[1146] | 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Text;
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| 4 | using System.Xml.Serialization;
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| 5 | using System.IO;
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| 6 |
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| 7 | namespace IndianHealthService.BMXNet.WinForm.Configuration
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| 8 | {
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| 9 | /// <summary>
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| 10 | /// Provides settings interface and implementation for settings from command-line,
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| 11 | /// stored in PersistentStore, or hardcoded in application.
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| 12 | /// </summary>
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| 13 | public class Settings
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| 14 | {
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| 15 | [XmlIgnore()]
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| 16 | private bool _willPersistFutureSets = false;
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| 17 |
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| 18 | /// <summary>
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| 19 | /// After set to true, every setting update will be flushed the PersistentStore if
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| 20 | /// the Settings is configured with one
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| 21 | /// </summary>
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| 22 | public bool WillPersistFutureSets
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| 23 | {
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| 24 | get { return _willPersistFutureSets; }
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| 25 | set { _willPersistFutureSets = value; }
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| 26 | }
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| 27 |
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| 28 |
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| 29 | /// <summary>
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| 30 | /// Answer true if the current Settings IsPersistent. It is possible that the Backup
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| 31 | /// Settings IsPersistennt
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| 32 | /// </summary>
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| 33 | [XmlIgnore()]
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| 34 | public bool IsPersistent
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| 35 | {
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| 36 | get { return this.Store != null; }
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| 37 | }
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| 38 |
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| 39 |
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| 40 | private List<Setting> _settingList = new List<Setting>();
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| 41 |
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| 42 | internal List<Setting> SettingList
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| 43 | {
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| 44 | get { return _settingList; }
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| 45 | set { _settingList = value; }
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| 46 | }
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| 47 |
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| 48 | private Dictionary<String, Setting> _settingLookup = null;
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| 49 |
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| 50 | [XmlIgnore()]
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| 51 | internal Dictionary<String, Setting> SettingLookup
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| 52 | {
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| 53 | get {
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| 54 | if (_settingLookup == null)
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| 55 | {
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| 56 | _settingLookup = this.BuildLookup(this.SettingList);
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| 57 | }
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| 58 | return _settingLookup; }
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| 59 | set { _settingLookup = value; }
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| 60 | }
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| 61 |
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| 62 | /// <summary>
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| 63 | /// Update the Setting value aName to aBool
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| 64 | /// </summary>
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| 65 | /// <param name="aName">Name of the Setting</param>
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| 66 | /// <param name="aBool">Boolean value to set</param>
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| 67 | /// <returns>True if the setting was changed, False if the setting was the same value</returns>
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| 68 | public bool Set(String aName, bool aBool)
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| 69 | {
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| 70 | return this.Set(aName, aBool ? "True" : "False");
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| 71 | }
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| 72 |
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| 73 | /// <summary>
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| 74 | /// Update the Setting value aName to anInt
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| 75 | /// </summary>
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| 76 | /// <param name="aName">Name of the Setting</param>
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| 77 | /// <param name="aBool">Integer value to set</param>
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| 78 | /// <returns>True if the setting was changed, False if the setting was the same value</returns>
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| 79 | public bool Set(String aName, int anInt)
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| 80 | {
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| 81 | return this.Set(aName, anInt.ToString());
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| 82 | }
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| 83 |
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| 84 | /// <summary>
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| 85 | /// Update the Setting value aName to a string
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| 86 | /// </summary>
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| 87 | /// <param name="aName">Name of the Setting</param>
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| 88 | /// <param name="aBool">String value to set</param>
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| 89 | /// <returns>True if the setting was changed, False if the setting was the same value</returns>
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| 90 | public bool Set(String aName, String aValue)
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| 91 | {
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| 92 | Setting current = this.GetLocalSetting(aName);
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| 93 |
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| 94 | if (current == null)
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| 95 | {
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| 96 | if (this.WillPersistFutureSets)
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| 97 | {
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| 98 | current = new Setting() { Name = aName, Value = aValue };
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| 99 | this.AddSetting(current);
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| 100 | }
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| 101 | }
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| 102 | else
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| 103 | {
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| 104 | if (current.Value == aValue)
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| 105 | return false;
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| 106 | current.Value = aValue;
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| 107 | }
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| 108 |
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| 109 |
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| 110 | if (this.IsPersistent)
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| 111 | {
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| 112 | this.Save();
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| 113 | }
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| 114 | else if (this.BackupSettings != null)
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| 115 | {
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| 116 | this.BackupSettings.Set(aName, aValue);
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| 117 | }
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| 118 | return true;
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| 119 | }
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| 120 |
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| 121 |
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| 122 | public Settings BackupSettings { get; set; }
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| 123 |
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| 124 | internal void Clear()
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| 125 | {
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| 126 | this.SettingLookup.Clear();
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| 127 | }
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| 128 |
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| 129 | private string[] _storageKeys = null;
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| 130 |
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| 131 | internal string[] StorageKeys
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| 132 | {
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| 133 | get { return _storageKeys; }
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| 134 | set { _storageKeys = value; }
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| 135 | }
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| 136 |
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| 137 | private PersistentStore _store = null;
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| 138 |
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| 139 | internal PersistentStore Store
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| 140 | {
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| 141 | get { return _store; }
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| 142 | set { _store = value; }
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| 143 | }
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| 144 |
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| 145 |
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| 146 | private XmlSerializer _serializer = null;
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| 147 |
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| 148 | internal XmlSerializer Serializer
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| 149 | {
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| 150 | get
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| 151 | {
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| 152 | if (this._serializer == null)
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| 153 | {
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| 154 | this._serializer = new XmlSerializer(typeof(Settings));
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| 155 | }
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| 156 | return _serializer;
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| 157 | }
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| 158 | }
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| 159 |
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| 160 | /// <summary>
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| 161 | /// Get the string Setting named aString. Answer the defaultValue if the Setting named
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| 162 | /// aString does not exist in the receiver or it's Backup chain.
