/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.ejb3.test.asynchronous;

import org.jboss.aspects.asynch.AsynchProvider;
import org.jboss.aspects.asynch.Future;
import org.jboss.ejb3.JBossProxy;
import org.jboss.tm.TransactionManagerService;

import javax.naming.InitialContext;
import javax.naming.Context;
import javax.transaction.UserTransaction;
import javax.transaction.RollbackException;
import javax.transaction.TransactionManager;
import java.util.Collection;
import java.util.Iterator;

/**
 * @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
 * @version $Revision: 57207 $
 */
public class Tester implements TesterMBean
{
   public void testSLLocalAsynchronous() throws Exception
   {
      Context ctx = new InitialContext();
      StatelessLocal tester =
            (StatelessLocal) ctx.lookup("StatelessBean/local");
      int ret = tester.method(111);
      if (ret != 111) throw new RuntimeException("Wrong return for stateless local "+ ret);

      StatelessLocal asynchTester = (StatelessLocal)((JBossProxy)tester).getAsynchronousProxy();
      ret = asynchTester.method(112);
      if (ret != 0) throw new RuntimeException("Wrong return value for stateless local "+ ret);
      AsynchProvider ap = (AsynchProvider) asynchTester;
      Future future = ap.getFuture();
      ret = (Integer) future.get();
      if (ret != 112) throw new RuntimeException("Wrong async return value for stateless local "+ ret);
   }


   public void testSFLocalAsynchronous() throws Exception
   {
      Context ctx = new InitialContext();
      StatefulLocal tester =
            (StatefulLocal) ctx.lookup("StatefulBean/local");
      int ret = tester.method(121);
      if (ret != 121) throw new RuntimeException("Wrong return for stateful local "+ ret);

      StatefulLocal asynchTester = (StatefulLocal)((JBossProxy)tester).getAsynchronousProxy();
      ret = asynchTester.method(122);
      if (ret != 0) throw new RuntimeException("Wrong return value for stateful local "+ ret);
      AsynchProvider ap = (AsynchProvider) asynchTester;
      Future future = ap.getFuture();
      ret = (Integer) future.get();
      if (ret != 122) throw new RuntimeException("Wrong async return value for stateful local "+ ret);
   }

   public void testServiceLocalAsynchronous() throws Exception
   {
      Context ctx = new InitialContext();
      ServiceLocal tester =
            (ServiceLocal) ctx.lookup("ServiceBean/local");
      int ret = tester.method(131);
      if (ret != 131) throw new RuntimeException("Wrong return for service local "+ ret);

      ServiceLocal asynchTester = (ServiceLocal)((JBossProxy)tester).getAsynchronousProxy();
      ret = asynchTester.method(132);
      if (ret != 0) throw new RuntimeException("Wrong return value for service local "+ ret);
      AsynchProvider ap = (AsynchProvider) asynchTester;
      Future future = ap.getFuture();
      ret = (Integer) future.get();
      if (ret != 132) throw new RuntimeException("Wrong async return value for service local "+ ret);
   }

   public void testLocalAsynchTransaction() throws Exception
   {
      InitialContext ctx = new InitialContext();
      TxSessionLocal tester = (TxSessionLocal) ctx.lookup("TxSessionBean/local");
      TxSessionLocal asynchTester = (TxSessionLocal)((JBossProxy)tester).getAsynchronousProxy();
      AsynchProvider ap = (AsynchProvider) asynchTester;
      TransactionManager tx = (TransactionManager) ctx.lookup(TransactionManagerService.JNDI_NAME);

      //Add some entries in different threads and commit
      tx.begin();
      tester.createFruit("apple", false);
      tester.createFruit("pear", false);
      tester.createFruit("tomato", false);

      asynchTester.createVeg("Potato", false);
      waitForProvider(ap);
      asynchTester.createVeg("Turnip", false);
      waitForProvider(ap);
      asynchTester.createVeg("Carrot", false);
      waitForProvider(ap);
      tx.commit();

      tx.begin();
      Collection entries = tester.getEntries();
      tx.commit();
      if (entries.size() != 6) throw new RuntimeException("Wrong number of entries, should have been 6, have: " + entries.size());

      //Cleanup synchronously
      tx.begin();
      tester.cleanAll();
      tx.commit();

      tx.begin();
      entries = tester.getEntries();
      tx.commit();
      if (entries.size() != 0) throw new RuntimeException("Wrong number of entries, should have been 0, have: " + entries.size());

      //Add some entries in different threads and rollback
      tx.begin();
      tester.createFruit("apple", false);
      tester.createFruit("pear", false);
      tester.createFruit("tomato", false);

      asynchTester.createVeg("Potato", false);
      waitForProvider(ap);
      asynchTester.createVeg("Turnip", false);
      waitForProvider(ap);
      asynchTester.createVeg("Carrot", false);
      waitForProvider(ap);
      tx.rollback();

      tx.begin();
      entries = tester.getEntries();
      tx.commit();

      if (entries.size() != 0) throw new RuntimeException("Wrong number of entries, should have been 0, have: " + entries.size());

      //Add some entries in different threads and rollback from within Tx
      tx.begin();
      tester.createFruit("apple", false);
      tester.createFruit("pear", false);
      tester.createFruit("tomato", true);

      asynchTester.createVeg("Potato", false);
      waitForProvider(ap);
      asynchTester.createVeg("Turnip", false);
      waitForProvider(ap);
      asynchTester.createVeg("Carrot", true);
      waitForProvider(ap);

      boolean rollbackException = false;
      try
      {
         tx.commit();
      }
      catch(RollbackException e)
      {
         rollbackException = true;
      }

      if (!rollbackException) throw new RuntimeException("RollbackException not picked up");

      tx.begin();
      entries = tester.getEntries();
      tx.commit();
      if (entries.size() != 0) throw new RuntimeException("Wrong number of entries, should have been 0, have: " + entries.size());
   }

   private void waitForProvider(AsynchProvider provider) throws InterruptedException
   {
      Future future = provider.getFuture();
      waitForFuture(future);
   }

   private void waitForFuture(Future future) throws InterruptedException
   {
      while (!future.isDone())
      {
         Thread.sleep(100);
      }
   }

}