/// <summary>
/// Determine whether a user can execute a <see cref="StatePath"/> in general.
/// The user must alse have read and write access rights to a stateful object in order to be allowed
/// state path execution.
/// </summary>
/// <param name="user">The user.</param>
/// <param name="statePath">The state path to execute.</param>
/// <param name="segregation">Optional segregation where the stateful object may belong.</param>
public bool CanUserExecuteStatePath(U user, StatePath statePath, Segregation <U> segregation = null)
{
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
if (statePath == null)
{
throw new ArgumentNullException(nameof(statePath));
}
var rolesAccessRight = GetRolesAccessRight(user);
if (rolesAccessRight.SupportsStatePath(statePath))
{
return(true);
}
if (segregation != null)
{
AccessRight dispositionsAccessRight = GetDispositionsAccessRight(user, segregation);
return(dispositionsAccessRight.SupportsStatePath(statePath));
}
return(false);
}
/// <summary>
/// Determine whether a user can execute a <see cref="StatePath"/>
/// over a stateful instance.
/// </summary>
/// <typeparam name="ST">The type of state transitions, derived from <see cref="StateTransition{U}"/>.</typeparam>
/// <param name="user">The user.</param>
/// <param name="stateful">The stateful instance.</param>
/// <param name="statePath">The state path to execute.</param>
public bool CanUserExecuteStatePath <ST>(U user, IStateful <U, ST> stateful, StatePath statePath)
where ST : StateTransition <U>
{
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
if (stateful == null)
{
throw new ArgumentNullException(nameof(stateful));
}
if (statePath == null)
{
throw new ArgumentNullException(nameof(statePath));
}
if (!CanUserReadEntity(user, stateful) || !CanUserWriteEntity(user, stateful))
{
return(false);
}
var rolesAccessRight = GetRolesAccessRight(user);
if (rolesAccessRight.SupportsStatePath(statePath))
{
return(true);
}
if (stateful is ISegregatedEntity segregatedStateful)
{
AccessRight dispositionsAccessRight = GetDispositionsAccessRight(user, segregatedStateful);
return(dispositionsAccessRight.SupportsStatePath(statePath));
}
return(false);
}