org.jboss.as.server.operations.SystemPropertyRemoveHandler Maven / Gradle / Ivy
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* 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.server.operations;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.NAME;
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.descriptions.ModelDescriptionConstants.VALUE;
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.operations.common.ProcessEnvironmentSystemPropertyUpdater;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.registry.Resource;
import org.jboss.dmr.ModelNode;
import org.wildfly.security.manager.WildFlySecurityManager;
/**
* Handler for system property remove operations.
*
* @author Kabir Khan
*/
public class SystemPropertyRemoveHandler implements OperationStepHandler {
public static final String OPERATION_NAME = REMOVE;
public static final SystemPropertyRemoveHandler INSTANCE = new SystemPropertyRemoveHandler(null);
public static ModelNode getOperation(ModelNode address, String name) {
ModelNode op = Util.getEmptyOperation(OPERATION_NAME, address);
op.get(NAME).set(name);
return op;
}
private final ProcessEnvironmentSystemPropertyUpdater systemPropertyUpdater;
/**
* Create the SystemPropertyRemoveHandler
* @param systemPropertyUpdater the process environment to use to validate changes. May be {@code null}
*/
public SystemPropertyRemoveHandler(ProcessEnvironmentSystemPropertyUpdater systemPropertyUpdater) {
this.systemPropertyUpdater = systemPropertyUpdater;
}
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
final ModelNode model = Resource.Tools.readModel(context.readResource(PathAddress.EMPTY_ADDRESS));
context.removeResource(PathAddress.EMPTY_ADDRESS);
final String name = PathAddress.pathAddress(operation.get(OP_ADDR)).getLastElement().getValue();
final String oldValue = model.hasDefined(VALUE) ? model.get(VALUE).asString() : null;
final boolean applyToRuntime = systemPropertyUpdater != null &&
systemPropertyUpdater.isRuntimeSystemPropertyUpdateAllowed(name, oldValue, context.isBooting());
final boolean reload = !applyToRuntime && context.getProcessType().isServer();
if (applyToRuntime) {
context.addStep(new OperationStepHandler() {
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
WildFlySecurityManager.clearPropertyPrivileged(name);
if (systemPropertyUpdater != null) {
systemPropertyUpdater.systemPropertyUpdated(name, null);
}
context.completeStep(new OperationContext.RollbackHandler() {
@Override
public void handleRollback(OperationContext context, ModelNode operation) {
WildFlySecurityManager.setPropertyPrivileged(name, oldValue);
if (systemPropertyUpdater != null) {
systemPropertyUpdater.systemPropertyUpdated(name, oldValue);
}
}
});
}
}, OperationContext.Stage.RUNTIME);
} else if (reload) {
context.reloadRequired();
}
context.completeStep(new OperationContext.RollbackHandler() {
@Override
public void handleRollback(OperationContext context, ModelNode operation) {
if (reload) {
context.revertReloadRequired();
}
}
});
}
}