/// <summary>
/// Loads the dataset into an external application and returns when the dataset application has started.
/// </summary>
/// <param name="endpointId">The endpoint ID for the owner.</param>
/// <param name="channelType">The type of channel on which the dataset should be contacted.</param>
/// <param name="address">The channel address for the owner.</param>
/// <returns>The ID number of the newly created endpoint.</returns>
/// <exception cref="ArgumentNullException">
/// Thrown if <paramref name="endpointId"/> is <see langword="null" />.
/// </exception>
/// <exception cref="ArgumentNullException">
/// Thrown if <paramref name="address"/> is <see langword="null" />.
/// </exception>
public EndpointId ActivateDataset(EndpointId endpointId, ChannelType channelType, Uri address)
{
{
Lokad.Enforce.Argument(() => endpointId);
Lokad.Enforce.Argument(() => address);
}
var deploymentDir = DeployLocation();
m_Diagnostics.Log(
LevelToLog.Debug,
BaseConstants.LogPrefix,
string.Format(CultureInfo.InvariantCulture, "Deploying to: {0}", deploymentDir));
DeployApplication(deploymentDir);
var fullFilePath = Path.Combine(deploymentDir, DatasetApplicationFileName);
var arguments = string.Format(
CultureInfo.InvariantCulture,
@"--host={0} --channeltype=""{1}"" --channeluri={2}",
endpointId,
channelType,
address);
var startInfo = new ProcessStartInfo
{
FileName = fullFilePath,
Arguments = arguments,
// Create no window for the process. It doesn't need one
// and we don't want the user to have a window they can
// kill. If the process has to die then the user will have
// to put in some effort.
CreateNoWindow = true,
// Do not use the shell to create the application
// This means we can only start executables.
UseShellExecute = false,
// Do not display an error dialog if startup fails
// We'll deal with that ourselves
ErrorDialog = false,
// Do not redirect any of the input or output streams
// We don't really care about them because we won't be using
// them anyway.
RedirectStandardInput = false,
RedirectStandardOutput = false,
RedirectStandardError = false,
// Set the working directory to something sane. Mostly the
// directory of the file that we're trying to read.
WorkingDirectory = deploymentDir,
};
using (var exec = new Process())
{
exec.StartInfo = startInfo;
exec.Start();
// Link to the current process so that the datasets die if we die
s_ProcessTrackingJob.LinkChildProcessToJob(exec);
return exec.CreateEndpointIdForProcess();
}
}
private EndpointId StartExecutorApplication(EndpointId endpointId, Uri address)
{
var localInstallDir = Assembly.GetExecutingAssembly().LocalDirectoryPath();
var fullFilePath = Path.Combine(localInstallDir, "Sherlock.Executor.exe");
var arguments = string.Format(
CultureInfo.InvariantCulture,
@"--host={0} --channeltype=""{1}"" --channeluri={2}",
endpointId,
ChannelType.NamedPipe,
address);
var startInfo = new ProcessStartInfo
{
FileName = fullFilePath,
Arguments = arguments,
// Create no window for the process. It doesn't need one
// and we don't want the user to have a window they can
// kill. If the process has to die then the user will have
// to put in some effort.
CreateNoWindow = true,
// Do not use the shell to create the application
// This means we can only start executables.
UseShellExecute = false,
// Do not display an error dialog if startup fails
// We'll deal with that ourselves
ErrorDialog = false,
// Do not redirect any of the input or output streams
// We don't really care about them because we won't be using
// them anyway.
RedirectStandardInput = false,
RedirectStandardOutput = false,
RedirectStandardError = false,
// Set the working directory to something sane. Mostly the
// directory of the file that we're trying to read.
WorkingDirectory = localInstallDir,
};
var exec = new Process
{
StartInfo = startInfo
};
exec.Exited += HandleOnExecutorApplicationExit;
exec.Start();
return exec.CreateEndpointIdForProcess();
}