org.hortonmachine.gears.modules.v.vectorfilter.OmsVectorFilter Maven / Gradle / Ivy
/*
* This file is part of HortonMachine (http://www.hortonmachine.org)
* (C) HydroloGIS - www.hydrologis.com
*
* The HortonMachine is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package org.hortonmachine.gears.modules.v.vectorfilter;
import oms3.annotations.Author;
import oms3.annotations.Description;
import oms3.annotations.Documentation;
import oms3.annotations.Execute;
import oms3.annotations.In;
import oms3.annotations.Keywords;
import oms3.annotations.Label;
import oms3.annotations.License;
import oms3.annotations.Name;
import oms3.annotations.Out;
import oms3.annotations.Status;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_AUTHORCONTACTS;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_AUTHORNAMES;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_DESCRIPTION;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_DOCUMENTATION;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_IN_VECTOR_DESCRIPTION;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_KEYWORDS;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_LABEL;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_LICENSE;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_NAME;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_OUT_VECTOR_DESCRIPTION;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_P_CQL_DESCRIPTION;
import static org.hortonmachine.gears.i18n.GearsMessages.OMSVECTORFILTER_STATUS;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.data.simple.SimpleFeatureIterator;
import org.geotools.feature.DefaultFeatureCollection;
import org.hortonmachine.gears.libs.modules.HMModel;
import org.hortonmachine.gears.utils.features.FilterUtilities;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.Filter;
@Description(OMSVECTORFILTER_DESCRIPTION)
@Documentation(OMSVECTORFILTER_DOCUMENTATION)
@Author(name = OMSVECTORFILTER_AUTHORNAMES, contact = OMSVECTORFILTER_AUTHORCONTACTS)
@Keywords(OMSVECTORFILTER_KEYWORDS)
@Label(OMSVECTORFILTER_LABEL)
@Name(OMSVECTORFILTER_NAME)
@Status(OMSVECTORFILTER_STATUS)
@License(OMSVECTORFILTER_LICENSE)
public class OmsVectorFilter extends HMModel {
@Description(OMSVECTORFILTER_IN_VECTOR_DESCRIPTION)
@In
public SimpleFeatureCollection inVector;
@Description(OMSVECTORFILTER_P_CQL_DESCRIPTION)
@In
public String pCql = null;
@Description(OMSVECTORFILTER_OUT_VECTOR_DESCRIPTION)
@Out
public SimpleFeatureCollection outVector;
@Execute
public void process() throws Exception {
if (!concatOr(outVector == null, doReset)) {
return;
}
checkNull(inVector, pCql);
Filter cqlFilter = FilterUtilities.getCQLFilter(pCql);
SimpleFeatureCollection subCollection = inVector.subCollection(cqlFilter);
outVector = new DefaultFeatureCollection();
SimpleFeatureIterator iterator = subCollection.features();
try {
while( iterator.hasNext() ) {
SimpleFeature feature = iterator.next();
((DefaultFeatureCollection) outVector).add(feature);
}
} finally {
iterator.close();
}
}
}