1 /* $Id: filter_z3950_client.cpp,v 1.6 2005-10-29 15:54:29 adam Exp $
2 Copyright (c) 2005, Index Data.
12 #include "package.hpp"
14 #include <boost/thread/mutex.hpp>
16 #include "filter_z3950_client.hpp"
20 #include <yaz/otherinfo.h>
21 #include <yaz/diagbib1.h>
23 #include <yaz++/socket-manager.h>
24 #include <yaz++/pdu-assoc.h>
25 #include <yaz++/z-assoc.h>
29 namespace yf = yp2::filter;
33 class Z3950Client::Assoc : public yazpp_1::Z_Assoc{
36 Assoc(yazpp_1::SocketManager *socket_manager,
37 yazpp_1::IPDU_Observable *PDU_Observable,
43 void recv_GDU(Z_GDU *gdu, int len);
44 yazpp_1::IPDU_Observer* sessionNotify(
45 yazpp_1::IPDU_Observable *the_PDU_Observable,
48 // yp2::Session m_session_id;
49 yazpp_1::SocketManager *m_socket_manager;
50 yazpp_1::IPDU_Observable *m_PDU_Observable;
57 class Z3950Client::Rep {
60 std::map<yp2::Session,Z3950Client::Assoc *> m_clients;
61 Z3950Client::Assoc *get_assoc(Package &package);
62 void send_and_receive(Package &package,
63 yf::Z3950Client::Assoc *c);
64 void release_assoc(Package &package,
65 yf::Z3950Client::Assoc *c);
71 yf::Z3950Client::Assoc::Assoc(yazpp_1::SocketManager *socket_manager,
72 yazpp_1::IPDU_Observable *PDU_Observable,
74 : Z_Assoc(PDU_Observable),
75 m_socket_manager(socket_manager), m_PDU_Observable(PDU_Observable),
76 m_package(0), m_waiting(false), m_connected(false),
79 // std::cout << "create assoc " << this << "\n";
82 yf::Z3950Client::Assoc::~Assoc()
84 // std::cout << "destroy assoc " << this << "\n";
87 void yf::Z3950Client::Assoc::connectNotify()
94 void yf::Z3950Client::Assoc::failNotify()
98 ODR odr = odr_createmem(ODR_ENCODE);
100 Z_APDU *apdu = zget_APDU(odr, Z_APDU_close);
102 *apdu->u.close->closeReason = Z_Close_peerAbort;
106 m_package->response() = apdu;
107 m_package->session().close();
113 void yf::Z3950Client::Assoc::timeoutNotify()
117 ODR odr = odr_createmem(ODR_ENCODE);
119 Z_APDU *apdu = zget_APDU(odr, Z_APDU_close);
121 *apdu->u.close->closeReason = Z_Close_lackOfActivity;
125 m_package->response() = apdu;
126 m_package->session().close();
131 void yf::Z3950Client::Assoc::recv_GDU(Z_GDU *gdu, int len)
136 m_package->response() = gdu;
139 yazpp_1::IPDU_Observer *yf::Z3950Client::Assoc::sessionNotify(
140 yazpp_1::IPDU_Observable *the_PDU_Observable,
147 yf::Z3950Client::Z3950Client() : m_p(new yf::Z3950Client::Rep)
151 yf::Z3950Client::~Z3950Client() {
154 yf::Z3950Client::Assoc *yf::Z3950Client::Rep::get_assoc(Package &package)
156 // only one thread messes with the clients list at a time
157 boost::mutex::scoped_lock lock(m_mutex);
159 std::map<yp2::Session,yf::Z3950Client::Assoc *>::iterator it;
161 it = m_clients.find(package.session());
162 if (it != m_clients.end())
165 // only deal with Z39.50
166 Z_GDU *gdu = package.request().get();
168 if (!gdu || gdu->which != Z_GDU_Z3950)
173 Z_APDU *apdu = gdu->u.z3950;
175 // new Z39.50 session ..
177 // check that it is init. If not, close
178 if (apdu->which != Z_APDU_initRequest)
180 ODR odr = odr_createmem(ODR_ENCODE);
181 Z_APDU *apdu = zget_APDU(odr, Z_APDU_close);
183 *apdu->u.close->closeReason = Z_Close_protocolError;
184 apdu->u.close->diagnosticInformation =
185 odr_strdup(odr, "no init request for session");
187 package.response() = apdu;
189 package.session().close();
193 // check virtual host
195 yaz_oi_get_string_oidval(&apdu->u.initRequest->otherInfo,
199 ODR odr = odr_createmem(ODR_ENCODE);
200 Z_APDU *apdu = zget_APDU(odr, Z_APDU_initResponse);
202 apdu->u.initResponse->userInformationField =
203 zget_init_diagnostics(odr,
204 YAZ_BIB1_INIT_NEGOTIATION_OPTION_REQUIRED,
205 "Virtual host not given");
206 package.response() = apdu;
208 package.session().close();
213 yazpp_1::SocketManager *sm = new yazpp_1::SocketManager;
214 yazpp_1::PDU_Assoc *pdu_as = new yazpp_1::PDU_Assoc(sm);
215 yf::Z3950Client::Assoc *as = new yf::Z3950Client::Assoc(sm, pdu_as, vhost);
216 m_clients[package.session()] = as;
220 void yf::Z3950Client::Rep::send_and_receive(Package &package,
221 yf::Z3950Client::Assoc *c)
223 Z_GDU *gdu = package.request().get();
225 if (!gdu || gdu->which != Z_GDU_Z3950)
230 c->m_package = &package;
234 c->client(c->m_host.c_str());
236 while (c->m_waiting && c->m_socket_manager->processEvent() > 0)
247 // relay the package ..
249 c->send_GDU(gdu, &len);
251 while (c->m_waiting && c->m_socket_manager->processEvent() > 0)
255 void yf::Z3950Client::Rep::release_assoc(Package &package,
256 yf::Z3950Client::Assoc *c)
258 if (package.session().is_closed())
260 boost::mutex::scoped_lock lock(m_mutex);
261 std::map<yp2::Session,yf::Z3950Client::Assoc *>::iterator it;
263 it = m_clients.find(package.session());
264 if (it != m_clients.end())
266 // the Z_Assoc and PDU_Assoc must be destroyed before
267 // the socket manager.. so pull that out.. first..
268 yazpp_1::SocketManager *s = it->second->m_socket_manager;
269 delete it->second; // destroy Z_Assoc
270 delete s; // then manager
276 void yf::Z3950Client::process(Package &package) const
278 yf::Z3950Client::Assoc *c = m_p->get_assoc(package);
281 m_p->send_and_receive(package, c);
282 m_p->release_assoc(package, c);
290 * indent-tabs-mode: nil
291 * c-file-style: "stroustrup"
293 * vim: shiftwidth=4 tabstop=8 expandtab