view src/main/java/nl/cwi/monetdb/mcl/connection/EmbeddedConnection.java @ 67:87ba760038b6 embedded

More cleanup. About to start the tuple conversions.
author Pedro Ferreira <pedro.ferreira@monetdbsolutions.com>
date Tue, 06 Dec 2016 18:13:54 +0100 (2016-12-06)
parents 7307caacc2d5
children 86967be24645
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package nl.cwi.monetdb.mcl.connection;

import nl.cwi.monetdb.embedded.env.MonetDBEmbeddedConnection;
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.protocol.MCLParseException;
import nl.cwi.monetdb.mcl.protocol.embedded.EmbeddedProtocol;

import java.io.*;
import java.util.List;
import java.util.Properties;

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

    private final String directory;

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

    public String getDirectory() {
        return directory;
    }

    public MonetDBEmbeddedConnection getAsMonetDBEmbeddedConnection() {
        return ((EmbeddedProtocol)protocol).getEmbeddedConnection();
    }

    @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.protocol = new EmbeddedProtocol(MonetDBEmbeddedDatabase.CreateJDBCEmbeddedConnection());
        } 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() {
        this.addWarning("Cannot get a timeout on a embedded connection!", "M1M05");
        return -1;
    }

    @Override
    public void setSoTimeout(int s) {
        this.addWarning("Cannot set a timeout on a embedded connection!", "M1M05");
    }

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