/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.txn.subsystem;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.registry.Resource;
import org.jboss.dmr.ModelNode;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
/**
* Operation handler for removing transaction logs from the TM and from the subsystem model
*/
public class LogStoreTransactionDeleteHandler implements OperationStepHandler {
// Generic failure reason if we cannot determine a more specific cause
static final String LOG_DELETE_FAILURE_MESSAGE = "Unable to remove transaction log";
private LogStoreResource logStoreResource = null;
LogStoreTransactionDeleteHandler(LogStoreResource resource) {
this.logStoreResource = resource;
}
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
MBeanServer mbs = TransactionExtension.getMBeanServer(context);
final Resource resource = context.readResourceForUpdate(PathAddress.EMPTY_ADDRESS);
try {
final ObjectName on = LogStoreResource.getObjectName(resource);
// Invoke operation
Object res = mbs.invoke(on, "remove", null, null);
try {
// validate that the MBean was removed:
mbs.getObjectInstance(on);
String reason = res != null ? res.toString() : LOG_DELETE_FAILURE_MESSAGE;
throw new OperationFailedException(reason);
} catch (InstanceNotFoundException e) {
// success, the MBean was deleted
final PathAddress address = PathAddress.pathAddress(operation.require(ModelDescriptionConstants.OP_ADDR));
final PathElement element = address.getLastElement();
logStoreResource.removeChild(element);
}
} catch (OperationFailedException e) {
throw e;
} catch (Exception e) {
throw new OperationFailedException(e.getMessage());
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}