*                    BioJava development code
 * This code may be freely distributed and modified under the
 * terms of the GNU Lesser General Public Licence.  This should
 * be distributed with the code.  If you do not have a copy,
 * see:
 *      http://www.gnu.org/copyleft/lesser.html
 * Copyright for this code is held jointly by the individual
 * authors.  These should be listed in @author doc comments.
 * For more information on the BioJava project and its aims,
 * or to join the biojava-l mailing list, visit the home page
 * at:
 *      http://www.biojava.org/

package demo;

import org.biojava.nbio.structure.Chain;
import org.biojava.nbio.structure.Structure;
import org.biojava.nbio.structure.io.mmcif.MMcifParser;
import org.biojava.nbio.structure.io.mmcif.SimpleMMcifConsumer;
import org.biojava.nbio.structure.io.mmcif.SimpleMMcifParser;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;

 * An example of how to convert mmCIF file to PDB file
 * @author Jose Duarte
public class DemoMmcifToPdbConverter

	public static void main(String[] args) throws Exception {

		File inFile = new File(args[0]);
		File outFile = new File(args[1]);
		convert(inFile, outFile);

	public static void convert(File inFile, File outFile) throws IOException {

	MMcifParser parser = new SimpleMMcifParser();

	SimpleMMcifConsumer consumer = new SimpleMMcifConsumer();
	parser.parse(new BufferedReader(new InputStreamReader(new FileInputStream(inFile))));

	// now get the protein structure.
	Structure cifStructure = consumer.getStructure();

	// and write it out as PDB format
	PrintWriter pr = new PrintWriter(outFile);
	for (Chain c : cifStructure.getChains()) {
			// we can override the chain name, the mmCIF chain names might have more than 1 character
			c.setName(c.getName().substring(0, 1));