/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 2 of the License.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.bck2brwsr.tck;

 import java.util.concurrent.atomic.AtomicBoolean;

 import java.util.concurrent.atomic.AtomicInteger;

 import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;

 import java.util.concurrent.atomic.AtomicLongFieldUpdater;

 import java.util.concurrent.atomic.AtomicReference;

 import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;

 import org.apidesign.bck2brwsr.vmtest.Compare;

 import org.apidesign.bck2brwsr.vmtest.VMTest;

 import org.testng.annotations.Factory;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 public class AtomicTest {

     private volatile int intValue;

     private static AtomicIntegerFieldUpdater<AtomicTest> intUpdater;

     static AtomicIntegerFieldUpdater<AtomicTest> getIntUpdater() {

         if (intUpdater == null) {

             intUpdater = AtomicIntegerFieldUpdater.newUpdater(AtomicTest.class, "intValue");

         }

         return intUpdater;

     }

     private volatile long longValue;

     private static AtomicLongFieldUpdater<AtomicTest> longUpdater;

     static AtomicLongFieldUpdater<AtomicTest> getLongUpdater() {

         if (longUpdater == null) {

             longUpdater = AtomicLongFieldUpdater.newUpdater(AtomicTest.class, "longValue");

         }

         return longUpdater;

     }

     private volatile Number refValue;

     private static AtomicReferenceFieldUpdater<AtomicTest,Number> refUpdater;

     static AtomicReferenceFieldUpdater<AtomicTest,Number> getRefUpdater() {

         if (refUpdater == null) {

             refUpdater = AtomicReferenceFieldUpdater.newUpdater(AtomicTest.class, Number.class, "refValue");

         }

         return refUpdater;

     }

     @Compare public boolean atomicBoolean() {

         AtomicBoolean ab = new AtomicBoolean();

         ab.set(true);

         return ab.compareAndSet(true, false);

     }

     @Compare public int atomicInt() {

         AtomicInteger ab = new AtomicInteger();

         ab.set(30);

         assert ab.compareAndSet(30, 10);

         return ab.get();

     }

     @Compare public String atomicRef() {

         AtomicReference<String> ar = new AtomicReference<String>("Ahoj");

         assert ar.compareAndSet("Ahoj", "Hello");

         return ar.getAndSet("Other");

     }

     @Compare public int intUpdater() {

         intValue = Integer.MAX_VALUE / 2;

         final AtomicIntegerFieldUpdater<AtomicTest> u = getIntUpdater();

         u.compareAndSet(this, 0, 10);

         u.addAndGet(this, 3);

         int thirteen = u.getAndAdd(this, 7);

         return thirteen + u.get(this);

     }

     @Compare public long longUpdater() {

         longValue = Long.MAX_VALUE / 2;

         final AtomicLongFieldUpdater<AtomicTest> u = getLongUpdater();

         u.compareAndSet(this, 0, 10);

         u.addAndGet(this, 3);

         long thirteen = u.getAndAdd(this, 7);

         return thirteen + u.get(this);

     }

     @Compare public int refUpdater() {

         final AtomicReferenceFieldUpdater<AtomicTest,Number> u = getRefUpdater();

         u.set(this, 0);

         u.compareAndSet(this, 0, 10);

         Number ten = u.getAndSet(this, 3);

         return u.get(this).intValue() + ten.intValue();

     }

     @Factory public static Object[] create() {

         return VMTest.create(AtomicTest.class);

     }

 }