/// <summary>
/// Converts the given <paramref name="numberString"/> to its
/// <see cref="TimestepNumber"/> equivalent.
/// </summary>
/// <param name="numberString">
/// The string, which should be converted.
/// </param>
/// <param name="Timestep">
/// The return value, if the conversion was successful.
/// </param>
/// <returns>
/// Indicates, whether the conversion was successful.
/// </returns>
public static bool TryParse(string numberString, out TimestepNumber Timestep)
{
bool IsTimestepNumber = true;
try {
Timestep = new TimestepNumber(numberString);
} catch (ArgumentException) {
Timestep = null;
IsTimestepNumber = false;
}
return(IsTimestepNumber);
}
/// <summary>
/// Compares two time-steps based on each individual number (cf.
/// <see cref="TimestepNumber"/>) in order of their
/// significance.
/// </summary>
/// <param name="other">
/// The time-step to be compared to
/// </param>
/// <returns>
/// The result of the integer comparison of the sub-number with the
/// highest significance for which the result is not zero.
/// </returns>
public int CompareTo(TimestepNumber other)
{
int length = Math.Min(this.numbers.Length, other.numbers.Length);
// Decision based on existing entries
for (int i = 0; i < length; i++)
{
int result = this.numbers[i].CompareTo(other.numbers[i]);
if (result != 0)
{
return(result);
}
}
// Still undecided? -> More indices = larger
return(this.numbers.Length.CompareTo(other.numbers.Length));
}
/// <summary>
/// Constructs information about a time-step with given
/// <paramref name="fields"/>.
/// </summary>
/// <param name="physTime">
/// The physical time represented by this object
/// </param>
/// <param name="session">
/// The session this time-step belongs to
/// </param>
/// <param name="TimestepNo">
/// The number of the represented time-step
/// </param>
/// <param name="fields">
/// The fields associated with this time-step.
/// </param>
/// <param name="storageID">
/// <see cref="Guid"/> of the storage vector containing the serialized
/// information stored in this object.
/// </param>
public TimestepInfo(
double physTime, ISessionInfo session, TimestepNumber TimestepNo, IEnumerable <DGField> fields)
{
// check & set grid
this.m_GridGuid = fields.Count() > 0 ? fields.First().Basis.GridDat.GridID : Guid.Empty;
if (fields.Where(f => !f.Basis.GridDat.GridID.Equals(this.m_GridGuid)).Count() > 0)
{
throw new ArgumentException("all fields must be associated to the same grid.");
}
// check validity of identifications:
{
List <DGField> _Fields = new List <DGField>();
FlattenHierarchy(_Fields, fields);
HashSet <string> allIdentifications = new HashSet <string>(new ilPSP.FuncEqualityComparer <string>((a, b) => a.Equals(b), a => a.GetHashCode()));
foreach (var f in _Fields)
{
if (f.Identification == null || f.Identification.Length <= 0)
{
throw new ArgumentException("Creating timesteps from fields without an identification is not supported.");
}
if (allIdentifications.Contains(f.Identification))
{
throw new ArgumentException("Within a Timestep, the Identification of each field must be unique: found at least two fields named '" + f.Identification + "'");
}
allIdentifications.Add(f.Identification);
}
}
// set members:
ID = Guid.Empty;
this.m_StorageID = Guid.Empty;
DGField[] _fields = fields.ToArray();
m_Fields = new Lazy <IEnumerable <DGField> >(() => _fields);
this.m_TimestepNumber = TimestepNo;
this.PhysicalTime = physTime;
this.Session = session;
this.m_FieldInitializers = fields.Select(f => f.Initializer).ToArray();
CreationTime = DateTime.Now;
}
/// <summary>
/// Compares two time-steps based on each individual number (cf.
/// <see cref="TimestepNumber"/>) in order of their
/// significance.
/// </summary>
/// <param name="other">
/// The time-step to be compared to
/// </param>
/// <returns>
/// The result of the integer comparison of the sub-number with the
/// highest significance for which the result is not zero.
/// </returns>
public int CompareTo(TimestepNumber other)
{
bool thisIsNix = (this.save_numbers == null || this.save_numbers.Length <= 0);
bool othrIsNix = (other.save_numbers == null || other.save_numbers.Length <= 0);
if (thisIsNix && othrIsNix)
{
// both unspecified -> equal
return(0);
}
if (thisIsNix && !othrIsNix)
{
return(-1);
}
if (thisIsNix && !othrIsNix)
{
return(+1);
}
Debug.Assert(!thisIsNix && !othrIsNix);
int length = Math.Min(this.save_numbers.Length, other.save_numbers.Length);
// Decision based on existing entries
for (int i = 0; i < length; i++)
{
int result = this.save_numbers[i].CompareTo(other.save_numbers[i]);
if (result != 0)
{
return(result);
}
}
// Still undecided? -> More indices = larger
return(this.save_numbers.Length.CompareTo(other.save_numbers.Length));
}
/// <summary>
/// See <see cref="T:int[].Equals"/>
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool Equals(TimestepNumber other)
{
return(ArrayTools.ListEquals(numbers, other.numbers));
}
