PropertyBag
A PropertyBag represents a collection of name value pairs
that allows duplicate entries with the same key. Methods
are provided for adding a new pair as well as for setting
a key to a single value. All keys are strings but _values
may be of any type. Null _values are not permitted, since
a null entry represents the absence of the key.
using NUnit.Framework.Interfaces;
using System.Collections;
using System.Collections.Generic;
namespace NUnit.Framework.Internal
{
public class PropertyBag : IPropertyBag, IXmlNodeBuilder
{
private Dictionary<string, IList> inner = new Dictionary<string, IList>();
public ICollection<string> Keys => inner.Keys;
public IList this[string key] {
get {
if (!inner.TryGetValue(key, out IList value)) {
value = new List<object>();
inner.Add(key, value);
}
return value;
}
set {
inner[key] = value;
}
}
public void Add(string key, object value)
{
if (!inner.TryGetValue(key, out IList value2)) {
value2 = new List<object>();
inner.Add(key, value2);
}
value2.Add(value);
}
public void Set(string key, object value)
{
Guard.ArgumentNotNull(key, "key");
Guard.ArgumentNotNull(value, "value");
IList list = new List<object>();
list.Add(value);
inner[key] = list;
}
public object Get(string key)
{
if (!inner.TryGetValue(key, out IList value) || value.Count <= 0)
return null;
return value[0];
}
public bool ContainsKey(string key)
{
return inner.ContainsKey(key);
}
public TNode ToXml(bool recursive)
{
return AddToXml(new TNode("dummy"), recursive);
}
public TNode AddToXml(TNode parentNode, bool recursive)
{
TNode tNode = parentNode.AddElement("properties");
foreach (string key in Keys) {
foreach (object item in this[key]) {
TNode tNode2 = tNode.AddElement("property");
tNode2.AddAttribute("name", key.ToString());
tNode2.AddAttribute("value", item.ToString());
}
}
return tNode;
}
}
}