/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2008, Open Source Geospatial Foundation (OSGeo)
*
* This library 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;
* version 2.1 of the License.
*
* This library 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.
*/
package org.geotools.process.feature;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.geotools.data.Parameter;
import org.geotools.feature.FeatureCollection;
import org.geotools.process.ProcessFactory;
import org.geotools.text.Text;
/**
* Base class for process factories which perform an operation on each feature in a feature
* collection with the result being a feature collection (the original collection modified
* or a new collection).
* <p>
* <b>Note</b>: This base class is intended to be used for processes which operate on each feature in a feature
* collection, resulting in a new feature collection which has the same schema as the original.
* </p>
* <p>
* Subclasses must implement:
* <ul>
* <li>{@link ProcessFactory#getTitle()}
* <li>{@link ProcessFactory#getDescription()}
* <li>{@link #addParameters(Map)}
* <li>
* </ul>
* </p>
*
* @author Justin Deoliveira, OpenGEO
* @since 2.6
*
*
*
* @source $URL$
*/
public abstract class FeatureToFeatureProcessFactory extends AbstractFeatureCollectionProcessFactory {
private static final String VERSION = "1.0.0";
/**
* Result of the operation is a FeatureCollection.
* This can be the input FeatureCollection, modified by the process
* or a new FeatureCollection.
*/
static final Parameter<FeatureCollection> RESULT = new Parameter<FeatureCollection>(
"result", FeatureCollection.class, Text.text("Result"), Text
.text("Buffered features"));
static final Map<String,Parameter<?>> resultInfo = new HashMap<String, Parameter<?>>();
static {
resultInfo.put( RESULT.key, RESULT );
}
public final Map<String, Parameter<?>> getResultInfo(
Map<String, Object> parameters) throws IllegalArgumentException {
return Collections.unmodifiableMap( resultInfo );
}
public final boolean supportsProgress() {
return true;
}
public String getVersion() {
return VERSION;
}
}