WebSharp Aspect改进（续2）

    接着上次在《朗志轻量级项目管理解决方案》中对Aspect的改进，
注意，这里我们实现了IXmlSerialization接口，以实现自定义的反序列化操作，还应注意的是在反串行的过程中，这里我们使用了一个自已实现的深拷贝DeepCopy

public class AspectCollection:CollectionBase,IXmlSerializable
    {
        public AspectCollection()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }
        public void Add(AspectItem ai)
        {
            this.InnerList.Add(ai);
        }
        public new AspectItem this[int index]
        {
            get
            {
                return this.InnerList[index] as AspectItem;
            }
            set
            {
                this.InnerList[index]=value;
            }

        }
        IXmlSerializable 成员#region IXmlSerializable 成员

        public void WriteXml(XmlWriter writer)
        {
            // TODO:  添加 AspectCollection.WriteXml 实现
            foreach(AspectItem ai in this.InnerList)
            {
                writer.WriteStartElement("Aspect");
                writer.WriteAttributeString("","type","",ai.Type);
                writer.WriteAttributeString("","deploy-model","",ai.DeployModel);
                writer.WriteAttributeString("","pointcut-type","",ai.PointCutType);
                writer.WriteAttributeString("","action-position","",ai.ActionPosition);
                ai.Rules.WriteXml(writer);
                writer.WriteEndElement();
             }
        }

        public System.Xml.Schema.XmlSchema GetSchema()
        {
            // TODO:  添加 AspectCollection.GetSchema 实现
            return null;
        }

        public void ReadXml(XmlReader reader)
        {
            // TODO:  添加 AspectCollection.ReadXml 实现
            base.Clear();
            reader.MoveToContent();
            AspectCollection ac=new AspectCollection();
            RuleCollection rc=new RuleCollection();
            AspectItem ai=new AspectItem();
            while(reader.Read())
            {
                if (reader.IsStartElement("Aspect"))
                {
                    ai=new AspectItem();
                    rc.Clear();
                    reader.MoveToAttribute("type");
                    ai.Type=reader.Value;
                    reader.MoveToAttribute("deploy-model");
                    ai.DeployModel=reader.Value;
                    reader.MoveToAttribute("pointcut-type");
                    ai.PointCutType=reader.Value;
                    reader.MoveToAttribute("action-position");
                    ai.ActionPosition=reader.Value;
                    this.Add(ai);
                    continue;
                }

                if (reader.IsStartElement("Rule"))
                {
                    RuleItem ri=new RuleItem();
                    reader.MoveToAttribute("type");
                    ri.type=reader.Value;
                    reader.MoveToAttribute("match");
                    ri.match=reader.Value;
                    rc.Add(ri);
                    ai.Rules=rc.DeepCopy();
                }

            }        
        }

这里我使用了.net内置的序列化功能

using System;
using System.Xml.Serialization;
namespace Langzhi.Aspect
{
    /**//// <summary>
    /// AspectItem 的摘要说明。
    /// </summary>
    [Serializable()]
    public class AspectItem
    {
        public AspectItem()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }
        private string m_Type;
        private string m_DeployModel;
        private string m_PointCutType;
        private string m_ActionPosition;
        private RuleCollection m_RuleCollection;
//        private string m_ID;
        private string m_AssemblyName;
        private string m_ClassName;
        [XmlAttribute("type")]
        public string Type
        {
            get
            {
                return this.m_Type;
            }
            set
            {
                this.m_Type=value;
            }
        }
        [XmlAttribute("deploy-model")]
        public string DeployModel
        {
            get
            {
                return this.m_DeployModel;
            }
            set
            {
                this.m_DeployModel=value;
            }
        }
        [XmlAttribute("pointcut-type")]
        public string PointCutType
        {
            get
            {
                return this.m_PointCutType;
            }
            set
            {
                this.m_PointCutType=value;
            }
        }
        [XmlAttribute("action-position")]
        public string ActionPosition
        {
            get
            {
                return this.m_ActionPosition;
            }
            set
            {
                this.m_ActionPosition=value;
            }
        }
//        [XmlAttribute("id")]
//        public string ID
//        {
//            get
//            {
//                return this.m_ID;
//            }
//            set
//            {
//                this.m_ID = value;
//            }
//            
//        }
        [NonSerialized()]
        public string ID;
        [NonSerialized()]
        public string AssemblyName;
        [NonSerialized()]
        public string ClassName;
        [NonSerialized()]
        public IAspect SingletonAspect;
        public RuleCollection Rules
        {
            get
            {
                return this.m_RuleCollection;                
            }
            set
            {
                this.m_RuleCollection=value;
            }
        }

