/**
* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* • Apache License, version 2.0
* • Apache Software License, version 1.0
* • GNU Lesser General Public License, version 3
* • Mozilla Public License, versions 1.0, 1.1 and 2.0
* • Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public
* License version 2 and the aforementioned licenses.
*
* As an exception to the terms of the GPL, you may copy, modify,
* propagate, and distribute a work formed by combining 52°North WPS
* GeoTools Modules with the Eclipse Libraries, or a work derivative of
* such a combination, even if such copying, modification, propagation, or
* distribution would otherwise violate the terms of the GPL. Nothing in
* this exception exempts you from complying with the GPL in all respects
* for all of the code used other than the Eclipse Libraries. You may
* include this exception and its grant of permissions when you distribute
* 52°North WPS GeoTools Modules. Inclusion of this notice with such a
* distribution constitutes a grant of such permissions. If you do not wish
* to grant these permissions, remove this paragraph from your
* distribution. "52°North WPS GeoTools Modules" means the 52°North WPS
* modules using GeoTools functionality - software licensed under version 2
* or any later version of the GPL, or a work based on such software and
* licensed under the GPL. "Eclipse Libraries" means Eclipse Modeling
* Framework Project and XML Schema Definition software distributed by the
* Eclipse Foundation and licensed under the Eclipse Public License Version
* 1.0 ("EPL"), or a work based on such software and licensed under the EPL.
*
* 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.
*/
package org.n52.wps.io.datahandler.parser;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.geotools.data.collection.ListFeatureCollection;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.feature.NameImpl;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.geotools.geometry.jts.WKTReader2;
import org.geotools.referencing.CRS;
import org.n52.wps.io.GTHelper;
import org.n52.wps.io.IOUtils;
import org.n52.wps.io.data.binding.complex.GTVectorDataBinding;
import org.opengis.feature.Property;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.Name;
import org.opengis.referencing.FactoryException;
import org.opengis.referencing.NoSuchAuthorityCodeException;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.io.ParseException;
/**
* @author Bastian Schaeffer; Matthias Mueller, TU Dresden
*
*/
public class GTBinZippedWKT64Parser extends AbstractParser {
private static Logger LOGGER = LoggerFactory.getLogger(GTBinZippedWKT64Parser.class);
public GTBinZippedWKT64Parser() {
super();
supportedIDataTypes.add(GTVectorDataBinding.class);
}
/**
* @throws RuntimeException
* if an error occurs while writing the stream to disk or
* unzipping the written file
* @see org.n52.wps.io.IParser#parse(java.io.InputStream)
*/
@Override
public GTVectorDataBinding parse(InputStream stream, String mimeType, String schema) {
try {
String fileName = "tempfile" + UUID.randomUUID() + ".zip";
String tmpDirPath = System.getProperty("java.io.tmpdir");
File tempFile = new File(tmpDirPath + File.separatorChar + fileName);
finalizeFiles.add(tempFile); // mark tempFile for final delete
try {
FileOutputStream outputStream = new FileOutputStream(tempFile);
byte buf[] = new byte[4096];
int len;
while ((len = stream.read(buf)) > 0) {
outputStream.write(buf, 0, len);
}
outputStream.close();
stream.close();
} catch (FileNotFoundException e) {
System.gc();
LOGGER.error(e.getMessage(), e);
throw new RuntimeException(e);
} catch (IOException e) {
LOGGER.error(e.getMessage(), e);
System.gc();
throw new RuntimeException(e);
}
finalizeFiles.add(tempFile); // mark for final delete
stream.close();
List<File> wktFiles = IOUtils.unzip(tempFile, "wkt");
finalizeFiles.addAll(wktFiles); // mark for final delete
if (wktFiles == null || wktFiles.size() == 0) {
throw new RuntimeException(
"Cannot find a shapefile inside the zipped file.");
}
//set namespace namespace
List<Geometry> geometries = new ArrayList<Geometry>();
//read wkt file
//please not that only 1 geometry is returned. If multiple geometries are included, perhaps use the read(String wktstring) method
for(int i = 0; i<wktFiles.size();i++){
File wktFile = wktFiles.get(i);
Reader fileReader = new FileReader(wktFile);
WKTReader2 wktReader = new WKTReader2();
com.vividsolutions.jts.geom.Geometry geometry = wktReader.read(fileReader);
geometries.add(geometry);
}
CoordinateReferenceSystem coordinateReferenceSystem = CRS.decode("EPSG:4326");
SimpleFeatureCollection inputFeatureCollection = createFeatureCollection(geometries, coordinateReferenceSystem);
return new GTVectorDataBinding(inputFeatureCollection);
} catch (IOException e) {
LOGGER.error(e.getMessage(), e);
throw new RuntimeException(
"An error has occurred while accessing provided data", e);
} catch (ParseException e) {
LOGGER.error(e.getMessage(), e);
throw new RuntimeException(
"An error has occurred while accessing provided data", e);
} catch (NoSuchAuthorityCodeException e) {
LOGGER.error(e.getMessage(), e);
throw new RuntimeException(
"An error has occurred while accessing provided data", e);
} catch (FactoryException e) {
LOGGER.error(e.getMessage(), e);
throw new RuntimeException(
"An error has occurred while accessing provided data", e);
}
}
private SimpleFeatureCollection createFeatureCollection(List<com.vividsolutions.jts.geom.Geometry> geometries, CoordinateReferenceSystem coordinateReferenceSystem){
SimpleFeatureTypeBuilder typeBuilder = new SimpleFeatureTypeBuilder();
if(coordinateReferenceSystem==null){
try {
coordinateReferenceSystem = CRS.decode("EPSG:4326");
} catch (NoSuchAuthorityCodeException e) {
LOGGER.error(e.getMessage(), e);
throw new RuntimeException(
"An error has occurred while trying to decode CRS EPSG:4326", e);
} catch (FactoryException e) {
LOGGER.error(e.getMessage());
throw new RuntimeException(
"An error has occurred while trying to decode CRS EPSG:432", e);
}
typeBuilder.setCRS(coordinateReferenceSystem);
}
String namespace = "http://www.opengis.net/gml";
typeBuilder.setNamespaceURI(namespace);
Name nameType = new NameImpl(namespace, "Feature");
typeBuilder.setName(nameType);
typeBuilder.add("GEOMETRY", geometries.get(0).getClass());
List<SimpleFeature> simpleFeatureList = new ArrayList<SimpleFeature>();
SimpleFeatureType featureType = typeBuilder.buildFeatureType();
for(int i = 0; i<geometries.size();i++){
SimpleFeature feature = GTHelper.createFeature(""+i, geometries.get(i), featureType, new ArrayList<Property>());
simpleFeatureList.add(feature); }
SimpleFeatureCollection collection = new ListFeatureCollection(featureType, simpleFeatureList);
return collection;
}
}