content: /**
   * ﻿Copyright (C) 2007 - 2019 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;
  	}
  
  }
  