VXmlParser.cxx
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上传日期:2013-07-25
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const VXmlParser_cxx_Version =
- "$Id: VXmlParser.cxx,v 1.4 2000/12/18 23:49:08 bko Exp $";
- #include <assert.h>
- #include <stdio.h>
- #include <fstream.h>
- #include "VXmlParser.hxx"
- #include "VBadDataException.hxx"
- #include "parser.h"
- #include "tree.h"
- #include "debugXML.h"
- VXmlParser::VXmlParser(const VFile& file) throw (VBadDataException&)
- : _doc(NULL)
- {
- char buf[256];
- if (!VFileBrowser::fileExists(file))
- {
- sprintf(buf, "File %s does not exist." , file.getFullName().c_str());
- throw VBadDataException(buf, __FILE__, __LINE__, 0);
- }
- ifstream inRead(file.getFullName().c_str());
- string dRead;
- while (inRead.getline(buf, 256))
- {
- dRead += buf;
- }
- if (dRead.size()) parseContents(dRead);
- }
- VXmlParser::VXmlParser(const string& contents) throw (VBadDataException&)
- : _doc(NULL)
- {
- if (contents.size()) parseContents(contents);
- }
- VXmlParser::~VXmlParser()
- {
- xmlFreeDoc(_doc);
- }
- void
- VXmlParser::parseContents(const string& contents) throw (VBadDataException&)
- {
- _doc = xmlParseMemory((char*)contents.c_str(), contents.size());
- if (!_doc)
- {
- throw VBadDataException("Failed to parse XML", __FILE__, __LINE__, 0);
- }
- }
- string
- VXmlParser::getAttribute(xmlNodePtr node, const string& attr)
- throw (VBadDataException&)
- {
- xmlChar *result = xmlGetProp(node, (xmlChar*)attr.c_str());
- if (result == NULL)
- {
- char buf[256];
- sprintf(buf, "Failed to get attribute (%s)",
- attr.c_str());
- throw VBadDataException(buf, __FILE__, __LINE__, 0);
- }
- else
- {
- string returnVal((char*)result);
- free(result);
- return returnVal;
- }
- }
- string
- VXmlParser::getContent(xmlNodePtr root, const string& tag)
- throw (VBadDataException&)
- {
- string retString;
- xmlNodePtr node = findNode(root, tag);
- if (node)
- {
- char* c = (char*)xmlNodeGetContent(node);
- if (c)
- {
- retString = c;
- free(c);
- }
- }
- if (!retString.size())
- {
- char buf[256];
- sprintf(buf, "Failed to get contents for tag (%s)",
- tag.c_str());
- throw VBadDataException(buf, __FILE__, __LINE__, 0);
- }
- return retString;
- }
- string
- VXmlParser::getContent(const string& tag, const string& subTag)
- throw (VBadDataException&)
- {
- string retString;
- if (!_doc)
- {
- throw VBadDataException("Failed to parse XML", __FILE__, __LINE__, 0);
- }
- xmlNodePtr node = findNode( xmlDocGetRootElement( _doc ), tag);
- if (node)
- {
- node = findNode(node, subTag);
- if (node)
- {
- char* c = (char*)xmlNodeGetContent(node);
- if (c)
- {
- retString = c;
- free(c);
- }
- }
- }
- if (!retString.size())
- {
- char buf[256];
- sprintf(buf, "Failed to get contents for tag (%s) and subtag (%s)",
- tag.c_str(), subTag.c_str());
- throw VBadDataException(buf, __FILE__, __LINE__, 0);
- }
- return retString;
- }
- void
- VXmlParser::getContent(const string& tag, const string& subTag, list < string > & retList)
- throw (VBadDataException&)
- {
- char* c = NULL;
- list < xmlNodePtr > nodeList;
- if (!_doc)
- {
- throw VBadDataException("Failed to parse XML", __FILE__, __LINE__, 0);
- }
- findNode( xmlDocGetRootElement( _doc ), tag, nodeList);
- for (list < xmlNodePtr > ::iterator itr = nodeList.begin();
- itr != nodeList.end(); itr++)
- {
- xmlNodePtr node = (*itr);
- if (subTag.size())
- {
- c = (char*)xmlNodeGetContent(findNode(node, subTag));
- }
- else
- {
- c = (char*)xmlNodeGetContent(node);
- }
- if (c)
- {
- retList.push_back(c);
- free(c);
- }
- }
- }
- void
- VXmlParser::getContent(xmlNodePtr root, const string& tag, const string& subTag, list < string > & retList)
- throw (VBadDataException&)
- {
- char* c = NULL;
- list < xmlNodePtr > nodeList;
- findNode( root, tag, nodeList);
- for (list < xmlNodePtr > ::iterator itr = nodeList.begin();
- itr != nodeList.end(); itr++)
- {
- xmlNodePtr node = (*itr);
- if (subTag.size())
- {
- c = (char*)xmlNodeGetContent(findNode(node, subTag));
- }
- else
- {
- c = (char*)xmlNodeGetContent(node);
- }
- if (c)
- {
- retList.push_back(c);
- free(c);
- }
- }
- }
- xmlNodePtr
- VXmlParser::findNode(xmlNodePtr root, const string& name) throw (VBadDataException&)
- {
- xmlNodePtr retNode = NULL;
- xmlNodePtr startNode = NULL;
- if (root == NULL)
- {
- if (!_doc)
- {
- throw VBadDataException("Failed to parse XML", __FILE__, __LINE__, 0);
- }
- startNode = xmlDocGetRootElement( _doc );
- }
- else startNode = root;
- assert(startNode);
- if (strcmp((char*)startNode->name, name.c_str()) == 0) return startNode ;
- xmlNodePtr node = startNode->children;
- while (node)
- {
- if (strcmp((char*)node->name, name.c_str()) == 0) return node;
- xmlNodePtr cNode = node->children;
- if (cNode)
- {
- retNode = findNode(node, name);
- if (retNode) break;
- }
- node = node->next;
- }
- return retNode;
- }
- void
- VXmlParser::findNode(xmlNodePtr root, const string& name, list < xmlNodePtr > & retList)
- throw (VBadDataException&)
- {
- xmlNodePtr startNode;
- if (root == NULL)
- {
- if (!_doc)
- {
- throw VBadDataException("Failed to parse XML", __FILE__, __LINE__, 0);
- }
- startNode = xmlDocGetRootElement( _doc );
- }
- else startNode = root;
- if (strcmp((char*)startNode->name, name.c_str()) == 0)
- {
- retList.push_back(startNode);
- }
- xmlNodePtr node = startNode->children;
- while (node)
- {
- if (node->type == XML_ELEMENT_NODE)
- {
- findNode(node, name, retList);
- }
- node = node->next;
- }
- }
- void
- VXmlParser::dump(FILE* file)
- {
- xmlDocDump(file, _doc);
- }
- void
- VXmlParser::dump()
- {
- xmlDocDump(NULL, _doc);
- }