/// <summary>
/// Merge attributes with source attribute collection.
/// </summary>
/// <param name="coll">Source attribute collection.</param>
/// <param name="res">The parameters determine the resolution of attributes name conflicts</param>
public void Merge(DDAttributesCollection coll, ResolveConflict res)
{
foreach (var item in coll)
{
Add(item.Key, item.Value, res);
}
}
/// <summary>
/// Compares the two DDAttributesCollection of the same values and returns an integer that indicates whether the current instance precedes. Very slow
/// </summary>
/// <param name="value1">First DDAttributesCollection to compare</param>
/// <param name="value2">Second DDAttributesCollection to compare</param>
/// <returns>A value that indicates the relative order of the objects being compared. The return value has two meanings:
/// Zero - the both DDAttributesCollection have some items and their values.
/// The difference between the number of elements of the first and second DDAttributes Collection
/// One - values of collection is not equal.</returns>
/// <remarks>The both null object is equal and return value will be Zero. Very slow</remarks>
public static int Compare(DDAttributesCollection value1, DDAttributesCollection value2)
{
if (((object)value1 == null) && ((object)value2 == null))
{
return(0); // if both are null -> return true
}
if (((object)value1 == null) || ((object)value2 == null))
{
return(1); // if only one of them are null -> return false
}
if ((value1.Count != value2.Count))
{
return(value1.Count - value2.Count); // The difference between the number of elements of the first and second DDAttributes Collection
}
foreach (var keyValue1 in value1)
{
if (!value2.Contains(keyValue1.Key))
{
return(-1); //
}
var valueCompareResult = DDValue.Compare(keyValue1.Value, value2[keyValue1.Key]);
if (valueCompareResult != 0)
{
return(valueCompareResult);
}
}
return(0);
}
/// <summary>
/// Returns attributes collection contains merged all attributes from all parent nodes (including root node) for specific node
/// </summary>
/// <param name="n">node</param>
/// <param name="rc">conflict resolution</param>
public static DDAttributesCollection GetMergedParentAttributes(DDNode n, ResolveConflict rc)
{
var current = new DDAttributesCollection();
while (n != null)
{
current.Merge(n.Attributes, rc);
n = n.Parent;
}
return(current);
}
/// <summary>
/// Compares the two DDNode of the same values and returns an integer that indicates whether the current instance precedes. Very slow.
/// Return value that indicates the relative order of the objects being compared. The return value can be one of the <typeparamref name="NODE_COMPARISION_RESULT"/>
/// </summary>
/// <param name="value1">First DDNode to compare</param>
/// <param name="value2">Second DDNode to compare</param>
/// <returns>A value that indicates the relative order of the objects being compared. The return value can be one of the <typeparamref name="NODE_COMPARISION_RESULT"/></returns>>
/// Zero - the both DDNode have some items and their values otherwise nodes are not equals
/// <remarks>Very slow. The following properties are not involved in the comparison:
/// - IsRoot; - Path; - Level
/// </remarks>
public static int Compare(DDNode value1, DDNode value2)
{
if (((object)value1 == null) && ((object)value2 == null))
{
return((int)NODE_COMPARISION_RESULT.NODE_EQUAL); // if both are null -> return true
}
if (((object)value1 == null) || ((object)value2 == null))
{
return((int)NODE_COMPARISION_RESULT.NODE_NULL); // if only one of them are null -> return false
}
if ((value1.Name != value2.Name))
{
return(1); // if Name is not Equals-> return false
}
if (value1.Type.CompareTo(value2.Type) != 0)
{
return((int)NODE_COMPARISION_RESULT.NODE_TYPE_MISMATCH); // node type is not matched
}
if ((value1.HasAttributes != value2.HasAttributes))
{
return((int)NODE_COMPARISION_RESULT.NODE_ATTRIBUTES_NOT_EQUAL); // if HasAttributes is not Equals-> return false
}
if ((value1.HasChildNodes != value2.HasChildNodes))
{
return(1); // if HasChildNodes is not Equals-> return false
}
// [-] fix revert comparison
if ((value1.Count != value2.Count))
{
return((int)NODE_COMPARISION_RESULT.NODE_CHILD_NODES_NOT_EQUAL); // if Count of ChildNodes is not Equals-> return false
}
int compareResult = DDAttributesCollection.Compare(value1.Attributes, value2.Attributes);
if (compareResult != 0)
{
return(compareResult);
}
foreach (var keyValue1 in value1)
{
if (!value2.Contains(keyValue1.Key))
{
return((int)NODE_COMPARISION_RESULT.NODE_CHILD_NODES_NOT_EQUAL); //
}
var valueCompareResult = DDNode.Compare(keyValue1.Value, value2[keyValue1.Key]);
if (valueCompareResult != 0)
{
return(valueCompareResult);
}
}
return(0);
}
/// <summary>
/// Determines whether the Attribute Collection contains an elements with the specified names and will be throw new <exception cref="ContainsAttributesException"/> if one of these attributes was not found
/// </summary>
/// <param name="attr">collection of DDValue that can be accessed by name.</param>
/// <param name="names">list of names of mandatory attributes</param>
/// <exception cref="DDMissingSomeOfAttributesException"/>
private static void containsAttributesOtherwiseThrow(this DDAttributesCollection attr, IEnumerable <string> names)
{
var nel = new List <string>();
foreach (var name in names)
{
if (!attr.Contains(name))
{
nel.Add(name);
}
}
if (nel.Count > 0)
{
throw new DDMissingSomeOfAttributesException(nel.ToArray());
}
}
/// <summary>
/// Creates a copy of the current Attribute Collection
/// </summary>
/// <returns>A copy of the current Attribute Collection</returns>
public virtual DDAttributesCollection Clone()
{
var aDic = new DDAttributesCollection();
foreach (var a in this)
{
if (a.Value == null)
{
aDic.Add(a.Key, null);
}
else
{
aDic.Add(a.Key, a.Value.Clone());
}
}
return(aDic);
}
public DDNode(string name, DDType type)
{
if (!IsNameCorect(name))
{
throw new DDNodeIncorrectNameException(name);
}
attributes = new DDAttributesCollection();
Name = name;
childNodes = new Dictionary <string, DDNode>();
if ((type == null) || (type.Name == null))
{
Type.Name = new DDType(string.Empty);
}
else
{
Type = type;
}
}
/// <summary>
/// Determines whether the Attribute Collection contains an elements with the specified names and will be throw new <exception cref="ContainsAttributesException"/> if one of these attributes was not found
/// </summary>
/// <param name="attr">collection of DDValue that can be accessed by name.</param>
/// <param name="names">list of names of mandatory attributes</param>
/// <exception cref="DDMissingSomeOfAttributesException"/>
public static void ContainsAttributesOtherwiseThrow(this DDAttributesCollection attr, params string[] names)
{
containsAttributesOtherwiseThrow(attr, names);
}
/// <summary>
/// Merge attributes with source attribute collection. In case of conflict, an appropriate exception is thrown
/// </summary>
/// <param name="coll">Source attribute collection.</param>
public void Merge(DDAttributesCollection coll)
{
Merge(coll, ResolveConflict.THROW_EXCEPTION);
}
protected bool Equals(DDAttributesCollection other)
{
return(Equals(attributes, other.attributes));
}