key-locator.hpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2013-2017 Regents of the University of California.
4  *
5  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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21 
22 #ifndef NDN_KEY_LOCATOR_HPP
23 #define NDN_KEY_LOCATOR_HPP
24 
26 #include "name.hpp"
27 
28 namespace ndn {
29 
31 {
32 public:
33  class Error : public tlv::Error
34  {
35  public:
36  explicit
37  Error(const std::string& what)
38  : tlv::Error(what)
39  {
40  }
41  };
42 
43  enum Type {
46  KeyLocator_None = 65535,
56  };
57 
58 public: // constructors
61  KeyLocator();
62 
65  explicit
66  KeyLocator(const Block& wire);
67 
71  KeyLocator(const Name& name);
72 
73 public: // encode and decode
77  template<encoding::Tag TAG>
78  size_t
79  wireEncode(EncodingImpl<TAG>& encoder) const;
80 
83  const Block&
84  wireEncode() const;
85 
90  void
91  wireDecode(const Block& wire);
92 
93 public: // attributes
94  bool
95  empty() const
96  {
97  return m_type == KeyLocator_None;
98  }
99 
100  Type
101  getType() const
102  {
103  return m_type;
104  }
105 
110  KeyLocator&
111  clear();
112 
116  const Name&
117  getName() const;
118 
123  KeyLocator&
124  setName(const Name& name);
125 
129  const Block&
130  getKeyDigest() const;
131 
137  KeyLocator&
138  setKeyDigest(const Block& keyDigest);
139 
144  KeyLocator&
145  setKeyDigest(const ConstBufferPtr& keyDigest);
146 
147 public: // EqualityComparable concept
148  bool
149  operator==(const KeyLocator& other) const;
150 
151  bool
152  operator!=(const KeyLocator& other) const
153  {
154  return !this->operator==(other);
155  }
156 
157 private:
158  Type m_type;
159  Name m_name;
160  Block m_keyDigest;
161 
162  mutable Block m_wire;
163 };
164 
166 
167 std::ostream&
168 operator<<(std::ostream& os, const KeyLocator& keyLocator);
169 
170 } // namespace ndn
171 
172 #endif // NDN_KEY_LOCATOR_HPP
Copyright (c) 2013-2017 Regents of the University of California.
Definition: common.hpp:66
std::ostream & operator<<(std::ostream &os, const Data &data)
Definition: data.cpp:274
KeyLocator & setName(const Name &name)
set Name element
void wireDecode(const Block &wire)
decode from wire encoding
Definition: key-locator.cpp:96
KeyLocator & setKeyDigest(const Block &keyDigest)
set KeyDigest element
Represents a TLV element of NDN packet format.
Definition: block.hpp:42
KeyLocator()
construct an empty KeyLocator
Definition: key-locator.cpp:35
indicates KeyLocator contains a Name
Definition: key-locator.hpp:49
#define NDN_CXX_DECLARE_WIRE_ENCODE_INSTANTIATIONS(ClassName)
Error(const std::string &what)
Definition: key-locator.hpp:37
const Name & getName() const
get Name element
const Block & getKeyDigest() const
get KeyDigest element
Type getType() const
bool empty() const
Definition: key-locator.hpp:95
indicates KeyLocator is empty (internal use only)
Definition: key-locator.hpp:46
Represents an absolute name.
Definition: name.hpp:42
indicates KeyLocator contains an unknown element
Definition: key-locator.hpp:55
KeyLocator & clear()
clear KeyLocator
const Block & wireEncode() const
Definition: key-locator.cpp:80
indicates KeyLocator contains a KeyDigest
Definition: key-locator.hpp:52
bool operator==(const KeyLocator &other) const
bool operator!=(const KeyLocator &other) const
represents an error in TLV encoding or decoding
shared_ptr< const Buffer > ConstBufferPtr
Definition: buffer.hpp:89