mirror of
https://github.com/worldforge/cyphesis
synced 2026-08-13 12:26:04 -04:00
1571 lines
44 KiB
C++
1571 lines
44 KiB
C++
// Cyphesis Online RPG Server and AI Engine
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// Copyright (C) 2000-2007 Alistair Riddoch
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// $Id$
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#include "Database.h"
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#include "id.h"
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#include "log.h"
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#include "debug.h"
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#include "globals.h"
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#include "compose.hpp"
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#include "const.h"
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#include <Atlas/Message/MEncoder.h>
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#include <Atlas/Message/Element.h>
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#include <Atlas/Codecs/XML.h>
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#include <varconf/config.h>
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#include <sstream>
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#include <cstring>
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#include <cstdlib>
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#include <cassert>
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using Atlas::Message::Element;
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using Atlas::Message::MapType;
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using Atlas::Objects::Root;
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using String::compose;
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typedef Atlas::Codecs::XML Serialiser;
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static const bool debug_flag = false;
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Database * Database::m_instance = NULL;
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static void databaseNotice(void *, const char * message)
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{
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log(NOTICE, "Notice from database:");
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log_formatted(NOTICE, message);
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}
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Database::Database() : m_rule_db("rules"),
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m_queryInProgress(false),
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m_connection(NULL)
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{
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}
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Database::~Database()
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{
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if (pendingQueries.size() != 0) {
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log(ERROR, compose("Database delete with %1 queries pending",
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pendingQueries.size()));
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}
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}
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bool Database::tuplesOk()
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{
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assert(m_connection != 0);
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bool status = false;
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PGresult * res;
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while ((res = PQgetResult(m_connection)) != NULL) {
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if (PQresultStatus(res) == PGRES_TUPLES_OK) {
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status = true;
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}
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PQclear(res);
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};
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return status;
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}
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int Database::commandOk()
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{
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assert(m_connection != 0);
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int status = -1;
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PGresult * res;
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while ((res = PQgetResult(m_connection)) != NULL) {
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if (PQresultStatus(res) == PGRES_COMMAND_OK) {
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status = 0;
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} else {
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reportError();
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}
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PQclear(res);
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};
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return status;
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}
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int Database::createInstanceDatabase()
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{
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assert(::instance != CYPHESIS);
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std::string error_message;
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if (connect(CYPHESIS, error_message) != 0) {
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log(ERROR, compose("Connection to master database failed: \n%1",
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error_message));
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return -1;
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}
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std::string dbname;
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if (::instance == CYPHESIS) {
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dbname = CYPHESIS;
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} else {
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dbname = compose("%1_%2", CYPHESIS, ::instance);
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}
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readConfigItem(::instance, "dbname", dbname);
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if (runCommandQuery(compose("CREATE DATABASE %1", dbname)) != 0) {
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shutdownConnection();
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return -1;
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}
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shutdownConnection();
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return 0;
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}
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int Database::connect(const std::string & context, std::string & error_msg)
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{
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std::stringstream conninfos;
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std::string db_server;
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if (readConfigItem(context, "dbserver", db_server) == 0) {
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if (db_server.empty()) {
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log(WARNING, "Empty database hostname specified in config file. "
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"Using none.");
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} else {
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conninfos << "host=" << db_server << " ";
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}
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}
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std::string dbname;
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if (context == CYPHESIS) {
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dbname = CYPHESIS;
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} else {
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dbname = compose("%1_%2", CYPHESIS, ::instance);
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}
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readConfigItem(context, "dbname", dbname);
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conninfos << "dbname=" << dbname << " ";
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std::string db_user;
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if (readConfigItem(context, "dbuser", db_user) == 0) {
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if (db_user.empty()) {
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log(WARNING, "Empty username specified in config file. "
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"Using current user.");
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} else {
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conninfos << "user=" << db_user << " ";
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}
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}
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std::string db_passwd;
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if (readConfigItem(context, "dbpasswd", db_passwd) == 0) {
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conninfos << "password=" << db_passwd << " ";
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}
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const std::string cinfo = conninfos.str();
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m_connection = PQconnectdb(cinfo.c_str());
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if (m_connection == NULL) {
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error_msg = "Unknown error";
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return -1;
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}
