/*
* JBoss, Home of Professional Open Source.
* Copyright 2015, 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.controller.transform;
import org.jboss.as.controller.OperationContext;
/**
* If this attachment is attached to an OperationContext, its internal attachments get propagated to the transformers.
*
* @author <a href="mailto:kabir.khan@jboss.com">Kabir Khan</a>
*/
public class TransformerOperationAttachment {
public static OperationContext.AttachmentKey<TransformerOperationAttachment> KEY =
OperationContext.AttachmentKey.create(TransformerOperationAttachment.class);
private final ContextAttachments contextAttachments = new ContextAttachments();
public TransformerOperationAttachment() {
}
public static TransformerOperationAttachment getOrCreate(OperationContext context) {
assert !context.isBooting() : "Only usable once booted";
TransformerOperationAttachment attachment = new TransformerOperationAttachment();
TransformerOperationAttachment original = context.attachIfAbsent(KEY, attachment);
return original == null ? attachment : original;
}
public <V> V attach(final OperationContext.AttachmentKey<V> key, final V value) {
return contextAttachments.attach(key, value);
}
public <V> V attachIfAbsent(final OperationContext.AttachmentKey<V> key, final V value) {
return contextAttachments.attachIfAbsent(key, value);
}
public <V> V detach(final OperationContext.AttachmentKey<V> key) {
return contextAttachments.detach(key);
}
public <V> V getAttachment(final OperationContext.AttachmentKey<V> key) {
return contextAttachments.getAttachment(key);
}
}