/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.ejb3.subsystem;
import java.util.concurrent.TimeUnit;
import org.jboss.as.controller.AbstractWriteAttributeHandler;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.ejb3.component.pool.PoolConfigService;
import org.jboss.as.ejb3.component.pool.StrictMaxPoolConfig;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceRegistry;
/**
* Handles the "write-attribute" operation for a strict-max-bean-instance-pool resource.
*
* @author Brian Stansberry (c) 2011 Red Hat Inc.
*/
public class StrictMaxPoolWriteHandler extends AbstractWriteAttributeHandler<Void> {
public static final StrictMaxPoolWriteHandler INSTANCE = new StrictMaxPoolWriteHandler();
private StrictMaxPoolWriteHandler() {
super(StrictMaxPoolResourceDefinition.MAX_POOL_SIZE, StrictMaxPoolResourceDefinition.INSTANCE_ACQUISITION_TIMEOUT,
StrictMaxPoolResourceDefinition.INSTANCE_ACQUISITION_TIMEOUT_UNIT);
}
@Override
protected boolean applyUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName,
ModelNode newValue, ModelNode currentValue, HandbackHolder<Void> handbackHolder) throws OperationFailedException {
final ModelNode model = context.readResource(PathAddress.EMPTY_ADDRESS).getModel();
applyModelToRuntime(context, operation, attributeName, model);
return false;
}
private void applyModelToRuntime(OperationContext context, ModelNode operation, String attributeName, ModelNode model) throws OperationFailedException {
final String poolName = PathAddress.pathAddress(operation.get(ModelDescriptionConstants.OP_ADDR)).getLastElement().getValue();
final ServiceName serviceName = PoolConfigService.EJB_POOL_CONFIG_BASE_SERVICE_NAME.append(poolName);
final ServiceRegistry registry = context.getServiceRegistry(true);
ServiceController sc = registry.getService(serviceName);
if (sc != null) {
StrictMaxPoolConfig smpc = StrictMaxPoolConfig.class.cast(sc.getValue());
if (smpc != null) {
if (StrictMaxPoolResourceDefinition.MAX_POOL_SIZE.equals(attributeName)) {
int maxPoolSize = StrictMaxPoolResourceDefinition.MAX_POOL_SIZE.resolveModelAttribute(context, model).asInt();
smpc.setMaxPoolSize(maxPoolSize);
} else if (StrictMaxPoolResourceDefinition.INSTANCE_ACQUISITION_TIMEOUT.equals(attributeName)) {
long timeout = StrictMaxPoolResourceDefinition.INSTANCE_ACQUISITION_TIMEOUT.resolveModelAttribute(context, model).asLong();
smpc.setTimeout(timeout);
} else if (StrictMaxPoolResourceDefinition.INSTANCE_ACQUISITION_TIMEOUT_UNIT.equals(attributeName)) {
String timeoutUnit = StrictMaxPoolResourceDefinition.INSTANCE_ACQUISITION_TIMEOUT_UNIT.resolveModelAttribute(context, model).asString();
smpc.setTimeoutUnit(TimeUnit.valueOf(timeoutUnit));
}
}
}
}
@Override
protected void revertUpdateToRuntime(OperationContext context, ModelNode operation, String attributeName,
ModelNode valueToRestore, ModelNode valueToRevert, Void handback) throws OperationFailedException {
final ModelNode restored = context.readResource(PathAddress.EMPTY_ADDRESS).getModel().clone();
restored.get(attributeName).set(valueToRestore);
applyModelToRuntime(context, operation, attributeName, restored);
}
}