+
−/*
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− * SPDX-License-Identifier: MPL-2.0
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− *
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− * This Source Code Form is subject to the terms of the Mozilla Public
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− * License, v. 2.0.  If a copy of the MPL was not distributed with this
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− * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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− *
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− * Copyright 2024 MonetDB Foundation;
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− * Copyright August 2008 - 2023 MonetDB B.V.;
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− * Copyright 1997 - July 2008 CWI.
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− */
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−
+
−import java.sql.*;
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−import java.io.*;
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−
+
−/**
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− * This simple example somewhat emulates the mclient command. However in
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− * it's simpleness it only supports SQL queries which entirely are on one line.
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− *
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− * This program reads a file line by line, and feeds the line into a running
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− * Mserver5 on the localhost. Upon error, the error is reported and the program
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− * continues reading and executing lines.
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− * A very lousy way of implementing options is used to somewhat configure the
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− * behaviour of the program in order to be a bit more verbose or commit after
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− * each (sucessfully) executed line.
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− *
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− * The program uses a debuglog in which the exact conversation between the
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− * JDBC driver and Mserver is reported. The log file is put in the current
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− * working directory and names like monet_[unix timestamp].log
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− *
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− * @author Fabian Groffen
+
− */
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−
+
−public class SQLImport {
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−	public static void main(String[] args) throws Exception {
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−		if (args.length < 1) {
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−			System.out.println("synopsis: java SQLImport filename [autocommit] [verbose]");
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−			System.exit(-1);
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−		}
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−
+
−		// open the file
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−		BufferedReader fr = new BufferedReader(new FileReader(args[0]));
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−
+
−		// request a connection suitable for MonetDB from the driver manager
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−		// note that the database specifier is currently not implemented, for
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−		// MonetDB itself can't access multiple databases.
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−		// turn on debugging
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−		Connection con = DriverManager.getConnection("jdbc:monetdb://localhost/demo?debug=true", "monetdb", "monetdb");
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−
+
−		boolean beVerbose = false;
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−		if (args.length == 3) {
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−			// turn on verbose mode
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−			beVerbose = true;
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−		}
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−		if (args.length < 2) {
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−			// disable auto commit using the driver
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−			con.setAutoCommit(false);
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−		}
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−
+
−		// get a statement to execute on
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−		Statement stmt = con.createStatement();
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−
+
−		String query;
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−		for (int i = 1; (query = fr.readLine()) != null; i++) {
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−			if (beVerbose)
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−				System.out.println(query);
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−			try {
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−				// execute the query, no matter what it is
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−				stmt.execute(query);
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−			} catch (SQLException e) {
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−				System.out.println("Error on line " + i + ": " + e.getMessage());
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−				if (!beVerbose)
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−					System.out.println(query);
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−			}
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−		}
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−
+
−		// free resources, close the statement
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−		stmt.close();
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−		// close the connection with the database
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−		con.close();
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−		// close the file
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−		fr.close();
+
−	}
+
−}