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TagSet.cs
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TagSet.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.Collections.Generic;
using System.Linq;
using MongoDB.Driver.Core.Misc;
using MongoDB.Shared;
namespace MongoDB.Driver
{
/// <summary>
/// Represents a replica set member tag set.
/// </summary>
public sealed class TagSet : IEquatable<TagSet>
{
// fields
private readonly IReadOnlyList<Tag> _tags;
// constructor
/// <summary>
/// Initializes a new instance of the <see cref="TagSet"/> class.
/// </summary>
public TagSet()
{
_tags = new Tag[0];
}
/// <summary>
/// Initializes a new instance of the <see cref="TagSet"/> class.
/// </summary>
/// <param name="tags">The tags.</param>
public TagSet(IEnumerable<Tag> tags)
{
_tags = Ensure.IsNotNull(tags, nameof(tags)).OrderBy(t => t.Name).ThenBy(t => t.Value).ToArray();
}
// properties
/// <summary>
/// Gets a value indicating whether the tag set is empty.
/// </summary>
/// <value>
/// <c>true</c> if the tag set is empty; otherwise, <c>false</c>.
/// </value>
public bool IsEmpty
{
get { return _tags.Count == 0; }
}
/// <summary>
/// Gets the tags.
/// </summary>
/// <value>
/// The tags.
/// </value>
public IReadOnlyList<Tag> Tags
{
get { return _tags; }
}
// methods
/// <summary>
/// Determines whether the tag set contains all of the required tags.
/// </summary>
/// <param name="required">The required tags.</param>
/// <returns>True if the tag set contains all of the required tags.</returns>
public bool ContainsAll(TagSet required)
{
return required.Tags.All(t => _tags.Contains(t));
}
/// <inheritdoc/>
public override bool Equals(object obj)
{
return Equals(obj as TagSet);
}
/// <inheritdoc/>
public bool Equals(TagSet other)
{
if (other == null)
{
return false;
}
return _tags.SequenceEqual(other._tags);
}
/// <inheritdoc/>
public override int GetHashCode()
{
return new Hasher()
.HashElements(_tags)
.GetHashCode();
}
/// <inheritdoc/>
public override string ToString()
{
if (_tags.Count == 0)
{
return "{ }";
}
else
{
return string.Format("{{ {0} }}", string.Join(", ", _tags.Select(t => t.ToString()).ToArray()));
}
}
}
}