/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.jboss.as.controller.services.path;
import static org.jboss.as.controller.ControllerLogger.MGMT_OP_LOGGER;
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.REMOVE;
import static org.jboss.as.controller.services.path.PathResourceDefinition.PATH_SPECIFIED;
import static org.jboss.as.controller.services.path.PathResourceDefinition.READ_ONLY;
import static org.jboss.as.controller.services.path.PathResourceDefinition.RELATIVE_TO;
import org.jboss.as.controller.ControllerMessages;
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.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.controller.services.path.PathManager.Event;
import org.jboss.as.controller.services.path.PathManagerService.PathEventContextImpl;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.ServiceTarget;
/**
* Handler for the path resource remove operation.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class PathRemoveHandler implements OperationStepHandler {
public static final String OPERATION_NAME = REMOVE;
private final boolean services;
private final PathManagerService pathManager;
public static ModelNode getRemovePathOperation(ModelNode address) {
ModelNode op = new ModelNode();
op.get(OP).set(OPERATION_NAME);
op.get(OP_ADDR).set(address);
return op;
}
/**
* Create the PathRemoveHandler
*/
protected PathRemoveHandler(final PathManagerService pathManager, final boolean services) {
this.pathManager = pathManager;
this.services = services;
}
static PathRemoveHandler createNamedInstance(final PathManagerService pathManager) {
return new PathRemoveHandler(pathManager, false);
}
static PathRemoveHandler createSpecifiedInstance(final PathManagerService pathManager) {
return new PathRemoveHandler(pathManager, true);
}
static PathRemoveHandler createSpecifiedNoServicesInstance(final PathManagerService pathManager) {
return new PathRemoveHandler(pathManager, true);
}
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
final PathAddress address = PathAddress.pathAddress(operation.require(OP_ADDR));
final String name = address.getLastElement().getValue();
final ModelNode model = Resource.Tools.readModel(context.readResource(PathAddress.EMPTY_ADDRESS));
if (model.get(READ_ONLY.getName()).asBoolean(false)) {
throw ControllerMessages.MESSAGES.cannotRemoveReadOnlyPath(name);
}
context.removeResource(PathAddress.EMPTY_ADDRESS);
if (services) {
context.addStep(new OperationStepHandler() {
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
final PathEventContextImpl pathEventContext = pathManager.checkRestartRequired(context, name, Event.REMOVED);
if (pathEventContext.isInstallServices()) {
pathManager.removePathEntry(name, true);
pathManager.removePathService(context, name);
}
context.completeStep(new OperationContext.RollbackHandler() {
@Override
public void handleRollback(OperationContext context, ModelNode operation) {
try {
final String path = PathAddHandler.getPathValue(context, PATH_SPECIFIED, model);
final String relativeTo = PathAddHandler.getPathValue(context, RELATIVE_TO, model);
if (pathEventContext.isInstallServices()) {
pathManager.addPathEntry(name, path, relativeTo, false);
final ServiceTarget target = context.getServiceTarget();
if (relativeTo == null) {
pathManager.addAbsolutePathService(target, name, path, null);
} else {
pathManager.addRelativePathService(target, name, path, false, relativeTo, null);
}
} else {
context.revertRestartRequired();
}
} catch (Exception e) {
MGMT_OP_LOGGER.errorRevertingOperation(e, getClass().getSimpleName(),
operation.require(ModelDescriptionConstants.OP).asString(),
PathAddress.pathAddress(operation.get(ModelDescriptionConstants.OP_ADDR)));
}
}
});
}
}, OperationContext.Stage.RUNTIME);
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}