| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System; |
| | | 5 | | using System.Collections.Generic; |
| | | 6 | | using CoreWCF.Runtime; |
| | | 7 | | |
| | | 8 | | namespace CoreWCF.Channels |
| | | 9 | | { |
| | | 10 | | internal class CorrelationDataMessageProperty : IMessageProperty |
| | | 11 | | { |
| | | 12 | | private const string PropertyName = "CorrelationDataMessageProperty"; |
| | | 13 | | private Dictionary<string, DataProviderEntry> _dataProviders; |
| | | 14 | | |
| | 0 | 15 | | public CorrelationDataMessageProperty() |
| | | 16 | | { |
| | 0 | 17 | | } |
| | | 18 | | |
| | 0 | 19 | | private CorrelationDataMessageProperty(IDictionary<string, DataProviderEntry> dataProviders) |
| | | 20 | | { |
| | 0 | 21 | | if (dataProviders != null && dataProviders.Count > 0) |
| | | 22 | | { |
| | 0 | 23 | | _dataProviders = new Dictionary<string, DataProviderEntry>(dataProviders); |
| | | 24 | | } |
| | 0 | 25 | | } |
| | | 26 | | |
| | | 27 | | public static string Name |
| | | 28 | | { |
| | 0 | 29 | | get { return PropertyName; } |
| | | 30 | | } |
| | | 31 | | |
| | | 32 | | public void Add(string name, Func<string> dataProvider) |
| | | 33 | | { |
| | 0 | 34 | | if (string.IsNullOrEmpty(name)) |
| | | 35 | | { |
| | 0 | 36 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(name)); |
| | | 37 | | } |
| | | 38 | | |
| | 0 | 39 | | if (dataProvider == null) |
| | | 40 | | { |
| | 0 | 41 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(dataProvider)); |
| | | 42 | | } |
| | | 43 | | |
| | 0 | 44 | | if (_dataProviders == null) |
| | | 45 | | { |
| | 0 | 46 | | _dataProviders = new Dictionary<string, DataProviderEntry>(); |
| | | 47 | | } |
| | 0 | 48 | | _dataProviders.Add(name, new DataProviderEntry(dataProvider)); |
| | 0 | 49 | | } |
| | | 50 | | |
| | | 51 | | public bool Remove(string name) |
| | | 52 | | { |
| | 0 | 53 | | if (_dataProviders != null) |
| | | 54 | | { |
| | 0 | 55 | | return _dataProviders.Remove(name); |
| | | 56 | | } |
| | | 57 | | else |
| | | 58 | | { |
| | 0 | 59 | | return false; |
| | | 60 | | } |
| | | 61 | | } |
| | | 62 | | |
| | | 63 | | public bool TryGetValue(string name, out string value) |
| | | 64 | | { |
| | 0 | 65 | | if (_dataProviders != null && _dataProviders.TryGetValue(name, out DataProviderEntry entry)) |
| | | 66 | | { |
| | 0 | 67 | | value = entry.Data; |
| | 0 | 68 | | return true; |
| | | 69 | | } |
| | | 70 | | else |
| | | 71 | | { |
| | 0 | 72 | | value = null; |
| | 0 | 73 | | return false; |
| | | 74 | | } |
| | | 75 | | } |
| | | 76 | | |
| | | 77 | | public static bool TryGet(Message message, out CorrelationDataMessageProperty property) |
| | | 78 | | { |
| | 0 | 79 | | if (message == null) |
| | | 80 | | { |
| | 0 | 81 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(message)); |
| | | 82 | | } |
| | 0 | 83 | | return TryGet(message.Properties, out property); |
| | | 84 | | } |
| | | 85 | | |
| | | 86 | | public static bool TryGet(MessageProperties properties, out CorrelationDataMessageProperty property) |
| | | 87 | | { |
| | 0 | 88 | | if (properties.TryGetValue(PropertyName, out object value)) |
| | | 89 | | { |
| | 0 | 90 | | property = value as CorrelationDataMessageProperty; |
| | | 91 | | } |
| | | 92 | | else |
| | | 93 | | { |
| | 0 | 94 | | property = null; |
| | | 95 | | } |
| | 0 | 96 | | return property != null; |
| | | 97 | | } |
| | | 98 | | |
| | | 99 | | public static void AddData(Message message, string name, Func<string> dataProvider) |
| | | 100 | | { |
| | 0 | 101 | | if (string.IsNullOrEmpty(name)) |
| | | 102 | | { |
| | 0 | 103 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(name)); |
| | | 104 | | } |
| | | 105 | | |
| | 0 | 106 | | if (dataProvider == null) |
| | | 107 | | { |
| | 0 | 108 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(dataProvider)); |
| | | 109 | | } |
| | | 110 | | |
| | 0 | 111 | | CorrelationDataMessageProperty data = null; |
| | 0 | 112 | | if (message.Properties.TryGetValue(PropertyName, out object value)) |
| | | 113 | | { |
| | 0 | 114 | | data = value as CorrelationDataMessageProperty; |
| | | 115 | | } |
| | | 116 | | |
| | 0 | 117 | | bool addNewProperty = false; |
| | 0 | 118 | | if (data == null) |
| | | 119 | | { |
| | 0 | 120 | | data = new CorrelationDataMessageProperty(); |
| | 0 | 121 | | addNewProperty = true; |
| | | 122 | | } |
| | | 123 | | |
| | 0 | 124 | | data.Add(name, dataProvider); |
| | | 125 | | |
| | 0 | 126 | | if (addNewProperty) |
| | | 127 | | { |
| | 0 | 128 | | message.Properties[PropertyName] = data; |
| | | 129 | | } |
| | 0 | 130 | | } |
| | | 131 | | |
| | | 132 | | public IMessageProperty CreateCopy() |
| | | 133 | | { |
| | 0 | 134 | | return new CorrelationDataMessageProperty(_dataProviders); |
| | | 135 | | } |
| | | 136 | | |
| | | 137 | | private class DataProviderEntry |
| | | 138 | | { |
| | | 139 | | private string _resolvedData; |
| | | 140 | | private Func<string> _dataProvider; |
| | | 141 | | |
| | 0 | 142 | | public DataProviderEntry(Func<string> dataProvider) |
| | | 143 | | { |
| | | 144 | | Fx.Assert(dataProvider != null, "dataProvider required"); |
| | 0 | 145 | | _dataProvider = dataProvider; |
| | 0 | 146 | | _resolvedData = null; |
| | 0 | 147 | | } |
| | | 148 | | |
| | | 149 | | public string Data |
| | | 150 | | { |
| | | 151 | | get |
| | | 152 | | { |
| | 0 | 153 | | if (_dataProvider != null) |
| | | 154 | | { |
| | 0 | 155 | | _resolvedData = _dataProvider(); |
| | 0 | 156 | | _dataProvider = null; |
| | | 157 | | } |
| | | 158 | | |
| | 0 | 159 | | return _resolvedData; |
| | | 160 | | } |
| | | 161 | | } |
| | | 162 | | } |
| | | 163 | | } |
| | | 164 | | } |