1/*
2 * libjingle
3 * Copyright 2004--2005, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef _qname_h_
29#define _qname_h_
30
31#include <string>
32
33namespace buzz {
34
35
36class QName
37{
38public:
39  explicit QName();
40  QName(const QName & qname) : data_(qname.data_) { data_->AddRef(); }
41  explicit QName(bool add, const std::string & ns, const char * local);
42  explicit QName(bool add, const std::string & ns, const std::string & local);
43  explicit QName(const std::string & ns, const char * local);
44  explicit QName(const std::string & mergedOrLocal);
45  QName & operator=(const QName & qn) {
46    qn.data_->AddRef();
47    data_->Release();
48    data_ = qn.data_;
49    return *this;
50  }
51  ~QName();
52
53  const std::string & Namespace() const { return data_->namespace_; }
54  const std::string & LocalPart() const { return data_->localPart_; }
55  std::string Merged() const;
56  int Compare(const QName & other) const;
57  bool operator==(const QName & other) const;
58  bool operator!=(const QName & other) const { return !operator==(other); }
59  bool operator<(const QName & other) const { return Compare(other) < 0; }
60
61  class Data {
62  public:
63    Data(const std::string & ns, const std::string & local) :
64      namespace_(ns),
65      localPart_(local),
66      refcount_(1) {}
67
68    Data() : refcount_(0) {}
69
70    std::string namespace_;
71    std::string localPart_;
72    void AddRef() { refcount_++; }
73    void Release() { if (!--refcount_) { delete this; } }
74    bool Occupied() { return !!refcount_; }
75
76  private:
77    int refcount_;
78  };
79
80private:
81  Data * data_;
82};
83
84
85}
86
87#endif
88