alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

What this is

This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Other links

The source code

/*
 *                 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 1997-2001 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.mdr.test;

import java.io.*;
import java.util.*;
import java.net.*;

import junit.extensions.*;
import junit.framework.*;

import org.netbeans.api.mdr.*;
import org.openide.util.Lookup;

import org.netbeans.mdr.util.*;
import org.netbeans.mdr.NBMDRepositoryImpl;
import org.netbeans.lib.jmi.xmi.*;
import org.netbeans.lib.jmi.mapping.*;

import javax.jmi.reflect.*;
import javax.jmi.model.*;

/**
 * Multivalued index test case.
 */
public class MultivaluedIndexTest extends MDRTestCase {        
    
    // number of classes that are generated to test (Btree)ListIterator functionality
    private static final int MAX = 2000;
    
    private long counter = 0;
    private Random random = new Random (0);
        
    public MultivaluedIndexTest(String testName) {
        super (testName);
    }
    
    public static void main (String[] args) {
        junit.textui.TestRunner.run (suite ());
    }
    
    public static Test suite () {
        TestSuite suite = new TestSuite ();
        suite.addTestSuite (MultivaluedIndexTest.class);
        
        TestSetup setup = new TestSetup (suite) {
            public void setUp () {
//                org.netbeans.mdr.handlers.BaseObjectHandler.setDefaultClassLoader (this.getClass ().getClassLoader ());
            }
            public void tearDown () {
            }
        };        
        return setup;        
    }

    public void test () {
        MofClass classC = null, classN = null, classP = null;
        MofException excF = null, excR = null;
        Iterator iter = modelPackage.getMofClass ().refAllOfType ().iterator ();
        while (iter.hasNext ()) {
            MofClass mofClass = (MofClass) iter.next ();
            String name = mofClass.getName ();
            if (name.equals ("Namespace"))
                classN = mofClass;
            if (name.equals ("Class"))
                classC = mofClass;
            if (name.equals ("Package"))
                classP = mofClass;
        }
        iter = modelPackage.getMofException ().refAllOfType ().iterator ();
        while (iter.hasNext ()) {
            MofException mofExc = (MofException) iter.next ();
            String name = mofExc.getName ();
            if (name.equals ("NameNotFound"))
                excF = mofExc;
            if (name.equals ("NameNotResolved"))
                excR = mofExc;
        }
        
        iter = classC.getContents ().iterator ();
        excF.setContainer (classP);
        iter.next ();
        excF.setContainer (classN);
        while (iter.hasNext ())
            iter.next ();
        
        try {
            iter = classC.getContents ().iterator ();
            excF.setContainer (classC);
            excF.setContainer (classN);
            iter.next ();
            // CME should be thrown by iter.next () ...
            fail ("ConcurrentModificationException has not been thrown.");
        } catch (ConcurrentModificationException e) {
        }
        
        iter = classC.getContents ().iterator ();
        while (iter.hasNext ())
            iter.next ();
        
        Contains assoc = modelPackage.getContains ();
        List list = (List) assoc.refQuery ("container", classC);        
        list = null;
        System.gc ();
        list = (List) assoc.refQuery ("container", classC);        
        
        ListIterator listIter = list.listIterator ();
        Object obj = listIter.next ();
        listIter.remove ();
        Object obj2 = listIter.next ();        
        listIter.add (obj);
        Object obj3 = listIter.next ();        
    }
    
    public void test2 () {
        try {
            repository.beginTrans (true);
            int x;        
            MofClass main = generateClass ();
            for (x = 0; x < MAX; x++)
                generateClass ().setContainer (main);
            Contains assoc = modelPackage.getContains ();
            List list = (List) assoc.refQuery ("container", main);
            ListIterator iter = list.listIterator ();
            
            repository.endTrans ();
            repository.beginTrans (true);
            
            // test adding to and removing from the start of the list
            for (x = 0; x < MAX/10; x++)
                iter.add (generateClass ());
            for (x = 0; x < MAX/10; x++) {
                iter.next ();
                iter.remove ();
            }
                
            repository.endTrans ();
            repository.beginTrans (true);
            
            iter = list.listIterator ();
            Random random = new Random ();
            int size = MAX;
            for (x = 0; x < MAX/2; x++)
                iter.next ();
            for (x = 0; x < 4*MAX; x++) {
                int opCode = random.nextInt (5);
                switch (opCode) {
                    case 0:
                        if (iter.hasNext ())
                            iter.next ();
                    break;
                    case 1:
                        if (iter.hasPrevious ())
                            iter.previous ();
                    break;
                    case 2:
                        if (iter.hasNext ()) {
                            iter.next ();
                            iter.remove ();
                            size--;
                        } else if (iter.hasPrevious ()) {
                            iter.previous ();
                            iter.remove ();
                            size--;
                        }                    
                    break;
                    case 3:
                        if (iter.hasNext ()) {
                            iter.next ();
                            iter.set (generateClass ());
                        } else if (iter.hasPrevious ()) {
                            iter.previous ();
                            iter.set (generateClass ());
                        }                    
                    break;
                    case 4:
                        iter.add (generateClass ());
                        size++;
                    break;
                } // switch
            } // for
            if (list.size () != size)
                fail ("Counted list size does not match a value returned by size () method.");
        } catch (Exception e) {
            e.printStackTrace ();
            fail (e.getMessage ());
        } finally {
            repository.endTrans ();
        }
    }
    
    public void test3 () {
        try {
            repository.beginTrans (true);
            MofClass class_A = generateClass ();
            MofClass class_B = generateClass ();
            class_B.setContainer (class_A);
            for (int x = 0; x < 3; x++)
                generateClass ().setContainer (class_B);
            Contains assoc = modelPackage.getContains ();
            List list = (List) assoc.refQuery ("container", class_A);
            printListElements ((List) assoc.refQuery ("container", class_B));
            printListElements ((List) assoc.refQuery ("containedElement", class_B));
            Iterator iter = list.iterator ();
            iter.next ();
            iter.remove ();
            printListElements (list);
            printListElements ((List) assoc.refQuery ("container", class_B));
            printListElements ((List) assoc.refQuery ("containedElement", class_B));
            
