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      1 /*
      2  * Copyright (c) 2011-2015, 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 "XmlSerializingContext.h"
     31 #include <libxml/xmlerror.h>
     32 #include <cstdio>
     33 
     34 CXmlSerializingContext::CXmlSerializingContext(std::string &strError)
     35     : utility::ErrorContext(strError)
     36 {
     37     xmlSetStructuredErrorFunc(this, structuredErrorHandler);
     38 }
     39 
     40 CXmlSerializingContext::~CXmlSerializingContext()
     41 {
     42     // TODO: restore the previous handler
     43     xmlSetStructuredErrorFunc(NULL, NULL);
     44     prependToError(_strXmlError);
     45 }
     46 
     47 void CXmlSerializingContext::appendLineToError(const std::string &strAppend)
     48 {
     49     appendToError("\n" + strAppend);
     50 }
     51 
     52 /** XML error handler
     53   *
     54   * @param[in] userData pointer to the serializing context
     55   * @param[in] error the xml error
     56   *
     57   */
     58 void CXmlSerializingContext::structuredErrorHandler(void *userData, xmlErrorPtr error)
     59 {
     60     CXmlSerializingContext *self = static_cast<CXmlSerializingContext *>(userData);
     61 
     62     std::string filename = (error->file != NULL) ? error->file : "(user input)";
     63     // xmlErrorPtr->int2 contains the column; see xmlerror.h
     64     self->_strXmlError += filename + ":" + std::to_string(error->line) + ":" +
     65                           std::to_string(error->int2) + ": " + error->message;
     66 }
     67