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// **********************************************************************
//
// Copyright (c) 2003-2009 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package test.Freeze.evictor;
import test.Freeze.evictor.Test.*;
public class AccountI extends Account
{
public int
getBalance(Ice.Current current)
{
return balance;
}
public void
deposit(int amount, Ice.Current current)
throws InsufficientFundsException
{
//
// No need to synchronize since everything occurs within its own transaction
//
int newBalance = balance + amount;
if(newBalance < 0)
{
throw new InsufficientFundsException();
}
balance = newBalance;
}
public void
transfer(int amount, AccountPrx toAccount, Ice.Current current) throws InsufficientFundsException
{
test(_evictor.getCurrentTransaction() != null);
toAccount.deposit(amount); // collocated call
deposit(-amount, current); // direct call
}
public void
transfer2_async(AMD_Account_transfer2 cb, int amount, AccountPrx toAccount, Ice.Current current)
{
//
// Here the dispatch thread does everything
//
test(_evictor.getCurrentTransaction() != null);
try
{
toAccount.deposit(amount); // collocated call
deposit(-amount, current); // direct call
}
catch(InsufficientFundsException ex)
{
cb.ice_exception(ex);
return;
}
cb.ice_response();
}
public void
transfer3_async(final AMD_Account_transfer3 cb, int amount, AccountPrx toAccount, Ice.Current current)
{
//
// Here the dispatch thread does the actual work, but a separate thread sends the response
//
class ResponseThread extends Thread
{
synchronized void
response()
{
_response = true;
notify();
}
synchronized void
exception(Ice.UserException e)
{
_exception = e;
notify();
}
public synchronized void
run()
{
if(_response == false && _exception == null)
{
try
{
wait(1000);
}
catch(InterruptedException e)
{
}
}
try
{
test(_evictor.getCurrentTransaction() == null);
}
catch(Freeze.EvictorDeactivatedException ex)
{
//
// Clearly nobody is waiting for a response!
//
return;
}
if(_response)
{
cb.ice_response();
}
else if(_exception != null)
{
cb.ice_exception(_exception);
}
else
{
//
// We don't wait forever!
//
cb.ice_exception(new Ice.TimeoutException());
}
}
private boolean _response = false;
private Ice.UserException _exception;
};
ResponseThread thread = new ResponseThread();
thread.setDaemon(true);
test(_evictor.getCurrentTransaction() != null);
try
{
toAccount.deposit(amount); // collocated call
deposit(-amount, current); // direct call
}
catch(Ice.UserException e)
{
thread.start();
Thread.yield();
//
// Need to rollback here -- "rollback on user exception" does not work
// when the dispatch commits before it gets any response!
//
_evictor.getCurrentTransaction().rollback();
thread.exception(e);
return;
}
thread.start();
Thread.yield();
thread.response();
}
public
AccountI(int initialBalance, Freeze.TransactionalEvictor evictor)
{
super(initialBalance);
_evictor = evictor;
}
public
AccountI()
{
}
public void
init(Freeze.TransactionalEvictor evictor)
{
assert _evictor == null;
_evictor = evictor;
}
private Freeze.TransactionalEvictor _evictor;
private static void
test(boolean b)
{
if(!b)
{
throw new RuntimeException();
}
}
}
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