/*
* 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.sql.spy;
import com.caucho.util.Alarm;
import com.caucho.util.L10N;
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;
/**
* Spying on a connection.
*/
public class SpyXAResource implements XAResource {
protected final static Logger log
= Logger.getLogger(SpyXAResource.class.getName());
protected final static L10N L = new L10N(SpyXAResource.class);
// The underlying resource
private XAResource _xaResource;
private String _id;
/**
* Creates a new SpyXAResource
*/
public SpyXAResource(String id, XAResource resource)
{
_xaResource = resource;
_id = id;
}
/**
* Returns the underlying resource.
*/
public XAResource getXAResource()
{
return _xaResource;
}
protected long start()
{
return Alarm.getExactTime();
}
protected void log(long start, String msg)
{
long delta = Alarm.getExactTime() - start;
log.fine("[" + delta + "ms] " + _id + ":" + msg);
}
/**
* Sets the transaction timeout.
*/
@Override
public boolean setTransactionTimeout(int seconds)
throws XAException
{
long start = start();
try {
boolean ok = _xaResource.setTransactionTimeout(seconds);
if (log.isLoggable(Level.FINE))
log(start, "set-transaction-timeout(" + seconds + ")->" + ok);
return ok;
} catch (XAException e) {
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Gets the transaction timeout.
*/
@Override
public int getTransactionTimeout()
throws XAException
{
long start = start();
try {
int seconds = _xaResource.getTransactionTimeout();
if (log.isLoggable(Level.FINE))
log(start, "transaction-timeout()->" + seconds);
return seconds;
} catch (XAException e) {
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Returns true if the underlying RM is the same.
*/
@Override
public boolean isSameRM(XAResource resource)
throws XAException
{
long start = start();
try {
if (resource instanceof SpyXAResource)
resource = ((SpyXAResource) resource).getXAResource();
boolean same = _xaResource.isSameRM(resource);
if (log.isLoggable(Level.FINE))
log(start, "is-same-rm(resource=" + resource + ")->" + same);
return same;
} catch (XAException e) {
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Starts the resource.
*/
@Override
public void start(Xid xid, int flags)
throws XAException
{
long start = start();
try {
_xaResource.start(xid, flags);
if (log.isLoggable(Level.FINE)) {
String flagName = "";
if ((flags & TMJOIN) != 0)
flagName += ",join";
if ((flags & TMRESUME) != 0)
flagName += ",resume";
log(start, "start(xid=" + xid + flagName + ")");
}
} catch (XAException e) {
log(start, "exn-start(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log(start, "exn-start(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Starts the resource.
*/
@Override
public void end(Xid xid, int flags)
throws XAException
{
long start = start();
try {
_xaResource.end(xid, flags);
if (log.isLoggable(Level.FINE)) {
String flagName = "";
if ((flags & TMFAIL) != 0)
flagName += ",fail";
if ((flags & TMSUSPEND) != 0)
flagName += ",suspend";
log(start, "end(xid=" + xid + flagName + ")");
}
} catch (XAException e) {
log.log(Level.FINE, e.toString(), e);
log(start, "exn-end(" + xid + ") -> " + e);
throw e;
} catch (RuntimeException e) {
log(start, "exn-end(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Rolls the resource back
*/
@Override
public int prepare(Xid xid)
throws XAException
{
long start = start();
try {
int value = _xaResource.prepare(xid);
if (log.isLoggable(Level.FINE))
log(start, "prepare(xid=" + xid + ")->" + value);
return value;
} catch (XAException e) {
log(start, "exn-prepare(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log(start, "exn-prepare(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Commits the resource
*/
@Override
public void commit(Xid xid, boolean onePhase)
throws XAException
{
long start = start();
try {
_xaResource.commit(xid, onePhase);
if (log.isLoggable(Level.FINE))
log(start, "commit(xid=" + xid + (onePhase ? ",1P)" : ",2P)"));
} catch (XAException e) {
log(start, "exn-commit(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log(start, "exn-commit(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Rolls the resource back
*/
@Override
public void rollback(Xid xid)
throws XAException
{
long start = start();
try {
_xaResource.rollback(xid);
if (log.isLoggable(Level.FINE))
log(start, "rollback(xid=" + xid + ")");
} catch (XAException e) {
log(start, "exn-rollback(xid) -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log(start, "exn-rollback(xid) -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Rolls the resource back
*/
@Override
public Xid []recover(int flags)
throws XAException
{
long start = start();
try {
Xid [] xids = _xaResource.recover(flags);
if (log.isLoggable(Level.FINE)){
String flagString = "";
if ((flags & XAResource.TMSTARTRSCAN) != 0)
flagString += "start";
if ((flags & XAResource.TMENDRSCAN) != 0) {
if (! flagString.equals(""))
flagString += ",";
flagString += "end";
}
log(start, "recover(flags=" + flagString + ")");
}
return xids;
} catch (XAException e) {
log(start, "exn-recover() " + e);
log.fine(e.toString());
throw e;
} catch (RuntimeException e) {
log(start, "exn-recover() " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
/**
* Forgets the transaction
*/
@Override
public void forget(Xid xid)
throws XAException
{
long start = start();
try {
_xaResource.forget(xid);
if (log.isLoggable(Level.FINE))
log(start, "forget(xid=" + xid + ")");
} catch (XAException e) {
log(start, "exn-force(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
} catch (RuntimeException e) {
log(start, "exn-force(" + xid + ") -> " + e);
log.log(Level.FINE, e.toString(), e);
throw e;
}
}
@Override
public String toString()
{
return (getClass().getSimpleName()
+ "[id=" + _id + ",resource=" + _xaResource + "]");
}
}