1 /*
2 * Copyright (c) 2011-2014, Intel Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation and/or
13 * other materials provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors
16 * may be used to endorse or promote products derived from this software without
17 * specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 #include "PathNavigator.h"
31 #include "Tokenizer.h"
32
CPathNavigator(const std::string & strPath)33 CPathNavigator::CPathNavigator(const std::string& strPath) : _uiCurrentIndex(0)
34 {
35 init(strPath);
36 }
37
init(const std::string & strPath)38 void CPathNavigator::init(const std::string& strPath)
39 {
40 Tokenizer tokenizer(strPath, "/");
41
42 _astrItems = tokenizer.split();
43
44 _bValid = checkPathFormat(strPath);
45 }
46
isPathValid() const47 bool CPathNavigator::isPathValid() const
48 {
49 return _bValid;
50 }
51
52 // Navigate through
navigateThrough(const std::string & strItemName,std::string & strError)53 bool CPathNavigator::navigateThrough(const std::string& strItemName, std::string& strError)
54 {
55 if (!_bValid) {
56
57 strError = "Path not well formed: " + getCurrentPath();
58
59 return false;
60 }
61
62 std::string* pStrChildName = next();
63
64 if (!pStrChildName) {
65
66 strError = "Path not complete: " + getCurrentPath() +
67 ", trying to access to " + strItemName;
68
69 return false;
70 }
71
72 if (*pStrChildName != strItemName) {
73
74 strError = "Path not found: " + getCurrentPath() +
75 ", expected: " + strItemName + " but found: " + *pStrChildName;
76
77 return false;
78 }
79
80 return true;
81 }
82
next()83 std::string* CPathNavigator::next()
84 {
85 if (_uiCurrentIndex < _astrItems.size()) {
86
87 return &_astrItems[_uiCurrentIndex++];
88 }
89
90 return NULL;
91 }
92
getCurrentPath() const93 std::string CPathNavigator::getCurrentPath() const
94 {
95 std::string strPath = "/";
96
97 if (!_uiCurrentIndex) {
98
99 return strPath;
100 }
101
102 uint32_t uiItem;
103
104 for (uiItem = 0; uiItem < _uiCurrentIndex - 1; uiItem++) {
105
106 strPath += _astrItems[uiItem] + "/";
107 }
108
109 strPath += _astrItems[uiItem];
110
111 return strPath;
112 }
113
114
checkPathFormat(const std::string & strUpl)115 bool CPathNavigator::checkPathFormat(const std::string& strUpl)
116 {
117 return strUpl[0] == '/';
118 }
119