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MySqlDatastore.cpp Go to the documentation of this file. /* ****************************************************************** ** ** OpenSees - Open System for Earthquake Engineering Simulation ** ** Pacific Earthquake Engineering Research Center ** ** ** ** ** ** (C) Copyright 2002, The Regents of the University of California ** ** All Rights Reserved. ** ** ** ** Commercial use of this program without express permission of the ** ** University of California, Berkeley, is strictly prohibited. See ** ** file 'COPYRIGHT' in main directory for information on usage and ** ** redistribution, and for a DISCLAIMER OF ALL WARRANTIES. ** ** ** ** Developed by: ** ** Frank McKenna (fmckenna@ce.berkeley.edu) ** ** Gregory L. Fenves (fenves@ce.berkeley.edu) ** ** Filip C. Filippou (filippou@ce.berkeley.edu) ** ** ** ** ****************************************************************** */ // $Revision: 1.7 $ // $Date: 2005/11/07 21:34:25 $ // $Source: /usr/local/cvs/OpenSees/SRC/database/MySqlDatastore.cpp,v $ #include <MySqlDatastore.h> #include <Vector.h> #include <Matrix.h> #include <ID.h> // #include <mysqld_error.h> .. use the following #define instead #define ER_TABLE_EXISTS_ERROR 1050 #define MAX_BLOB_SIZE 16777215 MySqlDatastore::MySqlDatastore(const char *projectName, Domain &theDomain, FEM_ObjectBroker &theObjectBroker, int run) :FE_Datastore(theDomain, theObjectBroker), dbTag(0), dbRun(run), connection(true), query(0), sizeQuery(0), sizeColumnString(0) { // initialise the mysql structure mysql_init(&mysql); // connect to the server if (mysql_real_connect(&mysql, NULL, NULL, NULL, NULL, 0, "/tmp/mysql.sock", 0) == NULL) { opserr << "MySqlDatastore::MySqlDatastore() - could not connect to server\n"; opserr << mysql_error(&mysql) << endln; connection = false; } else { // link to the database, if (mysql_select_db(&mysql, projectName) != 0) { // if no database exists, try creating one if (this->createOpenSeesDatabase(projectName) != 0) { connection = false; mysql_close(&mysql); opserr << "MySqlDatastore::MySqlDatastore() - could not open the database\n"; opserr << mysql_error(&mysql) << endln; } } } } MySqlDatastore::MySqlDatastore(const char *databaseName, const char *host, const char *user, const char *passwd, unsigned int port, const char *socket, unsigned int clientFlag, Domain &theDomain, FEM_ObjectBroker &theObjectBroker, int run) :FE_Datastore(theDomain, theObjectBroker), dbTag(0), dbRun(run), connection(true), query(0), sizeQuery(0), sizeColumnString(0) { // initialise the mysql structure mysql_init(&mysql); // connect to the server & database if (mysql_real_connect(&mysql, host, user, passwd, databaseName, port, socket, clientFlag) == NULL) { // connect to the server & see if can link to database, or create a new one if one does not exist if (mysql_real_connect(&mysql, host, user, passwd, NULL, port, socket, clientFlag) == NULL) { opserr << "MySqlDatastore::MySqlDatastore() - could not connect to server\n"; opserr << mysql_error(&mysql) << endln; connection = false; } else { // link to the database, if (mysql_select_db(&mysql, databaseName) != 0) { // if no database exists, try creating one if (this->createOpenSeesDatabase(databaseName) != 0) { connection = false; mysql_close(&mysql); opserr << "MySqlDatastore::MySqlDatastore() - could not open the database\n"; opserr << mysql_error(&mysql) << endln; } } } } } MySqlDatastore::~MySqlDatastore() { if (connection == true) mysql_close(&mysql); if (query != 0) delete [] query; } int MySqlDatastore::sendMsg(int dataTag, int commitTag, const Message &, ChannelAddress *theAddress) { opserr << "MySqlDatastore::sendMsg() - not yet implemented\n"; return -1; } int MySqlDatastore::recvMsg(int dataTag, int commitTag, Message &, ChannelAddress *theAddress) { opserr << "MySqlDatastore::recvMsg() - not yet implemented\n"; return -1; } int MySqlDatastore::sendMatrix(int dbTag, int commitTag, const Matrix &theMatrix, ChannelAddress *theAddress) { // check that we have a connection if (connection == false) return -1; // check that the data will fit, MySQL has a limit on blob sizes int sizeData = theMatrix.dataSize * sizeof(double); if (sizeData > MAX_BLOB_SIZE) { opserr << "MySqlDatastore::sendMatrix - vector too big to send to MySQL databse, enlarge BLOBS!"; return -2; } // check that query string is big enough to hold the data, if not enlarge if ((query == 0) || ((sizeData*2 + 254) > sizeQuery)) { // *2 for extra space MySQL may need if (query != 0) delete [] query; sizeQuery = 2 * sizeData + 254; // 254 for the INSERT INTO Vec... