/*
 * citygml4j - The Open Source Java API for CityGML
 * https://github.com/citygml4j
 * 
 * Copyright 2013-2017 Claus Nagel <claus.nagel@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *     
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.citygml4j.CityGMLContext;
import org.citygml4j.builder.CityGMLBuilder;
import org.citygml4j.model.citygml.CityGML;
import org.citygml4j.model.citygml.core.CityModel;
import org.citygml4j.model.gml.feature.AbstractFeature;
import org.citygml4j.model.module.citygml.CityGMLModuleType;
import org.citygml4j.model.module.citygml.CityGMLVersion;
import org.citygml4j.util.walker.FeatureWalker;
import org.citygml4j.xml.io.CityGMLInputFactory;
import org.citygml4j.xml.io.CityGMLOutputFactory;
import org.citygml4j.xml.io.reader.CityGMLReader;
import org.citygml4j.xml.io.writer.CityGMLWriter;

public class UpgradeConverter {

	public static void main(String[] args) throws Exception {
		SimpleDateFormat df = new SimpleDateFormat("[HH:mm:ss] "); 
		
		System.out.println(df.format(new Date()) + "setting up citygml4j context and JAXB builder");
		CityGMLContext ctx = new CityGMLContext();
		CityGMLBuilder builder = ctx.createCityGMLBuilder();
		
		System.out.println(df.format(new Date()) + "reading CityGML 1.0.0 file LOD2_Buildings_v100.gml");
		CityGMLInputFactory in = builder.createCityGMLInputFactory();
		CityGMLReader reader = in.createCityGMLReader(new File("../datasets/LOD2_Buildings_v100.gml"));
		CityModel cityModel = (CityModel)reader.nextFeature();
		reader.close();
		
		System.out.println(df.format(new Date()) + "features and their CityGML version contained in the document:");
		FeatureWalker walker = new FeatureWalker() {

			@Override
			public void visit(AbstractFeature abstractFeature) {
				if (abstractFeature instanceof CityGML) {
					CityGML cityGML = (CityGML)abstractFeature;
					System.out.println("Original CityGML version of " + cityGML.getCityGMLClass() + " instance: "+
							cityGML.getCityGMLModule().getVersion());
				}
				
				super.visit(abstractFeature);
			}
			
		};
		
		cityModel.accept(walker);
		
		CityGMLVersion version = CityGMLVersion.v2_0_0;
		System.out.println(df.format(new Date()) + "writing citygml4j object tree as CityGML " + version + " document");
		CityGMLOutputFactory out = builder.createCityGMLOutputFactory();
		out.setCityGMLVersion(version);
		
		CityGMLWriter writer = out.createCityGMLWriter(new File("LOD2_Buildings_v200.gml"));
		writer.setPrefixes(version);
		writer.setDefaultNamespace(version.getModule(CityGMLModuleType.CORE));
		writer.setSchemaLocations(version);
		writer.setIndentString("  ");
		
		writer.write(cityModel);
		writer.close();
		
		System.out.println(df.format(new Date()) + "CityGML file LOD2_Buildings_v200.gml written");
		System.out.println(df.format(new Date()) + "sample citygml4j application successfully finished");
	}

}