EntLib Validation Application Block 01 通过配置文件，自行指定对象自身方法进行验证

EntLib Index

通过配置文件，指定该任意公共（形如: CustomValidate(ValidationResults results)）

目标：在领域对象层中，达到不引用 Entlib 的 dll 就可以应用Entlib的验证框架(演示类没有表达出，你可以试试)

CustomObjectValidator 验证对象

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.Validation;
using System.Reflection;
using Microsoft.Practices.EnterpriseLibrary.Common.Configuration;

namespace IIFOR.EntLib
{
    [ConfigurationElementType(typeof(CustomObjectValidatorData))]
    public class CustomObjectValidator : Validator
    {
        MethodInfo methodInfo;
        string methodName;
        public CustomObjectValidator()
            : this(null, null, null)
        {
        }

        public CustomObjectValidator(string methodName, string messageTemplate, string tag)
            : base(messageTemplate, tag)
        {
            this.methodName = methodName;
            if (string.IsNullOrWhiteSpace(this.methodName))
            {
                this.methodName = "CustomValidate";
            }
        }

        protected override string DefaultMessageTemplate
        {
            get { return null; }
        }

        public override void DoValidate(object objectToValidate, object currentTarget, string key, ValidationResults validationResults)
        {
            if (null == objectToValidate)
            {
                this.LogValidationResult(validationResults, "目标为null或引用一个不兼容的类型的一个实例。", currentTarget, key);
                return;
            }
            if (methodInfo == null)
            {
                methodInfo = objectToValidate.GetType().GetMethod(methodName, BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase);
            }
            if (methodInfo == null)
            {
                return;
            }
            else if (!this.methodInfo.DeclaringType.IsAssignableFrom(objectToValidate.GetType()))
            {
                this.LogValidationResult(validationResults, "目标引用一个不兼容的类型的一个实例。", currentTarget, key);
            }
            else
            {
                try
                {
                    this.methodInfo.Invoke(objectToValidate, new object[] { validationResults });
                }
                catch (Exception)
                {
                    this.LogValidationResult(validationResults, "目标调用异常", currentTarget, key);
                }
            }
        }
    }
}

CustomObjectValidatorData config定义的类型

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.Common.Configuration.Design;
using Microsoft.Practices.EnterpriseLibrary.Validation.Configuration;
using System.Configuration;
using Microsoft.Practices.EnterpriseLibrary.Validation;

namespace IIFOR.EntLib
{
    public class CustomObjectValidatorData : ValueValidatorData
    {
        public CustomObjectValidatorData() { Type = typeof(CustomObjectValidator); }

        public CustomObjectValidatorData(string name)
            : base(name, typeof(CustomObjectValidator))
        { }

        private const string MethodNamePropertyName = "methodName";
        [ConfigurationProperty(MethodNamePropertyName)]
        public string MethodName
        {
            get { return (string)this[MethodNamePropertyName]; }
            set { this[MethodNamePropertyName] = value; }
        }

        protected override Validator DoCreateValidator(Type targetType)
        {
            return new CustomObjectValidator(MethodName, MessageTemplate, Tag);
        }
    }
}

ValidateEntityClass 测试对象

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.Validation.Validators;
using Microsoft.Practices.EnterpriseLibrary.Validation;
using IIFOR.IBase;

namespace Test.IIFOR.EntLib
{
    [HasSelfValidation]
    public class ValidateEntityClass
    {
        public ValidateEntityClass()
        {
            this.Code = "Code64649797";
        }
        public string Code { get; set; }


        public string DName { get; set; }

        [SelfValidation(Ruleset = CONSTR.DefaultSetName)]
        public void Validate(ValidationResults results)
        {
            results.AddResult(new ValidationResult("TTT", this, "TTT", "", null));
        }

        public void CustomValidate(ValidationResults results)
        {
            results.AddResult(new ValidationResult("CustomValidate", this, "CustomValidate", "", null));
        }

        public void CustomValidate1(ValidationResults results)
        {
            results.AddResult(new ValidationResult("CustomValidate1", this, "CustomValidate1", "", null));
        }
    }
}

validator.config 配置文件

<?xml version="1.0"?>
<validation>
  <type name="Test.IIFOR.EntLib.ValidateEntityClass" assemblyName="Test.IIFOR.EntLib">
    <ruleset name="default">
      <add type="IIFOR.EntLib.CustomObjectValidator, IIFOR.EntLib" name="CustomObjectValidator" />
      <add type="IIFOR.EntLib.CustomObjectValidator, IIFOR.EntLib" name="CustomObjectValidator1" methodName="CustomValidate1" />
      <properties>
        <property name="Code">
          <validator type="Microsoft.Practices.EnterpriseLibrary.Validation.Validators.StringLengthValidator, Microsoft.Practices.EnterpriseLibrary.Validation"
              upperBound="3" name="String Length Validator" />
        </property>
      </properties>
    </ruleset>
  </type>
</validation>