/*
* 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.registry;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.READ_RESOURCE_DESCRIPTION_OPERATION;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.PathAddress;
import org.jboss.dmr.ModelNode;
/**
* This class is private api
* <p>
* When r-r-d is called for a wildcard address, which is an alias, we want r-r-d to return the invoked address. However,
* AliasStepHandler replaces the operation address with the real address, which in turn means that the r-r-d handler
* never knows about the real address. This class contains two methods:
* <ol>
* <li>{@code attachAliasAddress()} called by {@link AliasStepHandler} to attach the original/alias PathAddress</li>
* <li>{@code detachAliasAddress()} called by {@link org.jboss.as.controller.operations.global.GlobalOperationHandlers.RegistrationAddressResolver}
* (called by the r-r-d handler) to detach the original PathAddress</li>
* </ol>
* This ensures that the r-r-d handler gets access to the original/alias PathAddress. The removal of the attachment ensures not
* that subsequent steps in the OC do not get access to it. Since the attach and detach only take effect for
* {@code :read-resource-description} we avoid the risk of a call to another operation at an alias address pollutes a
* subsequent {@code :read-resource-description} call at a 'real' address.
*
* @author Kabir Khan
*/
public class WildcardReadResourceDescriptionAddressHack {
private static final OperationContext.AttachmentKey<PathAddress> ALIAS_ORIGINAL_ADDRESS =
OperationContext.AttachmentKey.create(PathAddress.class);
/**
*
* @param context
* @param operation
*/
static void attachAliasAddress(OperationContext context, ModelNode operation) {
if (operation.get(OP).asString().equals(READ_RESOURCE_DESCRIPTION_OPERATION)) {
context.attach(ALIAS_ORIGINAL_ADDRESS, PathAddress.pathAddress(operation.get(OP_ADDR)));
}
}
public static PathAddress detachAliasAddress(OperationContext context, ModelNode operation) {
if (operation.get(OP).asString().equals(READ_RESOURCE_DESCRIPTION_OPERATION)) {
return context.detach(ALIAS_ORIGINAL_ADDRESS);
}
return null;
}
}