/* * 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 javax.management.MBeanServer; import javax.management.ObjectName; import org.jboss.as.controller.AbstractWriteAttributeHandler; import org.jboss.as.controller.AttributeDefinition; import org.jboss.as.controller.OperationContext; import org.jboss.as.controller.PathAddress; import org.jboss.dmr.ModelNode; public class ParticipantWriteAttributeHandler extends AbstractWriteAttributeHandler<Void> { public ParticipantWriteAttributeHandler(final AttributeDefinition... definitions) { super(definitions); } @Override protected boolean applyUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName, ModelNode resolvedValue, ModelNode currentValue, HandbackHolder<Void> voidHandback) { ModelNode subModel = context.readResource(PathAddress.EMPTY_ADDRESS).getModel(); ModelNode onAttribute = subModel.get(LogStoreConstants.JMX_ON_ATTRIBUTE); String jmxName = onAttribute.asString(); MBeanServer mbs = TransactionExtension.getMBeanServer(context); try { ObjectName on = new ObjectName(jmxName); // Invoke operation mbs.invoke(on, "clearHeuristic", null, null); return true; } catch (Exception e) { return false; } } @Override protected void revertUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName, ModelNode valueToRestore, ModelNode resolvedValue, Void handback) { // no-op } }