cloudot using shared dirs".PrefixWithCurrentTime());
lineWriter.WriteLine("Parameters: {0}".PrefixWithCurrentTime(), String.Join(" ", clousotArgs));
result = clousotService.Main(clousotArgs, lineWriter.Encoding.WebName); // can throw an exception
goto ok;
}
}
// Step 2 -- Second option: use a package
// We have create a zip file with all the references. We copy it where the server tells us to.
// Then, we invoke cloudot to perform the analysis
else
{
var serverOut = clousotService.GetOutputDirectory();
string fileOnTheServer;
if (serverOut != null && FileTransfer.TrySendTheFile(packageInfo.PackageFileNameLocal, serverOut, out fileOnTheServer))
{
if (packageInfo.AssembliesToAnalyze != null && packageInfo.AssembliesToAnalyze.Length > 0)
{
packageInfo.PackageFileNameServer = fileOnTheServer;
var name = Path.GetFileName(packageInfo.AssembliesToAnalyze[0]);
#if false
// Just for debug
string[] p;
FileTransfer.TryRestoreAnalysisPackage(fileOnTheServer, Path.Combine(serverOut, "tmp"), out p);
#endif
// Step 2: We invoke the analysis on the server
lineWriter.WriteLine("Invoking the analysis on cloudot using analysis package (on server at {0})".PrefixWithCurrentTime(), fileOnTheServer);
result = clousotService.AnalyzeUsingAnalysisPackage(name, fileOnTheServer, lineWriter.Encoding.WebName);
goto ok;
}
else
{
lineWriter.WriteLine("Cannot figure out the assembly to analyze. We abort.");
}
}
}
}
return -1;
ok:
// Step * : Close the service
// We moved the Close action here, as it may be the case that the background thread is still writing something on the callback, while we close it
// I do not really know how to see if this is the case, but it appears when we output a lot of information via a remote server
// From what I saw on the internet, for similar cases, it seems the best solution is to use the Try-Catch-Abort pattern
// Waiting also helps, but how much is a problem.
clousotService.Close(TimeToWaitBeforeClosing);
return result;
}
// We use the Try-Catch-Abort pattern for WCF
catch (ActionNotSupportedException actionNotSupported)
{
Console.WriteLine("Something is wrong with the client/server contract");
Console.WriteLine("This is the exception {0}", actionNotSupported);
return -1;
}
catch (CommunicationException)
{
if (clousotService != null)
{
var channelAsDuplex = clousotService as IDuplexContextChannel;
if (channelAsDuplex != null)
{
if (channelAsDuplex.State == CommunicationState.Faulted)
{
Console.WriteLine("The communication is a faulted state. Is Cloudot down?");
}
}
(clousotService as IDuplexContextChannel).Abort();
}
else
{
Console.WriteLine("Something has gone very wrong. I did not expected clousotService to be null here");
}
return -1;
}
catch (TimeoutException)
{
Console.WriteLine("Hit a timeout in the communication with Cloudot");
(clousotService as IDuplexContextChannel).Abort();
return -1;
}
catch (Exception e)
{
var errMsg = e.Message + (e.InnerException != null ? string.Format("{0} -- {1}", Environment.NewLine, e.InnerException.Message) : "");
Console.WriteLine(("Analysis terminated because of an error: " + errMsg).PrefixWithCurrentTime());
return -1;
}
finally
{
if (clousotService != null)
{
clousotService.TryDispose();
}
}
}
/// <param name="forceServiceAddress">If != null, overwrites the service address, and do not not create the analysis package</param>
public static int Main2(string[] args, IVerySimpleLineWriterWithEncoding lineWriter, out string[] clousotArgs, string forceServiceAddress = null)
{
Contract.Requires(lineWriter != null);
int result = -1;
var options = new ClousotServiceOptions(args, forceServiceAddress);
clousotArgs = options.remainingArgs.ToArray();
if (options.windowsService)
{
ClousotViaWindowsService.EnsureWindowsService();
}
var retryOptions = defaultRetryOptions.Clone();
retryOptions.NumberOfRetries = options.serviceRetries;
// Here we create the callback object, starting from the lineWriter provided by the caller
var channelFactory = GetChannelFactoryForType(lineWriter.GetType());
var channelAddress = String.IsNullOrWhiteSpace(options.serviceAddress)
? channelFactory.Endpoint.Address
: new EndpointAddress(new Uri(options.serviceAddress), channelFactory.Endpoint.Address.Identity); // WCF wants us to provide the address for the factory but also for the instance...
// We create the callback object
var callbackInstanceContext = new InstanceContext(lineWriter);
Func <IClousotService> GetAndOpenClousotService = () =>
{
// Let's create a channel with my callback and the address computed above
var channel = channelFactory.CreateChannel(callbackInstanceContext, channelAddress);
lineWriter.WriteLine(("Connecting to Cloudot at address " + channelAddress).PrefixWithCurrentTime());
channel.Open(); // can throw an exception
// Add an event that will be fired when the connection will enter a fault state.
