Examples with XAXactId org.apache.derby.iapi.store.access.xa.XAXactId used on opensource projects

Example 1 with XAXactId

use of org.apache.derby.iapi.store.access.xa.XAXactId in project derby by apache.

the class DRDAXAProtocol method rollbackCurrentTransaction.

/**
 * This function rollbacks the current global transaction associated
 * with the XAResource or a local transaction. The function should
 * be called only in exceptional cases - like client socket
 * is closed.
 */
void rollbackCurrentTransaction() {
    if (xid != null) {
        boolean local = (xid.getFormatId() == -1);
        if (!local) {
            try {
                XAXactId xid_im = new XAXactId(xid);
                getResourceAdapter().cancelXATransaction(xid_im, MessageId.CONN_CLOSE_XA_TRANSACTION_ROLLED_BACK);
            } catch (XAException e) {
                Monitor.logThrowable(e);
            }
        } else {
            try {
                rollbackTransaction(xid, false);
            } catch (DRDAProtocolException e) {
                // because we do not dump any DRDA stuff to the socket
                // the exception can not be thrown in this case
                // However, we will log the exception to the monitor
                Monitor.logThrowable(e);
            }
        }
        xid = null;
    }
}

Example 2 with XAXactId

use of org.apache.derby.iapi.store.access.xa.XAXactId in project derby by apache.

the class EmbedXAResource method forget.

/**
 * Tell the resource manager to forget about a heuristically completed
 * transaction branch.
 *
 * @param xid A global transaction identifier
 * @exception XAException An error has occurred. Possible exception values
 * are XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
 */
public final synchronized void forget(Xid xid) throws XAException {
    checkXAActive();
    // ensure immtable and correct equals method.
    XAXactId xid_im = new XAXactId(xid);
    XATransactionState tranState = getTransactionState(xid_im);
    if (tranState == null) {
        XAResourceManager rm = ra.getXAResourceManager();
        ContextManager inDoubtCM = rm.find(xid);
        // RM also does not know about this xid.
        if (inDoubtCM == null)
            throw new XAException(XAException.XAER_NOTA);
        ContextService csf = getContextService();
        csf.setCurrentContextManager(inDoubtCM);
        try {
            rm.forget(inDoubtCM, xid_im);
            // close the connection/transaction since it can never be used again.
            inDoubtCM.cleanupOnError(StandardException.closeException(), false);
            return;
        } catch (StandardException se) {
            // The rm threw an exception, clean it up in the approprate
            // context.  There is no transactionResource to handle the
            // exception for us.
            inDoubtCM.cleanupOnError(se, con.isActive());
            throw wrapInXAException(se);
        } finally {
            csf.resetCurrentContextManager(inDoubtCM);
        }
    }
    // DERBY-1016; if the transaction exists throw XAER_PROTO on forget
    throw new XAException(XAException.XAER_PROTO);
}

Example 3 with XAXactId

use of org.apache.derby.iapi.store.access.xa.XAXactId in project derby by apache.

the class EmbedXAResource method rollback.