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| 163 | /// </summary>
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| 164 | /// <param name="aString">Name of the setting</param>
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| 165 | /// <param name="defaultValue">Default value</param>
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| 166 | /// <returns></returns>
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| 167 | public String Get(String aString, String defaultValue)
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| 168 | {
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| 169 | Setting hit = this.GetSetting(aString);
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| 170 |
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| 171 | return (hit == null) ? defaultValue : hit.Value;
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| 172 | }
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| 173 |
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| 174 | /// <summary>
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| 175 | /// Get the boolean Setting named aString. Answer the defaultValue if the Setting named
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| 176 | /// aString does not exist in the receiver or it's Backup chain.
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| 177 | /// </summary>
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| 178 | /// <param name="aString">Name of the setting</param>
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| 179 | /// <param name="defaultValue">Default value</param>
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| 180 | /// <returns></returns>
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| 181 | public bool Get(String aString, bool defaultValue)
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| 182 | {
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| 183 | Setting hit = this.GetSetting(aString);
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| 184 |
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| 185 | return (hit == null) ? defaultValue : "True".Equals(hit.Value,StringComparison.InvariantCultureIgnoreCase);
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| 186 | }
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| 187 |
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| 188 | /// <summary>
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| 189 | /// Get the Integer Setting named aString. Answer the defaultValue if the Setting named
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| 190 | /// aString does not exist in the receiver or it's Backup chain.
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| 191 | /// </summary>
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| 192 | /// <param name="aString">Name of the setting</param>
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| 193 | /// <param name="defaultValue">Default value</param>
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| 194 | /// <returns></returns>
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| 195 | public int Get(String aString, int defaultValue)
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| 196 | {
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| 197 | Setting hit = this.GetSetting(aString);
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| 198 |
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| 199 | int value = defaultValue;
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| 200 |
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| 201 | return (hit == null) ? defaultValue : (int.TryParse(hit.Value, out value) ? value : defaultValue);
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| 202 | }
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| 203 |
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| 204 |
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| 205 | internal Setting GetLocalSetting(String aString)
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| 206 | {
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| 207 | Setting result = null;
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| 208 |
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| 209 | if (this.SettingLookup.TryGetValue(aString.ToLower(), out result))
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| 210 | {
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| 211 | return result;
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| 212 | }
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| 213 | else
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| 214 | {
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| 215 | return null;
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| 216 | }
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| 217 | }
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| 218 |
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| 219 |
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| 220 | internal Setting GetSetting(String aString)
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| 221 | {
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| 222 | Setting result = this.GetLocalSetting(aString);
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| 223 |
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| 224 | if (result !=null)
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| 225 | {
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| 226 | return result;
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| 227 | }
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| 228 | else if (this.BackupSettings != null)
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| 229 | {
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| 230 | return this.BackupSettings.GetSetting(aString);
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| 231 | }
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| 232 | else
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| 233 | {
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| 234 | return null;
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| 235 | }
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| 236 | }
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| 237 |
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| 238 | /// <summary>
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| 239 | /// Merge the settings from someSettings into the receiver
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| 240 | /// </summary>
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| 241 | /// <param name="someSettings">Settings to copy</param>
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| 242 | public void MergeSettings(Settings someSettings)
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| 243 | {
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| 244 | someSettings.SettingList.ForEach(each => this.AddSetting(each));
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| 245 | }
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| 246 |
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| 247 | internal Dictionary<String, Setting> BuildLookup(List<Setting> someSettings)
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| 248 | {
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| 249 | Dictionary<String, Setting> answer = new Dictionary<string, Setting>();
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| 250 | foreach (Setting each in someSettings)
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| 251 | {
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| 252 | answer[each.Name.ToLower()] = each;
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| 253 | }
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| 254 | return answer;
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| 255 | }
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| 256 |
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| 257 | internal void AddSetting(Setting aSetting)
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| 258 | {
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| 259 | Setting hit = this.GetSetting(aSetting.Name.ToLower());
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| 260 | if (hit != null)
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| 261 | {
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| 262 | this.SettingList.Remove(hit);
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| 263 | }
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| 264 |
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| 265 | this.SettingList.Add(aSetting);
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| 266 | this._settingLookup = null;
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| 267 | }
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| 268 |
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| 269 |
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| 270 | /// <summary>
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| 271 | /// Load the receiver's settings from the PersistentStore
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| 272 | /// </summary>
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| 273 | public void Load()
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| 274 | {
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| 275 | this.SettingList = this.Store.Read<List<Setting>>(this.StorageKeys);
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| 276 | if (this.SettingList == null)
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| 277 | this.SettingList = new List<Setting>();
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| 278 |
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| 279 | }
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| 280 |
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| 281 | /// <summary>
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| 282 | /// Save the receiver's settings to the PersistentStore
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| 283 | /// </summary>
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| 284 | public void Save()
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| 285 | {
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| 286 | this.Store.Write<List<Setting>>(this.SettingList, this.StorageKeys);
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| 287 | }
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| 288 |
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| 289 | }
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| 290 | }
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