GTVectorDataBinding.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.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;

import org.geotools.feature.FeatureCollection;

import org.n52.wps.io.data.GenericFileDataWithGT;
import org.n52.wps.io.data.IComplexData;
import org.n52.wps.io.datahandler.generator.SimpleGMLGenerator;
import org.n52.wps.io.datahandler.parser.SimpleGMLParser;

public class GTVectorDataBinding implements IComplexData{
	
	protected transient FeatureCollection<?, ?> featureCollection;	
	
	public GTVectorDataBinding(FeatureCollection<?, ?> payload) {
		this.featureCollection = payload;
	}

	public Class<FeatureCollection> getSupportedClass() {
		return FeatureCollection.class;
	}

	public FeatureCollection<?, ?> getPayload() {
			return featureCollection;
	}
	
	public File getPayloadAsShpFile(){
		try {
			return GenericFileDataWithGT.getShpFile(featureCollection);
		} catch (IOException e) {
			e.printStackTrace();
			throw new RuntimeException("Could not transform Feature Collection into shp file. Reason " +e.getMessage());
		}
		
	}
	private synchronized void writeObject(java.io.ObjectOutputStream oos) throws IOException
	{
		StringWriter buffer = new StringWriter();
		SimpleGMLGenerator generator = new SimpleGMLGenerator();
		generator.write(this, buffer);
		oos.writeObject(buffer.toString());
	}
	
	private synchronized void readObject(java.io.ObjectInputStream oos) throws IOException, ClassNotFoundException
	{
		SimpleGMLParser parser = new SimpleGMLParser();
			
		InputStream stream = new ByteArrayInputStream(((String) oos.readObject()).getBytes());
		
		// use a default configuration for the parser by requesting the first supported format and schema
		GTVectorDataBinding data = parser.parse(stream, parser.getSupportedFormats()[0], parser.getSupportedEncodings()[0]);
		
		this.featureCollection = data.getPayload();
	}
	
	@Override
    public void dispose() {
        
    }

}