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OperationExtensionMethods.cs
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OperationExtensionMethods.cs
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/* Copyright 2013-present MongoDB Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Threading;
using System.Threading.Tasks;
using MongoDB.Driver.Core.Bindings;
using MongoDB.Driver.Core.Misc;
namespace MongoDB.Driver.Core.Operations
{
/// <summary>
/// Represents extension methods for operations.
/// </summary>
public static class OperationExtensionMethods
{
/// <summary>
/// Executes a read operation using a channel source.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <param name="operation">The read operation.</param>
/// <param name="channelSource">The channel source.</param>
/// <param name="readPreference">The read preference.</param>
/// <param name="session">The session.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// The result of the operation.
/// </returns>
public static TResult Execute<TResult>(
this IReadOperation<TResult> operation,
IChannelSourceHandle channelSource,
ReadPreference readPreference,
ICoreSessionHandle session,
CancellationToken cancellationToken)
{
Ensure.IsNotNull(operation, nameof(operation));
using (var readBinding = new ChannelSourceReadWriteBinding(channelSource.Fork(), readPreference, session.Fork()))
{
return operation.Execute(readBinding, cancellationToken);
}
}
/// <summary>
/// Executes a write operation using a channel source.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <param name="operation">The write operation.</param>
/// <param name="channelSource">The channel source.</param>
/// <param name="session">The session.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// The result of the operation.
/// </returns>
public static TResult Execute<TResult>(
this IWriteOperation<TResult> operation,
IChannelSourceHandle channelSource,
ICoreSessionHandle session,
CancellationToken cancellationToken)
{
Ensure.IsNotNull(operation, nameof(operation));
using (var writeBinding = new ChannelSourceReadWriteBinding(channelSource.Fork(), ReadPreference.Primary, session.Fork()))
{
return operation.Execute(writeBinding, cancellationToken);
}
}
/// <summary>
/// Executes a read operation using a channel source.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <param name="operation">The read operation.</param>
/// <param name="channelSource">The channel source.</param>
/// <param name="readPreference">The read preference.</param>
/// <param name="session">The session.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// A Task whose result is the result of the operation.
/// </returns>
public static async Task<TResult> ExecuteAsync<TResult>(
this IReadOperation<TResult> operation,
IChannelSourceHandle channelSource,
ReadPreference readPreference,
ICoreSessionHandle session,
CancellationToken cancellationToken)
{
Ensure.IsNotNull(operation, nameof(operation));
using (var readBinding = new ChannelSourceReadWriteBinding(channelSource.Fork(), readPreference, session.Fork()))
{
return await operation.ExecuteAsync(readBinding, cancellationToken).ConfigureAwait(false);
}
}
/// <summary>
/// Executes a write operation using a channel source.
/// </summary>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <param name="operation">The write operation.</param>
/// <param name="channelSource">The channel source.</param>
/// <param name="session">The session.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// A Task whose result is the result of the operation.
/// </returns>
public static async Task<TResult> ExecuteAsync<TResult>(
this IWriteOperation<TResult> operation,
IChannelSourceHandle channelSource,
ICoreSessionHandle session,
CancellationToken cancellationToken)
{
Ensure.IsNotNull(operation, nameof(operation));
using (var writeBinding = new ChannelSourceReadWriteBinding(channelSource.Fork(), ReadPreference.Primary, session.Fork()))
{
return await operation.ExecuteAsync(writeBinding, cancellationToken).ConfigureAwait(false);
}
}
}
}