Main.java

package jadex.xml.tutorial.example11;

import jadex.commons.SUtil;
import jadex.xml.AccessInfo;
import jadex.xml.MappingInfo;
import jadex.xml.ObjectInfo;
import jadex.xml.SubobjectInfo;
import jadex.xml.TypeInfo;
import jadex.xml.XMLInfo;
import jadex.xml.bean.BeanAccessInfo;
import jadex.xml.bean.BeanObjectReaderHandler;
import jadex.xml.bean.BeanObjectWriterHandler;
import jadex.xml.reader.Reader;
import jadex.xml.writer.Writer;

import java.io.InputStream;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

/**
 *  Main class to execute tutorial lesson.
 */
public class Main
{
	/**
	 *  Main method for using the xml reader/writer.
	 */
	public static void main(String[] args) throws Exception
	{
		// Using collections. Here a number of invoice items are stored in a list.
		// Here it is shown how a map can be used as data container.
		// As part of the access info a Java-bean specific extra info 
		// is used, the BeanAccessInfo(). It allows to specify access via
		// store/fetch fields or methods and also via a mapname and key access help
		// (field/method).
		
		// Writing the map as collection is here sufficient because the map keys
		// are also part of the elements in the map.
		// new SubobjectInfo(new AccessInfo("item", "items"), null, true)
		// There is currently no special support for writing maps, because
		// they can be preprocessed in Java before writing. 
		
		// Create minimal type infos for types that need to be mapped
		Set typeinfos = new HashSet();
		typeinfos.add(new TypeInfo(new XMLInfo("invoice"), new ObjectInfo(InvoiceMap.class), 
			new MappingInfo(null, new SubobjectInfo[]{
			new SubobjectInfo(new AccessInfo("item", "item", null, null, new BeanAccessInfo(null, null, "item", 
				Invoice.class.getMethod("getKey", new Class[0]))))		
			})));
		typeinfos.add(new TypeInfo(new XMLInfo("item"), new ObjectInfo(Invoice.class),
			new MappingInfo(null, new SubobjectInfo[]{
			new SubobjectInfo(new AccessInfo("product-key", "key"))		
			})));
		
		// Create an xml reader with standard bean object reader and the
		// custom typeinfos
		Reader xmlreader = new Reader(new BeanObjectReaderHandler(typeinfos));
		InputStream is = SUtil.getResource("jadex/xml/tutorial/example11/data.xml", null);
		Object object = xmlreader.read(is, null, null);
		is.close();
		
		typeinfos = new HashSet();
		typeinfos.add(new TypeInfo(new XMLInfo("invoice"), new ObjectInfo(InvoiceMap.class), 
			new MappingInfo(null, new SubobjectInfo[]{
			new SubobjectInfo(new AccessInfo("item", "items"), null, true)		
			})));
		typeinfos.add(new TypeInfo(new XMLInfo("item"), new ObjectInfo(Map.Entry.class),
			new MappingInfo(null, new SubobjectInfo[]{
			new SubobjectInfo(new AccessInfo("product-key", "key"))		
			})));
		
		// Write the xml to the output file.
		Writer xmlwriter = new Writer(new BeanObjectWriterHandler(typeinfos, false, true), false);
		String xml = Writer.objectToXML(xmlwriter, object, null);
//		OutputStream os = new FileOutputStream("out.xml");
//		xmlwriter.write(object, os, null, null);
//		os.close();
		
		// And print out the result.
		System.out.println("Read object: "+object);
		System.out.println("Wrote xml: "+xml);
	}
}