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package de.lmu.ifi.dbs.elki.workflow;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.database.Database;
import de.lmu.ifi.dbs.elki.database.StaticArrayDatabase;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.OptionID;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization.Parameterization;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.ObjectParameter;
/**
* Data input step of the workflow.
*
* @author Erich Schubert
*
* @apiviz.has Database
*/
public class InputStep implements WorkflowStep {
/**
* Holds the database to have the algorithms run with.
*/
private Database database;
/**
* Constructor.
*
* @param database Database to use
*/
public InputStep(Database database) {
super();
this.database = database;
}
/**
* Get the database to use.
*
* @return Database
*/
public Database getDatabase() {
database.initialize();
return database;
}
/**
* Parameterization class.
*
* @author Erich Schubert
*
* @apiviz.exclude
*/
public static class Parameterizer extends AbstractParameterizer {
/**
* Holds the database to have the algorithms run on.
*/
protected Database database = null;
@Override
protected void makeOptions(Parameterization config) {
super.makeOptions(config);
final ObjectParameter<Database> dbP = new ObjectParameter<Database>(OptionID.DATABASE, Database.class, StaticArrayDatabase.class);
if(config.grab(dbP)) {
database = dbP.instantiateClass(config);
}
}
@Override
protected InputStep makeInstance() {
return new InputStep(database);
}
}
}
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