// Creates an unzipped copy of the executable for the Stitch, and any other resource
// allocation. Call StartInstance to start the instance
public LocalCreateInstanceResponse CreateNewInstance(LocalCreateInstanceRequest request)
{
try
{
var response = new LocalCreateInstanceResponse();
if (request == null || !request.IsValid() || request.NumberOfInstances <= 0)
{
return(response.AsFailure());
}
var packageFile = _data.Get <PackageFile>(request.GroupName.ToString());
if (packageFile == null)
{
return(response.AsFailure());
}
for (int i = 0; i < request.NumberOfInstances; i++)
{
var instance = CreateSingleNewInstanceInternal(packageFile, request);
if (instance != null)
{
response.CreatedIds.Add(instance.Id);
}
}
response.IsSuccess = response.CreatedIds.Count == request.NumberOfInstances;
return(response);
}
catch (Exception e)
{
_log.LogError(e, "Could not create new stitch instance");
return(null);
}
}
public StitchInstance Map(LocalCreateInstanceRequest request)
{
return(new StitchInstance
{
Id = null,
StoreVersion = 0,
GroupName = request.GroupName,
Name = request.Name,
OwnerNodeName = _nodeName,
OwnerNodeId = _nodeId
});
}
private StitchInstance CreateSingleNewInstanceInternal(PackageFile packageFile, LocalCreateInstanceRequest request)
{
// Insert the new instance to the data module
var instance = new StitchInstanceMapper(_core.NodeId, _core.Name).Map(request);
instance = _data.Insert(instance);
if (instance == null)
{
_log.LogError("Could not save new stitch instance");
return(null);
}
if (packageFile.Adaptor.RequiresPackageUnzip)
{
// Unzip a copy of the version from the library into the running base
var result = _fileSystem.UnzipLibraryPackageToRunningBase(instance.GroupName, instance.Id);
if (!result.Success)
{
_log.LogError("Could not unzip library package for new stitch {0}", instance.GroupName);
return(null);
}
// TODO: We should move this into a class specific to ProcessV1 types.
_data.Update <PackageFile>(packageFile.Id, pf => pf.Adaptor.Parameters[Parameters.RunningDirectory] = result.Path);
}
_data.Save(instance);
_log.LogInformation("Created stitch instance Id={0} GroupName={1}", instance.Id, request.GroupName);
_notifier.StitchCreated(instance);
// StitchInstanceManager auto-creates the necessary adaptor on Start. We don't need to do anything for it here.
return(instance);
}