/**
 * Inform the resource manager to roll back work done on behalf of a
 * transaction branch
 *
 * @param xid A global transaction identifier
 * @exception XAException - An error has occurred
 */
public final synchronized void rollback(Xid xid) throws XAException {
    checkXAActive();
    // ensure immtable and correct equals method.
    XAXactId xid_im = new XAXactId(xid);
    XATransactionState tranState = getTransactionState(xid_im);
    if (tranState == null) {
        XAResourceManager rm = ra.getXAResourceManager();
        ContextManager inDoubtCM = rm.find(xid);
        // RM also does not know about this xid.
        if (inDoubtCM == null)
            throw new XAException(XAException.XAER_NOTA);
        ContextService csf = getContextService();
        csf.setCurrentContextManager(inDoubtCM);
        try {
            rm.rollback(inDoubtCM, xid_im);
            // close the connection/transaction since it can never be used again.
            inDoubtCM.cleanupOnError(StandardException.closeException(), false);
            return;
        } catch (StandardException se) {
            // The rm threw an exception, clean it up in the approprate
            // context.  There is no transactionResource to handle the
            // exception for us.
            inDoubtCM.cleanupOnError(se, con.isActive());
            throw wrapInXAException(se);
        } finally {
            csf.resetCurrentContextManager(inDoubtCM);
        }
    }
    synchronized (tranState) {
        // any XAResource.
        switch(tranState.associationState) {
            case XATransactionState.T0_NOT_ASSOCIATED:
            case XATransactionState.TRO_FAIL:
                break;
            default:
                throw new XAException(XAException.XAER_PROTO);
        }
        if (tranState.suspendedList != null && tranState.suspendedList.size() != 0)
            throw new XAException(XAException.XAER_PROTO);
        checkUserCredentials(tranState.creatingResource);
        try {
            tranState.xa_rollback();
        } catch (SQLException sqle) {
            throw wrapInXAException(sqle);
        } finally {
            returnConnectionToResource(tranState, xid_im);
        }
    }
}

Example 4 with XAXactId

use of org.apache.derby.iapi.store.access.xa.XAXactId in project derby by apache.

the class ResourceAdapterImpl method boot.

/*
	 * Module control
	 */
public void boot(boolean create, Properties properties) throws StandardException {
    // we can only run on jdk1.2 or beyond with JTA and JAVA 20 extension
    // loaded.
    connectionTable = new Hashtable<XAXactId, XATransactionState>();
    AccessFactory af = (AccessFactory) findServiceModule(this, AccessFactory.MODULE);
    rm = (XAResourceManager) af.getXAResourceManager();
    active = true;
}

Example 5 with XAXactId

use of org.apache.derby.iapi.store.access.xa.XAXactId in project derby by apache.

the class XactXAResourceManager method recover.

/**
 * This method is called to obtain a list of prepared transactions.
 * <p>
 * This call returns a complete list of global transactions which are
 * either prepared or heuristically complete.
 * <p>
 * The XAResource interface expects a scan type interface, but our
 * implementation only returns a complete list of transactions.  So to
 * simulate the scan the following state is maintained.  If TMSTARTSCAN
 * is specified the complete list is returned.  If recover is called with
 * TMNOFLAGS is ever called a 0 length array is returned.
 *
 * @return Return a array with 0 or more Xid's which are currently in
 *         prepared or heuristically completed state.  If an error occurs
 *         during the operation, an appropriate error is thrown.
 *
 * @param flags    combination of the following flags
 *                 XAResource.{TMSTARTRSCAN,TMENDRSCAN,TMNOFLAGS}.
 *                 TMNOFLAGS must be used when no other flags are used.
 *
 * @exception  StandardException  Standard exception policy.
 */
public Xid[] recover(int flags) throws StandardException {
    XAXactId[] ret_xid_list;
    if ((flags & XAResource.TMSTARTRSCAN) != 0) {
        final ArrayList<XAXactId> xid_list = new ArrayList<XAXactId>();
        // Create a visitor that adds each of the prepared transactions
        // to xid_list.
        final TransactionTable.EntryVisitor visitor = new TransactionTable.EntryVisitor() {

            public boolean visit(TransactionTableEntry entry) {
                Xact xact = entry.getXact();
                if (xact.isPrepared()) {
                    GlobalXactId xa_id = (GlobalXactId) xact.getGlobalId();
                    xid_list.add(new XAXactId(xa_id.getFormat_Id(), xa_id.getGlobalTransactionId(), xa_id.getBranchQualifier()));
                }
                // scan the entire transaction table
                return true;
            }
        };
        // Collect the prepared transactions.
        transaction_table.visitEntries(visitor);
        // Convert the list to an array suitable for being returned.
        ret_xid_list = new XAXactId[xid_list.size()];
        ret_xid_list = (XAXactId[]) xid_list.toArray(ret_xid_list);
    } else {
        ret_xid_list = new XAXactId[0];
    }
    return (ret_xid_list);
}