1 /* $Id: filter_cql_to_rpn.cpp,v 1.3 2007-01-15 15:07:59 marc Exp $
2 Copyright (c) 2005-2006, Index Data.
4 See the LICENSE file for details
10 #include "package.hpp"
12 #include <boost/thread/mutex.hpp>
13 #include <boost/thread/condition.hpp>
14 #include <boost/thread/thread.hpp>
15 #include <boost/thread/xtime.hpp>
16 #include <boost/shared_ptr.hpp>
17 #include <boost/format.hpp>
20 #include "filter_cql_to_rpn.hpp"
25 #include <yaz/otherinfo.h>
26 #include <yaz/diagbib1.h>
28 #include <yazpp/z-query.h>
29 #include <yazpp/cql2rpn.h>
34 namespace mp = metaproxy_1;
35 namespace yf = metaproxy_1::filter;
37 namespace metaproxy_1 {
39 class CQLtoRPN::Impl {
40 //friend class CQLtoRPN;
44 void process(metaproxy_1::Package & package);
45 void configure(const xmlNode * ptr);
47 yazpp_1::Yaz_cql2rpn m_cql2rpn;
53 // define Pimpl wrapper forwarding to Impl
55 yf::CQLtoRPN::CQLtoRPN() : m_p(new Impl)
59 yf::CQLtoRPN::~CQLtoRPN()
60 { // must have a destructor because of boost::scoped_ptr
63 void yf::CQLtoRPN::configure(const xmlNode *xmlnode)
65 m_p->configure(xmlnode);
68 void yf::CQLtoRPN::process(mp::Package &package) const
70 m_p->process(package);
74 // define Implementation stuff
76 yf::CQLtoRPN::Impl::Impl()
80 yf::CQLtoRPN::Impl::~Impl()
84 void yf::CQLtoRPN::Impl::configure(const xmlNode *xmlnode)
88 <filter type="cql_rpn">
89 <conversion file="pqf.properties"/>
94 for (xmlnode = xmlnode->children; xmlnode; xmlnode = xmlnode->next)
96 if (xmlnode->type != XML_ELEMENT_NODE)
98 if (!strcmp((const char *) xmlnode->name, "conversion"))
100 const struct _xmlAttr *attr;
101 for (attr = xmlnode->properties; attr; attr = attr->next)
103 if (!strcmp((const char *) attr->name, "file"))
104 fname = mp::xml::get_text(attr);
106 throw mp::filter::FilterException(
107 "Bad attribute " + std::string((const char *)
113 throw mp::filter::FilterException("Bad element "
114 + std::string((const char *)
118 if (fname.length() == 0)
120 throw mp::filter::FilterException("Missing conversion spec for "
125 if (!m_cql2rpn.parse_spec_file(fname.c_str(), &error))
127 throw mp::filter::FilterException("Bad or missing CQL to RPN spec "
132 void yf::CQLtoRPN::Impl::process(mp::Package &package)
134 Z_GDU *gdu = package.request().get();
136 if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which ==
137 Z_APDU_searchRequest)
139 Z_APDU *apdu_req = gdu->u.z3950;
140 Z_SearchRequest *sr = gdu->u.z3950->u.searchRequest;
141 if (sr->query && sr->query->which == Z_Query_type_104 &&
142 sr->query->u.type_104->which == Z_External_CQL)
145 Z_RPNQuery *rpnquery = 0;
148 int r = m_cql2rpn.query_transform(sr->query->u.type_104->u.cql,
153 yaz_log(YLOG_LOG, "No CQL to RPN table");
155 odr.create_searchResponse(
157 YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
158 "Missing CQL to RPN spec");
159 package.response() = f_apdu;
164 int error_code = yaz_diag_srw_to_bib1(r);
166 yaz_log(YLOG_LOG, "CQL Conversion error %d", r);
168 odr.create_searchResponse(apdu_req, error_code, addinfo);
169 package.response() = f_apdu;
175 sr->query->which = Z_Query_type_1;
176 sr->query->u.type_1 = rpnquery;
177 package.request() = gdu;
185 // yf::CQLtoRPN::Rep::Rep()
190 // yf::CQLtoRPN::CQLtoRPN() : m_p(new CQLtoRPN::Rep)
194 // yf::CQLtoRPN::~CQLtoRPN()
199 // void yf::CQLtoRPN::process(mp::Package &package) const
201 // Z_GDU *gdu = package.request().get();
203 // if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which ==
204 // Z_APDU_searchRequest)
206 // Z_APDU *apdu_req = gdu->u.z3950;
207 // Z_SearchRequest *sr = gdu->u.z3950->u.searchRequest;
208 // if (sr->query && sr->query->which == Z_Query_type_104 &&
209 // sr->query->u.type_104->which == Z_External_CQL)
211 // char *addinfo = 0;
212 // Z_RPNQuery *rpnquery = 0;
215 // int r = m_p->cql2rpn.query_transform(sr->query->u.type_104->u.cql,
220 // yaz_log(YLOG_LOG, "No CQL to RPN table");
222 // odr.create_searchResponse(
224 // YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
225 // "Missing CQL to RPN spec");
226 // package.response() = f_apdu;
231 // int error_code = yaz_diag_srw_to_bib1(r);
233 // yaz_log(YLOG_LOG, "CQL Conversion error %d", r);
235 // odr.create_searchResponse(apdu_req, error_code, addinfo);
236 // package.response() = f_apdu;
240 // { // conversion OK
242 // sr->query->which = Z_Query_type_1;
243 // sr->query->u.type_1 = rpnquery;
244 // package.request() = gdu;
251 // void yf::CQLtoRPN::configure(const xmlNode *ptr)
255 // <filter type="cql_rpn">
256 // <conversion file="pqf.properties"/>
260 // std::string fname;
261 // for (ptr = ptr->children; ptr; ptr = ptr->next)
263 // if (ptr->type != XML_ELEMENT_NODE)
265 // if (!strcmp((const char *) ptr->name, "conversion"))
267 // const struct _xmlAttr *attr;
268 // for (attr = ptr->properties; attr; attr = attr->next)
270 // if (!strcmp((const char *) attr->name, "file"))
271 // fname = mp::xml::get_text(attr);
273 // throw mp::filter::FilterException(
274 // "Bad attribute " + std::string((const char *)
280 // throw mp::filter::FilterException("Bad element "
281 // + std::string((const char *)
285 // if (fname.length() == 0)
287 // throw mp::filter::FilterException("Missing conversion spec for "
288 // "filter cql_rpn");
292 // if (!m_p->cql2rpn.parse_spec_file(fname.c_str(), &error))
294 // throw mp::filter::FilterException("Bad or missing CQL to RPN spec "
302 static mp::filter::Base* filter_creator()
304 return new mp::filter::CQLtoRPN;
308 struct metaproxy_1_filter_struct metaproxy_1_filter_cql_to_rpn = {
318 * indent-tabs-mode: nil
319 * c-file-style: "stroustrup"
321 * vim: shiftwidth=4 tabstop=8 expandtab