/// <summary>
/// Reorganizes source chain.
/// </summary>
/// <param name="source">
/// Source chain.
/// </param>
/// <returns>
/// <see cref="AbstractChain"/>.
/// </returns>
/// <exception cref="InvalidOperationException">
/// Thrown if level is less than 0.
/// </exception>
public override AbstractChain Reorganize(AbstractChain source)
{
if (level < 0)
{
throw new InvalidOperationException("Markov chain level can't be less than 0");
}
if (level == 0)
{
return source;
}
var result = new BaseChain();
result.ClearAndSetNewLength(source.GetLength() + level);
for (int i = 0; i < source.GetLength(); i++)
{
result[i] = source[i];
}
var iterator = new IteratorStart(source, level, 1);
iterator.Reset();
iterator.Next();
AbstractChain addition = iterator.Current();
for (int i = 0; i < addition.GetLength(); i++)
{
result[source.GetLength() + i] = addition[i];
}
return result;
}
/// <summary>
/// Reorganizes <see cref="AbstractChain"/> into <see cref="AbstractChain"/>.
/// </summary>
/// <param name="source">
/// Source chain.
/// </param>
/// <returns>
/// The <see cref="AbstractChain"/>.
/// </returns>
public override AbstractChain Reorganize(AbstractChain source)
{
var result = source.Clone() as AbstractChain;
if (result != null)
{
return result;
}
result = new BaseChain();
result.ClearAndSetNewLength(source.GetLength());
var iteratorRead = new IteratorSimpleStart(source, 1);
var iteratorWrite = new IteratorWritableStart(result);
iteratorRead.Reset();
iteratorWrite.Reset();
iteratorRead.Next();
iteratorWrite.Next();
for (int i = 0; i < source.GetLength(); i++)
{
iteratorWrite.WriteValue(iteratorRead.Current());
iteratorRead.Next();
iteratorWrite.Next();
}
return result;
}
/// <summary>
/// Reorganizes <see cref="AbstractChain"/> into <see cref="AbstractChain"/>.
/// </summary>
/// <param name="source">
/// Source chain.
/// </param>
/// <returns>
/// The <see cref="AbstractChain"/>.
/// </returns>
public override AbstractChain Reorganize(AbstractChain source)
{
var resent = new BaseChain();
resent.ClearAndSetNewLength(source.GetLength());
for (int i = 0; i < source.GetLength(); i++)
{
var phantom = source[i] as ValuePhantom;
resent.Set(phantom != null ? phantom[0] : source[i], i);
}
return resent;
}
/// <summary>
/// Initializes a new instance of the <see cref="IteratorBase"/> class.
/// </summary>
/// <param name="source">
/// Source chain.
/// </param>
/// <param name="length">
/// Length of subsequence.
/// </param>
/// <param name="step">
/// Shift of iterator.
/// </param>
/// <exception cref="ArgumentException">
/// Thrown if one or more arguments are invalid.
/// </exception>
public IteratorBase(AbstractChain source, int length, int step)
{
if (source == null || length <= 0 || source.GetLength() < length)
{
throw new ArgumentException("Iterator arguments are invalid.");
}
Length = length;
Step = step;
Source = source;
MaxPosition = Source.GetLength() - Length;
Reset();
}
/// <summary>
/// Initializes a new instance of the <see cref="IteratorSimpleStart"/> class.
/// </summary>
/// <param name="source">
/// Source chain.
/// </param>
/// <param name="step">
/// Shift of iterator.
/// </param>
/// <exception cref="ArgumentException">
/// Thrown if one or more arguments are invalid.
/// </exception>
public IteratorSimpleStart(AbstractChain source, int step)
{
if (source == null || source.GetLength() < 1)
{
throw new ArgumentException("Sequence for iteration is null or empty.", "source");
}
Length = 1;
Step = step;
Source = source;
MaxPosition = Source.GetLength() - Length;
Reset();
}