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package com.sun.enterprise.resource.allocator;
import java.util.logging.Level;
import javax.transaction.xa.XAResource;
import javax.resource.spi.*;
import javax.resource.ResourceException;
import javax.security.auth.Subject;
import com.sun.enterprise.deployment.ConnectorDescriptor;
import com.sun.enterprise.resource.pool.PoolManager;
import com.sun.enterprise.resource.ResourceHandle;
import com.sun.enterprise.resource.ResourceSpec;
import com.sun.enterprise.resource.ClientSecurityInfo;
import com.sun.appserv.connectors.internal.api.PoolingException;
/**
* @author Tony Ng
*/
public class ConnectorAllocator extends AbstractConnectorAllocator {
private boolean shareable;
class ConnectionListenerImpl extends com.sun.enterprise.resource.listener.ConnectionEventListener {
private ResourceHandle resource;
public ConnectionListenerImpl(ResourceHandle resource) {
this.resource = resource;
}
public void connectionClosed(ConnectionEvent evt) {
if (resource.hasConnectionErrorOccurred()) {
return;
}
resource.decrementCount();
if (resource.getShareCount() == 0) {
poolMgr.resourceClosed(resource);
}
}
/**
* Resource adapters will signal that the connection being closed is bad.
*
* @param evt ConnectionEvent
*/
public void badConnectionClosed(ConnectionEvent evt) {
if (resource.hasConnectionErrorOccurred()) {
return;
}
resource.decrementCount();
if (resource.getShareCount() == 0) {
ManagedConnection mc = (ManagedConnection) evt.getSource();
mc.removeConnectionEventListener(this);
poolMgr.badResourceClosed(resource);
}
}
/**
* Resource adapters will signal that the connection is being aborted.
*
* @param evt ConnectionEvent
*/
public void connectionAbortOccurred(ConnectionEvent evt) {
resource.setConnectionErrorOccurred();
ManagedConnection mc = (ManagedConnection) evt.getSource();
mc.removeConnectionEventListener(this);
poolMgr.resourceAbortOccurred(resource);
}
public void connectionErrorOccurred(ConnectionEvent evt) {
resource.setConnectionErrorOccurred();
ManagedConnection mc = (ManagedConnection) evt.getSource();
mc.removeConnectionEventListener(this);
poolMgr.resourceErrorOccurred(resource);
/*
try {
mc.destroy();
} catch (Exception ex) {
// ignore exception
}
*/
}
public void localTransactionStarted(ConnectionEvent evt) {
// no-op
}
public void localTransactionCommitted(ConnectionEvent evt) {
// no-op
}
public void localTransactionRolledback(ConnectionEvent evt) {
// no-op
}
}
public ConnectorAllocator(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;
}
public ResourceHandle createResource()
throws PoolingException {
try {
ManagedConnection mc =
mcf.createManagedConnection(subject, reqInfo);
ResourceHandle resource =
createResourceHandle(mc, spec, this, info);
ConnectionEventListener l =
new ConnectionListenerImpl(resource);
mc.addConnectionEventListener(l);
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);
resource.incrementCount();
XAResource xares = mc.getXAResource();
resource.fillInResourceObjects(con, xares);
} catch (ResourceException ex) {
throw new PoolingException(ex);
}
}
public void destroyResource(ResourceHandle resource)
throws PoolingException {
try {
closeUserConnection(resource);
} catch (Exception ex) {
// ignore error
}
try {
ManagedConnection mc = (ManagedConnection) resource.getResource();
mc.destroy();
} catch (Exception ex) {
throw new PoolingException(ex);
}
}
public boolean shareableWithinComponent() {
return shareable;
}
}