1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #ifndef CONFIG_XMLREADER_H_
22 #define CONFIG_XMLREADER_H_
24 #include <Config_def.h>
30 //>> Forward declaration of xmlNodePtr.
31 typedef struct _xmlNode xmlNode;
32 typedef xmlNode *xmlNodePtr;
36 //>> Forward declaration of xmlDocPtr.
37 typedef struct _xmlDoc xmlDoc;
38 typedef xmlDoc *xmlDocPtr;
43 * \class Config_XMLReader
45 * \brief Base class for all libxml readers. Provides high-level API
46 * for all xml operations.
48 class Config_XMLReader
53 * \param theXmlFile - full path to the xml file which will be processed by the reader
55 CONFIG_EXPORT Config_XMLReader(const std::string& theXmlFile);
56 CONFIG_EXPORT virtual ~Config_XMLReader();
58 * Returns a path to resource files (created from ROOT_DIR environment variable)
59 * \return string value
61 CONFIG_EXPORT static std::string resourcesConfigFile();
63 * Returns a path to the plugins.xml file (created from ROOT_DIR environment variable)
64 * \return string value
66 CONFIG_EXPORT static std::string pluginConfigFile();
68 * Read all nodes in associated xml file,
69 * recursively if processChildren(xmlNode) is true for the xmlNode.
70 * For each read node the processNode will be called.
72 CONFIG_EXPORT void readAll();
74 * Returns xmlNodePtr to the root of reader's document or NULL if not found.
75 * If the path to the document to read is empty, uses myDocumentPath.
77 CONFIG_EXPORT xmlNodePtr findRoot(const std::string theDocumentPath = "");
79 CONFIG_EXPORT const char* encoding() const;
81 /// Checks all possible paths to configuration file given
82 /// Uses theFindIndex if several solutions can be found (this is the number of solution to find)
83 CONFIG_EXPORT static std::string
84 findConfigFile(const std::string theFileName, const int theFindIndex = 0);
88 * \brief Allows to customize reader's behavior for a node. Virtual.
89 * The default implementation process "source" and "validator" nodes.
91 virtual void processNode(xmlNodePtr aNode);
94 * This method gives an ability to finalize processing of a node,
95 * when reader is about to leave the node (node and all it's children are processed)
97 virtual void cleanup(xmlNodePtr aNode);
99 * \brief Defines which nodes should be processed recursively. Virtual.
100 * The default impl is to read all nodes.
102 virtual bool processChildren(xmlNodePtr aNode);
104 * Calls processNode() for each child (for some - recursively)
108 void readRecursively(xmlNodePtr theParent);
110 * \brief void* -> xmlNodePtr
112 xmlNodePtr node(void* theNode);
113 /// Gets xml node name
114 std::string getNodeName(xmlNodePtr theNode);
115 /// Stores an attribute in internal map for later use.
116 /// Key is "Node_Name:Node_Attribute" and value is getProperty(theNodeAttribute)
117 void storeAttribute(xmlNodePtr theNode, const char* theNodeAttribute, bool doClean = false);
118 /// Restores an attribute from internal map.
119 std::string restoreAttribute(xmlNodePtr theNode, const char* theNodeAttribute);
120 /// Restores an attribute from internal map.
121 std::string restoreAttribute(const char* theNodeName, const char* theNodeAttribute);
122 /// Cleanups attribute from cache
123 bool cleanupAttribute(xmlNodePtr theNode, const char* theNodeAttribute);
124 /// Cleanups attribute from cache
125 bool cleanupAttribute(const char* theNodeName, const char* theNodeAttribute);
128 std::string myDocumentPath; ///< Path to the xml document
129 xmlDocPtr myXmlDoc; ///< Root of the xml document
130 std::string myRootFileName; ///< name of the root file
131 /// A map to store all parent's attributes.
132 /// The key has from "Node_Name:Node_Attribute"
133 std::map<std::string, std::string> myCachedAttributes;
136 #endif /* CONFIG_XMLREADER_H_ */