// Useful for debugging
var channelAsDuplex = channel as IDuplexContextChannel;
if (channelAsDuplex != null)
{
channelAsDuplex.Faulted +=
(object sender, EventArgs e) =>
{
// This message is useful for debugging, so that we can see when the error happened
Console.WriteLine("The connection to Cloudot entered a fault state!".PrefixWithCurrentTime());
};
}
else
{
Contract.Assume(false, "We expect the service to be an instance of IDuplexContextChannel");
}
return(channel);
};
IClousotService clousotService = null;
try
{
// Step 0: We connect to the server
if (!Retry <ServerTooBusyException> .RetryOnException(GetAndOpenClousotService, retryOptions, out clousotService))
{
return(-6666); // server too busy, could not connect
}
lineWriter.WriteLine("Connection with Cloudot established".PrefixWithCurrentTime());
var clousotSpecificOptions = options.remainingArgs.ToArray();
// Step 0.5: Are we simply requested to re-run an existing analysis? If this is the case just invoke cloudot
if (forceServiceAddress != null)
{
result = clousotService.Main(args, lineWriter.Encoding.WebName);
goto ok;
}
// Step 1: We pack all the files on the local machine and send them to the server
FileTransfer.AnalysisPackageInfo packageInfo;
var createThePackage = !options.useSharedDirs;
if (FileTransfer.TryProcessPathsAndCreateAnalysisPackage(GetTmpDirectory, clousotSpecificOptions, createThePackage, out packageInfo))
{
clousotArgs = packageInfo.ExpandedClousotOptionsNormalized;
// Step 2 -- First option: use shared dirs. We do not really want to use it, but it is interesting for debugging
// We have all the command line options normalized to UNCs, and use them for the server
if (!createThePackage)
{
if (packageInfo.ExpandedClousotOptionsNormalized != null)
{
// Step 2: We invoke the analysis on the server
lineWriter.WriteLine("Invoking the analysis on cloudot using shared dirs".PrefixWithCurrentTime());
lineWriter.WriteLine("Parameters: {0}".PrefixWithCurrentTime(), String.Join(" ", clousotArgs));
result = clousotService.Main(clousotArgs, lineWriter.Encoding.WebName); // can throw an exception
goto ok;
}
}
// Step 2 -- Second option: use a package
// We have create a zip file with all the references. We copy it where the server tells us to.
// Then, we invoke cloudot to perform the analysis
else
{
var serverOut = clousotService.GetOutputDirectory();
string fileOnTheServer;
if (serverOut != null && FileTransfer.TrySendTheFile(packageInfo.PackageFileNameLocal, serverOut, out fileOnTheServer))
{
if (packageInfo.AssembliesToAnalyze != null && packageInfo.AssembliesToAnalyze.Length > 0)
{
packageInfo.PackageFileNameServer = fileOnTheServer;
var name = Path.GetFileName(packageInfo.AssembliesToAnalyze[0]);
#if false
// Just for debug
string[] p;
FileTransfer.TryRestoreAnalysisPackage(fileOnTheServer, Path.Combine(serverOut, "tmp"), out p);
#endif
// Step 2: We invoke the analysis on the server
lineWriter.WriteLine("Invoking the analysis on cloudot using analysis package (on server at {0})".PrefixWithCurrentTime(), fileOnTheServer);
result = clousotService.AnalyzeUsingAnalysisPackage(name, fileOnTheServer, lineWriter.Encoding.WebName);
goto ok;
}
else
{
lineWriter.WriteLine("Cannot figure out the assembly to analyze. We abort.");
}
}
}
}
return(-1);
ok:
// Step * : Close the service
// We moved the Close action here, as it may be the case that the background thread is still writing something on the callback, while we close it
// I do not really know how to see if this is the case, but it appears when we output a lot of information via a remote server
// From what I saw on the internet, for similar cases, it seems the best solution is to use the Try-Catch-Abort pattern
// Waiting also helps, but how much is a problem.
clousotService.Close(TimeToWaitBeforeClosing);
return(result);
}
// We use the Try-Catch-Abort pattern for WCF
catch (ActionNotSupportedException actionNotSupported)
{
Console.WriteLine("Something is wrong with the client/server contract");
Console.WriteLine("This is the exception {0}", actionNotSupported);
return(-1);
}
catch (CommunicationException)
{
if (clousotService != null)
{
var channelAsDuplex = clousotService as IDuplexContextChannel;
if (channelAsDuplex != null)
{
if (channelAsDuplex.State == CommunicationState.Faulted)
{
Console.WriteLine("The communication is a faulted state. Is Cloudot down?");
}
}
(clousotService as IDuplexContextChannel).Abort();
}
else
{
Console.WriteLine("Something has gone very wrong. I did not expected clousotService to be null here");
}
return(-1);
}
catch (TimeoutException)
{
Console.WriteLine("Hit a timeout in the communication with Cloudot");
(clousotService as IDuplexContextChannel).Abort();
return(-1);
}
catch (Exception e)
{
var errMsg = e.Message + (e.InnerException != null ? string.Format("{0} -- {1}", Environment.NewLine, e.InnerException.Message) : "");
Console.WriteLine(("Analysis terminated because of an error: " + errMsg).PrefixWithCurrentTime());
return(-1);
}
finally
{
if (clousotService != null)
{
clousotService.TryDispose();
}
}
}
