1 /* $Id: filter_z3950_client.cpp,v 1.5 2005-10-25 21:32:01 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::Pimpl {
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() {
148 m_p = new yf::Z3950Client::Pimpl;
151 yf::Z3950Client::~Z3950Client() {
155 yf::Z3950Client::Assoc *yf::Z3950Client::Pimpl::get_assoc(Package &package)
157 // only one thread messes with the clients list at a time
158 boost::mutex::scoped_lock lock(m_mutex);
160 std::map<yp2::Session,yf::Z3950Client::Assoc *>::iterator it;
162 it = m_clients.find(package.session());
163 if (it != m_clients.end())
166 // only deal with Z39.50
167 Z_GDU *gdu = package.request().get();
169 if (!gdu || gdu->which != Z_GDU_Z3950)
174 Z_APDU *apdu = gdu->u.z3950;
176 // new Z39.50 session ..
178 // check that it is init. If not, close
179 if (apdu->which != Z_APDU_initRequest)
181 ODR odr = odr_createmem(ODR_ENCODE);
182 Z_APDU *apdu = zget_APDU(odr, Z_APDU_close);
184 *apdu->u.close->closeReason = Z_Close_protocolError;
185 apdu->u.close->diagnosticInformation =
186 odr_strdup(odr, "no init request for session");
188 package.response() = apdu;
190 package.session().close();
194 // check virtual host
196 yaz_oi_get_string_oidval(&apdu->u.initRequest->otherInfo,
200 ODR odr = odr_createmem(ODR_ENCODE);
201 Z_APDU *apdu = zget_APDU(odr, Z_APDU_initResponse);
203 apdu->u.initResponse->userInformationField =
204 zget_init_diagnostics(odr,
205 YAZ_BIB1_INIT_NEGOTIATION_OPTION_REQUIRED,
206 "Virtual host not given");
207 package.response() = apdu;
209 package.session().close();
214 yazpp_1::SocketManager *sm = new yazpp_1::SocketManager;
215 yazpp_1::PDU_Assoc *pdu_as = new yazpp_1::PDU_Assoc(sm);
216 yf::Z3950Client::Assoc *as = new yf::Z3950Client::Assoc(sm, pdu_as, vhost);
217 m_clients[package.session()] = as;
221 void yf::Z3950Client::Pimpl::send_and_receive(Package &package,
222 yf::Z3950Client::Assoc *c)
224 Z_GDU *gdu = package.request().get();
226 if (!gdu || gdu->which != Z_GDU_Z3950)
231 c->m_package = &package;
235 c->client(c->m_host.c_str());
237 while (c->m_waiting && c->m_socket_manager->processEvent() > 0)
248 // relay the package ..
250 c->send_GDU(gdu, &len);
252 while (c->m_waiting && c->m_socket_manager->processEvent() > 0)
256 void yf::Z3950Client::Pimpl::release_assoc(Package &package,
257 yf::Z3950Client::Assoc *c)
259 if (package.session().is_closed())
261 boost::mutex::scoped_lock lock(m_mutex);
262 std::map<yp2::Session,yf::Z3950Client::Assoc *>::iterator it;
264 it = m_clients.find(package.session());
265 if (it != m_clients.end())
267 // the Z_Assoc and PDU_Assoc must be destroyed before
268 // the socket manager.. so pull that out.. first..
269 yazpp_1::SocketManager *s = it->second->m_socket_manager;
270 delete it->second; // destroy Z_Assoc
271 delete s; // then manager
277 void yf::Z3950Client::process(Package &package) const
279 yf::Z3950Client::Assoc *c = m_p->get_assoc(package);
282 m_p->send_and_receive(package, c);
283 m_p->release_assoc(package, c);
291 * indent-tabs-mode: nil
292 * c-file-style: "stroustrup"
294 * vim: shiftwidth=4 tabstop=8 expandtab