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if (PQstatus(m_connection) != CONNECTION_OK) {
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error_msg = PQerrorMessage(m_connection);
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PQfinish(m_connection);
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m_connection = 0;
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return -1;
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}
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return 0;
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}
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int Database::initConnection()
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{
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std::string error_message;
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if (connect(::instance, error_message) != 0) {
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log(ERROR, "Connection to database failed:");
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log_formatted(ERROR, error_message);
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return -1;
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}
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PQsetNoticeProcessor(m_connection, databaseNotice, 0);
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return 0;
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}
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int Database::initRule(bool createTables)
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{
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assert(m_connection != 0);
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int status = 0;
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clearPendingQuery();
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status = PQsendQuery(m_connection, "SELECT * FROM rules WHERE "
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"id = 'test' AND contents = 'test'");
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if (!status) {
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reportError();
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return -1;
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}
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if (!tuplesOk()) {
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debug(std::cout << "Rule table does not exist"
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<< std::endl << std::flush;);
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if (createTables) {
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std::string query = compose("CREATE TABLE rules ( "
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"id varchar(%1) PRIMARY KEY, "
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"ruleset varchar(%1), "
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"contents text ) "
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"WITHOUT OIDS", consts::id_len);
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status = PQsendQuery(m_connection, query.c_str());
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if (!status) {
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reportError();
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return -1;
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}
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if (commandOk() != 0) {
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log(ERROR, "Error creating rules table in database");
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reportError();
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return -1;
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}
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allTables.insert("rules");
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} else {
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log(ERROR, "Server table does not exist in database");
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return -1;
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}
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}
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allTables.insert("rules");
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return 0;
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}
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void Database::shutdownConnection()
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{
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if (m_connection != 0) {
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PQfinish(m_connection);
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m_connection = 0;
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}
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}
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Database * Database::instance()
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{
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if (m_instance == NULL) {
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m_instance = new Database();
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}
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return m_instance;
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}
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void Database::cleanup()
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{
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delete m_instance;
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m_instance = 0;
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}
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int Database::decodeObject(const std::string & data,
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Root &o)
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{
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if (data.empty()) {
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return 0;
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}
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std::stringstream str(data, std::ios::in);
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Serialiser codec(str, m_od);
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Atlas::Message::Encoder enc(codec);
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// Clear the decoder
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m_od.get();
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codec.poll();
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if (!m_od.check()) {
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log(WARNING, "Database entry does not appear to be decodable");
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return -1;
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}
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o = m_od.get();
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return 0;
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}
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int Database::decodeMessage(const std::string & data,
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MapType &o)
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{
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if (data.empty()) {
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return 0;
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}
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std::stringstream str(data, std::ios::in);
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Serialiser codec(str, m_d);
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Atlas::Message::Encoder enc(codec);
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// Clear the decoder
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m_d.get();
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codec.poll();
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if (!m_d.check()) {
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log(WARNING, "Database entry does not appear to be decodable");
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return -1;
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}
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o = m_d.get();
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return 0;
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}
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int Database::encodeObject(const MapType & o,
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std::string & data)
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{
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std::stringstream str;
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Serialiser codec(str, m_d);
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Atlas::Message::Encoder enc(codec);
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codec.streamBegin();
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enc.streamMessageElement(o);
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codec.streamEnd();
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std::string raw = str.str();
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char safe[raw.size() * 2 + 1];
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int errcode;
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PQescapeStringConn(m_connection, safe, raw.c_str(), raw.size(), &errcode);
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if (errcode != 0) {
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std::cerr << "ERROR: " << errcode << std::endl << std::flush;
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}
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data = safe;
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return 0;
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}
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int Database::getObject(const std::string & table,
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const std::string & key,
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MapType & o)
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{
