-/* $Id: router_flexml.cpp,v 1.4 2005-12-08 15:10:34 adam Exp $
- Copyright (c) 2005, Index Data.
+/* This file is part of Metaproxy.
+ Copyright (C) Index Data
-%LICENSE%
- */
+Metaproxy is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
#include "config.hpp"
+#include <metaproxy/xmlutil.hpp>
+#include <string.h>
#include "router_flexml.hpp"
+#include "factory_filter.hpp"
+#include "factory_static.hpp"
#include <iostream>
#include <map>
#include <list>
+#include <yaz/log.h>
+#include <yaz/xml_include.h>
#include <boost/shared_ptr.hpp>
#include <libxml/parser.h>
#include <libxml/tree.h>
-namespace yp2 {
+namespace mp = metaproxy_1;
+
+namespace metaproxy_1 {
+ class RouterFleXML::Route {
+ friend class RouterFleXML::Rep;
+ friend class RouterFleXML::Pos;
+ friend class RouterFleXML;
+ std::list<boost::shared_ptr<const mp::filter::Base> > m_list;
+ };
class RouterFleXML::Rep {
friend class RouterFleXML;
+ friend class RouterFleXML::Pos;
Rep();
- typedef std::map<std::string, boost::shared_ptr<const yp2::filter::Base> >
- IdFilterMap ;
- typedef std::list<std::string> FilterIdList;
- typedef std::map<std::string, FilterIdList > IdRouteMap ;
+ void base(xmlDocPtr doc, mp::FactoryFilter &factory, bool test_only,
+ const char *file_include_path);
+
+ typedef std::map<std::string,
+ boost::shared_ptr<const mp::filter::Base > >
+ IdFilterMap ;
- std::string m_xmlconf;
- bool m_xinclude;
- xmlDoc * m_xmlconf_doc;
IdFilterMap m_id_filter_map;
- FilterIdList m_filter_id_list;
- IdRouteMap m_id_route_map;
- void xml_dom_error (const xmlNode* node, std::string msg);
-
- void create_filter(std::string type,
- const xmlDoc * xmldoc,
- std::string id = "");
-
- void parse_xml_config_dom();
-
- const xmlNode* jump_to(const xmlNode* node, int xml_node_type);
-
- const xmlNode* jump_to_next(const xmlNode* node, int xml_node_type);
-
- const xmlNode* jump_to_children(const xmlNode* node, int xml_node_type);
- void check_node_name(const xmlNode* node, std::string name);
+
+ std::map<std::string,RouterFleXML::Route> m_routes;
+
+ std::string m_start_route;
+
+ std::string m_dl_path;
+
+ void parse_xml_config_dom(xmlDocPtr doc, bool test_only,
+ const char *file_include_path);
+
+ void parse_xml_filters(xmlDocPtr doc, const xmlNode *node,
+ bool test_only, const char *file_include_path);
+ void parse_xml_filters1(xmlDocPtr doc, const xmlNode *node,
+ bool test_only, const char *file_include_path,
+ Route &route);
+ void parse_xml_routes(xmlDocPtr doc, const xmlNode *node,
+ bool test_only, const char *file_include_path);
+ void check_routes_in_filters(const xmlNode *n);
+
+ 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<std::string,
+ RouterFleXML::Route>::iterator m_route_it;
+ std::list<boost::shared_ptr <const mp::filter::Base> >::iterator m_filter_it;
};
}
-void yp2::RouterFleXML::Rep::check_node_name(const xmlNode* node, std::string name)
+void mp::RouterFleXML::Rep::parse_xml_filters(xmlDocPtr doc,
+ const xmlNode *node,
+ bool test_only,
+ const char *file_include_path)
{
- if (std::string((const char *)node->name)
- != name)
- xml_dom_error(node, "expected <" + name + ">, got ");
+ unsigned int filter_nr = 0;
+ while (node && mp::xml::check_element_mp(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 if (name == "base")
+ ;// Ignore XInclude base attribute.
