/*
* 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.descriptions.ModelDescriptionConstants.ADD;
import static org.jboss.as.controller.services.path.PathResourceDefinition.PATH_SPECIFIED;
import static org.jboss.as.controller.services.path.PathResourceDefinition.RELATIVE_TO;
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.SimpleAttributeDefinition;
import org.jboss.as.controller.operations.common.Util;
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.ServiceController;
import org.jboss.msc.service.ServiceTarget;
/**
* Handler for the path resource add operation.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class PathAddHandler implements OperationStepHandler { // TODO make this package protected
public static final String OPERATION_NAME = ADD;
public static ModelNode getAddPathOperation(PathAddress address, ModelNode path, ModelNode relativeTo) {
ModelNode op = Util.createAddOperation(address);
if (path.isDefined()) {
op.get(PATH_SPECIFIED.getName()).set(path);
}
if (relativeTo.isDefined()) {
op.get(RELATIVE_TO.getName()).set(relativeTo);
}
return op;
}
private final SimpleAttributeDefinition pathAttribute;
private final PathManagerService pathManager;
/**
* Create the PathAddHandler
*
* @param pathManager the path manager, or {@code null} if interaction with the path manager is not required
* for the resource
* @param pathAttribute the definition of the attribute to use to represent the portion of the path specification
* that identifies the absolute path or portion of the path that is relative to the 'relative-to' path.
* Cannot be {@code null}
*/
PathAddHandler(final PathManagerService pathManager, final SimpleAttributeDefinition pathAttribute) {
this.pathManager = pathManager;
this.pathAttribute = pathAttribute;
}
/**
* Create the PathAddHandler
*
* @param pathManager the path manager, or {@code null} if interaction with the path manager is not required
* for the resource
* @param services {@code true} if interaction with the path manager is required for the resource
* @param pathAttribute the definition of the attribute to use to represent the portion of the path specification
* that identifies the absolute path or portion of the path that is relative to the 'relative-to' path.
* Cannot be {@code null}
*
* @deprecated not for use outside the kernel; may be removed at any time
*/
@Deprecated
protected PathAddHandler(final PathManagerService pathManager, final boolean services, final SimpleAttributeDefinition pathAttribute) {
this(services ? null: pathManager, pathAttribute);
assert !services || pathManager != null;
}
static PathAddHandler createNamedInstance() {
return new PathAddHandler(null, PathResourceDefinition.PATH_NAMED);
}
static PathAddHandler createSpecifiedInstance(final PathManagerService pathManager) {
assert pathManager != null;
return new PathAddHandler(pathManager, PathResourceDefinition.PATH_SPECIFIED);
}
static PathAddHandler createSpecifiedNoServicesInstance() {
return new PathAddHandler(null, PathResourceDefinition.PATH_SPECIFIED);
}
/** {@inheritDoc */
public void execute(final OperationContext context, final ModelNode operation) throws OperationFailedException {
final Resource resource = context.createResource(PathAddress.EMPTY_ADDRESS);
final ModelNode model = resource.getModel();
final String name = context.getCurrentAddressValue();
pathAttribute.validateAndSet(operation, model);
RELATIVE_TO.validateAndSet(operation, model);
if (pathManager != null) {
final String path = getPathValue(context, PATH_SPECIFIED, model);
final String relativeTo = getPathValue(context, RELATIVE_TO, model);
final PathEventContextImpl pathEventContext = pathManager.checkRestartRequired(context, name, Event.ADDED);
if (pathEventContext.isInstallServices()) {
//Add entry to the path manager
pathManager.addPathEntry(name, path, relativeTo, false);
}
context.addStep(new OperationStepHandler() {
public void execute(final OperationContext context, final ModelNode operation) throws OperationFailedException {
final ServiceController<?> legacyService;
if (pathEventContext.isInstallServices()) {
//Add the legacy services
final ServiceTarget target = context.getServiceTarget();
if (relativeTo == null) {
legacyService = pathManager.addAbsolutePathService(target, name, path);
} else {
legacyService = pathManager.addRelativePathService(target, name, path, false, relativeTo);
}
} else {
legacyService = null;
}
context.completeStep(new OperationContext.RollbackHandler() {
public void handleRollback(OperationContext context, ModelNode operation) {
pathManager.removePathService(context, name);
if (pathEventContext.isInstallServices()) {
if (legacyService != null) {
context.removeService(legacyService.getName());
}
} else {
pathEventContext.revert();
}
}
});
}
}, OperationContext.Stage.RUNTIME);
context.completeStep(new OperationContext.RollbackHandler() {
public void handleRollback(OperationContext context, ModelNode operation) {
if (pathEventContext.isInstallServices()) {
try {
pathManager.removePathEntry(name, false);
} catch (OperationFailedException e) {
//Should not happen since 'false' passed in for the check parameter
throw new RuntimeException(e);
}
}
}
});
} else {
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}
static String getPathValue(OperationContext context, SimpleAttributeDefinition def, ModelNode model) throws OperationFailedException {
final ModelNode resolved = def.resolveModelAttribute(context, model);
return resolved.isDefined() ? resolved.asString() : null;
}
}