Examples with DatabaseConnectionPortObjectSpec org.knime.core.node.port.database.DatabaseConnectionPortObjectSpec used on opensource projects

Example 11 with DatabaseConnectionPortObjectSpec

use of org.knime.core.node.port.database.DatabaseConnectionPortObjectSpec in project knime-core by knime.

the class JDBCConnectorNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected PortObject[] execute(final PortObject[] inObjects, final ExecutionContext exec) throws Exception {
    DatabaseConnectionSettings s = new DatabaseConnectionSettings(m_settings);
    // new behavior since 2.10
    s.setRowIdsStartWithZero(true);
    DatabaseConnectionPortObject dbPort = new DatabaseConnectionPortObject(new DatabaseConnectionPortObjectSpec(s));
    try {
        dbPort.getConnectionSettings(getCredentialsProvider()).execute(getCredentialsProvider(), conn -> {
            return conn != null;
        });
    } catch (SQLException ex) {
        Throwable cause = ExceptionUtils.getRootCause(ex);
        if (cause == null) {
            cause = ex;
        }
        if (cause instanceof ClassNotFoundException) {
            cause = new Exception("Could not find driver class: " + cause.getMessage());
        }
        throw new SQLException("Could not create connection to database: " + cause.getMessage(), ex);
    }
    return new PortObject[] { dbPort };
}

Example 12 with DatabaseConnectionPortObjectSpec

use of org.knime.core.node.port.database.DatabaseConnectionPortObjectSpec in project knime-core by knime.

the class DBTableCreatorNodeModel method configure.

/**
 * {@inheritDoc}
 */
@Override
protected PortObjectSpec[] configure(final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    if (inSpecs[0] == null && !(inSpecs[0] instanceof DatabaseConnectionPortObjectSpec)) {
        throw new InvalidSettingsException("No valid database connection available.");
    }
    final DatabaseConnectionPortObjectSpec dbSpec = (DatabaseConnectionPortObjectSpec) inSpecs[0];
    m_config.setTableSpec((DataTableSpec) inSpecs[1]);
    final boolean isColumnsEmpty = m_config.getColumns().isEmpty();
    if (m_config.getTableSpec() != null && (m_config.useDynamicSettings() || isColumnsEmpty)) {
        m_config.loadColumnSettingsFromTableSpec(m_config.getTableSpec());
        m_config.updateKeysWithDynamicSettings();
    }
    if (m_config.getTableSpec() == null && m_config.useDynamicSettings()) {
        throw new InvalidSettingsException("Dynamic settings enabled but no input table available.");
    }
    if (isColumnsEmpty) {
        throw new InvalidSettingsException("At least one column must be defined.");
    }
    final DatabaseConnectionSettings conn = dbSpec.getConnectionSettings(getCredentialsProvider());
    final DBTableCreator tableCreator = conn.getUtility().getTableCreator(m_config.getSchema(), getTableName(), m_config.isTempTable());
    final List<DBColumn> columns = m_config.getColumns();
    final List<DBKey> keys = m_config.getKeys();
    try {
        tableCreator.validateSettings(m_config.ifNotExists(), columns.toArray(new DBColumn[columns.size()]), keys.toArray(new DBKey[keys.size()]), m_config.getAdditionalOptions());
    } catch (Exception e) {
        throw new InvalidSettingsException(e.getMessage());
    }
    pushFlowVariables(tableCreator.getSchema(), tableCreator.getTableName());
    return new PortObjectSpec[] { dbSpec };
}

Example 13 with DatabaseConnectionPortObjectSpec

use of org.knime.core.node.port.database.DatabaseConnectionPortObjectSpec in project knime-core by knime.

the class DBReaderDialogPane method loadSettingsFrom.

/**
 * {@inheritDoc}
 */
@Override
protected void loadSettingsFrom(final NodeSettingsRO settings, final PortObjectSpec[] specs) throws NotConfigurableException {
    if (m_showConnectionPanel) {
        m_connectionPane.loadSettingsFrom(settings, specs, getCredentialsProvider());
    }
    DatabaseQueryConnectionSettings s = new DatabaseQueryConnectionSettings();
    try {
        s.loadValidatedConnection(settings, getCredentialsProvider());
    } catch (InvalidSettingsException ex) {
    // use settings as they are
    }
    // statement
    String statement = s.getQuery();
    m_statmnt.setText(statement == null ? "SELECT * FROM " + DatabaseQueryConnectionSettings.TABLE_PLACEHOLDER : statement);
    // select the table placeholder statement for easier replacements
    selectPlaceHolder(m_statmnt, DatabaseQueryConnectionSettings.TABLE_PLACEHOLDER);
    // update list of flow/workflow variables
    m_listModelVars.removeAllElements();
    for (Map.Entry<String, FlowVariable> e : getAvailableFlowVariables().entrySet()) {
        m_listModelVars.addElement(e.getValue());
    }
    // read execute without configure checkbox
    if (runWithoutConfigure()) {
        m_configureBox.setSelected(!s.getValidateQuery());
    }
    m_upstreamConnectionSettings = null;
    for (PortObjectSpec pos : specs) {
        if (pos instanceof DatabaseConnectionPortObjectSpec) {
            try {
                m_upstreamConnectionSettings = ((DatabaseConnectionPortObjectSpec) pos).getConnectionSettings(getCredentialsProvider());
            } catch (InvalidSettingsException ex) {
                LOGGER.warn("Could not load database connection from upstream node: " + ex.getMessage(), ex);
            }
        }
    }
    if (m_upstreamConnectionSettings != null || !m_showConnectionPanel) {
        m_connectionPane.setVisible(false);
    } else {
        m_connectionPane.setVisible(true);
    }
}