public void connect(String fileName, String tableName) throws DAOException {
try {
c = ConnectionHelper.getConnection(fileName);
Statement s = c.createStatement();
s.execute(
"CREATE TABLE IF NOT EXISTS "
+ tableName
+ " ("
+ " id INTEGER, "
+ " numProcessed INTEGER, "
+ " totalToProcess INTEGER, "
+ " startUp INTEGER, "
+ " runTime INTEGER, "
+ " shutDown INTEGER "
+ ")");
s.execute("DELETE FROM " + tableName);
} catch (SQLException e) {
e.printStackTrace();
throw new DAOException(e);
}
}
private void execute(
boolean script, boolean export, Writer fileOutput, Statement statement, final String sql)
throws IOException, SQLException {
final SqlExceptionHelper sqlExceptionHelper = new SqlExceptionHelper();
String formatted = formatter.format(sql);
if (delimiter != null) formatted += delimiter;
if (script) System.out.println(formatted);
LOG.debug(formatted);
if (outputFile != null) {
fileOutput.write(formatted + "\n");
}
if (export) {
statement.executeUpdate(sql);
try {
SQLWarning warnings = statement.getWarnings();
if (warnings != null) {
sqlExceptionHelper.logAndClearWarnings(connectionHelper.getConnection());
}
} catch (SQLException sqle) {
LOG.unableToLogSqlWarnings(sqle);
}
}
}
public DatabaseExporter(ConnectionHelper connectionHelper, SqlExceptionHelper sqlExceptionHelper)
throws SQLException {
this.connectionHelper = connectionHelper;
this.sqlExceptionHelper = sqlExceptionHelper;
connectionHelper.prepare(false); // CUSTOM: changed auto-commit flag to false
connection = connectionHelper.getConnection();
statement = connection.createStatement();
}
/**
* return the first connection available that refers to this table by moving up to the last
* Package instance that hold this table and finding the connection linked to it
*
* @param metadataTable
* @return
*/
public static Connection getFirstConnection(MetadataTable metadataTable) {
assert metadataTable != null;
Connection connection = null;
Namespace namespace = metadataTable.getNamespace();
// for the file connection
if (namespace != null && namespace instanceof RecordFile) {
return ConnectionHelper.getConnection((RecordFile) namespace);
}
// for the mdm connection
if (namespace != null && namespace instanceof TdXmlSchema) {
return ConnectionHelper.getConnection((Package) namespace);
}
if (namespace != null) {
Package thePackage = SwitchHelpers.PACKAGE_SWITCH.doSwitch(namespace);
if (thePackage != null) {
connection = getFirstPackageConnection(thePackage);
}
} // else class is not linked to any package
return connection;
}
public InventoryRecord readItem() throws Exception {
Connection connection = null;
PreparedStatement statement = null;
ResultSet rs = null;
try {
connection = ConnectionHelper.getConnection(dataSource);
statement = connection.prepareStatement(ConnectionHelper.SELECT_INVENTORY);
statement.setInt(1, 1);
rs = statement.executeQuery();
int quantity = -1;
while (rs.next()) {
quantity = rs.getInt("quantity");
}
// If we run out of items we are done so stop processing orders
if (quantity < 1) {
return null;
}
// decrement the quantity and update the table
InventoryRecord ir = new InventoryRecord(1, --quantity);
decrementInventory(connection, ir);
readerIndex++;
this.inventoryCheckpoint.setInventoryCount(readerIndex);
return new InventoryRecord(1, 1); // Every order only orders 1 item
} catch (SQLException e) {
throw e;
} finally {
ConnectionHelper.cleanupConnection(connection, rs, statement);
}
}