/**
* 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.util.annotations;
import com.rapidminer.example.Attribute;
import com.rapidminer.example.Attributes;
import com.rapidminer.example.ExampleSet;
import com.rapidminer.example.table.AttributeFactory;
import com.rapidminer.example.utils.ExampleSetBuilder;
import com.rapidminer.example.utils.ExampleSets;
import com.rapidminer.operator.Annotations;
import com.rapidminer.operator.IOObject;
import com.rapidminer.operator.Operator;
import com.rapidminer.operator.OperatorDescription;
import com.rapidminer.operator.OperatorException;
import com.rapidminer.operator.ports.InputPort;
import com.rapidminer.operator.ports.OutputPort;
import com.rapidminer.operator.ports.metadata.AttributeMetaData;
import com.rapidminer.operator.ports.metadata.ExampleSetMetaData;
import com.rapidminer.operator.ports.metadata.MDTransformationRule;
import com.rapidminer.tools.Ontology;
/**
* @author Marius Helf
*
*/
public class AnnotationsToData extends Operator {
private static final String ANNOTATION_ATTRIBUTE = "annotation";
private static final String VALUE_ATTRIBUTE = "value";
private InputPort inputPort = getInputPorts().createPort("object", IOObject.class);
private OutputPort annotationsOutputPort = getOutputPorts().createPort("annotations");
private OutputPort outputPort = getOutputPorts().createPort("object through");
/**
* @param description
*/
public AnnotationsToData(OperatorDescription description) {
super(description);
getTransformer().addPassThroughRule(inputPort, outputPort);
getTransformer().addRule(new MDTransformationRule() {
@Override
public void transformMD() {
ExampleSetMetaData metaData = new ExampleSetMetaData();
metaData.addAttribute(new AttributeMetaData(ANNOTATION_ATTRIBUTE, Ontology.POLYNOMINAL, Attributes.ID_NAME));
metaData.addAttribute(new AttributeMetaData(VALUE_ATTRIBUTE, Ontology.POLYNOMINAL));
annotationsOutputPort.deliverMD(metaData);
}
});
}
@Override
public void doWork() throws OperatorException {
IOObject data = inputPort.getData(IOObject.class);
Annotations annotations = data.getAnnotations();
Attribute annotationAttr = AttributeFactory.createAttribute(ANNOTATION_ATTRIBUTE, Ontology.POLYNOMINAL);
Attribute valueAttr = AttributeFactory.createAttribute(VALUE_ATTRIBUTE, Ontology.POLYNOMINAL);
ExampleSetBuilder builder = ExampleSets.from(annotationAttr, valueAttr).withExpectedSize(annotations.size());
for (String annotation : annotations.getDefinedAnnotationNames()) {
double[] rowData = new double[2];
rowData[0] = annotationAttr.getMapping().mapString(annotation);
rowData[1] = valueAttr.getMapping().mapString(annotations.getAnnotation(annotation));
builder.addRow(rowData);
}
ExampleSet exampleSet = builder.build();
exampleSet.getAttributes().setSpecialAttribute(annotationAttr, Attributes.ID_NAME);
outputPort.deliver(data);
annotationsOutputPort.deliver(exampleSet);
}
}