/// <summary>
/// Deletes the long-standing analyses from the database.
/// </summary>
/// <param name="serviceProvider">The application service provider.</param>
/// <param name="token">The cancellation token for the task.</param>
public async Task DeleteAnalysesAsync(IServiceProvider serviceProvider, CancellationToken token)
{
// Define the limit date.
var limitDate = DateTime.Today - TimeSpan.FromDays(ApplicationDbContext.DaysBeforeDelete);
// Define the IDs of the items to get.
var itemIds = new List <string>();
// Use a new scope.
using (var scope = serviceProvider.CreateScope())
{
// Use a new context instance.
using var context = scope.ServiceProvider.GetRequiredService <ApplicationDbContext>();
// Get the IDs of the items to delete.
itemIds = context.Analyses
.Where(item => item.Status == AnalysisStatus.Stopped || item.Status == AnalysisStatus.Completed || item.Status == AnalysisStatus.Error)
.Where(item => item.DateTimeEnded < limitDate)
.Select(item => item.Id)
.ToList();
}
// Define a new task.
var task = new AnalysesTask
{
Items = itemIds
.Select(item => new AnalysisInputModel
{
Id = item
})
};
// Run the task.
await task.DeleteAsync(serviceProvider, token);
}
public async Task <IActionResult> OnPostAsync()
{
// Get the current user.
var user = await _userManager.GetUserAsync(User);
// Check if there isn't any ID provided.
if (string.IsNullOrEmpty(Input.Id))
{
// Display a message.
TempData["StatusMessage"] = "Error: No ID has been provided.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Index"));
}
// Define the query.
var query = _context.Analyses
.Where(item => item.AnalysisDatabases.Any(item1 => item1.Database.DatabaseType.Name == "Generic"))
.Where(item => item.IsPublic || item.AnalysisUsers.Any(item1 => item1.User == user))
.Where(item => item.Id == Input.Id);
// Define the view.
View = new ViewModel
{
IsUserAuthenticated = user != null,
Analysis = query
.FirstOrDefault()
};
// Check if the item hasn't been found.
if (View.Analysis == null)
{
// Display a message.
TempData["StatusMessage"] = "Error: No analysis has been found with the provided ID, or you don't have access to it.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Index"));
}
// Check if the reCaptcha is valid.
if (!await _reCaptchaChecker.IsValid(Input.ReCaptchaToken))
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "The reCaptcha verification failed.");
// Return the page.
return(Page());
}
// Check if the provided model isn't valid.
if (!ModelState.IsValid)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "An error has been encountered. Please check again the input fields.");
// Redisplay the page.
return(Page());
}
// Check if the public availability isn't valid.
if (!View.IsUserAuthenticated && !Input.IsPublic)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "You are not logged in, so the analysis must be set as public.");
// Redisplay the page.
return(Page());
}
// Define a new task.
var task = new AnalysesTask
{
Items = new List <AnalysisInputModel>
{
new AnalysisInputModel
{
Id = Input.Id,
Name = Input.Name,
Description = Input.Description,
IsPublic = Input.IsPublic
}
}
};
// Try to run the task.
try
{
// Run the task.
await task.EditAsync(_serviceProvider, CancellationToken.None);
}
catch (Exception exception)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, exception.Message);
// Redisplay the page.
return(Page());
}
// Display a message.
TempData["StatusMessage"] = "Success: 1 analysis updated successfully.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Details/Index", new { id = View.Analysis.Id }));
}
public async Task <IActionResult> OnPostAsync()
{
// Get the current user.
var user = await _userManager.GetUserAsync(User);
// Check if there isn't any algorithm provided.
if (Input.Algorithm == null)
{
// Display a message.
TempData["StatusMessage"] = "Error: An algorithm is required for creating an analysis.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Index"));
}
// Try to get the algorithm.
try
{
// Get the algorithm.
_ = EnumerationExtensions.GetEnumerationValue <AnalysisAlgorithm>(Input.Algorithm);
}
catch (Exception)
{
// Display a message.
TempData["StatusMessage"] = "Error: The provided algorithm is not valid.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Index"));
}
// Define the view.
