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
33CPathNavigator::CPathNavigator(const std::string &strPath)
34{
35    init(strPath);
36}
37
38void CPathNavigator::init(const std::string &strPath)
39{
40    Tokenizer tokenizer(strPath, "/");
41
42    _astrItems = tokenizer.split();
43
44    _bValid = checkPathFormat(strPath);
45}
46
47bool CPathNavigator::isPathValid() const
48{
49    return _bValid;
50}
51
52// Navigate through
53bool 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 =
67            "Path not complete: " + getCurrentPath() + ", trying to access to " + strItemName;
68
69        return false;
70    }
71
72    if (*pStrChildName != strItemName) {
73
74        strError = "Path not found: " + getCurrentPath() + ", expected: " + strItemName +
75                   " but found: " + *pStrChildName;
76
77        return false;
78    }
79
80    return true;
81}
82
83std::string *CPathNavigator::next()
84{
85    if (_currentIndex < _astrItems.size()) {
86
87        return &_astrItems[_currentIndex++];
88    }
89
90    return NULL;
91}
92
93std::string CPathNavigator::getCurrentPath() const
94{
95    std::string strPath = "/";
96
97    if (!_currentIndex) {
98
99        return strPath;
100    }
101
102    size_t item;
103    for (item = 0; item < _currentIndex - 1; item++) {
104
105        strPath += _astrItems[item] + "/";
106    }
107
108    strPath += _astrItems[item];
109
110    return strPath;
111}
112
113bool CPathNavigator::checkPathFormat(const std::string &strUpl)
114{
115    return strUpl[0] == '/';
116}
117