-/* $Id: ex_libxml2_conf.cpp,v 1.1 2005-10-24 13:31:36 marc Exp $
+/* $Id: ex_libxml2_conf.cpp,v 1.4 2005-10-26 10:20:15 marc Exp $
Copyright (c) 2005, Index Data.
%LICENSE%
#include <boost/program_options.hpp>
namespace po = boost::program_options;
+#include <libxml/xmlreader.h>
-class Config
+class Configuration
{
- public:
- Config(int argc, char **argv)
- {
-
- po::options_description generic("Generic options");
- generic.add_options()
- ("help,h", "produce help message")
- ("version,v", "version number")
- ;
-
- po::options_description config("Config options");
+public:
+ Configuration(int argc, char **argv)
+ {
+ m_config = "";
+ m_duration = 0;
+ m_xinclude = false;
+ m_xml_conf_doc = 0;
+
+ parse_command_line(argc, argv);
+ parse_xml_config();
+ }
+
+public:
+ std::string config()
+ {
+ return m_config;
+ }
+ int duration()
+ {
+ return m_duration;
+ }
+
+
+private:
+ std::string m_config;
+ int m_duration;
+ bool m_xinclude;
+ xmlDoc * m_xml_conf_doc;
+
+
+ void parse_command_line(int argc, char **argv)
+ {
+ po::options_description generic("Generic options");
+ generic.add_options()
+ ("help,h", "produce help message")
+ ("version,v", "version number")
+ ("xinclude,x", "allow Xinclude on XML config files")
+ ;
+
+ po::options_description config("Configuration options");
config.add_options()
- ("config,c", po::value<std::string>(&m_config)->default_value("ex_libxml2_conf.xml"),
+ ("config,c", po::value<std::string>(&m_config)->default_value("../etc/config1.xml"),
"config XML file path (string)")
- ("duration,d", po::value<int>(&m_duration)->default_value(3),
+ ("duration,d", po::value<int>(&m_duration)->default_value(0),
"number of seconds for server to exist (int)")
//("commands", po::value< std::vector<std::string> >(),
// "listener ports (string)")
std::cout << "--version" << std::endl;
std::exit(0);
}
+
+ if (vm.count("xinclude")) {
+ std::cout << "--xinclude" << std::endl;
+ m_xinclude = true;
+ }
if (vm.count("duration")) {
std::cout << "--duration "
// std::cout << "port " << i << " " << ports[i] << std::endl;
//}
- }
-
- public:
- std::string config()
- {
- return m_config;
- }
- int duration()
- {
- return m_duration;
- }
-
-
- private:
- std::string m_config;
- int m_duration;
- //xmlDoc * m_conf_doc;
+
+ }
+
+ void parse_xml_config() {
+ LIBXML_TEST_VERSION
+
+ xmlTextReader* reader;
+ //reader->SetParserProp(libxml2.PARSER_SUBST_ENTITIES,1);
+ int ret;
+ reader = xmlReaderForFile(m_config.c_str(), NULL, 0);
- bool load_xml_doc()
- {
- return true;
- }
-
+ if (reader == NULL) {
+ std::cerr << "failed to open XML config file "
+ << m_config << std::endl;
+ std::exit(1);
+ }
+
+
+ // root element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("yp2") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "root element must be named <yp2>");
+
+ std::cout << "<" << xmlTextReaderConstName(reader);
+
+ //if (xmlTextReaderHasAttributes(reader))
+ //if ((!xmlTextReaderMoveToAttributeNs(reader, NULL,
+ // (const xmlChar*)"http://indexdata.dk/yp2/config/1" )))
+ if ((!xmlTextReaderMoveToFirstAttribute(reader))
+ || (! xmlTextReaderIsNamespaceDecl(reader))
+ || (std::string("http://indexdata.dk/yp2/config/1")
+ != (const char*)xmlTextReaderConstValue(reader)))
+ xml_error(reader, "expected root element <yp2> in namespace "
+ "'http://indexdata.dk/yp2/config/1'");
+
+ std::cout << " " << xmlTextReaderConstName(reader) << "=\""
+ << xmlTextReaderConstValue(reader) << "\">"
+ //<< xmlTextReaderIsNamespaceDecl(reader)
+ << std::endl;
+
+
+ // start element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("start") != (const char*)xmlTextReaderConstName(reader)
+ || !xmlTextReaderMoveToFirstAttribute(reader)
+ || std::string("route") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "start element <start route=\"route_id\"/> expected");
+
+ std::cout << "<start " << xmlTextReaderConstName(reader) << "=\""
+ << xmlTextReaderConstValue(reader) << "\"/>" << std::endl;
+ //<< xmlTextReaderGetAttribute(reader, (const xmlChar *)"route")
+
+
+ // filters element processing
+ xml_progress_flat_to_element(reader);
+ if (std::string("filters") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "filters element <filters> expected");
+
+ std::cout << "<filters>" << std::endl;
+
+