View = new ViewModel
{
IsUserAuthenticated = user != null,
Algorithm = Input.Algorithm,
SampleItems = _context.Samples
.Where(item => item.SampleDatabases.Any(item1 => item1.Database.DatabaseType.Name == "Generic"))
.Select(item => new SampleItemModel
{
Id = item.Id,
Name = item.Name,
Description = item.Description
})
};
// Check if the reCaptcha is valid.
if (!await _reCaptchaChecker.IsValid(Input.ReCaptchaToken))
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "The reCaptcha verification failed.");
// Return the page.
return(Page());
}
// Check if the provided model isn't valid.
if (!ModelState.IsValid)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "An error has been encountered. Please check again the input fields.");
// Redisplay the page.
return(Page());
}
// Check if the public availability isn't valid.
if (!View.IsUserAuthenticated && !Input.IsPublic)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "You are not logged in, so the analysis must be set as public.");
// Redisplay the page.
return(Page());
}
// Try to deserialize the network data.
if (!Input.NetworkData.TryDeserializeJsonObject <IEnumerable <string> >(out var networkIds) || networkIds == null)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "The provided network data could not be deserialized.");
// Redisplay the page.
return(Page());
}
// Check if there weren't any network IDs provided.
if (!networkIds.Any())
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "At least one network ID must be specified.");
// Redisplay the page.
return(Page());
}
// Try to get the networks with the provided IDs.
var networks = _context.Networks
.Where(item => item.IsPublic || item.NetworkUsers.Any(item1 => item1.User == user))
.Where(item => item.NetworkDatabases.Any(item1 => item1.Database.DatabaseType.Name == "Generic"))
.Where(item => item.NetworkDatabases.Any(item1 => item1.Database.IsPublic || item1.Database.DatabaseUsers.Any(item2 => item2.User == user)))
.Where(item => networkIds.Contains(item.Id));
// Check if there weren't any networks found.
if (!networks.Any())
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "No networks could be found with the provided IDs.");
// Redisplay the page.
return(Page());
}
// Try to deserialize the seed data.
if (!Input.SourceNodeData.TryDeserializeJsonObject <IEnumerable <string> >(out var sourceItems) || sourceItems == null)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "The provided source data could not be deserialized.");
// Redisplay the page.
return(Page());
}
// Try to deserialize the target data.
if (!Input.TargetNodeData.TryDeserializeJsonObject <IEnumerable <string> >(out var targetItems) || targetItems == null)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "The provided target data could not be deserialized.");
// Redisplay the page.
return(Page());
}
// Check if there wasn't any target data found.
if (!targetItems.Any())
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, "No target data has been provided.");
// Redisplay the page.
return(Page());
}
// Define the generation data.
var data = JsonSerializer.Serialize(sourceItems
.Select(item => new AnalysisNodeInputModel
{
Node = new NodeInputModel
{
Id = item
},
Type = "Source"
})
.Concat(targetItems
.Select(item => new AnalysisNodeInputModel
{
Node = new NodeInputModel
{
Id = item
},
Type = "Target"
})));
// Define a new task.
var task = new AnalysesTask
{
Scheme = HttpContext.Request.Scheme,
HostValue = HttpContext.Request.Host.Value,
Items = new List <AnalysisInputModel>
{
new AnalysisInputModel
{
Name = Input.Name,
Description = Input.Description,
IsPublic = Input.IsPublic,
Data = data,
MaximumIterations = Input.MaximumIterations,
MaximumIterationsWithoutImprovement = Input.MaximumIterationsWithoutImprovement,
Algorithm = Input.Algorithm,
Parameters = Input.Algorithm == AnalysisAlgorithm.Greedy.ToString() ? JsonSerializer.Serialize(Input.GreedyAlgorithmParameters) :
Input.Algorithm == AnalysisAlgorithm.Genetic.ToString() ? JsonSerializer.Serialize(Input.GeneticAlgorithmParameters) :
null,
AnalysisUsers = View.IsUserAuthenticated ?
new List <AnalysisUserInputModel>
{
new AnalysisUserInputModel
{
User = new UserInputModel
{
Id = user.Id
}
}
} :
new List <AnalysisUserInputModel>(),
AnalysisNetworks = networks
.Select(item => item.Id)
.Select(item => new AnalysisNetworkInputModel
{
Network = new NetworkInputModel
{
Id = item
}
})
}
}
};
// Define the IDs of the created items.
var ids = Enumerable.Empty <string>();
// Try to run the task.
try
{
// Run the task.
ids = await task.CreateAsync(_serviceProvider, CancellationToken.None);
}
catch (Exception exception)
{
// Add an error to the model.
ModelState.AddModelError(string.Empty, exception.Message);
// Redisplay the page.
return(Page());
}
// Check if there wasn't any ID returned.
if (ids != null && ids.Any())
{
// Display a message.
TempData["StatusMessage"] = $"Success: 1 generic analysis with the algorithm \"{Input.Algorithm}\" defined successfully with the ID \"{ids.First()}\" and scheduled for generation.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Details/Index", new { id = ids.First() }));
}
// Display a message.
TempData["StatusMessage"] = $"Success: 1 generic analysis with the algorithm \"{Input.Algorithm}\" defined successfully and scheduled for generation.";
// Redirect to the index page.
return(RedirectToPage("/Content/DatabaseTypes/Generic/Created/Analyses/Index"));
}