277 lines
11 KiB
C#
277 lines
11 KiB
C#
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Swan.Lite.Reflection;
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using Swan.Mappers;
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using Swan.Reflection;
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namespace Swan
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{
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/// <summary>
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/// Extension methods.
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/// </summary>
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public static partial class Extensions
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{
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/// <summary>
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/// Iterates over the public, instance, readable properties of the source and
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/// tries to write a compatible value to a public, instance, writable property in the destination.
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/// </summary>
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/// <typeparam name="T">The type of the source.</typeparam>
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/// <param name="source">The source.</param>
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/// <param name="target">The target.</param>
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/// <param name="ignoreProperties">The ignore properties.</param>
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/// <returns>
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/// Number of properties that was copied successful.
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/// </returns>
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public static int CopyPropertiesTo<T>(this T source, object target, params string[]? ignoreProperties)
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where T : class =>
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ObjectMapper.Copy(source, target, GetCopyableProperties(target), ignoreProperties);
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/// <summary>
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/// Iterates over the public, instance, readable properties of the source and
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/// tries to write a compatible value to a public, instance, writable property in the destination.
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/// </summary>
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/// <param name="source">The source.</param>
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/// <param name="target">The destination.</param>
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/// <param name="propertiesToCopy">Properties to copy.</param>
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/// <returns>
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/// Number of properties that were successfully copied.
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/// </returns>
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public static int CopyOnlyPropertiesTo(this object source, object target, params string[]? propertiesToCopy)
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=> ObjectMapper.Copy(source, target, propertiesToCopy);
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/// <summary>
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/// Copies the properties to new instance of T.
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/// </summary>
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/// <typeparam name="T">The new object type.</typeparam>
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/// <param name="source">The source.</param>
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/// <param name="ignoreProperties">The ignore properties.</param>
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/// <returns>
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/// The specified type with properties copied.
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/// </returns>
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/// <exception cref="ArgumentNullException">source.</exception>
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public static T CopyPropertiesToNew<T>(this object source, string[]? ignoreProperties = null)
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where T : class
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{
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if (source == null)
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throw new ArgumentNullException(nameof(source));
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var target = Activator.CreateInstance<T>();
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ObjectMapper.Copy(source, target, GetCopyableProperties(target), ignoreProperties);
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return target;
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}
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/// <summary>
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/// Copies the only properties to new instance of T.
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/// </summary>
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/// <typeparam name="T">Object Type.</typeparam>
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/// <param name="source">The source.</param>
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/// <param name="propertiesToCopy">The properties to copy.</param>
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/// <returns>
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/// The specified type with properties copied.
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/// </returns>
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/// <exception cref="ArgumentNullException">source.</exception>
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public static T CopyOnlyPropertiesToNew<T>(this object source, params string[] propertiesToCopy)
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where T : class
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{
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if (source == null)
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throw new ArgumentNullException(nameof(source));
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var target = Activator.CreateInstance<T>();
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ObjectMapper.Copy(source, target, propertiesToCopy);
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return target;
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}
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/// <summary>
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/// Iterates over the keys of the source and tries to write a compatible value to a public,
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/// instance, writable property in the destination.
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/// </summary>
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/// <param name="source">The source.</param>
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/// <param name="target">The target.</param>
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/// <param name="ignoreKeys">The ignore keys.</param>
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/// <returns>Number of properties that was copied successful.</returns>
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public static int CopyKeyValuePairTo(
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this IDictionary<string, object> source,
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object target,
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params string[] ignoreKeys) =>
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source == null
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? throw new ArgumentNullException(nameof(source))
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: ObjectMapper.Copy(source, target, null, ignoreKeys);
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/// <summary>
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/// Iterates over the keys of the source and tries to write a compatible value to a public,
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/// instance, writable property in the destination.
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/// </summary>
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/// <typeparam name="T">Object Type.</typeparam>
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/// <param name="source">The source.</param>
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/// <param name="ignoreKeys">The ignore keys.</param>
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/// <returns>
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/// The specified type with properties copied.
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/// </returns>
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public static T CopyKeyValuePairToNew<T>(
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this IDictionary<string, object> source,
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params string[] ignoreKeys)
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{
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if (source == null)
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throw new ArgumentNullException(nameof(source));
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var target = Activator.CreateInstance<T>();
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source.CopyKeyValuePairTo(target, ignoreKeys);
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return target;
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}
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/// <summary>
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/// Does the specified action.