    }
}

    public class RuleCollection:CollectionBase//,IXmlSerializable//此处可以不用实现IXmlSerializable接口
    {
        static readonly log4net.ILog log=log4net.LogManager.GetLogger(typeof(RuleCollection));
        public RuleCollection()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }
        public void Add(RuleItem ari)
        {
            this.InnerList.Add(ari);
        }
        public RuleItem this[int index]
        {
            get
            {
                return (RuleItem)this.List[index];
            }
            set
            {
                this.InnerList[index]=value;
            }
        }
        IXmlSerializable 成员#region IXmlSerializable 成员

        public void WriteXml(XmlWriter writer)
        {
            // TODO:  添加 AuthenticationRuleCollection.WriteXml 实现
            for (int i=0;i<this.InnerList.Count;i++)
            {
                writer.WriteStartElement("Rule");
                writer.WriteStartAttribute("type","");
                writer.WriteString(this[i].type);
                writer.WriteEndAttribute();
                writer.WriteStartAttribute("match","");
                writer.WriteString(this[i].match);
                writer.WriteEndAttribute();
                writer.WriteEndElement();
            }
        }

        public System.Xml.Schema.XmlSchema GetSchema()
        {
            // TODO:  添加 AuthenticationRuleCollection.GetSchema 实现
            return null;
        }

        public void ReadXml(XmlReader reader)
        {
            // TODO:  添加 AuthenticationRuleCollection.ReadXml 实现
            base.Clear();
            reader.MoveToContent();
            while(reader.Read())
            {
                if (reader.IsStartElement("Rule"))
                {
                    RuleItem ari=new RuleItem();
                    reader.MoveToAttribute("type");
                    ari.type=reader.Value;
                    reader.MoveToAttribute("match");
                    ari.match=reader.Value;
                    this.Add(ari);
                    reader.MoveToElement();
                }

            }
        }

        #endregion
        /**//// <summary>
        /// 
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        public RuleCollection FindCollectionByType(string type)
        {
            type=type.Trim().ToLower();
            RuleCollection rc=new RuleCollection();
            foreach(RuleItem ri in this.InnerList)
            {
                if (ri.type.ToLower()==type)
                {
                    rc.Add(ri);
                }
            }
            if (rc.Count!=0)
            {
                return rc;
            }
            else
            {
                return null;
            }
        }

        public bool IsMatch(IMethodMessage mmsg,AspectItem aspectInfo)
        {
//            if (this.InnerList==null)
//            {
//                return false;
//            }
            foreach (RuleItem ri in this.InnerList)
            {
                //是否匹配类和方法
                string[] match= ri.match.Split(',');
                string classNamePattern= string.Format("^{0}$",match[0]);
                string methodNamePattern = string.Format("^{0}$",match[1]);
//                log.Debug(string.Format("classNamePattern:{0}", classNamePattern));
//                log.Debug(string.Format("methodNamePattern:{0}", methodNamePattern));
//                log.Debug(mmsg.MethodBase.ReflectedType.FullName);
//                log.Debug(mmsg.MethodName);
//                log.Debug(mmsg.Properties["__TypeName"].ToString().Split(',')[0].ToString());
//                log.Debug(mmsg.Properties["__MethodName"].ToString());
//                log.Debug(mmsg.MethodBase.ReflectedType.Name);
                if (Regex.IsMatch(mmsg.MethodBase.ReflectedType.FullName,classNamePattern))
                {
                    log.Debug(string.Format("匹配类:{0}", classNamePattern));
                    if (mmsg.MethodBase.IsConstructor && aspectInfo.PointCutType.IndexOf("Construction")>-1)
                    {
                        log.Debug("construction");
                        log.Debug(mmsg.MethodName);
                        return true;
                    }
                    if ((aspectInfo.PointCutType.IndexOf("Method")>-1 || aspectInfo.PointCutType.IndexOf("Property")>-1) && Regex.IsMatch(mmsg.MethodName,methodNamePattern)==true)
                    {
                        log.Debug("method or property");
                        log.Debug(mmsg.MethodName);
                        return true;
                    }
                }
            }
            return false;
        }
        public static byte[] Serialize(RuleCollection rc)
        {
            BinaryFormatter bf=new BinaryFormatter();
            MemoryStream ms=new MemoryStream();
            byte[] b;
            bf.Serialize(ms, rc);
            ms.Position = 0;
            b=new byte[ms.Length];
            ms.Read(b, 0, b.Length);
            ms.Close();
            return b;
        }
        public static RuleCollection Deserizlize(byte[] b)
        {
            if (b.Length==0)
            {
                return null;
            }
//            try
//            {
                BinaryFormatter bf=new BinaryFormatter();
                MemoryStream ms=new MemoryStream();
                ms.Write(b, 0, b.Length);
                ms.Position = 0;
                RuleCollection rc = (RuleCollection) bf.Deserialize(ms);
                ms.Close();
                return rc;
//            }
//            catch (System.Exception e)
//            {
//                
//            }

        }
        public RuleCollection DeepCopy()
        {
            BinaryFormatter bf=new BinaryFormatter();
            MemoryStream ms=new MemoryStream();
            byte[] b;
            bf.Serialize(ms, this);
            ms.Position = 0;
            RuleCollection rc = (RuleCollection) bf.Deserialize(ms);
            ms.Close();
            return rc;
        }
    }

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