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assert(m_connection != 0);
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debug(std::cout << "Database::getObject() " << table << "." << key
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<< std::endl << std::flush;);
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std::string query = std::string("SELECT * FROM ") + table + " WHERE id = '" + key + "'";
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clearPendingQuery();
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int status = PQsendQuery(m_connection, query.c_str());
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if (!status) {
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reportError();
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return -1;
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}
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PGresult * res;
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if ((res = PQgetResult(m_connection)) == NULL) {
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debug(std::cout << "Error accessing " << key << " in " << table
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<< " table" << std::endl << std::flush;);
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return -1;
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}
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if (PQntuples(res) < 1 || PQnfields(res) < 2) {
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debug(std::cout << "No entry for " << key << " in " << table
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<< " table" << std::endl << std::flush;);
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PQclear(res);
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while ((res = PQgetResult(m_connection)) != NULL) {
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PQclear(res);
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}
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return -1;
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}
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const char * data = PQgetvalue(res, 0, 1);
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debug(std::cout << "Got record " << key << " from database, value " << data
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<< std::endl << std::flush;);
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int ret = decodeMessage(data, o);
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PQclear(res);
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while ((res = PQgetResult(m_connection)) != NULL) {
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PQclear(res);
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log(ERROR, "Extra database result to simple query.");
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};
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return ret;
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}
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int Database::putObject(const std::string & table,
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const std::string & key,
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const MapType & o,
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const StringVector & c)
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{
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debug(std::cout << "Database::putObject() " << table << "." << key
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<< std::endl << std::flush;);
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std::stringstream str;
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Serialiser codec(str, m_d);
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Atlas::Message::Encoder enc(codec);
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codec.streamBegin();
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enc.streamMessageElement(o);
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codec.streamEnd();
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debug(std::cout << "Encoded to: " << str.str() << " "
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<< str.str().size() << std::endl << std::flush;);
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std::string query = std::string("INSERT INTO ") + table + " VALUES ('" + key;
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StringVector::const_iterator Iend = c.end();
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for (StringVector::const_iterator I = c.begin(); I != Iend; ++I) {
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query += "', '";
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query += *I;
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}
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query += "', '";
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query += str.str();
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query += "')";
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return scheduleCommand(query);
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}
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int Database::updateObject(const std::string & table,
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const std::string & key,
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const MapType & o)
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{
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debug(std::cout << "Database::updateObject() " << table << "." << key
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<< std::endl << std::flush;);
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std::stringstream str;
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Serialiser codec(str, m_d);
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Atlas::Message::Encoder enc(codec);
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codec.streamBegin();
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enc.streamMessageElement(o);
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codec.streamEnd();
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std::string query = std::string("UPDATE ") + table + " SET contents = '" +
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str.str() + "' WHERE id='" + key + "'";
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return scheduleCommand(query);
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}
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int Database::delObject(const std::string & table, const std::string & key)
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{
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#if 0
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Dbt key, data;
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key.set_data((void*)keystr);
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key.set_size(strlen(keystr) + 1);
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int err;
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if ((err = db.del(NULL, &key, 0)) != 0) {
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debug(cout << "db.del.ERROR! " << err << endl << flush;);
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return false;
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}
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return true;
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#endif
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return 0;
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}
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bool Database::hasKey(const std::string & table, const std::string & key)
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{
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assert(m_connection != 0);
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std::string query = std::string("SELECT id FROM ") + table +
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" WHERE id='" + key + "'";
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clearPendingQuery();
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int status = PQsendQuery(m_connection, query.c_str());
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if (!status) {
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reportError();
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return false;
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}
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PGresult * res;
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bool ret = false;
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if ((res = PQgetResult(m_connection)) == NULL) {
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debug(std::cout << "Error accessing " << table
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<< " table" << std::endl << std::flush;);
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return false;
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}
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int results = PQntuples(res);
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if (results > 0) {
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ret = true;
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}
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PQclear(res);
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while ((res = PQgetResult(m_connection)) != NULL) {
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PQclear(res);
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}
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return ret;
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}
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int Database::getTable(const std::string & table,
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std::map<std::string, Root> & contents)
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{
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if (m_connection == 0) {
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log(CRITICAL, "Database connection is down. This is okay during tests");
