X-Git-Url: http://sru.miketaylor.org.uk/?a=blobdiff_plain;f=src%2Frouter_flexml.cpp;h=2564aaea1b1e815750a306cc45f537ffd376aff8;hb=1e61b0aa05e2351e33d909f7503eaf936a2d9bb0;hp=914868e7b15a58465360704d8aa93ac325fe01b4;hpb=c859210e9c315c0f15c93fc6f65477a6c3e65d14;p=metaproxy-moved-to-github.git diff --git a/src/router_flexml.cpp b/src/router_flexml.cpp index 914868e..2564aae 100644 --- a/src/router_flexml.cpp +++ b/src/router_flexml.cpp @@ -1,12 +1,364 @@ -/* $Id: router_flexml.cpp,v 1.1 2005-10-26 14:12:00 marc Exp $ - Copyright (c) 2005, Index Data. +/* $Id: router_flexml.cpp,v 1.18 2006-06-10 14:29:12 adam Exp $ + Copyright (c) 2005-2006, Index Data. -%LICENSE% + See the LICENSE file for details */ - +#include "config.hpp" +#include "xmlutil.hpp" #include "router_flexml.hpp" +#include "factory_filter.hpp" +#include "factory_static.hpp" + +#include +#include +#include + +#include + +#include +#include +#include + +namespace mp = metaproxy_1; + +namespace metaproxy_1 { + class RouterFleXML::Route { + friend class RouterFleXML::Rep; + friend class RouterFleXML::Pos; + friend class RouterFleXML; + std::list > m_list; + }; + class RouterFleXML::Rep { + friend class RouterFleXML; + friend class RouterFleXML::Pos; + Rep(); + + void base(xmlDocPtr doc, mp::FactoryFilter &factory); + + typedef std::map > + IdFilterMap ; + + IdFilterMap m_id_filter_map; + + std::map m_routes; + + std::string m_start_route; + + std::string m_dl_path; + + void parse_xml_config_dom(xmlDocPtr doc); + + void parse_xml_filters(xmlDocPtr doc, const xmlNode *node); + void parse_xml_routes(xmlDocPtr doc, const xmlNode *node); + + bool m_xinclude; + private: + FactoryFilter *m_factory; // TODO shared_ptr + }; + + class RouterFleXML::Pos : public RoutePos { + public: + virtual const filter::Base *move(const char *route); + virtual RoutePos *clone(); + virtual ~Pos(); + mp::RouterFleXML::Rep *m_p; + + std::map::iterator m_route_it; + std::list >::iterator m_filter_it; + }; +} + +void mp::RouterFleXML::Rep::parse_xml_filters(xmlDocPtr doc, + const xmlNode *node) +{ + unsigned int filter_nr = 0; + while(node && mp::xml::check_element_yp2(node, "filter")) + { + filter_nr++; + + const struct _xmlAttr *attr; + std::string id_value; + std::string type_value; + for (attr = node->properties; attr; attr = attr->next) + { + std::string name = std::string((const char *) attr->name); + std::string value; + + if (attr->children && attr->children->type == XML_TEXT_NODE) + value = std::string((const char *)attr->children->content); + + if (name == "id") + id_value = value; + else if (name == "type") + type_value = value; + else + throw mp::XMLError("Only attribute id or type allowed" + " in filter element. Got " + name); + } + + if (!m_factory->exist(type_value)) + { + std::cout << "about to load " << type_value << ", path=" << + m_dl_path << "\n"; + m_factory->add_creator_dl(type_value, m_dl_path); + } + mp::filter::Base* filter_base = m_factory->create(type_value); + + filter_base->configure(node); + + if (m_id_filter_map.find(id_value) != m_id_filter_map.end()) + throw mp::XMLError("Filter " + id_value + " already defined"); + + m_id_filter_map[id_value] = + boost::shared_ptr(filter_base); + + node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE); + } +} + +void mp::RouterFleXML::Rep::parse_xml_routes(xmlDocPtr doc, + const xmlNode *node) +{ + mp::xml::check_element_yp2(node, "route"); + + unsigned int route_nr = 0; + while(mp::xml::is_element_yp2(node, "route")) + { + route_nr++; + + const struct _xmlAttr *attr; + std::string id_value; + for (attr = node->properties; attr; attr = attr->next) + { + std::string name = std::string((const char *) attr->name); + std::string value; + + if (attr->children && attr->children->type == XML_TEXT_NODE) + value = std::string((const char *)attr->children->content); + + if (name == "id") + id_value = value; + else + throw mp::XMLError("Only attribute 'id' allowed for" + " element 'route'." + " Got " + name); + } + + Route route; + + // process nodes in third level + const xmlNode* node3 = mp::xml::jump_to_children(node, XML_ELEMENT_NODE); + + unsigned int filter3_nr = 0; + while(node3 && mp::xml::check_element_yp2(node3, "filter")) + { + filter3_nr++; + + const struct _xmlAttr *attr; + std::string refid_value; + std::string type_value; + for (attr = node3->properties; attr; attr = attr->next) + { + std::string name = std::string((const char *) attr->name); + std::string value; + + if (attr->children && attr->children->type == XML_TEXT_NODE) + value = std::string((const char *)attr->children->content); + + if (name == "refid") + refid_value = value; + else if (name == "type") + type_value = value; + else + throw mp::XMLError("Only attribute 'refid' or 'type'" + " allowed for element 'filter'." + " Got " + name); + } + if (refid_value.length()) + { + std::map >::iterator it; + it = m_id_filter_map.find(refid_value); + if (it == m_id_filter_map.end()) + throw mp::XMLError("Unknown filter refid " + + refid_value); + else + route.m_list.push_back(it->second); + } + else if (type_value.length()) + { + if (!m_factory->exist(type_value)) + { + std::cout << "about to load " << type_value << ", path=" << + m_dl_path << "\n"; + m_factory->add_creator_dl(type_value, m_dl_path); + } + mp::filter::Base* filter_base = m_factory->create(type_value); + + filter_base->configure(node3); + + route.m_list.push_back( + boost::shared_ptr(filter_base)); + } + node3 = mp::xml::jump_to_next(node3, XML_ELEMENT_NODE); + + } + std::map::iterator it; + it = m_routes.find(id_value); + if (it != m_routes.end()) + throw mp::XMLError("Route id='" + id_value + + "' already exist"); + else + m_routes[id_value] = route; + node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE); + } +} + +void mp::RouterFleXML::Rep::parse_xml_config_dom(xmlDocPtr doc) +{ + if (!doc) + throw mp::XMLError("Empty XML Document"); + + const xmlNode* root = xmlDocGetRootElement(doc); + + mp::xml::check_element_yp2(root, "yp2"); + + const xmlNode* node = mp::xml::jump_to_children(root, XML_ELEMENT_NODE); + + if (mp::xml::is_element_yp2(node, "dlpath")) + { + m_dl_path = mp::xml::get_text(node); + node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE); + } + // process node which is expected first element node + if (mp::xml::check_element_yp2(node, "start")) + { + const struct _xmlAttr *attr; + std::string id_value; + for (attr = node->properties; attr; attr = attr->next) + { + std::string name = std::string((const char *) attr->name); + std::string value; + + if (attr->children && attr->children->type == XML_TEXT_NODE) + value = std::string((const char *)attr->children->content); + + if (name == "route") + m_start_route = value; + else + throw mp::XMLError("Only attribute start allowed" + " in element 'start'. Got " + name); + } + node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE); + } + // process node if given + if (mp::xml::is_element_yp2(node, "filters")) + { + parse_xml_filters(doc, mp::xml::jump_to_children(node, + XML_ELEMENT_NODE)); + + node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE); + } + // process node which is expected third element node + mp::xml::check_element_yp2(node, "routes"); + + parse_xml_routes(doc, mp::xml::jump_to_children(node, XML_ELEMENT_NODE)); + + node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE); + if (node) + { + throw mp::XMLError("Unexpected element " + + std::string((const char *)node->name)); + } +} + +mp::RouterFleXML::Rep::Rep() : m_xinclude(false) +{ +} + +void mp::RouterFleXML::Rep::base(xmlDocPtr doc, mp::FactoryFilter &factory) +{ + m_factory = &factory; + parse_xml_config_dom(doc); + m_start_route = "start"; +} + +mp::RouterFleXML::RouterFleXML(xmlDocPtr doc, mp::FactoryFilter &factory) + : m_p(new Rep) +{ + m_p->base(doc, factory); +} + +mp::RouterFleXML::RouterFleXML(std::string xmlconf, mp::FactoryFilter &factory) + : m_p(new Rep) +{ + LIBXML_TEST_VERSION; + + xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), + xmlconf.size()); + if (!doc) + throw mp::XMLError("xmlParseMemory failed"); + else + { + m_p->base(doc, factory); + xmlFreeDoc(doc); + } +} + +mp::RouterFleXML::~RouterFleXML() +{ +} + +const mp::filter::Base *mp::RouterFleXML::Pos::move(const char *route) +{ + if (route && *route) + { + std::cout << "move to " << route << "\n"; + m_route_it = m_p->m_routes.find(route); + if (m_route_it == m_p->m_routes.end()) + { + std::cout << "no such route " << route << "\n"; + throw mp::XMLError("bad route " + std::string(route)); + } + m_filter_it = m_route_it->second.m_list.begin(); + } + if (m_filter_it == m_route_it->second.m_list.end()) + return 0; + const mp::filter::Base *f = (*m_filter_it).get(); + m_filter_it++; + return f; +} + +mp::RoutePos *mp::RouterFleXML::createpos() const +{ + mp::RouterFleXML::Pos *p = new mp::RouterFleXML::Pos; + + p->m_route_it = m_p->m_routes.find(m_p->m_start_route); + if (p->m_route_it == m_p->m_routes.end()) + { + delete p; + return 0; + } + p->m_filter_it = p->m_route_it->second.m_list.begin(); + p->m_p = m_p.get(); + return p; +} + +mp::RoutePos *mp::RouterFleXML::Pos::clone() +{ + mp::RouterFleXML::Pos *p = new mp::RouterFleXML::Pos; + p->m_filter_it = m_filter_it; + p->m_route_it = m_route_it; + p->m_p = m_p; + return p; +} +mp::RouterFleXML::Pos::~Pos() +{ +} /*