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::sendMatrix - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // // to send the data the database we do the following: // 1. try to INSERT the data into the database // 2. if INSERT fails we have to reformulate the query to UPDATE the existing data, // as the row given by dbTag, commitTag and vectorSize may already already exist. // // form the INSERT query sprintf(query, "INSERT INTO Matrices VALUES (%d, %d, %d,'", dbTag, commitTag, theMatrix.dataSize); char *p = query + strlen(query); p += mysql_escape_string(p, (char *)theMatrix.data, sizeData); // add vector values in binary form strcpy(p, "')"); // execute the INSERT query if (mysql_query(&mysql, query) != 0) { // // if INSERT fails we reformulate query and try an UPDATE // // formulate the query sprintf(query, "UPDATE Matrices SET data='"); char *p = query + strlen(query); p += mysql_escape_string(p, (char *)theMatrix.data, sizeData); sprintf(p, "' WHERE dbTag=%d AND commitTag=%d AND size=%d", dbTag, commitTag, theMatrix.dataSize); // invoke the query on the database if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::sendMatrix() - failed to send the Matrix to MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } } return 0; } int MySqlDatastore::recvMatrix(int dbTag, int commitTag, Matrix &theMatrix, ChannelAddress *theAddress) { // check that we have a connection if (connection == false) return -1; // check that query string is big enough to hold the data, if not enlarge int sizeData = theMatrix.dataSize * sizeof(double); if ((query == 0) || ((sizeData*2 + 256) > sizeQuery)) { // *2 for extra space mysql needs if (query != 0) delete [] query; sizeQuery = 2 * sizeData + 256; // 256 for the SLECECT data FROM ... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::recvMatrix - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // // to receive the data the database we do the following: // 1. use SELECT to receive the data from the database // 2. fetch the results from the server and copy to the Matrices data area // 3. clean up the MYSQL_RES datastructure // // NOTE: probably using a malloc() and free() under the covers for this, could be // very expensive .. IS THERE ANOTHER WAY TO DO THIS, i.e. SAVE A MYSQL_RES FOR // NUMEROUS USES?? // form the SELECT query sprintf(query, "Select data FROM Matrices WHERE dbTag=%d AND commitTag=%d AND size=%d", dbTag, commitTag, theMatrix.dataSize); // execute the SELECT query if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::recvMatrix() - failed to receive vector from MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } // fetch the results from the database MYSQL_RES *results; MYSQL_ROW row; results = mysql_store_result(&mysql); if (results == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::recvMatrix - no data in database for Matrix with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; return -4; } row = mysql_fetch_row(results); if (row == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::recvMatrix - no data in database for Matrix with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; mysql_free_result(results); return -5; } // place the results into the vectors double array double *data = (double *)row[0]; for (int i=0; i<theMatrix.dataSize; i++) theMatrix.data[i] = data[i]; // free the MYSQL_RES structure mysql_free_result(results); return 0; } int MySqlDatastore::sendVector(int dbTag, int commitTag, const Vector &theVector, ChannelAddress *theAddress) { // check that we have a connection if (connection == false) return -1; // check that the data will fit, MySQL has a limit on blob sizes int sizeData = theVector.sz * sizeof(double); if (sizeData > MAX_BLOB_SIZE) { opserr << "MySqlDatastore::sendVector - vector too big to send to MySQL databse, enlarge BLOBS!"; return -2; } // check that query string is big enough to hold the data, if not enlarge if ((query == 0) || ((sizeData*2 + 254) > sizeQuery)) { // *2 for extra space MySQL may need if (query != 0) delete [] query; sizeQuery = 2 * sizeData + 254; // 254 for the INSERT INTO Vec... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::sendVector - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // // to send the data the database we do the following: // 1. try to INSERT the data into the database // 2. if INSERT fails we have to reformulate the query to UPDATE the existing data, // as the row given by dbTag, commitTag and vectorSize may already already exist. // // form the INSERT query sprintf(query, "INSERT INTO Vectors VALUES (%d, %d, %d,'", dbTag, commitTag, theVector.sz); char *p = query + strlen(query); p += mysql_escape_string(p, (char *)theVector.theData, sizeData); // add vector values in binary form strcpy(p, "')"); // execute the INSERT query if (mysql_query(&mysql, query) != 0) { // // if INSERT fails we reformulate query and try an UPDATE // // formulate the query sprintf(query, "UPDATE Vectors SET data='"); char *p = query + strlen(query); p += mysql_escape_string(p, (char *)theVector.theData, sizeData); sprintf(p, "' WHERE dbTag=%d AND commitTag=%d AND size=%d", dbTag, commitTag, theVector.sz); // invoke the query on the database if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::sendVector() - failed to send the Vector to MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } } return 0; } int MySqlDatastore::recvVector(int dbTag, int commitTag, Vector &theVector, ChannelAddress *theAddress) { // check that we have a connection if (connection == false) return -1; // check that query string is big enough to hold the data, if not enlarge int sizeData = theVector.sz * sizeof(double); if ((query == 0) || ((sizeData*2 + 256) > sizeQuery)) { // *2 for extra space mysql needs if (query != 0) delete [] query; sizeQuery = 2 * sizeData + 256; // 256 for the SLECECT data FROM ... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::recvVector - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // // to receive the data the database we do the following: // 1. use SELECT to receive the data from the database // 2. fetch the results from the server and copy to the Vectors data area // 3. clean up the MYSQL_RES datastructure // // NOTE: probably using a malloc() and free() under the covers for this, could be // very expensive .. IS THERE ANOTHER WAY TO DO THIS, i.e. SAVE A MYSQL_RES FOR // NUMEROUS USES?? // form the SELECT query sprintf(query, "Select data FROM Vectors WHERE dbTag=%d AND commitTag=%d AND size=%d", dbTag, commitTag, theVector.sz); // execute the SELECT query if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::recvVector() - failed to receive vector from MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } // fetch the results from the database MYSQL_RES *results; MYSQL_ROW row; results = mysql_store_result(&mysql); if (results == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::recvVector - no data in database for Vector with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; return -4; } row = mysql_fetch_row(results); if (row == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::recvVector - no data in database for Vector with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; mysql_free_result(results); return -5; } // place the results into the vectors double array double *data = (double *)row[0]; for (int i=0; i<theVector.sz; i++) theVector.theData[i] = data[i]; // free the MYSQL_RES structure mysql_free_result(results); return 0; } int MySqlDatastore::sendID(int dbTag, int commitTag, const ID &theID, ChannelAddress *theAddress) { // check that we have a connection if (connection == false) return -1; // check that the data will fit, MySQL has a limit on blob sizes int sizeData = theID.sz * sizeof(int); if (sizeData > MAX_BLOB_SIZE) { opserr << "MySqlDatastore::sendID - vector too big to send to MySQL databse, enlarge BLOBS!"; return -2; } // check that query string is big enough to hold the data, if not enlarge if ((query == 0) || ((sizeData*2 + 254) > sizeQuery)) { // *2 for extra space MySQL may need if (query != 0) delete [] query; sizeQuery = 2 * sizeData + 254; // 254 for the INSERT INTO Vec... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::sendID - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // // to send the data the database we do the following: // 1. try to INSERT the data into the database // 2. if INSERT fails we have to reformulate the query to UPDATE the existing data, // as the row given by dbTag, commitTag and vectorSize may already already exist. // // form the INSERT query sprintf(query, "INSERT INTO IDs VALUES (%d, %d, %d,'", dbTag, commitTag, theID.sz); char *p = query + strlen(query); p += mysql_escape_string(p, (char *)theID.data, sizeData); // add vector values in binary form strcpy(p, "')"); // execute the INSERT query if (mysql_query(&mysql, query) != 0) { // // if INSERT fails we reformulate query and try an UPDATE // // formulate the query sprintf(query, "UPDATE IDs SET data='"); char *p = query + strlen(query); p += mysql_escape_string(p, (char *)theID.data, sizeData); sprintf(p, "' WHERE dbTag=%d AND commitTag=%d AND size=%d", dbTag, commitTag, theID.sz); // invoke the query on the database if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::sendID() - failed to send the ID to MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } } return 0; } int MySqlDatastore::recvID(int dbTag, int commitTag, ID &theID, ChannelAddress *theAddress) { // check that we have a connection if (connection == false) return -1; // check that query string is big enough to hold the data, if not enlarge int sizeData = theID.sz * sizeof(int); if ((query == 0) || ((sizeData*2 + 256) > sizeQuery)) { // *2 for extra space mysql needs if (query != 0) delete [] query; sizeQuery = 2 * sizeData + 256; // 256 for the SLECECT data FROM ... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::recvID - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // // to receive the data the database we do the following: // 1. use SELECT to receive the data from the database // 2. fetch the results from the server and copy to the IDs data area // 3. clean up the MYSQL_RES datastructure // // NOTE: probably using a malloc() and free() under the covers for this, could be // very expensive .. IS THERE ANOTHER WAY TO DO THIS, i.e. SAVE A MYSQL_RES FOR // NUMEROUS USES?? // form the SELECT query sprintf(query, "Select data FROM IDs WHERE dbTag=%d AND commitTag=%d AND size=%d", dbTag, commitTag, theID.sz); // execute the SELECT query if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::recvID() - failed to receive vector from MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } // fetch the results from the database MYSQL_RES *results; MYSQL_ROW row; results = mysql_store_result(&mysql); if (results == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::recvID - no data in database for ID with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; return -4; } row = mysql_fetch_row(results); if (row == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::recvID - no data in database for ID with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; mysql_free_result(results); return -5; } // place the results into the vectors double array int *data = (int *)row[0]; for (int i=0; i<theID.sz; i++) theID.data[i] = data[i]; // free the MYSQL_RES structure mysql_free_result(results); return 0; } int MySqlDatastore::createTable(const char *tableName, int numColumns, char *columns[]) { // check that we have a connection if (connection == false) return -1; // check that the query string can old the actual query, if not enlarge the string int requiredSize = 100 + strlen(tableName); // create table blah blah blah int sizeColumn = 0; for (int i=0; i<numColumns; i++) { sizeColumn += strlen(columns[i]) + 2; } if (sizeColumnString < sizeColumn) sizeColumnString = sizeColumn; requiredSize += sizeColumn + 18*numColumns; if (query == 0 || sizeQuery < requiredSize) { if (query != 0) delete [] query; query = new char[requiredSize]; sizeQuery = requiredSize; } // create the sql query char *p = query; int numChar = sprintf(query, "CREATE TABLE %s (dbRun INT NOT NULL, commitTag INT NOT NULL, ", tableName); p += numChar; for (int j=0; j<numColumns; j++) { numChar = sprintf(p, "%s DOUBLE NOT NULL, ", columns[j]); p += numChar; } sprintf(p, "PRIMARY KEY (dbRun, commitTag) )"); // execute the query if (mysql_query(&mysql, query) != 0) { if (mysql_errno(&mysql) != ER_TABLE_EXISTS_ERROR) { opserr << "MySqlDatastore::createTable() - failed to create the table in the database"; opserr << endln << mysql_error(&mysql) << endln; opserr << "SQL query: " << query << endln; return -3; } } return 0; } int MySqlDatastore::insertData(const char *tableName, char *columns[], int commitTag, const Vector &data) { // check that we have a connection if (connection == false) return -1; // check that query string is big enough to hold the data, if not enlarge int sizeData = 128 + strlen(tableName); if ((query == 0) || (sizeData > sizeQuery)) { // *2 for extra space mysql needs if (query != 0) delete [] query; sizeQuery = sizeData; // 256 for the SLECECT data FROM ... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::getData - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // form the insert query sprintf(query, "INSERT INTO %s VALUES (%d, %d ", tableName, dbRun, commitTag); char *p = query + strlen(query); for (int i=0; i<data.Size(); i++) p += sprintf(p, ", %f ", data(i)); strcpy(p, ")"); // execute the query if (mysql_query(&mysql, query) != 0) { // // if INSERT fails we reformulate query and try an UPDATE // // formulate the query sprintf(query, "UPDATE %s SET %s=%f", tableName, columns[0], data(0)); char *p = query + strlen(query); for (int i=1; i<data.Size(); i++) p += sprintf(p, ", %s=%f ", columns[i], data(i)); sprintf(p, " WHERE dbRun=%d AND commitTag=%d", dbTag, commitTag); // invoke the query on