+ else
+ throw mp::XMLError("Only attribute id or type allowed"
+ " in filter element. Got " + name);
+ }
+
+ if (!m_factory->exist(type_value))
+ {
+ yaz_log(YLOG_LOG, "Loading %s (dlpath %s)",
+ type_value.c_str(), m_dl_path.c_str());
+ m_factory->add_creator_dl(type_value, m_dl_path);
+ }
+ boost::shared_ptr<mp::filter::Base> fb(m_factory->create(type_value));
+
+ fb->configure(node, test_only, file_include_path);
+
+ 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] = fb;
+
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
+ }
}
-const xmlNode* yp2::RouterFleXML::Rep::jump_to_children(const xmlNode* node, int xml_node_type)
+void mp::RouterFleXML::Rep::parse_xml_filters1(xmlDocPtr doc,
+ const xmlNode *node,
+ bool test_only,
+ const char *file_include_path,
+ Route &route)
{
- node = node->children;
- for (; node && node->type != xml_node_type; node = node->next)
- ;
- return node;
+ while (node)
+ {
+ if (mp::xml::is_element_mp(node, "filters"))
+ {
+ const xmlNode* node1 =
+ mp::xml::jump_to_children(node, XML_ELEMENT_NODE);
+
+ parse_xml_filters1(doc, node1, test_only, file_include_path, route);
+ }
+ else if (mp::xml::check_element_mp(node, "filter"))
+ {
+ const struct _xmlAttr *attr;
+ std::string refid_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 == "refid")
+ refid_value = value;
+ else if (name == "type")
+ type_value = value;
+ else if (name == "base")
+ ;// Ignore XInclude base attribute.
+ else
+ throw mp::XMLError("Only attribute 'refid' or 'type'"
+ " allowed for element 'filter'."
+ " Got " + name);
+ }
+ if (refid_value.length())
+ {
+ std::map<std::string,
+ boost::shared_ptr<const mp::filter::Base > >::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))
+ {
+ yaz_log(YLOG_LOG, "Loading %s (dlpath %s)",
+ type_value.c_str(), m_dl_path.c_str());
+ m_factory->add_creator_dl(type_value, m_dl_path);
+ }
+ mp::filter::Base* filter_base = m_factory->create(type_value);
+
+ filter_base->configure(node, test_only, file_include_path);
+
+ route.m_list.push_back(
+ boost::shared_ptr<mp::filter::Base>(filter_base));
+ }
+
+ }
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
+ }
}
-
-const xmlNode* yp2::RouterFleXML::Rep::jump_to_next(const xmlNode* node, int xml_node_type)
+
+
+void mp::RouterFleXML::Rep::parse_xml_routes(xmlDocPtr doc,
+ const xmlNode *node,
+ bool test_only,
+ const char *file_include_path)
{
- node = node->next;
- for (; node && node->type != xml_node_type; node = node->next)
- ;
- return node;
+ mp::xml::check_element_mp(node, "route");
+
+ unsigned int route_nr = 0;
+ while (mp::xml::is_element_mp(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 if (name == "base")
+ ;// Ignore XInclude base attribute.
+ else
+ throw mp::XMLError("Only attribute 'id' allowed for"
+ " element 'route'."
+ " Got " + name);
+ }
+
+ Route route;
+
+ // process <filter> / <filters> nodes in third level
+ const xmlNode* node3 = mp::xml::jump_to_children(node, XML_ELEMENT_NODE);
+
+
+
+ parse_xml_filters1(doc, node3, test_only, file_include_path, route);
+
+ std::map<std::string,RouterFleXML::Route>::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);
+ }
}
-
-const xmlNode* yp2::RouterFleXML::Rep::jump_to(const xmlNode* node, int xml_node_type)
+
+void mp::RouterFleXML::Rep::check_routes_in_filters(const xmlNode *node)
{
- for (; node && node->type != xml_node_type; node = node->next)
- ;
- return node;
+ while (node)
+ {
+ if (mp::xml::is_element_mp(node, "filters"))
+ {
+ const xmlNode *n =
+ mp::xml::jump_to_children(node, XML_ELEMENT_NODE);
+ check_routes_in_filters(n);
+ }
+ else if (mp::xml::is_element_mp(node, "filter"))
+ {
+ const xmlNode *n =
+ mp::xml::jump_to_children(node, XML_ELEMENT_NODE);
+ while (n)
+ {
+ const struct _xmlAttr *attr;
+ // we assume thar that route attribute is only at one level
+ // below filter.. At least that works for multi and virt_db.
