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#ifndef _UPGRADE_HELPER_H_
#define _UPGRADE_HELPER_H_
// Helper classes and functions for upgrading options and model files.
#include "grt/common.h"
#include "wb_model_file.h"
using namespace wb;
using namespace grt;
struct xmlString
{
xmlChar *str;
xmlString(xmlChar *s)
: str(s)
{
}
~xmlString()
{
if (str)
xmlFree(str);
}
operator xmlChar*()
{
return str;
}
operator const char*()
{
return (const char*)str;
}
operator std::string()
{
return std::string((const char*)str);
}
operator bool()
{
return str != 0;
}
};
class XMLTraverser
{
private:
xmlDocPtr doc;
xmlNodePtr root;
std::map<std::string, xmlNodePtr> nodes_by_id;
void cache_object_nodes(xmlNodePtr node);
public:
XMLTraverser(xmlDocPtr adoc);
xmlNodePtr get_root();
static std::string node_prop(xmlNodePtr node, const char *prop);
bool delete_object_item(xmlNodePtr objnode, const char *name);
xmlNodePtr get_object(const char *id);
xmlNodePtr get_object_by_path(const char *path);
xmlNodePtr get_object_child_by_index(xmlNodePtr object, int index);
xmlNodePtr get_object_child(xmlNodePtr object, const char *key);
void set_object_child(xmlNodePtr object, const char *key, xmlNodePtr value);
void set_object_link(xmlNodePtr object, const char *key, xmlNodePtr target_object);
void set_object_link_literal(xmlNodePtr object, const char *key, const char *value, const char *struct_name);
std::vector<xmlNodePtr> scan_objects_of_type(const char *struct_name);
std::list<xmlNodePtr> scan_nodes_with_key(const char *name, xmlNodePtr parent= NULL);
double get_object_double_value(xmlNodePtr object, const char *key);
// return value of callback determines if that node should be traversed too
void traverse_subtree(const char *path, const boost::function<bool (xmlNodePtr, xmlNodePtr)> &callback);
};
xmlNodePtr create_grt_object_node(const char *id, const char *struct_type);
void set_grt_object_item(xmlNodePtr objnode, const char *name, xmlNodePtr item);
void set_grt_object_item_link(xmlNodePtr objnode, const char *name, const char *struct_type, const char *oid);
void set_grt_object_item_value(xmlNodePtr objnode, const char *name, const char *value);
void set_grt_object_item_value(xmlNodePtr objnode, const char *name, double value);
void find_replace_xml_attribute(xmlNodePtr root, const char *attr, const char *from, const char *to);
void find_replace_xml_attributes(xmlNodePtr root, const char **attr, const char **from, const char **to);
void rename_xml_grt_members(xmlNodePtr root, const char **klass, const char **name_from, const char **name_to);
void delete_xml_grt_members(xmlNodePtr root, const char **klass, const char **name);
inline xmlNodePtr first_xml_element(xmlNodePtr node)
{
while (node && node->type != XML_ELEMENT_NODE)
node = node->next;
return node;
}
#endif //_UPGRADE_HELPER_H_
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