/// <summary>
/// Constructs a new <see cref="CmdExecutor"/> object, initializes its command queue and sets the <see cref="TargetEnvironment"/> property.
/// </summary>
/// <param name="targetEnvironmentViewModel">The target environment which will participate in the <see cref="EnvironmentChanged"/> event.</param>
/// <seealso cref="CmdExecutorBase"/>
public CmdExecutor(EnvironmentViewModel targetEnvironmentViewModel)
{
var converter = new EnvironmentConverter();
var convertedEnvironment = converter.From(targetEnvironmentViewModel);
TargetEnvironment = convertedEnvironment;
}
/// <summary>
/// Converts an <see cref="EnvironmentViewModel"/> to an <see cref="Environment"/> entity and inserts it if it's not been persisted yet. If it has, updates it.
/// </summary>
/// <param name="environment">The <see cref="EnvironmentViewModel"/> to save or update.</param>
/// <returns>The newly-inserted or updated <see cref="Environment"/>, converted to an <see cref="EnvironmentViewModel"/></returns>
public EnvironmentViewModel SaveEnvironment(EnvironmentViewModel environment)
{
var converter = new EnvironmentConverter();
var entity = converter.From(environment);
var inserted = _repository.UpsertEnvironment(entity);
return(converter.To(inserted));
}
/// <summary>
/// Performs all the commands in the <see cref="CmdExecutorBase.CommandQueue"/> queue asynchronously.
/// It optionally notifies of progress and execution can be canceled.
/// </summary>
/// <param name="progress">Notifies of progress.</param>
/// <param name="cancellationToken">Allows canceling the execution midway and revert to a previous state.</param>
public override async Task ExecuteAsync(IProgress <CmdExecutorProgress> progress, CancellationToken cancellationToken)
{
await base.ExecuteAsync(progress, cancellationToken);
if (TargetEnvironment != null)
{
var converter = new EnvironmentConverter();
var convertedViewModel = converter.To(TargetEnvironment);
OnEnvironmentChanged(this, new EnvironmentChangedEventArgs(convertedViewModel));
}
}
/// <summary>
/// Gets all the <see cref="EnvironmentViewModel"/>s marked as normal environments in the datastore.
/// </summary>
/// <returns>A <see cref="ICollection{T}"/> of <see cref="EnvironmentViewModel"/>s.</returns>
public ICollection <EnvironmentViewModel> GetEnvironments()
{
var models = _repository.GetEnvironments();
var output = new List <EnvironmentViewModel>();
var environmentConverter = new EnvironmentConverter();
foreach (var model in models)
{
output.Add(environmentConverter.To(model));
}
return(output);
}
/// <summary>
/// Get the <see cref="EnvironmentViewModel"/> with the specified id.
/// </summary>
/// <param name="id">The id of the <see cref="EnvironmentViewModel"/> to retrieve.</param>
/// <returns>If an <see cref="Environment"/> with the specified id is found, converts it to an <see cref="EnvironmentViewModel"/>. If not, returns null.</returns>
public EnvironmentViewModel GetEnvironmentById(int id)
{
var result = _repository.GetEnvironmentById(id);
if (result == null)
{
return(null);
}
var converter = new EnvironmentConverter();
return(converter.To(result));
}
/// <summary>
/// Validates the supplied <see cref="EnvironmentViewModel"/>. If the validation is successful, converts to an <see cref="Environment"/> entity and inserts it in the datastore.
/// </summary>
/// <param name="environmentViewModel">The <see cref="EnvironmentViewModel"/> to insert.</param>
/// <returns>If the validation is successful, return a new instance of the <see cref="EnvironmentViewModel"/> with its id updated. Otherwise, returns null.</returns>
public EnvironmentViewModel InsertEnvironment(EnvironmentViewModel environmentViewModel)
{
var validator = new EnvironmentViewModelValidator();
var validationResult = validator.Validate(environmentViewModel);
if (validationResult.IsValid)
{
var converter = new EnvironmentConverter();
var converted = converter.From(environmentViewModel);
var inserted = _repository.InsertEnvironment(converted);
return(converter.To(inserted));
}
return(null);
}