+ for (attr = n->properties; attr; attr = attr->next)
+ {
+ if (!strcmp((const char *) attr->name, "route"))
+ {
+ std::string value;
+
+ if (attr->children && attr->children->type == XML_TEXT_NODE)
+ value = std::string((const char *)attr->children->content);
+
+ std::map<std::string,RouterFleXML::Route>::iterator it;
+ it = m_routes.find(value);
+ if (it == m_routes.end())
+ {
+ throw mp::XMLError("Route '" + value + "' does not exist");
+ }
+ }
+ }
+ n = mp::xml::jump_to_next(n, XML_ELEMENT_NODE);
+ }
+ }
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
+ }
}
-void yp2::RouterFleXML::Rep::parse_xml_config_dom()
+void mp::RouterFleXML::Rep::parse_xml_config_dom(xmlDocPtr doc,
+ bool test_only,
+ const char *file_include_path)
{
- if (!m_xmlconf_doc){
- std::cerr << "XML configuration DOM pointer empty" << std::endl;
+ if (!doc)
+ throw mp::XMLError("Empty XML Document");
+
+ const xmlNode* root = xmlDocGetRootElement(doc);
+
+ if (file_include_path)
+ {
+ int r = yaz_xml_include_glob((xmlNode *) root, file_include_path,
+ YAZ_FILE_GLOB_FAIL_NOTEXIST);
+ if (r)
+ throw mp::XMLError("YAZ XML Include failed");
}
-
- const xmlNode* root = xmlDocGetRootElement(m_xmlconf_doc);
-
- if ((std::string((const char *) root->name) != "yp2")
- || (std::string((const char *)(root->ns->href))
- != "http://indexdata.dk/yp2/config/1")
- )
- xml_dom_error(root,
- "expected <yp2 xmlns=\"http://indexdata.dk/yp2/config/1\">, got ");
-
-
- for (const struct _xmlAttr *attr = root->properties; attr; attr = attr->next)
+
+ mp::xml::check_element_mp(root, "metaproxy");
+
+ const xmlNode* node = mp::xml::jump_to_children(root, XML_ELEMENT_NODE);
+
+ if (mp::xml::is_element_mp(node, "dlpath"))
{
- if (std::string((const char *)attr->name) == "xmlns")
- {
- const xmlNode *val = attr->children;
- if (std::string((const char *)val->content)
- != "http://indexdata.dk/yp2/config/1")
- xml_dom_error(root,
- "expected xmlns=\"http://indexdata.dk/yp2/config/1\", got ");
- }
+ m_dl_path = mp::xml::get_text(node);
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
}
- std::cout << "processing /yp2" << std::endl;
-
// process <start> node which is expected first element node
- const xmlNode* node = jump_to_children(root, XML_ELEMENT_NODE);
- //for (; node && node->type != XML_ELEMENT_NODE; node = node->next)
- // ;
-
- check_node_name(node, "start");
- std::cout << "processing /yp2/start" << std::endl;
-
- // process <filters> node which is expected second element node
- node = jump_to_next(node, XML_ELEMENT_NODE);
- check_node_name(node, "filters");
- std::cout << "processing /yp2/filters" << std::endl;
-
- // process <filter> nodes in next level
- const xmlNode* node2 = jump_to_children(node, XML_ELEMENT_NODE);
- check_node_name(node2, "filter");
-
- unsigned int filter_nr = 0;
- while(node2 && std::string((const char *)node2->name) == "filter"){
- filter_nr++;
- std::cout << "processing /yp2/filters/filter["
- << filter_nr << "]" << std::endl;
- node2 = jump_to_next(node2, XML_ELEMENT_NODE);
+ if (mp::xml::check_element_mp(node, "start"))
+ {
+ const struct _xmlAttr *attr;
+ 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 if (name == "base")
+ ;// Ignore XInclude base attribute.
+ else
+ throw mp::XMLError("Only attribute route allowed"
+ " in element 'start'. Got " + name);
+ }
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
+ }
+ // process <filters> node if given
+ if (mp::xml::is_element_mp(node, "filters"))
+ {
+ parse_xml_filters(doc, mp::xml::jump_to_children(node,
+ XML_ELEMENT_NODE),
+ test_only, file_include_path);
+
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
}
-
// process <routes> node which is expected third element node
- node = jump_to_next(node, XML_ELEMENT_NODE);
- check_node_name(node, "routes");
- std::cout << "processing /yp2/routes" << std::endl;
-
- // process <route> nodes in next level
- node2 = jump_to_children(node, XML_ELEMENT_NODE);
- check_node_name(node2, "route");
-
- unsigned int route_nr = 0;
- while(node2 && std::string((const char *)node2->name) == "route"){
- route_nr++;
- std::cout << "processing /yp2/routes/route["
- << route_nr << "]" << std::endl;
-
- // process <filter> nodes in third level
- const xmlNode* node3
