ShapefileBinding.java

/**
 * 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.data.binding.complex;

import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;

import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.geotools.data.DataStore;
import org.geotools.data.shapefile.ShapefileDataStore;
import org.geotools.data.shapefile.ShapefileUtilities;
import org.geotools.data.shapefile.ShpFiles;
import org.geotools.feature.FeatureCollection;
import org.n52.wps.io.IOHandler;
import org.n52.wps.io.IOUtils;
import org.n52.wps.io.data.IComplexData;


public class ShapefileBinding implements IComplexData{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private static Logger LOGGER = LoggerFactory.getLogger(ShapefileBinding.class);
	
	
	protected File shpFile;
	protected String mimeType;
	
	public ShapefileBinding(File shapeFile){
		this.shpFile = shapeFile;
		mimeType = IOHandler.MIME_TYPE_ZIPPED_SHP;
	}
	
	@Override
	public File getPayload() {
		return shpFile;
	}

	@Override
	public Class getSupportedClass() {
		return File.class;
	}
	
	public String getMimeType() {
		return mimeType;
	}

	public File getZippedPayload(){
		String path = shpFile.getAbsolutePath();
		String baseName = path.substring(0, path.length() - ".shp".length());
		File shx = new File(baseName + ".shx");
		File dbf = new File(baseName + ".dbf");
		File prj = new File(baseName + ".prj");
		File zipped = null;
		try {
			zipped = IOUtils.zip(shpFile, shx, dbf, prj);
		} catch (IOException e) {
			LOGGER.error(e.getMessage(), e);
		}
		return zipped;

	}
	
	public GTVectorDataBinding getPayloadAsGTVectorDataBinding(){
		try {
			DataStore store = new ShapefileDataStore(shpFile.toURI().toURL());
			FeatureCollection features = store.getFeatureSource(store.getTypeNames()[0]).getFeatures();
//			System.gc(); XXX WTF, dude? System.gc() is the root of evil.
			return new GTVectorDataBinding(features);
		} catch (MalformedURLException e) {
			LOGGER.error("Something went wrong while creating data store.", e);
			throw new RuntimeException("Something went wrong while creating data store.", e);
		} catch (IOException e) {
			LOGGER.error("Something went wrong while converting shapefile to FeatureCollection", e);
			throw new RuntimeException("Something went wrong while converting shapefile to FeatureCollection", e);
		}
	}
	
    @Override
	public void dispose(){
        FileUtils.deleteQuietly(shpFile);
	}
	
	
}