/**
* Copyright (C) 2001-2017 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* 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/.
*/
package com.rapidminer.operator.preprocessing.filter.attributes;
import com.rapidminer.example.Attribute;
import com.rapidminer.operator.UserError;
import com.rapidminer.operator.ports.metadata.AttributeMetaData;
import com.rapidminer.operator.ports.metadata.MetaDataInfo;
import com.rapidminer.parameter.ParameterHandler;
import com.rapidminer.parameter.ParameterType;
import com.rapidminer.tools.Ontology;
import java.util.LinkedList;
import java.util.List;
/**
* This class implements the condition if an attribute is numeric. All non-numerical attributes will
* be removed.
*
* @author Ingo Mierswa, Sebastian Land
*/
public class DateAttributeFilter extends AbstractAttributeFilterCondition {
@Override
public MetaDataInfo isFilteredOutMetaData(AttributeMetaData attribute, ParameterHandler handler) {
return Ontology.ATTRIBUTE_VALUE_TYPE.isA(attribute.getValueType(), Ontology.DATE_TIME) ? MetaDataInfo.NO
: MetaDataInfo.YES;
}
@Override
public ScanResult beforeScanCheck(Attribute attribute) throws UserError {
if (!Ontology.ATTRIBUTE_VALUE_TYPE.isA(attribute.getValueType(), Ontology.DATE_TIME)) {
return ScanResult.REMOVE;
} else {
return ScanResult.KEEP;
}
}
public List<ParameterType> getParameterTypes(ParameterHandler handler) {
return new LinkedList<ParameterType>();
}
}