/*
 *                  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/
 * 
 * 
 * 
 */

import java.util.List;

import org.biojava.bio.structure.PDBHeader;
import org.biojava.bio.structure.Structure;
import org.biojava.bio.structure.io.HibernateInstallation;
import org.biojava.bio.structure.server.PDBInstallation;
import org.biojava.bio.structure.server.SimpleStructureServer;
import org.biojava.bio.structure.server.StructureEvent;
import org.biojava.bio.structure.server.StructureListener;
import org.biojava.bio.structure.server.StructureServer;



/** A simple client that implements the StructureListener interface.
 * It uses the SimpleStructureServer to request the loading of structures
 * in multiple threads and gets notifications via the newStructure class.
 * 
 * @see org.biojava.bio.structure.server.StructureListener
 * @see org.biojava.bio.structure.server.SimpleStructureServer
 * @see #newStructure(StructureEvent)
 * 
 * @author Andreas Prlic
 *
 */
public class DemoHibernateStructureClient 
implements StructureListener, 
Runnable {

	StructureServer server ;
	
	
	public static void main(String[] args){
		
		SimpleStructureServer server = new SimpleStructureServer();

		DemoHibernateStructureClient demo = new DemoHibernateStructureClient();
				
		PDBInstallation installation = new HibernateInstallation();

		
		// demo 1 - access individual files through the installation
		PDBHeader h1 = installation.getPDBHeader("5pti");
		System.out.println(h1);

		if ( h1 == null) {
			System.out.println("could not find 5pti in your installation. Is everything ok. with it?");
		}
		// get the structure for this header
		Structure s = installation.getStructure(h1.getIdCode());
		System.out.println(s);
		
		// get all PDBHeaders
		List<PDBHeader> headers = installation.getAll();
		System.out.println(headers.size());
		System.out.println(headers.get(0));

		
		
		
		// demo 2 - loop over structures and access them
		// using the multi-threaded speedup provided through the 
		// StructureServer 
		
		server.setPDBInstallation(installation);
		
		// preload this number of structures while the 
		// structureListener thread is busy
		server.setCacheSize(2); 

		//  init the server
		server.initCache();
		
		demo.setServer(server);
		
		// we hook hook the demo to the server.
		// every time the server is being requested to load a new
		// structure, it will tell us when the loading is finished
		server.addStructureListener(demo);

		// and we start  our demo.
		Thread t = new Thread(demo);
		t.start();



	}
	
	

	/** when the demo thread starts, we request the 1st structure from the server.
	 * 
	 */
	public void run(){
		
		//System.out.println("starting new Thread in Demo");
		
		server.requestNextStructure(this);
	}
	
	/** get the Server
	 * 
	 * @return the server
	 */
	public StructureServer getServer() {
		return server;
	}

	/** set the server
	 * 
	 * @param server
	 */
	public void setServer(StructureServer server) {
		this.server = server;
	}


	/** the server is sending us a new Structure
	 * (we have requested one before using server.requestNextStructure)
	 * @see org.biojava.bio.structure.server.StructureServer
	 * 
	 */
	
	public void newStructure(StructureEvent event) {
		System.out.println("got new structure from server");
		Structure s = event.getStructure();
		
		System.out.println(s);
		
		// this is the place where we would do some calculations.
		
		
		// now we are ready to work on the next structure.
		
		
		// request it from the server
		server.requestNextStructure(this);
		
		
	}

	public void obsoleteStructure(StructureEvent event) {
		// TODO Auto-generated method stub
		
	}
	
	public void modifiedStructure(StructureEvent event) {
		// TODO Auto-generated method stub
		
	}

}