/// <summary>
/// Resolve the current CRI relative to a provided CRI value
/// </summary>
/// <param name="baseRef">CRI to resolve relative to</param>
/// <returns></returns>
public Cori ResolveTo(Cori baseRef)
{
CBORObject o = Resolve(baseRef.Data, Data);
if (o == null)
{
throw new CoAPException("Unable to resolve the two URIs.");
}
return(new Cori(o));
}
/// <inheritdoc />
public override bool Equals(object obj)
{
if (!(obj is Cori))
{
return(false);
}
Cori right = (Cori)obj;
if (this == right)
{
return(true);
}
if (right == null)
{
return(false);
}
if (!IsAbsolute() || !right.IsAbsolute())
{
throw new ArgumentException("Can only compare absolute CoRI values");
}
if (Data.Count != right.Data.Count)
{
return(false);
}
for (int i = 0; i < Data.Count; i++)
{
if (!Data[i].Equals(right.Data[i]))
{
return(false);
}
}
return(true);
}
public Cori MakeRelative(Cori baseHref)
{
if (!baseHref.IsAbsolute() || !IsAbsolute())
{
throw new ArgumentException("Must be absolute URIs");
}
if (this.Equals(baseHref))
{
return(new Cori(CBORObject.NewArray()));
}
List <CBORObject> baseUri = new List <CBORObject>(baseHref.Data.Values);
List <CBORObject> href = new List <CBORObject>(Data.Values);
// Strip leading matches
int lastOption = OptionBegin;
while (baseUri.Count >= 2 && href.Count >= 2 && baseUri[0].Equals(href[0]) && baseUri[1].Equals(href[1]))
{
lastOption = baseUri[0].AsInt32();
baseUri.RemoveRange(0, 2);
href.RemoveRange(0, 2);
}
bool removedTail = false;
// Strip trailing matches
if (baseUri.Count > 0)
{
int opt = OptionEnd;
if (lastOption >= OptionPort)
{
opt = lastOption;
}
if (opt > OptionPath && href.Count > 0)
{
int t = href[href.Count - 2].AsInt32();
if (t < opt && t >= OptionPath)
{
opt = t;
}
}
if (opt > OptionPath && href.Count > 2)
{
int t = href[href.Count - 4].AsInt32();
if (t < opt && t >= OptionPath)
{
opt = t;
}
}
if (opt <= OptionPath)
{
opt = OptionQuery;
}
while (baseUri.Count > 0 && baseUri[baseUri.Count - 2].AsInt32() >= opt)
{
baseUri.RemoveRange(baseUri.Count - 2, 2);
removedTail = true;
}
}
if (removedTail && lastOption == OptionPort)
{
if (baseUri.Count == 0)
{
href.Insert(0, CBORObject.FromObject(PathTypeAbsolutePath));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
else if (baseUri.Count == 2)
{
href.Insert(0, CBORObject.FromObject(PathTypeRelativePath));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
else
{
href.Insert(0, CBORObject.FromObject(PathTypeRelativePath1Up + baseUri.Count - 1));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
return(new Cori(ArrayToCbor(href)));
}
if (removedTail && lastOption == OptionPath)
{
if (baseUri.Count == 0)
{
href.Insert(0, CBORObject.FromObject(PathTypeAppendPath));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
else if (baseUri.Count == 2)
{
href.Insert(0, CBORObject.FromObject(PathTypeRelativePath));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
else
{
href.Insert(0, CBORObject.FromObject(PathTypeRelativePath1Up + baseUri.Count - 1));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
return(new Cori(ArrayToCbor(href)));
}
if (baseUri.Count == 0 && href.Count == 0)
{
// Not sure how we got here as this should have been dealt with already.
return(new Cori(CBORObject.NewArray()));
}
if (baseUri.Count == 0 || baseUri[0].AsInt32() <= OptionPort)
{
// Ran the entire base set - what is left is the relative URI
// If we did not get down to the port option, then what is left is the relative URI
if (lastOption == OptionPath)
{
href.Insert(0, CBORObject.FromObject(PathTypeAppendPath));
href.Insert(0, CBORObject.FromObject(OptionPathType));
}
return(new Cori(ArrayToCbor(href)));
}
if (href.Count == 0)
{
if (lastOption == OptionPort)
{
href.Add(CBORObject.FromObject(OptionPathType));
href.Add(CBORObject.FromObject(PathTypeAbsolutePath));
return(new Cori(ArrayToCbor(href)));
}
else if (baseUri.Count == 2)
{
href.Add(CBORObject.FromObject(OptionPathType));
href.Add(CBORObject.FromObject(PathTypeRelativePath));
return(new Cori(ArrayToCbor(href)));
}
else
{
href.Add(CBORObject.FromObject(OptionPathType));
href.Add(CBORObject.FromObject(PathTypeRelativePath + baseUri.Count / 2 - 1));
return(new Cori(ArrayToCbor(href)));
}
}
if (baseUri.Count > 0 && lastOption >= OptionPath)
{
href.Insert(0, CBORObject.FromObject(PathTypeRelativePath + baseUri.Count / 2 - 1));
href.Insert(0, CBORObject.FromObject(OptionPathType));
return(new Cori(ArrayToCbor(href)));
}
if (lastOption == OptionPort)
{
href.Insert(0, CBORObject.FromObject(PathTypeAbsolutePath));
href.Insert(0, CBORObject.FromObject(OptionPathType));
return(new Cori(ArrayToCbor(href)));
}
return(new Cori(ArrayToCbor(href)));
}
