//
// System.ServiceModel.MessageFilterTable.cs
//
// Author: Duncan Mak (duncan@novell.com)
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Channels;
namespace System.ServiceModel.Dispatcher{
[DataContract]
public class MessageFilterTable<TFilterData> : IMessageFilterTable<TFilterData>, IDictionary<MessageFilter,TFilterData>,
ICollection<KeyValuePair<MessageFilter, TFilterData>>, IEnumerable<KeyValuePair<MessageFilter,TFilterData>>, IEnumerable
{
int default_priority;
Dictionary<MessageFilter, TFilterData> table;
Dictionary<MessageFilter, int> priority_list;
public MessageFilterTable ()
: this (0) {} // 0 is the default
public MessageFilterTable (int default_priority)
{
this.default_priority = default_priority;
table = new Dictionary<MessageFilter, TFilterData> ();
priority_list = new Dictionary<MessageFilter, int> ();
}
public void Add (KeyValuePair<MessageFilter, TFilterData> item)
{
this.Add (item.Key, item.Value, default_priority);
}
public void Add (MessageFilter filter, TFilterData data)
{
this.Add (filter, data, default_priority);
}
public void Add (MessageFilter filter, TFilterData data, int priority)
{
table.Add (filter, data);
priority_list.Add (filter, priority);
}
public void Clear ()
{
table.Clear ();
priority_list.Clear ();
}
public bool Contains (KeyValuePair<MessageFilter, TFilterData> item)
{
return ContainsKey (item.Key);
}
public bool ContainsKey (MessageFilter filter)
{
return table.ContainsKey (filter);
}
public void CopyTo (KeyValuePair<MessageFilter, TFilterData> [] array, int index)
{
((ICollection) table).CopyTo (array, index);
}
protected virtual IMessageFilterTable<TFilterData> CreateFilterTable (MessageFilter filter)
{
return filter.CreateFilterTable<TFilterData> ();
}
public IEnumerator<KeyValuePair<MessageFilter, TFilterData>> GetEnumerator ()
{
return table.GetEnumerator ();
}
public int GetPriority (MessageFilter filter)
{
return priority_list [filter];
}
public bool GetMatchingFilter (Message message, out MessageFilter result)
{
if (message == null)
throw new ArgumentNullException ("message is null");
result = null;
int count = 0;
foreach (MessageFilter f in table.Keys) {
if (!f.Match (message))
continue;
if (count > 1)
throw new MultipleFilterMatchesException (
"More than one filter matches.");
count++;
result = f;
}
return count == 1;
}
public bool GetMatchingFilter (MessageBuffer buffer, out MessageFilter result)
{
return GetMatchingFilter (buffer.CreateMessage (), out result);
}
[MonoTODO ("Consider priority")]
public bool GetMatchingFilters (Message message, ICollection<MessageFilter> results)
{
if (message == null)
throw new ArgumentNullException ("message is null.");
int count = 0;
foreach (MessageFilter f in table.Keys)
if (f.Match (message)) {
results.Add (f);
count++;
}
return count != 0;
}
public bool GetMatchingFilters (MessageBuffer buffer, ICollection<MessageFilter> results)
{
return GetMatchingFilters (buffer.CreateMessage (), results);
}
[MonoTODO ("Consider priority")]
public bool GetMatchingValue (Message message, out TFilterData data)
{
if (message == null)
throw new ArgumentNullException ("message is null");
data = default (TFilterData);
int count = 0;
foreach (MessageFilter f in table.Keys) {
if (!f.Match (message))
continue;
if (count > 1)
throw new MultipleFilterMatchesException (
"More than one filter matches.");
count++;
data = table [f];
}
return count == 1;
}
public bool GetMatchingValue (MessageBuffer buffer, out TFilterData data)
{
return GetMatchingValue (buffer.CreateMessage (), out data);
}
public bool GetMatchingValues (Message message, ICollection<TFilterData> results)
{
if (message == null)
throw new ArgumentNullException ("message is null.");
int count = 0;
foreach (MessageFilter f in table.Keys)
if (f.Match (message)) {
results.Add (table [f]);
count++;
}
return count != 0;
}
public bool GetMatchingValues (MessageBuffer buffer, ICollection<TFilterData> results)
{
return GetMatchingValues (buffer.CreateMessage (), results);
}
public bool Remove (MessageFilter filter)
{
if (filter == null)
throw new ArgumentNullException ("filter is null.");
if (!table.ContainsKey (filter))
return false;
table.Remove (filter);
priority_list.Remove (filter);
return true;
}
public bool Remove (KeyValuePair<MessageFilter, TFilterData> item)
{
return Remove (item.Key);
}
IEnumerator IEnumerable.GetEnumerator ()
{
return (IEnumerator) table.GetEnumerator ();
}
public bool TryGetValue (MessageFilter filter, out TFilterData data)
{
return table.TryGetValue (filter, out data);
}
public int Count { get { return table.Count; } }
[DataMember]
public int DefaultPriority {
get { return default_priority; }
set { default_priority = value; }
}
public bool IsReadOnly { get { return false; } }
public TFilterData this [MessageFilter filter] {
get { return table [filter]; }
set { table [filter] = value; }
}
public ICollection<MessageFilter> Keys {
get { return table.Keys; }
}
public ICollection<TFilterData> Values {
get { return table.Values; }
}
}
}
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