+ // filter element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("filter") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "filter element <filter id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+
+ while (std::string("filter") == (const char*)xmlTextReaderConstName(reader)){
+ std::string filter_id;
+ std::string filter_type;
+ if (!xmlTextReaderMoveToFirstAttribute(reader)
+ || std::string("id") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "filter element <filter id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+ filter_id = (const char*)xmlTextReaderConstValue(reader);
+ if (!xmlTextReaderMoveToNextAttribute(reader)
+ || std::string("type") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "filter element <filter id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+ filter_type = (const char*)xmlTextReaderConstValue(reader);
+ std::cout << "<filter id=\"" << filter_id
+ << "\" type=\"" << filter_type << "\"/>"
+ << std::endl;
+ xml_progress_flat_to_element(reader);
+ }
+
+ std::cout << "</filters>" << std::endl;
+
+
+ // routes element processing
+ // xml_progress_flat_to_element(reader);
+ if (std::string("routes") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "routes element <routes> expected");
+
+ std::cout << "<routes>" << std::endl;
+ // route element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("route") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "route element <route id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+ while (std::string("route") == (const char*)xmlTextReaderConstName(reader)){
+ std::string route_id;
+ if (!xmlTextReaderMoveToFirstAttribute(reader)
+ || std::string("id") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "route element <route id=\"some_id\"/> expected");
+ route_id = (const char*)xmlTextReaderConstValue(reader);
+
+
+ std::cout << "<route id=\"" << route_id << "\">" << std::endl;
+ std::cout << "</route>" << std::endl;
+ xml_progress_flat_to_element(reader);
+ }
+
+ std::cout << "</routes>" << std::endl;
+
+ std::cout << "</yp2>" << std::endl;
+
+
+ xml_debug_print(reader);
+
+
+ // freeing C xml reader libs
+ xmlFreeTextReader(reader);
+ if (ret != 0) {
+ std::cerr << "Parsing failed of XML config file "
+ << m_config << std::endl;
+ std::exit(1);
+ }
+ }
+
+ void xml_error ( xmlTextReader* reader, std::string msg)
+ {
+ std::cerr << "ERROR: " << msg << " "
+ << xmlTextReaderGetParserLineNumber(reader) << ":"
+ << xmlTextReaderGetParserColumnNumber(reader) << " "
+ << xmlTextReaderConstName(reader) << " "
+ << xmlTextReaderDepth(reader) << " "
+ << xmlTextReaderNodeType(reader) << std::endl;
+ }
+
+ void xml_debug_print ( xmlTextReader* reader)
+ {
+ // processing all other elements
+ //while (xmlTextReaderMoveToElement(reader)) // reads next element ??
+ //while (xmlTextReaderNext(reader)) //does not descend, keeps level
+ while (xmlTextReaderRead(reader)) // descends into all subtree nodes
+ std::cout << xmlTextReaderGetParserLineNumber(reader) << ":"
+ << xmlTextReaderGetParserColumnNumber(reader) << " "
+ << xmlTextReaderDepth(reader) << " "
+ << xmlTextReaderNodeType(reader) << " "
+ << "ConstName " << xmlTextReaderConstName(reader) << " "
+ //<< "Prefix " << xmlTextReaderPrefix(reader) << "\n"
+ //<< "XmlLang " << xmlTextReaderXmlLang(reader) << "\n"
+ //<< "NamespaceUri " << xmlTextReaderNamespaceUri(reader) << "\n"
+ //<< "BaseUri" << xmlTextReaderBaseUri(reader) << "\n"
+ << std::endl;
+ }
+
+ bool xml_progress_deep_to_element(xmlTextReader* reader)
+ {
+ bool ret = false;
+ while(xmlTextReaderRead(reader)
+ && xmlTextReaderNodeType(reader) != XML_ELEMENT_NODE
+ && !( xmlTextReaderNodeType(reader) == XML_READER_TYPE_END_ELEMENT
+ && 0 == xmlTextReaderDepth(reader))
+ )
+ ret = true;
+ return ret;
+ }
+
+ bool xml_progress_flat_to_element(xmlTextReader* reader)
+ {
+ bool ret = false;
+
+ while(xmlTextReaderNext(reader)
+ && xmlTextReaderNodeType(reader) != XML_ELEMENT_NODE
+ && !( xmlTextReaderNodeType(reader) == XML_READER_TYPE_END_ELEMENT
+ && 0 == xmlTextReaderDepth(reader))
+ ) {
+ ret = true;
+ }
+ return ret;
+ }
+
+
};
//try
//{
- Config conf(argc, argv);
+
+ Configuration conf(argc, argv);
std::cout << "config " << conf.config() << std::endl;
std::cout << "duration " << conf.duration() << std::endl;
+
+
// }
//catch ( ... ) {
//std::cerr << "Unknown Exception" << std::endl;
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