            MofClass class_C = generateClass ();
            for (int x = 0; x < 100; x++)
                generateClass().setContainer(class_C);
            int index = -1;
            ListIterator liter = class_C.getContents().listIterator();
            for (int x = 0; x < 90; x++) {
                int val = random.nextInt (5);
                switch (val) {
                    case 0: 
                    case 1:
                        liter.add (generateClass());
                        index ++;
                        break;
                    case 2:
                    case 3:
                        liter.next ();
                        index ++;
                        break;
                    case 4:
                        if (index > 0) {
                            liter.previous ();
                            index--;
                        }
                } // switch
            } // for
            if (liter.nextIndex() != (index + 1))
                fail ();
            
        } catch (Exception e) {
            e.printStackTrace ();
            fail (e.getMessage ());
        } finally {
            repository.endTrans ();
        }
    }
    
    public void test4 () {
        try {
            repository.beginTrans (true);
            MofClass class_A = generateClass ();
            MofClass class_B = generateClass ();
            MofClass class_C = generateClass ();
            class_B.setContainer (class_A);
            for (int x = 0; x < 3; x++)
                generateClass ().setContainer (class_B);
            class_C.setContainer (class_B);
            
            Contains assoc = modelPackage.getContains ();
            
            printListElements ((List) assoc.refQuery ("container", class_B));
            printListElements ((List) assoc.refQuery ("containedElement", class_B));
            
            class_B.refDelete ();                        
            
            /*
            Contains assoc = modelPackage.getContains ();
            List list = (List) assoc.refQuery ("container", class_B);
            printListElements (list);
            Iterator iter = list.iterator ();
            while (iter.hasNext ()) {
                System.out.println("size: " + list.size ());
                iter.next ();
                iter.remove ();
            }
            System.out.println("size: " + list.size ());
            printListElements ((List) assoc.refQuery ("container", class_B));
            System.out.println("-------");
            */
        } catch (Exception e) {
            System.out.println(e);
            e.printStackTrace ();
            fail (e.getMessage ());
        } finally {
            repository.endTrans ();
        }
    }
            
    public void test5 () {
        ModelPackage pkg = (ModelPackage) createExtent(findMofPackage(modelPackage, "Model"), "Test");
        MofClassClass proxy = pkg.getMofClass ();
        // create random tree structure (in containment hierarchy) of instances of MofClass
        MofClass root = generateClass (proxy);
        int num = proxy.refAllOfClass ().size ();        
        generateTree (root, 4, proxy);
        deleteTree (root);
        if (proxy.refAllOfClass ().size () != 1)
            fail ();
        generateTree2 (root, 4, proxy);        
        deleteTree (root);
        if (proxy.refAllOfClass ().size () != 1)
            fail ();
    }
    
    private void generateTree (MofClass elem, int depth, MofClassClass proxy) {
        int sons = 1 + random.nextInt (7);
        for (int x = 0; x < sons; x++) {
            MofClass mofClass = generateClass (proxy);
            mofClass.setContainer (elem);
            if (depth > 0)
                generateTree (mofClass, depth - 1, proxy);
        }
    }
    
    private void generateTree2 (MofClass elem, int depth, MofClassClass proxy) {
        int sons = 4 + random.nextInt (5);
        ListIterator iter = elem.getContents ().listIterator ();
        for (int x = 0; x < sons; x++) {
            MofClass mofClass = generateClass (proxy); 
            iter.add (mofClass);
            if (depth > 0)
                generateTree (mofClass, depth - 1, proxy);
            if (random.nextBoolean()) {
                deleteTree (mofClass);
                iter.previous ();
                iter.remove ();
                mofClass.refDelete ();
            }
        }
    }
    
    private void deleteTree (MofClass node) {
        Collection subNodes = node.getContents();
        int size = subNodes.size();
        for (Iterator it = subNodes.iterator(); it.hasNext();) {
            MofClass subNode = (MofClass)it.next();            
            it.remove();
            deleteTree (subNode);
            subNode.refDelete();            
        }
    }
    
    private MofClass generateClass (MofClassClass proxy) {
        return proxy.createMofClass ("name" + counter++, "", true, true, true, VisibilityKindEnum.PUBLIC_VIS, true);
    }
    
    private MofClass generateClass () {
        MofClassClass proxy = modelPackage.getMofClass ();
        return proxy.createMofClass ("name" + counter++, "", true, true, true, VisibilityKindEnum.PUBLIC_VIS, true);
    }
        
    private void printListElements (List list) {
        /*
        Iterator iter = list.iterator ();
        System.out.println("list size: " + list.size () + " " + list.getClass ().getName ());
        while (iter.hasNext ()) {
            ModelElement element = (ModelElement) iter.next ();
            System.out.println((element != null ? element.getName () : "null") + " ");
        }
        System.out.println("");
         */
    }
    
}
... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.