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return -1;
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}
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std::string query = std::string("SELECT * FROM ") + table;
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clearPendingQuery();
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int status = PQsendQuery(m_connection, query.c_str());
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if (!status) {
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reportError();
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return -1;
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}
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PGresult * res;
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if ((res = PQgetResult(m_connection)) == NULL) {
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debug(std::cout << "Error accessing " << table
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<< " table" << std::endl << std::flush;);
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return -1;
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}
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int results = PQntuples(res);
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if (results < 1 || PQnfields(res) < 2) {
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debug(std::cout << "No entries in " << table
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<< " table" << std::endl << std::flush;);
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PQclear(res);
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while ((res = PQgetResult(m_connection)) != NULL) {
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PQclear(res);
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}
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return -1;
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}
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int id_column = PQfnumber(res, "id"),
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contents_column = PQfnumber(res, "contents");
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if (id_column == -1 || contents_column == -1) {
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log(ERROR, "Could not find 'id' and 'contents' columns in database result");
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return -1;
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}
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Root t;
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for(int i = 0; i < results; ++i) {
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const char * key = PQgetvalue(res, i, id_column);
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const char * data = PQgetvalue(res, i, contents_column);
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debug(std::cout << "Got record " << key << " from database, value "
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<< data << std::endl << std::flush;);
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if (decodeObject(data, t) == 0) {
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contents[key] = t;
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}
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}
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PQclear(res);
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while ((res = PQgetResult(m_connection)) != NULL) {
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PQclear(res);
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log(ERROR, "Extra database result to simple query.");
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};
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return 0;
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}
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int Database::clearTable(const std::string & table)
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{
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std::string query = std::string("DELETE FROM ") + table;
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return scheduleCommand(query);
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}
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void Database::reportError()
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{
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assert(m_connection != 0);
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char * message = PQerrorMessage(m_connection);
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assert(message != NULL);
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if (strlen(message) < 2) {
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log(WARNING, "Zero length database error message");
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}
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std::string msg = std::string("DATABASE: ") + message;
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msg = msg.substr(0, msg.size() - 1);
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log(ERROR, msg);
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}
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|
|
|
const DatabaseResult Database::runSimpleSelectQuery(const std::string & query)
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
debug(std::cout << "QUERY: " << query << std::endl << std::flush;);
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, query.c_str());
|
|
if (!status) {
|
|
log(ERROR, "runSimpleSelectQuery(): Database query error.");
|
|
reportError();
|
|
return DatabaseResult(0);
|
|
}
|
|
debug(std::cout << "done" << std::endl << std::flush;);
|
|
PGresult * res;
|
|
if ((res = PQgetResult(m_connection)) == NULL) {
|
|
log(ERROR, "Error selecting.");
|
|
reportError();
|
|
debug(std::cout << "Row query didn't work"
|
|
<< std::endl << std::flush;);
|
|
return DatabaseResult(0);
|
|
}
|
|
if (PQresultStatus(res) != PGRES_TUPLES_OK) {
|
|
log(ERROR, "Error selecting row.");
|
|
debug(std::cout << "QUERY: " << query << std::endl << std::flush;);
|
|
reportError();
|
|
PQclear(res);
|
|
res = 0;
|
|
}
|
|
PGresult * nres;
|
|
while ((nres = PQgetResult(m_connection)) != NULL) {
|
|
PQclear(nres);
|
|
log(ERROR, "Extra database result to simple query.");
|
|
};
|
|
return DatabaseResult(res);
|
|
}
|
|
|
|
int Database::runCommandQuery(const std::string & query)
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, query.c_str());
|
|
if (!status) {
|
|
log(ERROR, "runCommandQuery(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
if (commandOk() != 0) {
|
|
log(ERROR, "Error running command query row.");
|
|
log(NOTICE, query);
|
|
reportError();
|
|
debug(std::cout << "Row query didn't work"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
debug(std::cout << "Query worked" << std::endl << std::flush;);
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int Database::registerRelation(std::string & tablename,
|
|
const std::string & sourcetable,
|
|
const std::string & targettable,
|
|
RelationType kind)
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
tablename = sourcetable + "_" + targettable;
|
|
|
|
std::string query = compose("SELECT * FROM %1 WHERE source = 0 "
|
|
"AND target = 0", tablename);
|
|
|
|
debug(std::cout << "QUERY: " << query << std::endl << std::flush;);
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, query.c_str());
|
|
if (!status) {
|
|
log(ERROR, "registerRelation(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
if (!tuplesOk()) {
|
|
debug(reportError(););
|
|
debug(std::cout << "Table does not yet exist"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
debug(std::cout << "Table exists" << std::endl << std::flush;);
|
|
allTables.insert(tablename);
|
|
return 0;
|
|
}
|
|
|
|
query = "CREATE TABLE ";
|
|
query += tablename;
|
|
if (kind == OneToOne || kind == ManyToOne) {
|
|
query += " (source integer UNIQUE REFERENCES ";
|
|
} else {
|
|
query += " (source integer REFERENCES ";
|
|
}
|
|
query += sourcetable;
|
|
if (kind == OneToOne || kind == OneToMany) {
|
|
query += " (id), target integer UNIQUE REFERENCES ";
|
|
} else {
|
|
query += " (id), target integer REFERENCES ";
|
|
}
|
|
query += targettable;
|
|
query += " (id) ON DELETE CASCADE ) WITHOUT OIDS";
|
|
|
|
debug(std::cout << "CREATE QUERY: " << query
|
|
<< std::endl << std::flush;);
|
|
if (runCommandQuery(query) != 0) {
|
|
return -1;
|
|
}
|
|
allTables.insert(tablename);
|
|
#if 0
|
|
if (kind == ManyToOne || kind == OneToOne) {
|
|
return true;
|
|
} else {
|
|
std::string indexQuery = "CREATE INDEX ";
|
|
indexQuery += tablename;
|
|
indexQuery += "_source_idx ON ";
|
|
indexQuery += tablename;
|
|
indexQuery += " (source)";
|
|
return runCommandQuery(indexQuery) == 0;
|
|
}
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
const DatabaseResult Database::selectRelation(const std::string & name,
|
|
const std::string & id)
|
|
{
|
|
std::string query = "SELECT target FROM ";
|
|
query += name;
|
|
query += " WHERE source = ";
|
|
query += id;
|
|
|
|
debug(std::cout << "Selecting on id = " << id << " ... " << std::flush;);
|
|
|
|
return runSimpleSelectQuery(query);
|
|
}
|
|
|
|
int Database::createRelationRow(const std::string & name,
|
|
const std::string & id,
|
|
const std::string & other)
|
|
{
|
|
std::string query = "INSERT INTO ";
|
|
query += name;
|
|
query += " (source, target) VALUES (";
|
|
query += id;
|
|
query += ", ";
|
|
query += other;
|
|
query += ")";
|
|
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
int Database::removeRelationRow(const std::string & name,
|
|
const std::string & id)
|
|
{
|
|
std::string query = "DELETE FROM ";
|
|
query += name;
|
|
query += " WHERE source = ";
|
|
query += id;
|
|
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
int Database::removeRelationRowByOther(const std::string & name,
|
|
const std::string & other)
|
|
{
|
|
std::string query = "DELETE FROM ";
|
|
query += name;
|
|
query += " WHERE target = ";
|
|
query += other;
|
|
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
int Database::registerSimpleTable(const std::string & name,
|
|