the database if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::insertData() - failed to send the data to MySQL database"; opserr << p; opserr << endln << mysql_error(&mysql) << endln; return -3; } } return 0; } int MySqlDatastore::getData(const char *tableName, char *columns[], int commitTag, Vector &data) { // check that we have a connection if (connection == false) return -1; // check that query string is big enough to hold the data, if not enlarge int sizeData = 128 + strlen(tableName); if ((query == 0) || (sizeData > sizeQuery)) { // *2 for extra space mysql needs if (query != 0) delete [] query; sizeQuery = sizeData; // 256 for the SLECECT data FROM ... blah blah query = new char [sizeQuery]; if (query == 0) { opserr << "MySqlDatastore::getData - out of memory creating query of size"; opserr << sizeQuery << endln; return -2; } } // to receive the data the database we do the following: // 1. use SELECT to receive the data from the database // 2. fetch the results from the server and copy to the Vectors data area // 3. clean up the MYSQL_RES datastructure // // NOTE: probably using a malloc() and free() under the covers for this, could be // very expensive .. IS THERE ANOTHER WAY TO DO THIS, i.e. SAVE A MYSQL_RES FOR // NUMEROUS USES?? // form the SELECT query sprintf(query, "Select * FROM %s WHERE dbRun=%d AND commitTag=%d", tableName, dbRun, commitTag); // execute the SELECT query if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::getData() - failed to receive vector from MySQL database"; opserr << endln << mysql_error(&mysql) << endln; return -3; } // fetch the results from the database MYSQL_RES *results; MYSQL_ROW row; results = mysql_store_result(&mysql); if (results == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::getData - no data in database for Vector with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; return -4; } row = mysql_fetch_row(results); if (row == NULL) { // no vector stored in db with these keys opserr << "MySqlDatastore::getData - no data in database for Vector with dbTag, cTag: "; opserr << dbTag << ", " << commitTag << endln; mysql_free_result(results); return -5; } // place the results into the vectors double array char *dataRes; for (int i=0; i<data.sz; i++) { dataRes = row[i+2]; data.theData[i] = atof(dataRes); } // free the MYSQL_RES structure mysql_free_result(results); return 0; } int MySqlDatastore::setDbRun(int run) { dbRun = run; return dbRun; } int MySqlDatastore::getDbRun(void) { return dbRun; } int MySqlDatastore::createOpenSeesDatabase(const char *projectName) { if (query == 0) { query = new char[512]; sizeQuery = 512; } // create the database sprintf(query, "CREATE DATABASE %s", projectName); if (this->execute(query) != 0) { opserr << "MySqlDatastore::createOpenSeesDatabase() - could not create the database\n"; return -1; } // link to the database, if (mysql_select_db(&mysql, projectName) != 0) { opserr << "MySqlDatastore::createOpenSeesDatabase() - could not set the database\n"; return -2; } // now create the tables in the database sprintf(query, "CREATE TABLE Messages ( dbTag INT NOT NULL, commitTag INT NOT NULL, size INT NOT NULL,\ data MEDIUMBLOB, PRIMARY KEY (dbTag, commitTag, size) )"); if (this->execute(query) != 0) { opserr << "MySqlDatastore::createOpenSeesDatabase() - could not create the Messagess table\n"; return -3; } sprintf(query, "CREATE TABLE Matrices ( dbTag INT NOT NULL, commitTag INT NOT NULL, size INT NOT NULL,\ data MEDIUMBLOB, PRIMARY KEY (dbTag, commitTag, size) )"); if (this->execute(query) != 0) { opserr << "MySqlDatastore::createOpenSeesDatabase() - could not create the Matricess table\n"; return -3; } sprintf(query, "CREATE TABLE Vectors ( dbTag INT NOT NULL, commitTag INT NOT NULL, size INT NOT NULL,\ data MEDIUMBLOB, PRIMARY KEY (dbTag, commitTag, size) )"); if (this->execute(query) != 0) { opserr << "MySqlDatastore::createOpenSeesDatabase() - could not create the Vectors table\n"; return -3; } sprintf(query, "CREATE TABLE IDs ( dbTag INT NOT NULL, commitTag INT NOT NULL, size INT NOT NULL,\ data MEDIUMBLOB, PRIMARY KEY (dbTag, commitTag, size) )"); if (this->execute(query) != 0) { opserr << "MySqlDatastore::createOpenSeesDatabase() - could not create the ID's table\n"; return -3; } // done return 0; } int MySqlDatastore::execute(const char *query) { if (mysql_query(&mysql, query) != 0) { opserr << "MySqlDatastore::execute() - could not execute command: " << query; opserr << endln << mysql_error(&mysql) << endln; return -1; } else return 0; } Generated on Mon Oct 23 15:05:00 2006 for OpenSees by  1.5.0

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