Examples with StartupException org.olat.core.logging.StartupException used on opensource projects

Example 26 with StartupException

use of org.olat.core.logging.StartupException in project openolat by klemens.

the class InnoDBAwareDriverManagerDataSource method init.

@Override
public void init() {
    // test makes only sense if mysql with innoDb tables are used
    if (!dbVendor.contains("mysql")) {
        return;
    }
    Statement statement = null;
    try {
        log.audit("Checking whether mysql tables support transactions based on innoDB tab...");
        statement = this.getConnection().createStatement();
        statement.execute("show create table o_plock;");
        ResultSet result = statement.getResultSet();
        result.first();
        String createTableCommand = result.getString("Create Table");
        if (createTableCommand.contains("InnoDB")) {
            log.audit("Your mysql tables look like they support transactions, fine!");
        } else {
            throw new StartupException("Your tables do not support transactions based on innoDB tables. Check your database server and enable innoDB engine! Your table currently runs: " + createTableCommand);
        }
    } catch (SQLException e) {
        if (e.getMessage().contains("doesn't exist")) {
            log.audit("o_plock table does not yet exist, will check transaction support on next startup");
        } else {
            throw new StartupException("Could not execute db statement.", e);
        }
    } finally {
        try {
            if (statement != null) {
                statement.close();
            }
        } catch (SQLException e2) {
            log.warn("Could not close sql statement", e2);
            throw new StartupException("Could not close sql statements.", e2);
        }
    }
}