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115 lines
3.9 KiB
C#
115 lines
3.9 KiB
C#
using System;
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using System.Collections.Generic;
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namespace MediaBrowser.Model.Entities
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{
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/// <summary>
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/// Since BaseItem and DTOBaseItem both have ProviderIds, this interface helps avoid code repition by using extension methods
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/// </summary>
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public interface IHasProviderIds
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{
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/// <summary>
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/// Gets or sets the provider ids.
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/// </summary>
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/// <value>The provider ids.</value>
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Dictionary<string, string> ProviderIds { get; set; }
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}
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/// <summary>
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/// Class ProviderIdsExtensions
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/// </summary>
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public static class ProviderIdsExtensions
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{
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/// <summary>
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/// Determines whether [has provider identifier] [the specified instance].
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/// </summary>
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/// <param name="instance">The instance.</param>
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/// <param name="provider">The provider.</param>
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/// <returns><c>true</c> if [has provider identifier] [the specified instance]; otherwise, <c>false</c>.</returns>
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public static bool HasProviderId(this IHasProviderIds instance, MetadataProviders provider)
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{
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return !string.IsNullOrEmpty(instance.GetProviderId(provider.ToString()));
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}
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/// <summary>
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/// Gets a provider id
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/// </summary>
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/// <param name="instance">The instance.</param>
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/// <param name="provider">The provider.</param>
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/// <returns>System.String.</returns>
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public static string GetProviderId(this IHasProviderIds instance, MetadataProviders provider)
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{
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return instance.GetProviderId(provider.ToString());
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}
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/// <summary>
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/// Gets a provider id
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/// </summary>
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/// <param name="instance">The instance.</param>
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/// <param name="name">The name.</param>
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/// <returns>System.String.</returns>
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public static string GetProviderId(this IHasProviderIds instance, string name)
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{
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if (instance == null)
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{
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throw new ArgumentNullException("instance");
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}
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if (instance.ProviderIds == null)
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{
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return null;
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}
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string id;
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instance.ProviderIds.TryGetValue(name, out id);
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return id;
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}
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/// <summary>
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/// Sets a provider id
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/// </summary>
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/// <param name="instance">The instance.</param>
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/// <param name="name">The name.</param>
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/// <param name="value">The value.</param>
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public static void SetProviderId(this IHasProviderIds instance, string name, string value)
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{
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if (instance == null)
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{
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throw new ArgumentNullException("instance");
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}
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// If it's null remove the key from the dictionary
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if (string.IsNullOrEmpty(value))
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{
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if (instance.ProviderIds != null)
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{
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if (instance.ProviderIds.ContainsKey(name))
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{
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instance.ProviderIds.Remove(name);
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}
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}
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}
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else
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{
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// Ensure it exists
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if (instance.ProviderIds == null)
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{
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instance.ProviderIds = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
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}
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instance.ProviderIds[name] = value;
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}
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}
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/// <summary>
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/// Sets a provider id
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/// </summary>
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/// <param name="instance">The instance.</param>
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/// <param name="provider">The provider.</param>
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/// <param name="value">The value.</param>
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public static void SetProviderId(this IHasProviderIds instance, MetadataProviders provider, string value)
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{
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instance.SetProviderId(provider.ToString(), value);
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}
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}
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}
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