- = jump_to_children(node2, XML_ELEMENT_NODE);
- check_node_name(node3, "filter");
-
- unsigned int filter3_nr = 0;
- while(node3 && std::string((const char *)node3->name) == "filter"){
- filter3_nr++;
-
- std::cout << "processing /yp2/routes/route["
- << route_nr << "]/filter["
- << filter3_nr << "]" << std::endl;
-
- node3 = jump_to_next(node3, XML_ELEMENT_NODE);
-
+ mp::xml::check_element_mp(node, "routes");
+
+ parse_xml_routes(doc, mp::xml::jump_to_children(node, XML_ELEMENT_NODE),
+ test_only, file_include_path);
+
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
+ if (node)
+ {
+ throw mp::XMLError("Unexpected element "
+ + std::string((const char *)node->name));
+ }
+
+ node = mp::xml::jump_to_children(root, XML_ELEMENT_NODE);
+ while (node)
+ {
+ if (mp::xml::is_element_mp(node, "filters"))
+ check_routes_in_filters(
+ mp::xml::jump_to_children(node,
+ XML_ELEMENT_NODE));
+ else if (mp::xml::is_element_mp(node, "routes"))
+ {
+ const xmlNode* n = mp::xml::jump_to_children(node,
+ XML_ELEMENT_NODE);
+ while (n)
+ {
+ if (mp::xml::is_element_mp(n, "route"))
+ {
+ check_routes_in_filters(
+ mp::xml::jump_to_children(n, XML_ELEMENT_NODE));
+
+ }
+ n = mp::xml::jump_to_next(n, XML_ELEMENT_NODE);
+ }
}
- node2 = jump_to_next(node2, XML_ELEMENT_NODE);
+ node = mp::xml::jump_to_next(node, XML_ELEMENT_NODE);
}
-}
+}
-void yp2::RouterFleXML::Rep::create_filter(std::string type,
- const xmlDoc * xmldoc,
- std::string id)
+mp::RouterFleXML::Rep::Rep() : m_xinclude(false)
{
- std::cout << "Created Filter type='" << type
- << "' id='" << id << "'" << std::endl;
}
-void yp2::RouterFleXML::Rep::xml_dom_error (const xmlNode* node, std::string msg)
+void mp::RouterFleXML::Rep::base(xmlDocPtr doc, mp::FactoryFilter &factory,
+ bool test_only, const char *file_include_path)
{
- std::cerr << "ERROR: " << msg << " <"
- << node->name << ">"
- << std::endl;
+ m_factory = &factory;
+ parse_xml_config_dom(doc, test_only, file_include_path);
+ m_start_route = "start";
}
-
-yp2::RouterFleXML::Rep::Rep() :
- m_xmlconf(""), m_xinclude(false), m_xmlconf_doc(0)
+mp::RouterFleXML::RouterFleXML(xmlDocPtr doc, mp::FactoryFilter &factory,
+ bool test_only, const char *file_include_path)
+ : m_p(new Rep)
{
+ m_p->base(doc, factory, test_only, file_include_path);
}
-yp2::RouterFleXML::RouterFleXML(std::string xmlconf)
+mp::RouterFleXML::RouterFleXML(std::string xmlconf, mp::FactoryFilter &factory,
+ bool test_only)
: m_p(new Rep)
-{
- LIBXML_TEST_VERSION;
-
- m_p->m_xmlconf = xmlconf;
-
- m_p->m_xmlconf_doc = xmlParseMemory(m_p->m_xmlconf.c_str(),
- m_p->m_xmlconf.size());
- m_p->parse_xml_config_dom();
+{
+ xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(),
+ xmlconf.size());
+ if (!doc)
+ throw mp::XMLError("xmlParseMemory failed");
+ else
+ {
+ m_p->base(doc, factory, test_only, 0);
+ xmlFreeDoc(doc);
+ }
}
-yp2::RouterFleXML::~RouterFleXML()
+mp::RouterFleXML::~RouterFleXML()
{
- xmlFreeDoc(m_p->m_xmlconf_doc);
}
-const yp2::filter::Base *
-yp2::RouterFleXML::move(const yp2::filter::Base *filter,
- const yp2::Package *package) const
+const mp::filter::Base *mp::RouterFleXML::Pos::move(const char *route)
{
- return 0;
+ 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()
+{
+}
+
+
+void mp::RouterFleXML::start()
+{
+ std::map<std::string,RouterFleXML::Route>::iterator route_it;
+
+ route_it = m_p->m_routes.begin();
+ while (route_it != m_p->m_routes.end())
+ {
+ RouterFleXML::Route route = route_it->second;
+
+ std::list<boost::shared_ptr<const mp::filter::Base> >::iterator it;
+
+ for (it = route.m_list.begin(); it != route.m_list.end(); it++)
+ (*it)->start();
+ route_it++;
+ }
+}
+
+void mp::RouterFleXML::stop(int signo)
+{
+ std::map<std::string,RouterFleXML::Route>::iterator route_it;
+
+ route_it = m_p->m_routes.begin();
+ while (route_it != m_p->m_routes.end())
+ {
+ RouterFleXML::Route route = route_it->second;
+
+ std::list<boost::shared_ptr<const mp::filter::Base> >::iterator it;
+
+ for (it = route.m_list.begin(); it != route.m_list.end(); it++)
+ (*it)->stop(signo);
+ route_it++;
+ }
+}
+
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
- * c-file-style: "stroustrup"
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
+
projects / metaproxy-moved-to-github.git / blobdiff