const MapType & row)
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
if (row.empty()) {
|
|
log(ERROR, "Attempt to create empty database table");
|
|
}
|
|
// Check whether the table exists
|
|
std::string query = "SELECT * FROM ";
|
|
std::string createquery = "CREATE TABLE ";
|
|
query += name;
|
|
createquery += name;
|
|
query += " WHERE id = 0";
|
|
createquery += " (id integer UNIQUE PRIMARY KEY";
|
|
MapType::const_iterator Iend = row.end();
|
|
for (MapType::const_iterator I = row.begin(); I != Iend; ++I) {
|
|
query += " AND ";
|
|
createquery += ", ";
|
|
const std::string & column = I->first;
|
|
query += column;
|
|
createquery += column;
|
|
const Element & type = I->second;
|
|
if (type.isString()) {
|
|
query += " LIKE 'foo'";
|
|
std::size_t size = type.String().size();
|
|
if (size == 0) {
|
|
createquery += " text";
|
|
} else {
|
|
char buf[32];
|
|
snprintf(buf, 32, "%zd", size);
|
|
createquery += " varchar(";
|
|
createquery += buf;
|
|
createquery += ")";
|
|
}
|
|
} else if (type.isInt()) {
|
|
query += " = 1";
|
|
createquery += " integer";
|
|
} else if (type.isFloat()) {
|
|
query += " = 1.0";
|
|
createquery += " float";
|
|
} else {
|
|
log(ERROR, "Illegal column type in database simple row");
|
|
}
|
|
}
|
|
|
|
debug(std::cout << "QUERY: " << query << std::endl << std::flush;);
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, query.c_str());
|
|
if (!status) {
|
|
log(ERROR, "registerSimpleTable(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
if (!tuplesOk()) {
|
|
debug(reportError(););
|
|
debug(std::cout << "Table does not yet exist"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
debug(std::cout << "Table exists" << std::endl << std::flush;);
|
|
allTables.insert(name);
|
|
return 0;
|
|
}
|
|
|
|
createquery += ") WITHOUT OIDS";
|
|
debug(std::cout << "CREATE QUERY: " << createquery
|
|
<< std::endl << std::flush;);
|
|
int ret = runCommandQuery(createquery);
|
|
if (ret == 0) {
|
|
allTables.insert(name);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
const DatabaseResult Database::selectSimpleRow(const std::string & id,
|
|
const std::string & name)
|
|
{
|
|
std::string query = "SELECT * FROM ";
|
|
query += name;
|
|
query += " WHERE id = ";
|
|
query += id;
|
|
|
|
debug(std::cout << "Selecting on id = " << id << " ... " << std::flush;);
|
|
|
|
return runSimpleSelectQuery(query);
|
|
}
|
|
|
|
const DatabaseResult Database::selectSimpleRowBy(const std::string & name,
|
|
const std::string & column,
|
|
const std::string & value)
|
|
{
|
|
std::string query = "SELECT * FROM ";
|
|
query += name;
|
|
query += " WHERE ";
|
|
query += column;
|
|
query += " = ";
|
|
query += value;
|
|
|
|
debug(std::cout << "Selecting on " << column << " = " << value
|
|
<< " ... " << std::flush;);
|
|
|
|
return runSimpleSelectQuery(query);
|
|
}
|
|
|
|
int Database::createSimpleRow(const std::string & name,
|
|
const std::string & id,
|
|
const std::string & columns,
|
|
const std::string & values)
|
|
{
|
|
std::string query = "INSERT INTO ";
|
|
query += name;
|
|
query += " ( id, ";
|
|
query += columns;
|
|
query += " ) VALUES ( ";
|
|
query += id;
|
|
query += ", ";
|
|
query += values;
|
|
query += ")";
|
|
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
int Database::updateSimpleRow(const std::string & name,
|
|
const std::string & key,
|
|
const std::string & value,
|
|
const std::string & columns)
|
|
{
|
|
std::string query = "UPDATE ";
|
|
query += name;
|
|
query += " SET ";
|
|
query += columns;
|
|
query += " WHERE ";
|
|
query += key;
|
|
query += "='";
|
|
query += value;
|
|
query += "'";
|
|
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
int Database::registerEntityIdGenerator()
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, "SELECT * FROM entity_ent_id_seq");
|
|
if (!status) {
|
|
log(ERROR, "registerEntityIdGenerator(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
if (!tuplesOk()) {
|
|
debug(reportError(););
|
|
debug(std::cout << "Sequence does not yet exist"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
debug(std::cout << "Sequence exists" << std::endl << std::flush;);
|
|
return 0;
|
|
}
|
|
return runCommandQuery("CREATE SEQUENCE entity_ent_id_seq");
|
|
}
|
|
|
|
long Database::newId(std::string & id)
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection,
|
|
"SELECT nextval('entity_ent_id_seq')");
|
|
if (!status) {
|
|
log(ERROR, "newId(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
PGresult * res;
|
|
if ((res = PQgetResult(m_connection)) == NULL) {
|
|
log(ERROR, "Error getting new ID.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
const char * cid = PQgetvalue(res, 0, 0);
|
|
id = cid;
|
|
PQclear(res);
|
|
while ((res = PQgetResult(m_connection)) != NULL) {
|
|
PQclear(res);
|
|
log(ERROR, "Extra database result to simple query.");
|
|
};
|
|
if (id.empty()) {
|
|
log(ERROR, "Unknown error getting ID from database.");
|
|
return -1;
|
|
}
|
|
return forceIntegerId(id);
|
|
}
|
|
|
|
int Database::registerEntityTable(const std::map<std::string, int> & chunks)
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, "SELECT * FROM entities");
|
|
if (!status) {
|
|
log(ERROR, "registerEntityIdGenerator(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
if (!tuplesOk()) {
|
|
debug(reportError(););
|
|
debug(std::cout << "Table does not yet exist"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
allTables.insert("entities");
|
|
// FIXME Flush out the whole state of the databases, to ensure they
|
|
// don't clog up while we are testing.
|
|
// runCommandQuery("DELETE FROM properties");
|
|
// runCommandQuery(compose("DELETE FROM entities WHERE id!=%1",
|
|
// consts::rootWorldIntId));
|
|
debug(std::cout << "Table exists" << std::endl << std::flush;);
|
|
return 0;
|
|
}
|
|
std::string query = compose("CREATE TABLE entities ("
|
|
"id integer UNIQUE PRIMARY KEY, "
|
|
"loc integer, "
|
|
"type varchar(%1), "
|
|
"seq integer", consts::id_len);
|
|
std::map<std::string, int>::const_iterator I = chunks.begin();
|
|
std::map<std::string, int>::const_iterator Iend = chunks.end();
|
|
for (; I != Iend; ++I) {
|
|
query += compose(", %1 varchar(1024)", I->first);
|
|
}
|
|
query += ")";
|
|
if (runCommandQuery(query) != 0) {
|
|
return -1;
|
|
}
|
|
allTables.insert("entities");
|
|
query = compose("INSERT INTO entities VALUES (%1, null, 'world')",
|
|
consts::rootWorldIntId);
|
|
if (runCommandQuery(query) != 0) {
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Database::insertEntity(const std::string & id,
|
|
const std::string & loc,
|
|
const std::string & type,
|
|
int seq,
|
|
const std::string & value)
|
|
{
|
|
std::string query = compose("INSERT INTO entities VALUES "
|
|
"(%1, %2, '%3', %4, '%5')",
|
|
id, loc, type, seq, value);
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
int Database::updateEntity(const std::string & id,
|
|
int seq,
|
|
const std::string & value)
|
|
{
|
|
std::string query = compose("UPDATE entities SET seq = %1, location = '%2'"
|
|
" WHERE id = %3", seq, value, id);
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
const DatabaseResult Database::selectEntities(const std::string & loc)
|
|
{
|
|
std::string query = compose("SELECT id, type, seq, location FROM entities"
|
|
" WHERE loc = %1", loc);
|
|
|
|
debug(std::cout << "Selecting on loc = " << loc << " ... " << std::flush;);
|
|
|
|
return runSimpleSelectQuery(query);
|
|
}
|
|
|
|
int Database::dropEntity(long id)
|
|
{
|
|
std::string query = compose("DELETE FROM properties WHERE id = '%1'", id);
|
|
|
|
scheduleCommand(query);
|
|
|
|
query = compose("DELETE FROM entities WHERE id = %1", id);
|
|
|
|
scheduleCommand(query);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int Database::registerPropertyTable()
|
|
{
|
|
assert(m_connection != 0);
|
|
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, "SELECT * FROM properties");
|
|
if (!status) {
|
|
log(ERROR, "registerPropertyIdGenerator(): Database query error.");
|
|
reportError();
|
|
return -1;
|
|
}
|
|
if (!tuplesOk()) {
|
|
debug(reportError(););
|
|
debug(std::cout << "Table does not yet exist"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
allTables.insert("properties");
|
|
debug(std::cout << "Table exists" << std::endl << std::flush;);
|
|
return 0;
|
|
}
|
|
allTables.insert("properties");
|
|
std::string query = compose("CREATE TABLE properties ("
|
|
"id integer REFERENCES entities "
|
|
"ON DELETE CASCADE, "
|
|
"name varchar(%1), "
|
|
"value text)", consts::id_len);
|
|
if (runCommandQuery(query) != 0) {
|
|
reportError();
|
|
return -1;
|
|
}
|
|
query = "CREATE INDEX property_names on properties (name)";
|
|
if (runCommandQuery(query) != 0) {
|
|
reportError();
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Database::insertProperties(const std::string & id,
|
|
const KeyValues & tuples)
|
|
{
|
|
int first = 1;
|
|
std::string query("INSERT INTO properties VALUES ");
|
|
KeyValues::const_iterator I = tuples.begin();
|
|
KeyValues::const_iterator Iend = tuples.end();
|
|
for (; I != Iend; ++I) {
|
|
if (first) {
|
|
query += compose("(%1, '%2', '%3')", id, I->first, I->second);
|
|
first = 0;
|
|
} else {
|
|
query += compose(", (%1, '%2', '%3')", id, I->first, I->second);
|
|
}
|
|
}
|
|
return scheduleCommand(query);
|
|
}
|
|
|
|
const DatabaseResult Database::selectProperties(const std::string & id)
|
|
{
|
|
std::string query = compose("SELECT name, value FROM properties"
|
|
" WHERE id = %1", id);
|
|
|
|
debug(std::cout << "Selecting on id = " << id << " ... "
|
|
<< std::endl << std::flush;);
|
|
|
|
return runSimpleSelectQuery(query);
|
|
}
|
|
|
|
int Database::updateProperties(const std::string & id,
|
|
const KeyValues & tuples)
|
|
{
|
|
KeyValues::const_iterator I = tuples.begin();
|
|
KeyValues::const_iterator Iend = tuples.end();
|
|
for (; I != Iend; ++I) {
|
|
std::string query = compose("UPDATE properties SET value = '%3' WHERE"
|
|
" id=%1 AND name='%2'",
|
|
id, I->first, I->second);
|
|
scheduleCommand(query);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if 0
|
|
// Interface for tables for sparse sequences or arrays of data. Terrain
|
|
// control points and other spatial data.
