/// <summary>
/// Test if a URI string is valid
/// </summary>
/// <param name="uri">URI string</param>
/// <returns>true iff valid, false otherwise</returns>
public static bool IsValid(string uri)
{
try
{
_ = new Bo4eUri(uri);
}
catch (Exception)
{
return(false);
}
return(true);
}
/// <summary>
/// Get an URI for a Business Object
/// </summary>
/// <see cref="GetQueryObject"/> for the reverse operation.
/// <param name="bo">Business Object</param>
/// <param name="includeUserProperties">set true to add userProperties as query parameters</param>
/// <returns>Bo4eUri</returns>
/// call e.g. <see cref="System.Uri.GetComponents"/> or <see cref="System.Uri.ToString"/> on the returned object.
public static Bo4eUri GetUri(BusinessObject bo, bool includeUserProperties = false)
{
if (bo == null)
{
throw new ArgumentNullException("Business Object must not be null.");
}
string baseUriString = BO4E_SCHEME + bo.GetType().Name + "/";
Bo4eUri baseUri = new Bo4eUri(baseUriString);
string relativeUriString = string.Empty;
foreach (PropertyInfo keyProp in GetKeyFields(bo))
{
//relativeUriString += keyField.Name; // line is useful for debugging
if (keyProp.GetValue(bo) != null)
{
if (keyProp.GetValue(bo).GetType() == typeof(string))
{
if (keyProp.GetValue(bo).ToString() == string.Empty)
{
relativeUriString += NULL_KEY_PLACEHOLDER + "/";
}
else
{
relativeUriString += keyProp.GetValue(bo) + "/";
}
}
else if (keyProp.GetValue(bo).GetType() == typeof(int))
{
relativeUriString += keyProp.GetValue(bo).ToString() + "/";
}
else if (keyProp.GetValue(bo) is Enum)
{
relativeUriString += keyProp.GetValue(bo).ToString() + "/";
}
else if (keyProp.GetValue(bo).GetType().IsSubclassOf(typeof(BusinessObject)))
{
BusinessObject innerBo = (BusinessObject)keyProp.GetValue(bo);
relativeUriString += GetUri(innerBo).GetComponents(UriComponents.Path, UriFormat.UriEscaped).ToString();
}
else
{
throw new NotImplementedException($"Using {keyProp.GetValue(bo).GetType()} as [BoKey] is not supported yet.");
}
}
else
{
// there must be some value for null, because if the key is a composite key
// you could not distinguish which field was null.
// Think of two Ansprechpartners:
// - Günther Hermann but Günther is not set/null ==> /~/Hermann
// - Hermann Maier but Maier is not set/null ==> /Hermann/~/
relativeUriString += NULL_KEY_PLACEHOLDER + "/";
}
}
if (includeUserProperties && bo.UserProperties != null && bo.UserProperties.Count > 0)
{
int n = 0;
foreach (var up in bo.UserProperties)
{
if (n == 0)
{
relativeUriString += "?";
}
else
{
relativeUriString += "&";
}
relativeUriString += $"{up.Key}={up.Value}";
n += 1;
}
}
Uri relativeUri = new Uri(Uri.EscapeUriString(relativeUriString), UriKind.Relative);
if (TryCreate(baseUri, relativeUri, out Uri resultUri))
{
return(new Bo4eUri(resultUri.AbsoluteUri));
}
else
{
return(null);
}
}
