public IEnumerable <ScopedPolicy <T> > GetScoped <T> () where T : class, IEquatable <T>, new ()
{
if (policies == null)
{
yield break;
}
foreach (KeyValuePair <PolicyKey, object> pinfo in policies)
{
if (pinfo.Key.PolicyType == typeof(T))
{
yield return(new ScopedPolicy <T> ((T)pinfo.Value, pinfo.Key.Scope));
}
}
T pol = Get <T> ();
if (pol != null && !PolicyService.IsUndefinedPolicy(pol))
{
yield return(new ScopedPolicy <T> (pol, null));
}
}
internal void AddSerializedPolicies(StreamReader reader)
{
if (policies == null)
{
policies = new PolicyDictionary();
}
foreach (ScopedPolicy policyPair in PolicyService.RawDeserializeXml(reader))
{
PolicyKey key = new PolicyKey(policyPair.PolicyType, policyPair.Scope);
if (policies.ContainsKey(key))
{
throw new InvalidOperationException("Cannot add second policy of type '" +
key.ToString() + "' to policy set '" + Id + "'");
}
policies[key] = policyPair.Policy;
if (!policyPair.SupportsDiffSerialize)
{
externalPolicies.Add(key);
}
}
}
internal void SaveToFile(StreamWriter writer)
{
XmlWriterSettings xws = new XmlWriterSettings();
xws.Indent = true;
XmlConfigurationWriter cw = new XmlConfigurationWriter();
cw.StoreAllInElements = true;
cw.StoreInElementExceptions = new String[] { "scope", "inheritsSet", "inheritsScope" };
using (XmlWriter xw = XmlTextWriter.Create(writer, xws)) {
xw.WriteStartElement("PolicySet");
if (policies != null)
{
foreach (KeyValuePair <PolicyKey, object> policyPair in policies)
{
cw.Write(xw, PolicyService.DiffSerialize(policyPair.Key.PolicyType, policyPair.Value, policyPair.Key.Scope));
}
}
xw.WriteEndElement();
}
}
internal void LoadFromXml(XmlReader reader)
{
if (policies == null)
{
policies = new PolicyDictionary();
}
else
{
policies.Clear();
}
reader.MoveToContent();
string str = reader.GetAttribute("name");
if (!string.IsNullOrEmpty(str))
{
Name = str;
}
str = reader.GetAttribute("id");
if (!string.IsNullOrEmpty(str))
{
Id = str;
}
reader.MoveToElement();
//note: can't use AddSerializedPolicies as we want diff serialisation
foreach (ScopedPolicy policyPair in PolicyService.DiffDeserializeXml(reader))
{
PolicyKey key = new PolicyKey(policyPair.PolicyType, policyPair.Scope);
if (policies.ContainsKey(key))
{
throw new InvalidOperationException(
"Cannot add second policy of type '" + key + "' to policy set '" + Id + "'"
);
}
policies[key] = policyPair.Policy;
}
}
internal object Get(Type type)
{
if (policies != null)
{
object policy;
if (policies.TryGetValue(type, null, out policy))
{
if (!PolicyService.IsUndefinedPolicy(policy))
{
return(policy);
}
return(GetDefaultPolicy(type));
}
}
if (IsRoot)
{
return(GetDefaultPolicy(type));
}
else
{
return(ParentPolicies.Get(type));
}
}
/// <summary>
/// The Get methods return policies taking into account inheritance. If a policy
/// can't be found it may return null, but never an 'undefined' policy.
/// </summary>
/// <returns>
/// The policy of the given type, or null if not found.
/// </returns>
public T Get <T> () where T : class, IEquatable <T>, new ()
{
if (policies != null)
{
object policy;
if (policies.TryGetValue(typeof(T), null, out policy))
{
if (!PolicyService.IsUndefinedPolicy(policy))
{
return((T)policy);
}
return(GetDefaultPolicy <T> ());
}
}
if (IsRoot)
{
return(GetDefaultPolicy <T> ());
}
else
{
return(ParentPolicies.Get <T> ());
}
}
internal void LoadFromFile(StreamReader reader)
{
if (policies == null)
{
policies = new PolicyDictionary();
}
else
{
policies.Clear();
}
//note: can't use AddSerializedPolicies as we want diff serialisation
foreach (ScopedPolicy policyPair in PolicyService.DiffDeserializeXml(reader))
{
PolicyKey key = new PolicyKey(policyPair.PolicyType, policyPair.Scope);
if (policies.ContainsKey(key))
{
throw new InvalidOperationException("Cannot add second policy of type '" +
key.ToString() + "' to policy set '" + Id + "'");
}
policies[key] = policyPair.Policy;
}
}
internal void SaveToXml(XmlWriter xw)
{
XmlConfigurationWriter cw = new XmlConfigurationWriter();
cw.StoreAllInElements = true;
cw.StoreInElementExceptions = new String[] { "scope", "inheritsSet", "inheritsScope" };
xw.WriteStartElement("PolicySet");
if (!string.IsNullOrEmpty(Name))
{
xw.WriteAttributeString("name", Name);
}
if (!string.IsNullOrEmpty(Id))
{
xw.WriteAttributeString("id", Id);
}
if (policies != null)
{
foreach (KeyValuePair <PolicyKey, object> policyPair in policies)
{
cw.Write(xw, PolicyService.DiffSerialize(policyPair.Key.PolicyType, policyPair.Value, policyPair.Key.Scope));
}
}
xw.WriteEndElement();
}
protected virtual object GetDefaultPolicy(Type type, IEnumerable <string> scopes)
{
return(PolicyService.GetDefaultPolicy(type, scopes));
}
protected virtual object GetDefaultPolicy(Type type)
{
return(PolicyService.GetDefaultPolicy(type));
}
protected virtual T GetDefaultPolicy <T> (IEnumerable <string> scopes) where T : class, IEquatable <T>, new ()
{
return(PolicyService.GetDefaultPolicy <T> (scopes));
}
protected virtual T GetDefaultPolicy <T> () where T : class, IEquatable <T>, new ()
{
return(PolicyService.GetDefaultPolicy <T> ());
}