/*
* Copyright (C) 2008-2015 by Holger Arndt
*
* This file is part of the Universal Java Matrix Package (UJMP).
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* UJMP is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* UJMP 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with UJMP; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package org.ujmp.jackcess;
import java.io.File;
import java.io.IOException;
import java.util.Set;
import org.ujmp.core.util.StringUtil;
import com.healthmarketscience.jackcess.Database;
import com.healthmarketscience.jackcess.DatabaseBuilder;
public class LinkMatrixMDB {
public static final JackcessDenseObjectMatrix2D toFile(File file, Object... parameters)
throws IOException {
Database db = DatabaseBuilder.open(file);
Set<String> tables = db.getTableNames();
String tablename = null;
if (parameters.length != 0) {
tablename = StringUtil.convert(parameters[0]);
}
if (tablename == null) {
if (tables.size() == 1) {
tablename = db.getTableNames().iterator().next();
}
}
db.close();
if (tablename == null) {
throw new IllegalArgumentException(
"please append the table name, i.e. one of these tables: " + tables);
}
return new JackcessDenseObjectMatrix2D(file, tablename);
}
}