|
|
|
|
static const char * array_axes[] = { "i", "j", "k", "l", "m" };
|
|
|
|
bool Database::registerArrayTable(const std::string & name,
|
|
unsigned int dimension,
|
|
const MapType & row)
|
|
{
|
|
if (m_connection == 0) {
|
|
log(CRITICAL, "Database connection is down. This is okay during tests");
|
|
return false;
|
|
}
|
|
|
|
|
|
assert(dimension <= 5);
|
|
|
|
if (row.empty()) {
|
|
log(ERROR, "Attempt to create empty array table");
|
|
}
|
|
|
|
std::string query("SELECT * from ");
|
|
std::string createquery("CREATE TABLE ");
|
|
std::string indexquery("CREATE UNIQUE INDEX ");
|
|
|
|
query += name;
|
|
query += " WHERE id = 0";
|
|
|
|
createquery += name;
|
|
createquery += " (id integer REFERENCES entities NOT NULL";
|
|
|
|
indexquery += name;
|
|
indexquery += "_point_idx on ";
|
|
indexquery += name;
|
|
indexquery += " (id";
|
|
|
|
for (unsigned int i = 0; i < dimension; ++i) {
|
|
query += " AND ";
|
|
query += array_axes[i];
|
|
query += " = 0";
|
|
|
|
createquery += ", ";
|
|
createquery += array_axes[i];
|
|
createquery += " integer NOT NULL";
|
|
|
|
indexquery += ", ";
|
|
indexquery += array_axes[i];
|
|
}
|
|
|
|
MapType::const_iterator Iend = row.end();
|
|
for (MapType::const_iterator I = row.begin(); I != Iend; ++I) {
|
|
const std::string & column = I->first;
|
|
|
|
query += " AND ";
|
|
query += column;
|
|
|
|
createquery += ", ";
|
|
createquery += column;
|
|
|
|
const Element & type = I->second;
|
|
|
|
if (type.isString()) {
|
|
query += " LIKE 'foo'";
|
|
int size = type.String().size();
|
|
if (size == 0) {
|
|
createquery += " text";
|
|
} else {
|
|
char buf[32];
|
|
snprintf(buf, 32, "%d", size);
|
|
createquery += " varchar(";
|
|
createquery += buf;
|
|
createquery += ")";
|
|
}
|
|
} else if (type.isInt()) {
|
|
query += " = 1";
|
|
createquery += " integer";
|
|
} else if (type.isFloat()) {
|
|
query += " = 1.0";
|
|
createquery += " float";
|
|
} else {
|
|
log(ERROR, "Illegal column type in database array row");
|
|
}
|
|
}
|
|
|
|
debug(std::cout << "QUERY: " << query << std::endl << std::flush;);
|
|
clearPendingQuery();
|
|
int status = PQsendQuery(m_connection, query.c_str());
|
|
if (!status) {
|
|
log(ERROR, "registerArrayTable(): Database query error.");
|
|
reportError();
|
|
return false;
|
|
}
|
|
if (!tuplesOk()) {
|
|
debug(reportError(););
|
|
debug(std::cout << "Table does not yet exist"
|
|
<< std::endl << std::flush;);
|
|
} else {
|
|
debug(std::cout << "Table exists" << std::endl << std::flush;);
|
|
allTables.insert(name);
|
|
return true;
|
|
}
|
|
|
|
createquery += ") WITHOUT OIDS";
|
|
debug(std::cout << "CREATE QUERY: " << createquery
|
|
<< std::endl << std::flush;);
|
|
int ret = runCommandQuery(createquery);
|
|
if (ret != 0) {
|
|
return false;
|
|
}
|
|
indexquery += ")";
|
|
debug(std::cout << "INDEX QUERY: " << indexquery
|
|
<< std::endl << std::flush;);
|
|
ret = runCommandQuery(indexquery);
|
|
if (ret != 0) {
|
|
return false;
|
|
}
|
|
allTables.insert(name);
|
|
return true;
|
|
}
|
|
|
|
const DatabaseResult Database::selectArrayRows(const std::string & name,
|
|
const std::string & id)
|
|
{
|
|
std::string query("SELECT * FROM ");
|
|
query += name;
|
|
query += " WHERE id = ";
|
|
query += id;
|
|
|
|
debug(std::cout << "ARRAY QUERY: " << query << std::endl << std::flush;);
|
|
|
|
return runSimpleSelectQuery(query);
|
|
}
|
|
|
|
int Database::createArrayRow(const std::string & name,
|
|
const std::string & id,
|
|
const std::vector<int> & key,
|
|
const MapType & data)
|
|
{
|
|
assert(key.size() > 0);
|
|
assert(key.size() <= 5);
|
|
assert(!data.empty());
|
|
|
|
std::stringstream query;
|
|
query << "INSERT INTO " << name << " ( id";
|
|
for (unsigned int i = 0; i < key.size(); ++i) {
|
|
query << ", " << array_axes[i];
|
|
}
|
|
MapType::const_iterator Iend = data.end();
|
|
for (MapType::const_iterator I = data.begin(); I != Iend; ++I) {
|
|
query << ", " << I->first;
|
|
}
|
|
query << " ) VALUES ( " << id;
|
|
std::vector<int>::const_iterator Jend = key.end();
|
|
for (std::vector<int>::const_iterator J = key.begin(); J != Jend; ++J) {
