//
// System.ServiceModel.SynchronizedReadOnlyCollection.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.Runtime.InteropServices;
namespace System.Collections.Generic{
[ComVisible (false)]
public class SynchronizedReadOnlyCollection<T>
: IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable
{
List<T> l;
object sync_root;
public SynchronizedReadOnlyCollection ()
: this (new object ())
{
}
public SynchronizedReadOnlyCollection (object sync_root)
: this (sync_root, new List<T> ())
{
}
public SynchronizedReadOnlyCollection (object sync_root, IEnumerable<T> list)
{
if (sync_root == null)
throw new ArgumentNullException ("sync_root");
if (list == null)
throw new ArgumentNullException ("list");
this.sync_root = sync_root;
this.l = new List<T> (list);
}
public SynchronizedReadOnlyCollection (object sync_root, params T [] list)
: this (sync_root, (IEnumerable<T>) list)
{
}
public SynchronizedReadOnlyCollection (object sync_root, List<T> list, bool make_copy)
: this (sync_root,
list == null ? null : make_copy ? new List<T> (list) : list)
{
}
public bool Contains (T value)
{
bool retval;
lock (sync_root) {
retval = l.Contains (value);
}
return retval;
}
public void CopyTo (T [] array, int index)
{
lock (sync_root) {
l.CopyTo (array, index);
}
}
public IEnumerator<T> GetEnumerator ()
{
IEnumerator<T> retval;
lock (sync_root) {
retval = l.GetEnumerator ();
}
return retval;
}
public int IndexOf (T value)
{
int retval;
lock (sync_root) {
retval = l.IndexOf (value);
}
return retval;
}
void ICollection<T>.Add (T value) { throw new NotSupportedException (); }
void ICollection<T>.Clear () { throw new NotSupportedException (); }
bool ICollection<T>.Remove (T value) { throw new NotSupportedException (); }
void IList<T>.Insert (int index, T value) { throw new NotSupportedException (); }
void IList<T>.RemoveAt (int index) { throw new NotSupportedException (); }
void ICollection.CopyTo (Array array, int index)
{
ICollection<T> a = array as ICollection<T>;
if (a == null)
throw new ArgumentException ("The array type is not compatible.");
lock (sync_root) {
((ICollection) l).CopyTo (array, index);
}
}
IEnumerator IEnumerable.GetEnumerator ()
{
return GetEnumerator ();
}
int IList.Add (object value) { throw new NotSupportedException (); }
void IList.Clear () { throw new NotSupportedException (); }
bool IList.Contains (object value)
{
if (typeof (T).IsValueType)
throw new ArgumentException ("This is a collection of ValueTypes.");
// null always gets thru
if (value is T == false && value != null)
throw new ArgumentException ("value is not of the same type as this collection.");
bool retval;
T val = (T) value;
lock (sync_root) {
retval = l.Contains (val);
}
return retval;
}
int IList.IndexOf (object value)
{
if (typeof (T).IsValueType)
throw new ArgumentException ("This is a collection of ValueTypes.");
if (value is T == false)
throw new ArgumentException ("value is not of the same type as this collection.");
int retval;
T val = (T) value;
lock (sync_root) {
retval = l.IndexOf (val);
}
return retval;
}
void IList.Insert (int index, object value) { throw new NotSupportedException (); }
void IList.Remove (object value) { throw new NotSupportedException (); }
void IList.RemoveAt (int index) { throw new NotSupportedException (); }
public int Count {
get {
int retval;
lock (sync_root) {
retval = l.Count;
}
return retval;
}
}
public T this [int index] {
get {
T retval;
lock (sync_root) {
retval = l [index];
}
return retval;
}
}
protected IList<T> Items {
get { return l; }
}
bool ICollection<T>.IsReadOnly { get { return true; }}
bool ICollection.IsSynchronized { get { return true; }}
object ICollection.SyncRoot { get { return sync_root; }}
bool IList.IsFixedSize { get { return true; }}
bool IList.IsReadOnly { get { return true; }}
T IList<T>.this [int index] {
get { return this [index]; }
set { throw new NotSupportedException (); }
}
object IList.this [int index] {
get { return this [index]; }
set { throw new NotSupportedException (); }
}
}
}
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