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 "postgresql_store.h"
48 #include "postgresql_store_utils.h"
49 #include "stg/module_settings.h"
51 class POSTGRESQL_STORE_CREATOR
54 POSTGRESQL_STORE_CREATOR()
55 : pqStore(new POSTGRESQL_STORE())
58 ~POSTGRESQL_STORE_CREATOR()
62 POSTGRESQL_STORE * GetStore() { return pqStore; };
64 POSTGRESQL_STORE * pqStore;
67 //-----------------------------------------------------------------------------
70 return pqStoreeCreator.GetStore();
73 //-----------------------------------------------------------------------------
74 POSTGRESQL_STORE::POSTGRESQL_STORE()
75 : versionString("postgresql_store v.1.3"),
77 database("stargazer"),
83 pthread_mutex_init(&mutex, NULL);
85 //-----------------------------------------------------------------------------
86 POSTGRESQL_STORE::~POSTGRESQL_STORE()
92 pthread_mutex_destroy(&mutex);
94 //-----------------------------------------------------------------------------
95 int POSTGRESQL_STORE::ParseSettings()
97 std::vector<PARAM_VALUE>::iterator i;
100 for(i = settings.moduleParams.begin(); i != settings.moduleParams.end(); ++i)
103 std::transform(s.begin(), s.end(), s.begin(), ToLower());
106 server = *(i->value.begin());
110 database = *(i->value.begin());
114 user = *(i->value.begin());
118 password = *(i->value.begin());
122 clientEncoding = "KOI8";
126 //-----------------------------------------------------------------------------
127 int POSTGRESQL_STORE::Connect()
130 params = "host=" + server + " "
131 + "dbname=" + database + " "
132 + "user=" + user + " "
133 + "password=" + password;
135 connection = PQconnectdb(params.c_str());
137 if (PQstatus(connection) != CONNECTION_OK)
139 strError = PQerrorMessage(connection);
140 printfd(__FILE__, "POSTGRESQL_STORE::Connect(): '%s'\n", strError.c_str());
144 if (PQsetClientEncoding(connection, clientEncoding.c_str()))
146 strError = PQerrorMessage(connection);
147 printfd(__FILE__, "POSTGRESQL_STORE::Connect(): '%s'\n", strError.c_str());
151 return CheckVersion();
153 //-----------------------------------------------------------------------------
154 int POSTGRESQL_STORE::Reset() const
158 if (PQstatus(connection) != CONNECTION_OK)
160 strError = PQerrorMessage(connection);
161 printfd(__FILE__, "POSTGRESQL_STORE::Reset(): '%s'\n", strError.c_str());
165 if (PQsetClientEncoding(connection, clientEncoding.c_str()))
167 strError = PQerrorMessage(connection);
168 printfd(__FILE__, "POSTGRESQL_STORE::Reset(): '%s'\n", strError.c_str());
172 return CheckVersion();
174 //-----------------------------------------------------------------------------
175 int POSTGRESQL_STORE::CheckVersion() const
178 if (StartTransaction())
180 strError = "Failed to start transaction";
181 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
185 PGresult * result = PQexec(connection, "SELECT MAX(version) FROM tb_info");
187 if (PQresultStatus(result) != PGRES_TUPLES_OK)
189 strError = PQresultErrorMessage(result);
191 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n");
192 RollbackTransaction();
196 if (str2x(PQgetvalue(result, 0, 0), version))
198 strError = "Invalid DB version";
200 RollbackTransaction();
201 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
207 if (version < DB_MIN_VERSION)
209 strError = "DB version too old";
210 RollbackTransaction();
211 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
217 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);
220 if (CommitTransaction())
222 strError = "Failed to commit transaction";
223 printfd(__FILE__, "POSTGRESQL_STORE::CheckVersion(): '%s'\n", strError.c_str());
229 //-----------------------------------------------------------------------------