|
|
query << ", " << *J;
|
|
}
|
|
// We assume data has not been modified, so Iend is still valid
|
|
for (MapType::const_iterator I = data.begin(); I != Iend; ++I) {
|
|
const Element & e = I->second;
|
|
switch (e.getType()) {
|
|
case Element::TYPE_INT:
|
|
query << ", " << e.Int();
|
|
break;
|
|
case Element::TYPE_FLOAT:
|
|
query << ", " << e.Float();
|
|
break;
|
|
case Element::TYPE_STRING:
|
|
query << ", " << e.String();
|
|
break;
|
|
default:
|
|
log(ERROR, "Bad type constructing array database row for insert");
|
|
break;
|
|
}
|
|
}
|
|
query << ")";
|
|
|
|
std::string qstr = query.str();
|
|
debug(std::cout << "QUery: " << qstr << std::endl << std::flush;);
|
|
return scheduleCommand(qstr);
|
|
}
|
|
|
|
int Database::updateArrayRow(const std::string & name,
|
|
const std::string & id,
|
|
const std::vector<int> & key,
|
|
const Atlas::Message::MapType & data)
|
|
{
|
|
assert(key.size() > 0);
|
|
assert(key.size() <= 5);
|
|
assert(!data.empty());
|
|
|
|
std::stringstream query;
|
|
|
|
query << "UPDATE " << name << " SET ";
|
|
MapType::const_iterator Iend = data.end();
|
|
for (MapType::const_iterator I = data.begin(); I != Iend; ++I) {
|
|
if (I != data.begin()) {
|
|
query << ", ";
|
|
}
|
|
query << I->first << " = ";
|
|
const Element & e = I->second;
|
|
switch (e.getType()) {
|
|
case Element::TYPE_INT:
|
|
query << e.Int();
|
|
break;
|
|
case Element::TYPE_FLOAT:
|
|
query << e.Float();
|
|
break;
|
|
case Element::TYPE_STRING:
|
|
query << "'" << e.String() << "'";
|
|
break;
|
|
default:
|
|
log(ERROR, "Bad type constructing array database row for update");
|
|
break;
|
|
}
|
|
}
|
|
query << " WHERE id='" << id << "'";
|
|
for (unsigned int i = 0; i < key.size(); ++i) {
|
|
query << " AND " << array_axes[i] << " = " << key[i];
|
|
}
|
|
|
|
std::string qstr = query.str();
|
|
debug(std::cout << "QUery: " << qstr << std::endl << std::flush;);
|
|
return scheduleCommand(qstr);
|
|
}
|
|
|
|
int Database::removeArrayRow(const std::string & name,
|
|
const std::string & id,
|
|
const std::vector<int> & key)
|
|
{
|
|
/// Not sure we need this one yet, so lets no bother for now ;)
|
|
return -1;
|
|
}
|
|
#endif // 0
|
|
|
|
// General functions for handling queries at the low level.
|
|
|
|
void Database::queryResult(ExecStatusType status)
|
|
{
|
|
if (!m_queryInProgress || pendingQueries.empty()) {
|
|
log(ERROR, "Got database result when no query was pending.");
|
|
return;
|
|
}
|
|
DatabaseQuery & q = pendingQueries.front();
|
|
if (q.second == PGRES_EMPTY_QUERY) {
|
|
log(ERROR, "Got database result which is already done.");
|
|
return;
|
|
}
|
|
if (q.second == status) {
|
|
debug(std::cout << "Query status ok" << std::endl << std::flush;);
|
|
// Mark this query as done
|
|
q.second = PGRES_EMPTY_QUERY;
|
|
} else {
|
|
log(ERROR, "Database error from async query");
|
|
std::cerr << "Query error in : " << q.first << std::endl << std::flush;
|
|
reportError();
|
|
q.second = PGRES_EMPTY_QUERY;
|
|
}
|
|
}
|
|
|
|
void Database::queryComplete()
|
|
{
|
|
if (!m_queryInProgress || pendingQueries.empty()) {
|
|
log(ERROR, "Got database query complete when no query was pending");
|
|
return;
|
|
}
|
|
DatabaseQuery & q = pendingQueries.front();
|
|
if (q.second != PGRES_EMPTY_QUERY) {
|
|
abort();
|
|
log(ERROR, "Got database query complete when query was not done");
|
|
return;
|
|
}
|
|
debug(std::cout << "Query complete" << std::endl << std::flush;);
|
|
pendingQueries.pop_front();
|
|
m_queryInProgress = false;
|
|
}
|
|
|
|
int Database::launchNewQuery()
|
|
{
|
|
if (m_connection == 0) {
|
|
log(ERROR, "Can't launch new query while database is offline.");
|
|
return -1;
|
|
}
|
|
if (m_queryInProgress) {
|
|
log(ERROR, "Launching new query when query is in progress");
|
|
return -1;
|
|
}
|
|
if (pendingQueries.empty()) {
|
|
debug(std::cout << "No queries to launch" << std::endl << std::flush;);
|
|
return -1;
|
|
}
|
|
debug(std::cout << pendingQueries.size() << " queries pending"
|
|
<< std::endl << std::flush;);
|
|
DatabaseQuery & q = pendingQueries.front();
|
|
debug(std::cout << "Launching async query: " << q.first
