1 /* $Id: filter_z3950_client.cpp,v 1.4 2005-10-25 16:01:14 adam Exp $
2 Copyright (c) 2005, Index Data.
11 #include "package.hpp"
13 #include <boost/thread/mutex.hpp>
15 #include "filter_z3950_client.hpp"
19 #include <yaz/otherinfo.h>
20 #include <yaz/diagbib1.h>
22 #include <yaz++/socket-manager.h>
23 #include <yaz++/pdu-assoc.h>
24 #include <yaz++/z-assoc.h>
28 namespace yf = yp2::filter;
32 class Z3950Client::Assoc : public yazpp_1::Z_Assoc{
35 Assoc(yp2::Session id, yazpp_1::SocketManager *socket_manager,
36 yazpp_1::IPDU_Observable *PDU_Observable,
42 void recv_GDU(Z_GDU *gdu, int len);
43 yazpp_1::IPDU_Observer* sessionNotify(
44 yazpp_1::IPDU_Observable *the_PDU_Observable,
47 yp2::Session m_session_id;
48 yazpp_1::SocketManager *m_socket_manager;
49 yazpp_1::IPDU_Observable *m_PDU_Observable;
56 class Z3950Client::Pimpl {
59 std::list<Z3950Client::Assoc *> m_clients;
60 Z3950Client::Assoc *get_assoc(Package &package);
61 void send_and_receive(Package &package,
62 yf::Z3950Client::Assoc *c);
63 void release_assoc(Package &package,
64 yf::Z3950Client::Assoc *c);
70 yf::Z3950Client::Assoc::Assoc(yp2::Session id,
71 yazpp_1::SocketManager *socket_manager,
72 yazpp_1::IPDU_Observable *PDU_Observable,
74 : Z_Assoc(PDU_Observable), m_session_id(id),
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::list<yf::Z3950Client::Assoc *>::iterator it;
162 for (it = m_clients.begin(); it != m_clients.end(); it++)
164 if ((*it)->m_session_id == package.session())
167 if (it != m_clients.end())
170 // only deal with Z39.50
171 Z_GDU *gdu = package.request().get();
173 if (!gdu || gdu->which != Z_GDU_Z3950)
178 Z_APDU *apdu = gdu->u.z3950;
180 // new Z39.50 session ..
182 // check that it is init. If not, close
183 if (apdu->which != Z_APDU_initRequest)
185 ODR odr = odr_createmem(ODR_ENCODE);
186 Z_APDU *apdu = zget_APDU(odr, Z_APDU_close);
188 *apdu->u.close->closeReason = Z_Close_protocolError;
189 apdu->u.close->diagnosticInformation =
190 odr_strdup(odr, "no init request for session");
192 package.response() = apdu;
194 package.session().close();
198 // check virtual host
200 yaz_oi_get_string_oidval(&apdu->u.initRequest->otherInfo,
204 ODR odr = odr_createmem(ODR_ENCODE);
205 Z_APDU *apdu = zget_APDU(odr, Z_APDU_initResponse);
207 apdu->u.initResponse->userInformationField =
208 zget_init_diagnostics(odr,
209 YAZ_BIB1_INIT_NEGOTIATION_OPTION_REQUIRED,
210 "Virtual host not given");
211 package.response() = apdu;
213 package.session().close();
218 yazpp_1::SocketManager *sm = new yazpp_1::SocketManager;
219 yazpp_1::PDU_Assoc *pdu_as = new yazpp_1::PDU_Assoc(sm);
220 yf::Z3950Client::Assoc *as = new yf::Z3950Client::Assoc(package.session(),
223 m_clients.push_back(as);
227 void yf::Z3950Client::Pimpl::send_and_receive(Package &package,
228 yf::Z3950Client::Assoc *c)
230 Z_GDU *gdu = package.request().get();
232 if (!gdu || gdu->which != Z_GDU_Z3950)
237 c->m_package = &package;
241 c->client(c->m_host.c_str());
243 while (c->m_waiting && c->m_socket_manager->processEvent() > 0)
254 // relay the package ..
256 c->send_GDU(gdu, &len);
258 while (c->m_waiting && c->m_socket_manager->processEvent() > 0)
262 void yf::Z3950Client::Pimpl::release_assoc(Package &package,
263 yf::Z3950Client::Assoc *c)
265 if (package.session().is_closed())
267 boost::mutex::scoped_lock lock(m_mutex);
268 std::list<yf::Z3950Client::Assoc *>::iterator it;
270 for (it = m_clients.begin(); it != m_clients.end(); it++)
272 if ((*it)->m_session_id == package.session())
275 if (it != m_clients.end())
277 // the Z_Assoc and PDU_Assoc must be destroyed before
278 // the socket manager.. so pull that out.. first..
279 yazpp_1::SocketManager *s = (*it)->m_socket_manager;
280 delete *it; // destroy Z_Assoc
281 delete s; // then manager
287 void yf::Z3950Client::process(Package &package) const
289 yf::Z3950Client::Assoc *c = m_p->get_assoc(package);
292 m_p->send_and_receive(package, c);
293 m_p->release_assoc(package, c);
301 * indent-tabs-mode: nil
302 * c-file-style: "stroustrup"
304 * vim: shiftwidth=4 tabstop=8 expandtab