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package com.sun.enterprise.resource.allocator;
import javax.transaction.xa.XAResource;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.resource.spi.*;
import javax.resource.ResourceException;
import javax.security.auth.Subject;
import java.util.logging.*;
import com.sun.enterprise.deployment.ConnectorDescriptor;
import com.sun.enterprise.resource.pool.PoolManager;
import com.sun.enterprise.transaction.api.JavaEETransaction;
import com.sun.enterprise.resource.*;
import com.sun.enterprise.resource.listener.ConnectionEventListener;
import com.sun.enterprise.resource.listener.LocalTxConnectionEventListener;
import com.sun.appserv.connectors.internal.api.PoolingException;
/**
* @author Tony Ng
*/
public class LocalTxConnectorAllocator extends AbstractConnectorAllocator {
protected boolean shareable = true;
public LocalTxConnectorAllocator(PoolManager poolMgr,
ManagedConnectionFactory mcf,
ResourceSpec spec,
Subject subject,
ConnectionRequestInfo reqInfo,
ClientSecurityInfo info,
ConnectorDescriptor desc, boolean shareable) {
super(poolMgr, mcf, spec, subject, reqInfo, info, desc);
this.shareable = shareable;
}
private static String transactionCompletionMode;
private static final String COMMIT = "COMMIT";
private static final String ROLLBACK = "ROLLBACK";
static{
transactionCompletionMode = System.getProperty("com.sun.enterprise.in-progress-local-transaction.completion-mode");
}
public ResourceHandle createResource()
throws PoolingException {
try {
ManagedConnection mc = mcf.createManagedConnection(subject, reqInfo);
ResourceHandle resource = createResourceHandle(mc, spec, this, info);
ConnectionEventListener l = new LocalTxConnectionEventListener(resource);
mc.addConnectionEventListener(l);
resource.setListener(l);
XAResource xares = new ConnectorXAResource(resource, spec, this, info);
resource.fillInResourceObjects(null, xares);
return resource;
} catch (ResourceException ex) {
Object[] params = new Object[]{spec.getPoolInfo(), ex.toString()};
_logger.log(Level.WARNING, "poolmgr.create_resource_error", params);
if(_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Resource Exception while creating resource", ex);
}
if (ex.getLinkedException() != null) {
_logger.log(Level.WARNING,
"poolmgr.create_resource_linked_error", ex
.getLinkedException().toString());
}
throw new PoolingException(ex);
}
}
public void fillInResourceObjects(ResourceHandle resource)
throws PoolingException {
try {
ManagedConnection mc = (ManagedConnection) resource.getResource();
Object con = mc.getConnection(subject, reqInfo);
ConnectorXAResource xares = (ConnectorXAResource) resource.getXAResource();
xares.setUserHandle(con);
resource.fillInResourceObjects(con, xares);
} catch (ResourceException ex) {
throw new PoolingException(ex);
}
}
public void destroyResource(ResourceHandle resource)
throws PoolingException {
try {
ManagedConnection mc = (ManagedConnection) resource.getResource();
ConnectorXAResource.freeListener(mc);
XAResource xares = resource.getXAResource();
forceTransactionCompletion(xares);
mc.destroy();
if (_logger.isLoggable(Level.FINEST)) {
_logger.finest("destroyResource for LocalTxConnectorAllocator done");
}
} catch (Exception ex) {
throw new PoolingException(ex);
}
}
private void forceTransactionCompletion(XAResource xares) throws SystemException {
if(transactionCompletionMode != null){
if(xares instanceof ConnectorXAResource){
ConnectorXAResource connectorXARes = (ConnectorXAResource)xares;
JavaEETransaction j2eetran = connectorXARes.getAssociatedTransaction();
if(j2eetran != null && j2eetran.isLocalTx()){
if(j2eetran.getStatus() == (Status.STATUS_ACTIVE)){
try{
if(transactionCompletionMode.equalsIgnoreCase(COMMIT)){
if(_logger.isLoggable(Level.FINEST)){
_logger.log(Level.FINEST,"Transaction Completion Mode for LocalTx resource is " +
"set as COMMIT, committing transaction");
}
j2eetran.commit();
}else if(transactionCompletionMode.equalsIgnoreCase(ROLLBACK)){
if(_logger.isLoggable(Level.FINEST)){
_logger.log(Level.FINEST,"Transaction Completion Mode for LocalTx resource is " +
"set as ROLLBACK, rolling back transaction");
}
j2eetran.rollback();
}else{
_logger.log(Level.WARNING,"Unknown transaction completion mode, no action made");
}
}catch(Exception e){
_logger.log(Level.WARNING, "Failure while forcibily completing an incomplete, " +
"local transaction ", e);
}
}
}
}
}
}
public boolean shareableWithinComponent() {
return shareable;
}
}