add

+/*
+ * @Author: your name
+ * @Date: 2021-04-26 15:33:40
+ * @LastEditTime: 2021-04-26 15:33:42
+ * @LastEditors: your name
+ * @Description: In User Settings Edit
+ * @FilePath: /dmapserver/src/server/dmpfilterresponsedecorator.h
+ */
+/**************************************************************************
+* file:              dmpfilterresponsedecorator.h
+
+* Author:            wanzhongping
+* Date:              2021-03-09 15:08:07
+* Email:             zhongpingw@chinadci.com
+* copyright:         广州城市信息研究所有限公司
+***************************************************************************/
+
+#ifndef __dmpfilterresponsedecorator_h__
+#define __dmpfilterresponsedecorator_h__
+
+#include "dmpserverresponse.h"
+#include "dmpserverfilter.h"
+#include <map>
+
+//装饰类，增加DmpServerResponse的过滤功能
+class DmpFilterResponseDecorator: public DmpServerResponse
+{
+  public:
+
+    DmpFilterResponseDecorator( DmpServerFiltersMap filters, DmpServerResponse &response );
+
+    void SetHeader( const std::string &key, const std::string &value ) override {  response_.SetHeader( key, value ); }
+
+    void RemoveHeader( const std::string &key ) override { response_.RemoveHeader( key ); }
+
+    std::string Header( const std::string &key ) const override { return response_.Header( key ); }
+
+    ParameterMap Headers() const override { return response_.Headers(); }
+
+    void setStatusCode( int code ) override { response_.setStatusCode( code ); }
+
+    int statusCode() const override { return response_.statusCode(); }
+
+    void SendError( int code,  const std::string &message ) override { response_.SendError(code, message); }
+    
+    void Write(const std::string data) override;
+
+    void WriteContent(const void * content, int length =0) override;
+    
+    void Start();
+
+    void Flush();
+
+    void Finish();
+
+    void Clear() override { response_.Clear(); }
+
+  private:
+    DmpServerFiltersMap  filters_;
+    DmpServerResponse   &response_;
+};
+
+#endif //__dmpfilterresponsedecorator_h__