/// <summary>
/// Adds the given property path to the pattern group
/// </summary>
public RDFPatternGroup AddPropertyPath(RDFPropertyPath propertyPath)
{
if (propertyPath != null)
{
if (!this.GetPropertyPaths().Any(p => p.Equals(propertyPath)))
{
this.GroupMembers.Add(propertyPath);
}
}
return(this);
}
/// <summary>
/// Prints the string representation of a property path
/// </summary>
internal static String PrintPropertyPath(RDFPropertyPath propertyPath, List <RDFNamespace> prefixes)
{
StringBuilder result = new StringBuilder();
result.Append(PrintPatternMember(propertyPath.Start, prefixes));
result.Append(" ");
#region StepString
#region Single Property
if (propertyPath.Steps.Count == 1)
{
//InversePath (will swap start/end)
if (propertyPath.Steps[0].IsInverseStep)
{
result.Append("^");
}
var propPath = propertyPath.Steps[0].StepProperty;
result.Append(PrintPatternMember(propPath, prefixes));
}
#endregion
#region Multiple Properties
else
{
//Initialize printing
Boolean openedParenthesis = false;
//Iterate properties
for (int i = 0; i < propertyPath.Steps.Count; i++)
{
//Alternative: generate union pattern
if (propertyPath.Steps[i].StepFlavor == RDFQueryEnums.RDFPropertyPathStepFlavors.Alternative)
{
if (!openedParenthesis)
{
openedParenthesis = true;
result.Append("(");
}
//InversePath (will swap start/end)
if (propertyPath.Steps[i].IsInverseStep)
{
result.Append("^");
}
var propPath = propertyPath.Steps[i].StepProperty;
if (i < propertyPath.Steps.Count - 1)
{
result.Append(PrintPatternMember(propPath, prefixes));
result.Append((Char)propertyPath.Steps[i].StepFlavor);
}
else
{
result.Append(PrintPatternMember(propPath, prefixes));
result.Append(")");
}
}
//Sequence: generate pattern
else
{
if (openedParenthesis)
{
result.Remove(result.Length - 1, 1);
openedParenthesis = false;
result.Append(")/");
}
//InversePath (will swap start/end)
if (propertyPath.Steps[i].IsInverseStep)
{
result.Append("^");
}
var propPath = propertyPath.Steps[i].StepProperty;
if (i < propertyPath.Steps.Count - 1)
{
result.Append(PrintPatternMember(propPath, prefixes));
result.Append((Char)propertyPath.Steps[i].StepFlavor);
}
else
{
result.Append(PrintPatternMember(propPath, prefixes));
}
}
}
}
#endregion
#endregion
result.Append(" ");
result.Append(PrintPatternMember(propertyPath.End, prefixes));
return(result.ToString());
}
