/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.openide.util.lookup;

import org.netbeans.performance.Benchmark;
import java.util.*;
import org.openide.util.Lookup;
import org.openide.util.lookup.*;

/**
 * Comparison beween tree lookup structure and flat lookup structure.
 * Uses three different Lookup configurations:
 * 
ProxyLookup containing 16 InstanceLookups
 *     
ProxyLookup containing 2 ProxyLookups of 8 InstanceLookups each
 *     
ProxyLookup of 2 ProxyLookups of 2 ProxyLookups of 4 InstanceLookups each
 * 
 */
public class ProxyLookupTest extends Benchmark {

    public ProxyLookupTest(String name) {
        super( name, new String[] {"tree3", "tree2", "flat"} );
    }

    private Lookup lookup;
    
    protected void setUp() {
        String type = (String)getArgument();
	if("tree3".equals(type)) {
	    lookup = new ProxyLookup( new Lookup[] {
		new ProxyLookup( new Lookup[] {
		    createProxy(4),
		    createProxy(4)
		}),
		new ProxyLookup( new Lookup[] {
		    createProxy(4),
		    createProxy(4)
		})
	    });
	} else if("tree2".equals(type)) {
	    lookup = new ProxyLookup( new Lookup[] {
		createProxy(8),
		createProxy(8)
	    });
	} else {
	    lookup = createProxy(16);
	}
    }
    
    private Lookup createOne() {
	InstanceContent ic = new InstanceContent();
	ic.add(new Object());
	ic.add("");
	return new AbstractLookup(ic);
    }
    
    private Lookup createProxy(int subs) {
    	Lookup[] delegates = new Lookup[subs];
	for(int i=0; i 0 ) {
            // do the stuff here, 
	    lookup.lookup(Object.class);
        }
    }    

    public void testLookupString() throws Exception {
        int count = getIterationCount();

        while( count-- > 0 ) {
            // do the stuff here, 
	    lookup.lookup(String.class);
        }
    }    

    public void testAllInstances() throws Exception {
        int count = getIterationCount();
	Lookup.Result result = lookup.lookup(new Lookup.Template(String.class));

        while( count-- > 0 ) {
            // do the stuff here, 
	    Collection c = result.allInstances();
        }
    }    

    public void testIterateInstances() throws Exception {
        int count = getIterationCount();
	Lookup.Result result = lookup.lookup(new Lookup.Template(String.class));

        while( count-- > 0 ) {
            // do the stuff here, 
	    Iterator i = result.allInstances().iterator();
	    while (i.hasNext()) i.next();
        }
    }    

    public static void main( String[] args ) {
	junit.textui.TestRunner.run( new junit.framework.TestSuite( ProxyLookupTest.class ) );
    }
}