/*
 * (c) Copyright 2004, 2005, 2006, 2007 Hewlett-Packard Development Company, LP
 * [See end of file]
 */

package arqo;

import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.StmtIterator;
import com.hp.hpl.jena.reasoner.ReasonerRegistry;
import com.hp.hpl.jena.util.FileManager;

/**
 * Get the number of triples contained in a (inference) model.
 * 
 * @author Markus Stocker
 * @version $Id$
 */

public class triples 
{
	private static String inGraphFileName = null ;
	private static String inSchemaFileName = null ;
	private static String reasoner = null ;
	private static Model model = null ;
	
	/**
	 * Main program
	 * 
	 * @param args
	 */
	public static void main(String[] args) 
	{
		try
		{
			readCmdParams(args) ;

			System.out.println("Schema ontology: " + inSchemaFileName) ;
			System.out.println("Data ontology: " + inGraphFileName) ;
			System.out.println("Reasoner: " + reasoner) ;
				
			loadModel() ;
	        
	        System.out.println("Number of triples: " + getModelSize(model)) ;
		} catch (Exception e) { e.printStackTrace() ; }
	}
	
	private static int getModelSize(Model model)
	{
		int size = 0 ;
		
		StmtIterator stmtIter = model.listStatements() ;
		
		while (stmtIter.hasNext())
		{
			stmtIter.next() ;
			size++ ;
		}
		
		return size ;
	}
	
	// Load the model with RDFS inferencing if schema is provided
	private static void loadModel()
	{
		System.out.println("Loading model ...") ;
		
		if (inSchemaFileName != null)
		{
			if (reasoner.equals("Transitive"))
				model = ModelFactory.createInfModel(ReasonerRegistry.getTransitiveReasoner(), 
											    	FileManager.get().loadModel(inSchemaFileName), 
											    	FileManager.get().loadModel(inGraphFileName)) ;
			else 
				model = ModelFactory.createInfModel(ReasonerRegistry.getRDFSReasoner(), 
				    								FileManager.get().loadModel(inSchemaFileName), 
				    								FileManager.get().loadModel(inGraphFileName)) ;
		}
		else
			model = FileManager.get().loadModel(inGraphFileName) ;	
	}
	
	// Read the command line params
	private static void readCmdParams(String[] args) throws Exception
	{
		for (int i = 0; i < args.length; i++)
		{
			if (args[i].equals("--graph"))
				inGraphFileName = args[i+1] ;
			else if (args[i].equals("--schema"))
				inSchemaFileName = args[i+1] ;
			else if (args[i].equals("--reasoner"))
				reasoner = args[i+1] ;
			else if (args[i].equals("--help"))
				usage() ;
		}

		if (inGraphFileName == null)
			usage() ;
	}
	
	// Print the usage of the main program
	private static void usage()
	{
		String usage = "arqo.triples [options]\n" ;
		usage += "--graph\n" ;
		usage += "--schema (optional)\n" ;
		usage += "--reasoner (optional, default RDFS if schema is provided) [RDFS | Transitive]\n" ;
		
		System.out.println(usage) ;
		
		System.exit(0) ;
	}

}


/*
 *  (c) Copyright 2004, 2005, 2006, 2007 Hewlett-Packard Development Company, LP
 *  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */