mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-23 10:23:13 +08:00
Marc Schier
93 lines
3.9 KiB
C#
93 lines
3.9 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2025 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Threading.Tasks;
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namespace Opc.Ua.Gds.Client
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{
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/// <summary>
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/// Migration shim — restores the APM
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/// <c>BeginFindServers</c> / <c>EndFindServers</c> pair on
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/// <see cref="LocalDiscoveryServerClient"/> that was removed in 1.6 in
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/// favour of <c>FindServersAsync</c>.
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/// </summary>
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public static class LocalDiscoveryServerClientShim
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{
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extension(LocalDiscoveryServerClient client)
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{
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/// <summary>
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/// Begins an asynchronous <c>FindServers</c> call using the
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/// classic Begin/End APM pattern.
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/// </summary>
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[Obsolete("BeginFindServers/EndFindServers were removed in 1.6. Use FindServersAsync. " +
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"See https://github.com/OPCFoundation/UA-.NETStandard/blob/master/docs/MigrationGuide.md#ua0015")]
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[OpcUaShim("UA0015")]
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public IAsyncResult BeginFindServers(AsyncCallback? callback, object? state)
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{
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var tcs = new TaskCompletionSource<ArrayOf<ApplicationDescription>>(state);
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client.FindServersAsync()
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.AsTask()
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.ContinueWith(
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t =>
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{
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if (t.IsFaulted)
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{
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tcs.TrySetException(t.Exception!.InnerExceptions);
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}
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else if (t.IsCanceled)
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{
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tcs.TrySetCanceled();
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}
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else
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{
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tcs.TrySetResult(t.Result);
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}
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callback?.Invoke(tcs.Task);
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},
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TaskScheduler.Default);
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return tcs.Task;
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}
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/// <summary>
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/// Completes the asynchronous <c>FindServers</c> call.
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/// </summary>
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[Obsolete("BeginFindServers/EndFindServers were removed in 1.6. Use FindServersAsync. " +
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"See https://github.com/OPCFoundation/UA-.NETStandard/blob/master/docs/MigrationGuide.md#ua0015")]
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[OpcUaShim("UA0015")]
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public ArrayOf<ApplicationDescription> EndFindServers(IAsyncResult result)
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{
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return ((Task<ArrayOf<ApplicationDescription>>)result)
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.GetAwaiter()
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.GetResult();
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}
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}
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}
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}
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