/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.ejb.hessian;
import com.caucho.vfs.Path;
import com.caucho.vfs.Vfs;
import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Resource
*/
public class HessianXAResource implements XAResource {
private static final Logger log
= Logger.getLogger(HessianXAResource.class.getName());
private String _url;
private Path _path;
public HessianXAResource(String url)
{
_url = url;
_path = Vfs.lookup(url);
}
public boolean isSameRM(XAResource xares)
{
if (! (xares instanceof HessianXAResource))
return false;
HessianXAResource rm = (HessianXAResource) xares;
return _url.equals(rm._url);
}
public void start(Xid xid, int flags)
throws XAException
{
}
public void end(Xid xid, int flags)
throws XAException
{
}
public boolean setTransactionTimeout(int seconds)
throws XAException
{
return true;
}
public int getTransactionTimeout()
throws XAException
{
return 0;
}
public int prepare(Xid xid)
throws XAException
{
try {
//Object value = MetaStub.call(_path, "prepare", xidToString(xid));
} catch (Throwable e) {
log.log(Level.WARNING, e.toString(), e);
throw new XAException(e.toString());
}
// also rdonly
return XA_OK;
}
public Xid[]recover(int flag)
throws XAException
{
// XXX: should query
return null;
}
public void forget(Xid xid)
throws XAException
{
}
public void rollback(Xid xid)
throws XAException
{
try {
//MetaStub.call(_path, "rollback", xidToString(xid));
} catch (Throwable e) {
log.log(Level.WARNING, e.toString(), e);
throw new XAException(e.toString());
}
}
public void commit(Xid xid, boolean onephase)
throws XAException
{
try {
/*
if (onephase)
MetaStub.call(_path, "commitOnePhase", xidToString(xid));
else
MetaStub.call(_path, "commit", xidToString(xid));
*/
} catch (Throwable e) {
log.log(Level.WARNING, e.toString(), e);
throw new XAException(e.toString());
}
}
private static String xidToString(Xid xid)
{
byte []id = xid.getGlobalTransactionId();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < id.length; i++) {
byte b = id[i];
sb.append(toHex((b >> 4) & 0xf));
sb.append(toHex(b & 0xf));
}
return sb.toString();
}
private static char toHex(int d)
{
if (d < 10)
return (char) ('0' + d);
else
return (char) ('a' + d - 10);
}
}