--- a/java/sql-dk/src/info/globalcode/sql/dk/DatabaseConnection.java Mon Mar 04 17:06:42 2019 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,192 +0,0 @@
-/**
- * SQL-DK
- * Copyright © 2013 František Kučera (frantovo.cz)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package info.globalcode.sql.dk;
-
-import static info.globalcode.sql.dk.jmx.ConnectionManagement.incrementCounter;
-import static info.globalcode.sql.dk.jmx.ConnectionManagement.resetCounter;
-import info.globalcode.sql.dk.batch.Batch;
-import info.globalcode.sql.dk.batch.BatchException;
-import info.globalcode.sql.dk.configuration.DatabaseDefinition;
-import info.globalcode.sql.dk.configuration.Loader;
-import info.globalcode.sql.dk.configuration.Properties;
-import info.globalcode.sql.dk.formatting.ColumnsHeader;
-import info.globalcode.sql.dk.formatting.Formatter;
-import info.globalcode.sql.dk.jmx.ConnectionManagement;
-import info.globalcode.sql.dk.jmx.ConnectionManagement.COUNTER;
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.SQLWarning;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * Represents connected database. Is derived from {@linkplain DatabaseDefinition}.
- * Wraps {@linkplain Connection}.
- *
- * Is responsible for executing {@linkplain SQLCommand} and passing results to the
- * {@linkplain Formatter}.
- *
- * @author Ing. František Kučera (frantovo.cz)
- */
-public class DatabaseConnection implements AutoCloseable {
-
- private static final Logger log = Logger.getLogger(DatabaseConnection.class.getName());
- public static final String JDBC_PROPERTY_USER = "user";
- public static final String JDBC_PROPERTY_PASSWORD = "password";
- private final DatabaseDefinition databaseDefinition;
- private final Connection connection;
- private final Properties properties;
- /**
- * Could be null = JMX is disabled → must check, see functions in
- * {@linkplain ConnectionManagement}
- */
- private final ConnectionManagement connectionMBean;
-
- /**
- *
- * @param databaseDefinition DB url, name, password etc.
- * @param properties additional properties from CLI
- * @param connectionMBean JMX management bean | null = disabled JMX reporting
- * @throws SQLException
- */
- public DatabaseConnection(DatabaseDefinition databaseDefinition, Properties properties, ConnectionManagement connectionMBean) throws SQLException {
- this.databaseDefinition = databaseDefinition;
- this.properties = properties;
- this.connectionMBean = connectionMBean;
- this.connection = Loader.jdbcConnect(databaseDefinition, properties);
- }
-
- public void executeQuery(SQLCommand sqlCommand, Formatter formatter) throws SQLException {
- formatter.writeStartBatch();
- formatter.writeStartDatabase(databaseDefinition);
- formatter.writeStartStatement();
- formatter.writeQuery(sqlCommand.getQuery());
- formatter.writeParameters(sqlCommand.getParameters());
- processCommand(sqlCommand, formatter);
- formatter.writeEndStatement();
- formatter.writeEndDatabase();
- formatter.writeEndBatch();
- }
-
- public void executeBatch(Batch batch, Formatter formatter) throws SQLException, BatchException {
- formatter.writeStartBatch();
- formatter.writeStartDatabase(databaseDefinition);
- while (batch.hasNext()) {
- SQLCommand sqlCommand = batch.next();
- formatter.writeStartStatement();
- formatter.writeQuery(sqlCommand.getQuery());
- formatter.writeParameters(sqlCommand.getParameters());
- processCommand(sqlCommand, formatter);
- formatter.writeEndStatement();
- }
- formatter.writeEndDatabase();
- formatter.writeEndBatch();
- }
-
- private void processCommand(SQLCommand sqlCommand, Formatter formatter) throws SQLException {
- incrementCounter(connectionMBean, COUNTER.COMMAND);
- resetCounter(connectionMBean, COUNTER.RECORD_CURRENT);
-
- try (PreparedStatement ps = sqlCommand.prepareStatement(connection)) {
- log.log(Level.FINE, "Statement prepared");
- sqlCommand.parametrize(ps);
-
- boolean isRS = ps.execute();
- log.log(Level.FINE, "Statement executed");
- if (isRS) {
- try (ResultSet rs = ps.getResultSet()) {
- processResultSet(rs, formatter);
- }
- } else {
- processUpdateResult(ps, formatter);
- }
- logWarnings(ps);
-
- while (ps.getMoreResults() || ps.getUpdateCount() > -1) {
- ResultSet rs = ps.getResultSet();
- if (rs == null) {
- processUpdateResult(ps, formatter);
- } else {
- processResultSet(rs, formatter);
- rs.close();
- }
- logWarnings(ps);
- }
- }
- }
-
- private void processUpdateResult(PreparedStatement ps, Formatter formatter) throws SQLException {
- formatter.writeUpdatesResult(ps.getUpdateCount());
- }
-
- private void processResultSet(ResultSet rs, Formatter formatter) throws SQLException {
- formatter.writeStartResultSet(new ColumnsHeader(rs.getMetaData()));
-
- int columnCount = rs.getMetaData().getColumnCount();
-
- while (rs.next()) {
- incrementCounter(connectionMBean, COUNTER.RECORD_CURRENT);
- incrementCounter(connectionMBean, COUNTER.RECORD_TOTAL);
-
- formatter.writeStartRow();
-
- for (int i = 1; i <= columnCount; i++) {
- formatter.writeColumnValue(rs.getObject(i));
- }
-
- formatter.writeEndRow();
- }
-
- formatter.writeEndResultSet();
- }
-
- private void logWarnings(PreparedStatement ps) throws SQLException {
- SQLWarning w = ps.getWarnings();
- while (w != null) {
- log.log(Level.WARNING, "SQL: {0}", w.getLocalizedMessage());
- w = w.getNextWarning();
- }
- ps.clearWarnings();
- }
-
- /**
- * Tests if this connection is live.
- *
- * @return true if test was successful
- * @throws SQLException if test fails
- */
- public boolean test() throws SQLException {
- connection.getAutoCommit();
- return true;
- }
-
- public String getProductName() throws SQLException {
- return connection.getMetaData().getDatabaseProductName();
- }
-
- public String getProductVersion() throws SQLException {
- return connection.getMetaData().getDatabaseProductVersion();
- }
-
- @Override
- public void close() throws SQLException {
- connection.close();
- }
-}