2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Author : Maxim Mamontov <faust@stargazer.dp.ua>
22 * This file contains a realization of a base postgresql-storage plugin class
25 * FreeMb logging on disconnects added
28 * Reconnection on faults added
34 * Initial implementation
37 * $Date: 2010/01/06 10:43:48 $
47 #include "stg/module_settings.h"
48 #include "stg/plugin_creator.h"
49 #include "postgresql_store_utils.h"
50 #include "postgresql_store.h"
52 PLUGIN_CREATOR<POSTGRESQL_STORE> pqStoreeCreator;
54 //-----------------------------------------------------------------------------
57 return pqStoreeCreator.GetPlugin();
60 //-----------------------------------------------------------------------------
61 POSTGRESQL_STORE::POSTGRESQL_STORE()
62 : versionString("postgresql_store v.1.3"),
64 database("stargazer"),
71 pthread_mutex_init(&mutex, NULL);
73 //-----------------------------------------------------------------------------
74 POSTGRESQL_STORE::~POSTGRESQL_STORE()
80 pthread_mutex_destroy(&mutex);
82 //-----------------------------------------------------------------------------
83 int POSTGRESQL_STORE::ParseSettings()
85 std::vector<PARAM_VALUE>::iterator i;
88 for(i = settings.moduleParams.begin(); i != settings.moduleParams.end(); ++i)
91 std::transform(s.begin(), s.end(), s.begin(), ToLower());
94 server = *(i->value.begin());
98 database = *(i->value.begin());
102 user = *(i->value.begin());
106 password = *(i->value.begin());
110 if (str2x(*(i->value.begin()), retries))
112 strError = "Invalid 'retries' value";
113 printfd(__FILE__, "POSTGRESQL_STORE::ParseSettings(): '%s'\n", strError.c_str());
119 clientEncoding = "KOI8";
123 //-----------------------------------------------------------------------------
124 int POSTGRESQL_STORE::Connect()
127 params = "host=" + server + " "
128 + "dbname=" + database + " "
129 + "user=" + user + " "
130 + "password=" + password;
132 connection = PQconnectdb(params.c_str());
134 if (PQstatus(connection) != CONNECTION_OK)
136 strError = PQerrorMessage(connection);
137 printfd(__FILE__, "POSTGRESQL_STORE::Connect(): '%s'\n", strError.c_str());
138 // Will try to connect later
142 if (PQsetClientEncoding(connection, clientEncoding.c_str()))
144 strError = PQerrorMessage(connection);
145 printfd(__FILE__, "POSTGRESQL_STORE::Connect(): '%s'\n", strError.c_str());
149 return CheckVersion();
151 //-----------------------------------------------------------------------------
152 int POSTGRESQL_STORE::Reset() const
154 for (int i = 0; i < retries && PQstatus(connection) != CONNECTION_OK; ++i)
156 struct timespec ts = {1, 0};
157 nanosleep(&ts, NULL);
161 if (PQstatus(connection) != CONNECTION_OK)
163 strError = PQerrorMessage(connection);
164 printfd(__FILE__, "POSTGRESQL_STORE::Reset(): '%s'\n", strError.c_str());
168 if (PQsetClientEncoding(connection, clientEncoding.c_str()))
170 strError = PQerrorMessage(connection);
171 printfd(__FILE__, "POSTGRESQL_STORE::Reset(): '%s'\n", strError.c_str());
175 return CheckVersion();
177 //-----------------------------------------------------------------------------
178 int POSTGRESQL_STORE::CheckVersion() const
181 if (StartTransaction())
183 strError = "Failed to start transaction";
184 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
188 PGresult * result = PQexec(connection, "SELECT MAX(version) FROM tb_info");
190 if (PQresultStatus(result) != PGRES_TUPLES_OK)
192 strError = PQresultErrorMessage(result);
194 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n");
195 RollbackTransaction();
199 if (str2x(PQgetvalue(result, 0, 0), version))
201 strError = "Invalid DB version";
203 RollbackTransaction();
204 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
210 if (version < DB_MIN_VERSION)
212 strError = "DB version too old";
213 RollbackTransaction();
214 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
220 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): I recommend you to upgrade your DB to higher version to support FreeMb logging on disconnect. Current version is %d\n", version);
223 if (CommitTransaction())
225 strError = "Failed to commit transaction";
226 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
232 //-----------------------------------------------------------------------------