com.atomikos.datasource.pool.ConnectionPoolWithSynchronizedValidation Maven / Gradle / Ivy
/**
* Copyright (C) 2000-2020 Atomikos
*
* LICENSE CONDITIONS
*
* See http://www.atomikos.com/Main/WhichLicenseApplies for details.
*/
package com.atomikos.datasource.pool;
import java.util.Iterator;
import com.atomikos.logging.Logger;
import com.atomikos.logging.LoggerFactory;
/**
* Copyright (C) 2000-2017 Atomikos
*
* LICENSE CONDITIONS
*
* See http://www.atomikos.com/Main/WhichLicenseApplies for details.
*/
public class ConnectionPoolWithSynchronizedValidation extends ConnectionPool {
private static final Logger LOGGER = LoggerFactory.createLogger(ConnectionPoolWithSynchronizedValidation.class);
public ConnectionPoolWithSynchronizedValidation(
ConnectionFactory connectionFactory,
ConnectionPoolProperties properties) throws ConnectionPoolException {
super(connectionFactory, properties);
}
@Override
public synchronized ConnectionType borrowConnection() throws CreateConnectionException , PoolExhaustedException, ConnectionPoolException
{
return super.borrowConnection();
}
protected ConnectionType recycleConnectionIfPossible() throws Exception
{
ConnectionType ret = null;
for (int i = 0; i < totalSize(); i++) {
XPooledConnection xpc = connections.get(i);
if (xpc.canBeRecycledForCallingThread()) {
ret = xpc.createConnectionProxy();
if ( LOGGER.isTraceEnabled() ) LOGGER.logTrace( this + ": recycling connection from pool..." );
return ret;
}
}
return ret;
}
protected ConnectionType retrieveFirstAvailableConnection() {
ConnectionType ret = null;
Iterator> it = connections.iterator();
while ( it.hasNext() && ret == null ) {
XPooledConnection xpc = it.next();
if (xpc.isAvailable()) {
try {
ret = xpc.createConnectionProxy();
if ( LOGGER.isTraceEnabled() ) LOGGER.logTrace( this + ": got connection from pool");
} catch ( CreateConnectionException ex ) {
String msg = this + ": error creating proxy of connection " + xpc;
LOGGER.logDebug( msg , ex);
it.remove();
destroyPooledConnection(xpc, false);
} finally {
logCurrentPoolSize();
}
}
}
return ret;
}
}