view src/main/java/nl/cwi/monetdb/mcl/connection/EmbeddedMonetDB.java @ 64:bb0d66ad7dc6 embedded

More done
author Pedro Ferreira <pedro.ferreira@monetdbsolutions.com>
date Thu, 01 Dec 2016 16:52:27 +0100 (2016-12-01)
parents 6325594f01af
children
line wrap: on
line source
package nl.cwi.monetdb.mcl.connection;

import nl.cwi.monetdb.embedded.env.MonetDBEmbeddedDatabase;
import nl.cwi.monetdb.embedded.env.MonetDBEmbeddedException;
import nl.cwi.monetdb.jdbc.MonetConnection;
import nl.cwi.monetdb.mcl.io.*;
import nl.cwi.monetdb.mcl.parser.MCLParseException;

import java.io.*;
import java.net.SocketException;
import java.util.List;

/**
 * Created by ferreira on 11/23/16.
 */
public final class EmbeddedMonetDB extends MonetConnection {

    private final String directory;

    private InternalConnection connection;

    public EmbeddedMonetDB(String database, String hash, String language, boolean blobIsBinary, boolean isDebugging, String directory) throws IOException {
        super(database, hash, language, blobIsBinary, isDebugging);
        this.directory = directory;
    }

    @Override
    public List<String> connect(String user, String pass) throws IOException, MCLParseException, MCLException {
        try {
            if(MonetDBEmbeddedDatabase.IsDatabaseRunning() && !MonetDBEmbeddedDatabase.GetDatabaseDirectory().equals(this.directory)) {
                throw new MCLException("The embedded database is already running on a different directory!");
            } else {
                MonetDBEmbeddedDatabase.StartDatabase(this.directory, true, false);
            }
            this.connection = MonetDBEmbeddedDatabase.AddJDBCEmbeddedConnection();
        } catch (MonetDBEmbeddedException ex) {
            throw new MCLException(ex);
        }
        return null;
    }

    @Override
    public String getJDBCURL() {
        return "jdbc:monetdb://localhost@" + this.directory + "/" + this.database;
    }

    @Override
    public int getBlockSize() {
        return Integer.MAX_VALUE;
    }

    @Override
    public int getSoTimeout() throws SocketException {
        throw new SocketException("Cannot get a timeout on a embedded connection!");
    }

    @Override
    public void setSoTimeout(int s) throws SocketException {
        throw new SocketException("Cannot set a timeout on a embedded connection!");
    }

    @Override
    public void closeUnderlyingConnection() throws IOException {
        try {
            MonetDBEmbeddedDatabase.StopDatabase();
        } catch (MonetDBEmbeddedException e) {
            // ignore it
        }
    }
}