package com.arjuna.mwlabs.wst.at;
import com.arjuna.mw.wst.TxContext;
import com.arjuna.wsc.InvalidCreateParametersException;
import com.arjuna.wsc.ContextFactoryMapper;
import com.arjuna.mwlabs.wscf.model.twophase.arjunacore.subordinate.SubordinateCoordinator;
import com.arjuna.mwlabs.wst.at.context.TxContextImple;
import com.arjuna.webservices.wscoor.CoordinationContextType;
import com.arjuna.webservices.wsat.AtomicTransactionConstants;
import java.util.HashMap;
/**
* class to manage association of incoming AT transactions with subordinate AT transactions
* coordinated by the local coordination servcie
*/
public class SubordinateImporter
{
private static HashMap<String, TxContext> subordinateContextMap = new HashMap<String, TxContext>();
/**
* handle on the local 1.1 context factory implementation
*/
private static ContextFactoryImple atContextFactory = (ContextFactoryImple) ContextFactoryMapper.getFactory().getContextFactory(AtomicTransactionConstants.WSAT_PROTOCOL);
public static TxContext importContext(CoordinationContextType cc)
{
// get the subordinate transaction manager to install any existing
// subordinate tx for this one or create and install a new one.
final String identifier = cc.getIdentifier().getValue();
TxContext subordinateTxContext = subordinateContextMap.get(identifier);
if (subordinateTxContext == null) {
// create a context for a local coordinator
CoordinationContextType context = null;
try {
context = atContextFactory.create(AtomicTransactionConstants.WSAT_PROTOCOL, 0L, cc);
} catch (InvalidCreateParametersException e) {
// should not happen
}
subordinateTxContext = new TxContextImple(context);
subordinateContextMap.put(identifier, subordinateTxContext);
// register a cleanup callback with the subordinate transactionso that the entry gets removed
// when the transcation commits or rolls back
String subordinateId = context.getIdentifier().getValue().substring(4); // remove "urn:" prefix
SubordinateCoordinator.SubordinateCallback callback = new SubordinateCoordinator.SubordinateCallback() {
public String parentId = identifier;
public void run()
{
subordinateContextMap.remove(parentId);
}
};
SubordinateCoordinator.addCallback(subordinateId, callback);
}
return subordinateTxContext;
}
}