Home | History | Annotate | Download | only in parameter 
      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 "ElementLocator.h"
     31 #include "PathNavigator.h"
     32 
     33 using std::string;
     34 
     35 CElementLocator::CElementLocator(CElement *pSubRootElement, bool bStrict)
     36     : _pSubRootElement(pSubRootElement), _bStrict(bStrict)
     37 {
     38 }
     39 
     40 // Locate element
     41 bool CElementLocator::locate(const string &strPath, CElement **ppElement, string &strError)
     42 {
     43     CPathNavigator pathNavigator(strPath);
     44 
     45     if (!pathNavigator.isPathValid()) {
     46 
     47         strError = "Invalid Path";
     48 
     49         return false;
     50     }
     51 
     52     // Sub root element?
     53     string *pStrChildName = pathNavigator.next();
     54 
     55     if (!pStrChildName) {
     56 
     57         if (_bStrict) {
     58 
     59             strError = "Path not found: " + strPath;
     60 
     61             return false;
     62         }
     63         // Empty path
     64         return true;
     65     }
     66 
     67     if (*pStrChildName != _pSubRootElement->getName()) {
     68 
     69         strError = "Path not found: " + strPath;
     70 
     71         return false;
     72     }
     73 
     74     // Find in tree
     75     *ppElement = _pSubRootElement->findDescendant(pathNavigator);
     76 
     77     if (!*ppElement) {
     78 
     79         strError = "Path not found: " + strPath;
     80 
     81         return false;
     82     }
     83 
     84     return true;
     85 }
     86