1 /* <!-- copyright */
2 /*
3  * aria2 - The high speed download utility
4  *
5  * Copyright (C) 2009 Tatsuhiro Tsujikawa
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  *
21  * In addition, as a special exception, the copyright holders give
22  * permission to link the code of portions of this program with the
23  * OpenSSL library under certain conditions as described in each
24  * individual source file, and distribute linked combinations
25  * including the two.
26  * You must obey the GNU General Public License in all respects
27  * for all of the code used other than OpenSSL.  If you modify
28  * file(s) with this exception, you may extend this exception to your
29  * version of the file(s), but you are not obligated to do so.  If you
30  * do not wish to do so, delete this exception statement from your
31  * version.  If you delete this exception statement from all source
32  * files in the program, then also delete it here.
33  */
34 /* copyright --> */
35 #ifndef D_XML_RPC_REQUEST_PARSER_CONTROLLER_H
36 #define D_XML_RPC_REQUEST_PARSER_CONTROLLER_H
37 
38 #include "common.h"
39 
40 #include <stack>
41 #include <string>
42 
43 #include "ValueBase.h"
44 
45 namespace aria2 {
46 
47 namespace rpc {
48 
49 class XmlRpcRequestParserController {
50 private:
51   struct StateFrame {
52     std::unique_ptr<ValueBase> value_;
53     std::string name_;
54 
validMemberStateFrame55     bool validMember() const { return value_ && !name_.empty(); }
56 
resetStateFrame57     void reset()
58     {
59       value_.reset();
60       name_.clear();
61     }
62   };
63 
64   std::stack<StateFrame> frameStack_;
65 
66   StateFrame currentFrame_;
67 
68   std::string methodName_;
69 
70 public:
71   void pushFrame();
72 
73   // Pops StateFrame p from frameStack_ and set p[currentFrame_.name_]
74   // = currentFrame_.value_ and currentFrame_ = p;
75   void popStructFrame();
76 
77   // Pops StateFrame p from frameStack_ and add currentFrame_.value_
78   // to p and currentFrame_ = p;
79   void popArrayFrame();
80 
81   void setCurrentFrameValue(std::unique_ptr<ValueBase> value);
82 
83   void setCurrentFrameName(std::string name);
84 
85   const std::unique_ptr<ValueBase>& getCurrentFrameValue() const;
86 
87   std::unique_ptr<ValueBase> popCurrentFrameValue();
88 
89   void setMethodName(std::string methodName);
90 
getMethodName()91   const std::string& getMethodName() const { return methodName_; }
92 
93   void reset();
94 };
95 
96 } // namespace rpc
97 
98 } // namespace aria2
99 
100 #endif // D_XML_RPC_REQUEST_PARSER_CONTROLLER_H
101