|
|
<< std::endl << std::flush;);
|
|
int status = PQsendQuery(m_connection, q.first.c_str());
|
|
if (!status) {
|
|
log(ERROR, "Database query error when launching.");
|
|
reportError();
|
|
return -1;
|
|
} else {
|
|
m_queryInProgress = true;
|
|
PQflush(m_connection);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int Database::scheduleCommand(const std::string & query)
|
|
{
|
|
pendingQueries.push_back(std::make_pair(query, PGRES_COMMAND_OK));
|
|
if (!m_queryInProgress) {
|
|
debug(std::cout << "Query: " << query << " launched"
|
|
<< std::endl << std::flush;);
|
|
return launchNewQuery();
|
|
} else {
|
|
debug(std::cout << "Query: " << query << " scheduled"
|
|
<< std::endl << std::flush;);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int Database::clearPendingQuery()
|
|
{
|
|
if (!m_queryInProgress) {
|
|
return 0;
|
|
}
|
|
|
|
assert(!pendingQueries.empty());
|
|
debug(std::cout << "Clearing a pending query" << std::endl << std::flush;);
|
|
|
|
DatabaseQuery & q = pendingQueries.front();
|
|
if (q.second == PGRES_COMMAND_OK) {
|
|
m_queryInProgress = false;
|
|
pendingQueries.pop_front();
|
|
return commandOk();
|
|
} else {
|
|
log(ERROR, "Pending query wants unknown status");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int Database::runMaintainance(int command)
|
|
{
|
|
// VACUUM and REINDEX tables from a common store
|
|
if ((command & MAINTAIN_REINDEX) == MAINTAIN_REINDEX) {
|
|
std::string query("REINDEX TABLE ");
|
|
TableSet::const_iterator Iend = allTables.end();
|
|
for (TableSet::const_iterator I = allTables.begin(); I != Iend; ++I) {
|
|
scheduleCommand(query + *I);
|
|
}
|
|
}
|
|
if ((command & MAINTAIN_VACUUM) == MAINTAIN_VACUUM) {
|
|
std::string query("VACUUM ");
|
|
if ((command & MAINTAIN_VACUUM_ANALYZE) == MAINTAIN_VACUUM_ANALYZE) {
|
|
query += "ANALYZE ";
|
|
}
|
|
if ((command & MAINTAIN_VACUUM_FULL) == MAINTAIN_VACUUM_FULL) {
|
|
query += "FULL ";
|
|
}
|
|
TableSet::const_iterator Iend = allTables.end();
|
|
for(TableSet::const_iterator I = allTables.begin(); I != Iend; ++I) {
|
|
scheduleCommand(query + *I);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const char * DatabaseResult::field(const char * column, int row) const
|
|
{
|
|
int col_num = PQfnumber(m_res, column);
|
|
if (col_num == -1) {
|
|
return "";
|
|
}
|
|
return PQgetvalue(m_res, row, col_num);
|
|
}
|
|
|
|
const char * DatabaseResult::const_iterator::column(const char * column) const
|
|
{
|
|
int col_num = PQfnumber(m_dr.m_res, column);
|
|
if (col_num == -1) {
|
|
return "";
|
|
}
|
|
return PQgetvalue(m_dr.m_res, m_row, col_num);
|
|
}
|
|
|
|
void DatabaseResult::const_iterator::readColumn(const char * column,
|
|
int & val) const
|
|
{
|
|
int col_num = PQfnumber(m_dr.m_res, column);
|
|
if (col_num == -1) {
|
|
return;
|
|
}
|
|
const char * v = PQgetvalue(m_dr.m_res, m_row, col_num);
|
|
val = strtol(v, 0, 10);
|
|
}
|
|
|
|
void DatabaseResult::const_iterator::readColumn(const char * column,
|
|
float & val) const
|
|
{
|
|
int col_num = PQfnumber(m_dr.m_res, column);
|
|
if (col_num == -1) {
|
|
return;
|
|
}
|
|
const char * v = PQgetvalue(m_dr.m_res, m_row, col_num);
|
|
val = strtof(v, 0);
|
|
}
|
|
|
|
void DatabaseResult::const_iterator::readColumn(const char * column,
|
|
double & val) const
|
|
{
|
|
int col_num = PQfnumber(m_dr.m_res, column);
|
|
if (col_num == -1) {
|
|
return;
|
|
}
|
|
const char * v = PQgetvalue(m_dr.m_res, m_row, col_num);
|
|
val = strtod(v, 0);
|
|
}
|
|
|
|
void DatabaseResult::const_iterator::readColumn(const char * column,
|
|
std::string & val) const
|
|
{
|
|
int col_num = PQfnumber(m_dr.m_res, column);
|
|
if (col_num == -1) {
|
|
return;
|
|
}
|
|
const char * v = PQgetvalue(m_dr.m_res, m_row, col_num);
|
|
val = v;
|
|
}
|
|
|
|
void DatabaseResult::const_iterator::readColumn(const char * column,
|
|
MapType & val) const
|
|
{
|
|
int col_num = PQfnumber(m_dr.m_res, column);
|
|
if (col_num == -1) {
|
|
return;
|
|
}
|
|
const char * v = PQgetvalue(m_dr.m_res, m_row, col_num);
|
|
Database::instance()->decodeMessage(v, val);
|
|
}
|