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/// </summary>
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/// <param name="action">The action.</param>
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/// <param name="retryInterval">The retry interval.</param>
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/// <param name="retryCount">The retry count.</param>
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public static void Retry(
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this Action action,
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TimeSpan retryInterval = default,
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int retryCount = 3)
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{
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if (action == null)
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throw new ArgumentNullException(nameof(action));
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Retry<object?>(() =>
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{
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action();
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return null;
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},
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retryInterval,
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retryCount);
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}
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/// <summary>
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/// Does the specified action.
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/// </summary>
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/// <typeparam name="T">The type of the source.</typeparam>
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/// <param name="action">The action.</param>
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/// <param name="retryInterval">The retry interval.</param>
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/// <param name="retryCount">The retry count.</param>
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/// <returns>
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/// The return value of the method that this delegate encapsulates.
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/// </returns>
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/// <exception cref="ArgumentNullException">action.</exception>
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/// <exception cref="AggregateException">Represents one or many errors that occur during application execution.</exception>
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public static T Retry<T>(
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this Func<T> action,
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TimeSpan retryInterval = default,
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int retryCount = 3)
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{
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if (action == null)
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throw new ArgumentNullException(nameof(action));
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if (retryInterval == default)
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retryInterval = TimeSpan.FromSeconds(1);
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var exceptions = new List<Exception>();
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for (var retry = 0; retry < retryCount; retry++)
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{
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try
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{
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if (retry > 0)
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Task.Delay(retryInterval).Wait();
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return action();
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}
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catch (Exception ex)
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{
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exceptions.Add(ex);
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}
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}
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throw new AggregateException(exceptions);
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}
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/// <summary>
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/// Gets the copyable properties.
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///
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/// If there is no properties with the attribute <c>AttributeCache</c> returns all the properties.
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/// </summary>
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/// <param name="this">The object.</param>
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/// <returns>
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/// Array of properties.
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/// </returns>
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/// <exception cref="ArgumentNullException">model.</exception>
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/// <seealso cref="AttributeCache"/>
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public static IEnumerable<string> GetCopyableProperties(this object @this)
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{
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if (@this == null)
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throw new ArgumentNullException(nameof(@this));
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var collection = PropertyTypeCache.DefaultCache.Value
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.RetrieveAllProperties(@this.GetType(), true);
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var properties = collection
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.Select(x => new
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{
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x.Name,
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HasAttribute = AttributeCache.DefaultCache.Value.RetrieveOne<CopyableAttribute>(x) != null,
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})
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.Where(x => x.HasAttribute)
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.Select(x => x.Name);
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return properties.Any()
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? properties
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: collection.Select(x => x.Name);
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}
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internal static void CreateTarget(
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this object source,
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Type targetType,
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bool includeNonPublic,
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ref object? target)
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{
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switch (source)
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{
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// do nothing. Simply skip creation
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case string _:
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break;
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// When using arrays, there is no default constructor, attempt to build a compatible array
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case IList sourceObjectList when targetType.IsArray:
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var elementType = targetType.GetElementType();
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if (elementType != null)
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target = Array.CreateInstance(elementType, sourceObjectList.Count);
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break;
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default:
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var constructors = ConstructorTypeCache.DefaultCache.Value
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.RetrieveAllConstructors(targetType, includeNonPublic);
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// Try to check if empty constructor is available
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if (constructors.Any(x => x.Item2.Length == 0))
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{
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target = Activator.CreateInstance(targetType, includeNonPublic);
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}
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else
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{
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var firstCtor = constructors
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.OrderBy(x => x.Item2.Length)
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.FirstOrDefault();
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target = Activator.CreateInstance(targetType,
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firstCtor?.Item2.Select(arg => arg.GetType().GetDefault()).ToArray());
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}
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break;
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}
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}
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internal static string GetNameWithCase(this string name, JsonSerializerCase jsonSerializerCase) =>
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jsonSerializerCase switch
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{
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JsonSerializerCase.PascalCase => char.ToUpperInvariant(name[0]) + name.Substring(1),
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JsonSerializerCase.CamelCase => char.ToLowerInvariant(name[0]) + name.Substring(1),
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JsonSerializerCase.None => name,
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_ => throw new ArgumentOutOfRangeException(nameof(jsonSerializerCase), jsonSerializerCase, null)
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};
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}
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}
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