/jboss-as-7.1.1.Final/logging/src/main/java/org/jboss/as/logging/handlers/async/AsyncHandlerWriteAttributeHandler.java

 1/*
 2 * JBoss, Home of Professional Open Source.
 3 * Copyright 2011, Red Hat, Inc., and individual contributors
 4 * as indicated by the @author tags. See the copyright.txt file in the
 5 * distribution for a full listing of individual contributors.
 6 *
 7 * This is free software; you can redistribute it and/or modify it
 8 * under the terms of the GNU Lesser General Public License as
 9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22
23package org.jboss.as.logging.handlers.async;
24
25import static org.jboss.as.logging.CommonAttributes.OVERFLOW_ACTION;
26import static org.jboss.as.logging.CommonAttributes.QUEUE_LENGTH;
27import static org.jboss.as.logging.CommonAttributes.SUBHANDLERS;
28
29import org.jboss.as.controller.OperationContext;
30import org.jboss.as.controller.OperationFailedException;
31import org.jboss.as.logging.util.ModelParser;
32import org.jboss.as.logging.handlers.AbstractLogHandlerWriteAttributeHandler;
33import org.jboss.dmr.ModelNode;
34import org.jboss.logmanager.handlers.AsyncHandler;
35
36/**
37 * Date: 12.10.2011
38 *
39 * @author <a href="mailto:jperkins@redhat.com">James R. Perkins</a>
40 */
41public class AsyncHandlerWriteAttributeHandler extends AbstractLogHandlerWriteAttributeHandler<AsyncHandler> {
42
43    public static final AsyncHandlerWriteAttributeHandler INSTANCE = new AsyncHandlerWriteAttributeHandler();
44
45    private AsyncHandlerWriteAttributeHandler() {
46        super(OVERFLOW_ACTION, SUBHANDLERS, QUEUE_LENGTH);
47    }
48
49    @Override
50    protected boolean doApplyUpdateToRuntime(final OperationContext context, final ModelNode operation, final String attributeName, final ModelNode resolvedValue, final ModelNode currentValue, final String handlerName, final AsyncHandler handler) throws OperationFailedException {
51        if (OVERFLOW_ACTION.getName().equals(attributeName)) {
52            handler.setOverflowAction(ModelParser.parseOverflowAction(resolvedValue));
53        } else if (SUBHANDLERS.getName().equals(attributeName)) {
54            // Remove the subhandlers
55            AsyncHandlerUnassignSubhandler.removeHandlers(SUBHANDLERS, currentValue, context, handlerName);
56            // Add the new handlers
57            AsyncHandlerAssignSubhandler.addHandlers(SUBHANDLERS, resolvedValue, context, handlerName);
58        } else if (QUEUE_LENGTH.getName().equals(attributeName)) {
59            return true;
60        }
61        return false;
62    }
63
64    @Override
65    protected void doRevertUpdateToRuntime(final OperationContext context, final ModelNode operation, final String attributeName, final ModelNode valueToRestore, final ModelNode valueToRevert, final String handlerName, final AsyncHandler handler) throws OperationFailedException {
66        if (OVERFLOW_ACTION.getName().equals(attributeName)) {
67            handler.setOverflowAction(ModelParser.parseOverflowAction(valueToRestore));
68        } else if (SUBHANDLERS.getName().equals(attributeName)) {
69            // Remove the subhandlers
70            AsyncHandlerUnassignSubhandler.removeHandlers(SUBHANDLERS, valueToRevert, context, handlerName);
71            // Add the new handlers
72            AsyncHandlerAssignSubhandler.addHandlers(SUBHANDLERS, valueToRestore, context, handlerName);
73        }
74    }
75}