117 lines
3.2 KiB
C#
117 lines
3.2 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Collections;
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using System.Collections.Generic;
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namespace Microsoft.AspNetCore.Connections
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{
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public class ConnectionItems : IDictionary<object, object>
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{
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public ConnectionItems()
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: this(new Dictionary<object, object>())
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{
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}
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public ConnectionItems(IDictionary<object, object> items)
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{
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Items = items;
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}
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public IDictionary<object, object> Items { get; }
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// Replace the indexer with one that returns null for missing values
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object IDictionary<object, object>.this[object key]
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{
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get
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{
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if (Items.TryGetValue(key, out var value))
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{
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return value;
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}
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return null;
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}
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set { Items[key] = value; }
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}
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void IDictionary<object, object>.Add(object key, object value)
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{
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Items.Add(key, value);
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}
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bool IDictionary<object, object>.ContainsKey(object key)
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{
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return Items.ContainsKey(key);
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}
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ICollection<object> IDictionary<object, object>.Keys
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{
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get { return Items.Keys; }
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}
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bool IDictionary<object, object>.Remove(object key)
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{
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return Items.Remove(key);
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}
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bool IDictionary<object, object>.TryGetValue(object key, out object value)
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{
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return Items.TryGetValue(key, out value);
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}
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ICollection<object> IDictionary<object, object>.Values
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{
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get { return Items.Values; }
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}
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void ICollection<KeyValuePair<object, object>>.Add(KeyValuePair<object, object> item)
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{
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Items.Add(item);
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}
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void ICollection<KeyValuePair<object, object>>.Clear()
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{
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Items.Clear();
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}
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bool ICollection<KeyValuePair<object, object>>.Contains(KeyValuePair<object, object> item)
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{
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return Items.Contains(item);
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}
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void ICollection<KeyValuePair<object, object>>.CopyTo(KeyValuePair<object, object>[] array, int arrayIndex)
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{
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Items.CopyTo(array, arrayIndex);
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}
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int ICollection<KeyValuePair<object, object>>.Count
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{
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get { return Items.Count; }
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}
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bool ICollection<KeyValuePair<object, object>>.IsReadOnly
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{
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get { return Items.IsReadOnly; }
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}
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bool ICollection<KeyValuePair<object, object>>.Remove(KeyValuePair<object, object> item)
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{
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if (Items.TryGetValue(item.Key, out var value) && Equals(item.Value, value))
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{
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return Items.Remove(item.Key);
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}
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return false;
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}
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IEnumerator<KeyValuePair<object, object>> IEnumerable<KeyValuePair<object, object>>.GetEnumerator()
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{
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return Items.GetEnumerator();
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}
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IEnumerator IEnumerable.GetEnumerator()
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{
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return Items.GetEnumerator();
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}
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}
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}
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