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1 | /*************************************************************************** |
2 | * Copyright (C) 2006 by Gerd v. Egidy * | |
3 | * gve@intra2net.com * | |
4 | * * | |
5 | * This library is free software; you can redistribute it and/or modify * | |
6 | * it under the terms of the GNU Lesser General Public License version * | |
7 | * 2.1 as published by the Free Software Foundation. * | |
8 | * * | |
9 | * This library is distributed in the hope that it will be useful, * | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
12 | * GNU Lesser General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU Lesser General Public * | |
15 | * License along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | #include <string> | |
21 | #include <sstream> | |
22 | #include <stdexcept> | |
23 | ||
24 | #include <boost/archive/binary_oarchive.hpp> | |
25 | #include <boost/archive/binary_iarchive.hpp> | |
26 | #include <boost/archive/xml_oarchive.hpp> | |
27 | #include <boost/archive/xml_iarchive.hpp> | |
28 | #include <boost/serialization/serialization.hpp> | |
7087e187 GE |
29 | |
30 | #include "command_server.hxx" | |
31 | #include "container.hxx" | |
a7170401 | 32 | #include "log.hxx" |
7087e187 GE |
33 | |
34 | using namespace std; | |
35 | ||
36 | namespace libt2n | |
37 | { | |
38 | ||
39 | /// handle a command including deserialization and answering | |
40 | void command_server::handle_packet(const std::string& packet, server_connection* conn) | |
41 | { | |
a7170401 GE |
42 | OBJLOGSTREAM(s,debug,"handling packet from connection " << conn->get_id()); |
43 | ||
7087e187 GE |
44 | // deserialize packet |
45 | istringstream ifs(packet); | |
46 | boost::archive::binary_iarchive ia(ifs); | |
47 | command_container ccont; | |
48 | ||
49 | // TODO: catch | |
50 | ia >> ccont; | |
51 | ||
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52 | std::ostream* ostr; |
53 | if ((ostr=s.get_logstream(fulldebug))!=NULL) | |
54 | { | |
55 | (*ostr) << "decoded packet data: " << std::endl; | |
56 | boost::archive::xml_oarchive xo(*ostr); | |
57 | xo << BOOST_SERIALIZATION_NVP(ccont); | |
58 | } | |
59 | ||
7087e187 GE |
60 | // TODO: cast to command subclass (template) |
61 | command *cmd=ccont.get_command(); | |
62 | ||
63 | result_container res; | |
64 | ||
65 | if (cmd) | |
66 | { | |
67 | try | |
68 | { | |
69 | res.set_result((*cmd)()); | |
70 | } | |
71 | catch (t2n_exception &e) | |
72 | { res.set_exception(e.clone()); } | |
73 | catch (...) | |
74 | { throw; } | |
75 | } | |
76 | else | |
77 | throw logic_error("uninitialized command called"); | |
78 | ||
79 | ostringstream ofs; | |
80 | boost::archive::binary_oarchive oa(ofs); | |
81 | ||
82 | // TODO: catch | |
83 | oa << res; | |
84 | ||
d535333f GE |
85 | if ((ostr=s.get_logstream(fulldebug))!=NULL) |
86 | { | |
87 | (*ostr) << "returning result, decoded data: " << std::endl; | |
88 | boost::archive::xml_oarchive xo(*ostr); | |
89 | xo << BOOST_SERIALIZATION_NVP(res); | |
90 | } | |
91 | ||
7087e187 GE |
92 | conn->write(ofs.str()); |
93 | } | |
94 | ||
95 | /** @brief handle incoming commands | |
96 | @param usec_timeout wait until new data is found, max timeout usecs. | |
97 | -1: wait endless, 0: no timeout | |
98 | */ | |
99 | void command_server::handle(long long usec_timeout) | |
100 | { | |
101 | if (s.fill_buffer(usec_timeout)) | |
102 | { | |
103 | string packet; | |
104 | unsigned int conn_id; | |
105 | ||
106 | while (s.get_packet(packet,conn_id)) | |
107 | handle_packet(packet,s.get_connection(conn_id)); | |
108 | } | |
109 | s.cleanup(); | |
110 | } | |
111 | ||
112 | } |