public static TypeMappingDescription Get(Type type)
{
if (type == null)
{
return(null);
}
if (_cacheList.Keys.Contains(type))
{
return(_cacheList[type]);
}
else
{
TypeMappingDescription cacheCodon = new TypeMappingDescription(type);
Monitor.Enter(_cacheList);
if (_cacheList.Keys.Contains(type) == false)
{
_cacheList.Add(type, cacheCodon);
}
Monitor.Exit(_cacheList);
return(cacheCodon);
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Enterprises.Framework.Plugin.Mapper
{
/// <summary>
/// 拷贝行为只针对 sourceObject 和 targetObject 所共有的属性
/// 在 sourceObject 和 targetObject 中的待拷贝的属性值的类型处理：
/// 如果是值类型，直接拷贝，如果是引用类型，sourceObject 中的属性的类型 必须 和 targetObject 中的属性的类型一致，或是它的派生类
/// 如果要支持类型不一致的属性自动进行类型转换，你可以在 PropertyMappingDescription 这个类中实现转换器功能
/// 拷贝行为 不会 改变 targetObject 中不需要被拷贝的属性的值
/// 你可以组合使用几个方法来从多个对象中拷贝指定的属性值到一个 targetObject
/// </summary>
public class ShengMapper
{
/// <summary>
/// 拷贝两个对象所共有的全部属性
/// </summary>
/// <param name="sourceObject"></param>
/// <param name="targetObject"></param>
public static void SetValues(object sourceObject, object targetObject)
{
SetValues(sourceObject, targetObject, null, null);
}
/// <summary>
/// 拷贝指定的 properties
/// 如果指定的属性不存在于 sourceObject 或 targetObject，将跳过不存在的属性
/// </summary>
/// <param name="sourceObject"></param>
/// <param name="targetObject"></param>
/// <param name="properties"></param>
public static void SetValuesWithProperties(object sourceObject, object targetObject, string[] properties)
{
SetValues(sourceObject, targetObject, properties, null);
}
/// <summary>
/// 拷贝两个对象所共有的全部属性，除了指定的 properties
/// </summary>
/// <param name="sourceObject"></param>
/// <param name="targetObject"></param>
/// <param name="properties"></param>
public static void SetValuesWithoutProperties(object sourceObject, object targetObject, string[] properties)
{
SetValues(sourceObject, targetObject, null, properties);
}
private static void SetValues(object sourceObject, object targetObject, string[] withProperties, string[] withoutProperties)
{
if (sourceObject == null || targetObject == null)
throw new ArgumentNullException();
Type sourceObjectType = sourceObject.GetType();
Type targetObjectType = targetObject.GetType();
TypeMappingDescription sourceObjectTypeCache = TypeMappingCache.Get(sourceObjectType);
TypeMappingDescription targetObjectCache = TypeMappingCache.Get(targetObjectType);
foreach (PropertyMappingDescription sourceProperty in sourceObjectTypeCache.PropertyList)
{
if (withProperties != null && withProperties.Length > 0 && withProperties.Contains(sourceProperty.Name) == false)
continue;
if (withoutProperties != null && withoutProperties.Length > 0 && withoutProperties.Contains(sourceProperty.Name))
continue;
if (sourceProperty.CanRead == false)
continue;
if (targetObjectCache.ContainsProperty(sourceProperty.Name) == false)
continue;
object sourcePropertyValue = sourceObjectTypeCache.GetValue(sourceObject, sourceProperty.Name);
targetObjectCache.SetValue(targetObject, sourceProperty.Name, sourcePropertyValue);
}
}
}
}