/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, 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.domain.management.controller;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ACTIVE_OPERATION;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.CORE;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.MANAGEMENT_OPERATIONS;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.RESULT;
import java.util.concurrent.TimeUnit;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationDefinition;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.SimpleAttributeDefinitionBuilder;
import org.jboss.as.controller.SimpleOperationDefinitionBuilder;
import org.jboss.as.controller.client.helpers.MeasurementUnit;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.operations.validation.IntRangeValidator;
import org.jboss.as.controller.registry.OperationEntry;
import org.jboss.as.domain.management._private.DomainManagementResolver;
import org.jboss.as.domain.management.logging.DomainManagementLogger;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
/**
* {@link org.jboss.as.controller.OperationStepHandler} that looks for and cancels a single operation that is in
* execution status {@link org.jboss.as.controller.OperationContext.ExecutionStatus#AWAITING_STABILITY}
* and has been executing in that status for longer than a specified {@code timeout} seconds.
*
* @author Brian Stansberry (c) 2014 Red Hat Inc.
*/
public class CancelNonProgressingOperationHandler implements OperationStepHandler {
private static final AttributeDefinition STABILITY_TIMEOUT = SimpleAttributeDefinitionBuilder.create("timeout", ModelType.INT, false)
.setDefaultValue(new ModelNode(15))
.setValidator(new IntRangeValidator(0, true))
.setMeasurementUnit(MeasurementUnit.SECONDS)
.build();
static final OperationDefinition DEFINITION = new SimpleOperationDefinitionBuilder("cancel-non-progressing-operation",
DomainManagementResolver.getResolver(CORE, MANAGEMENT_OPERATIONS))
.setReplyType(ModelType.STRING)
.withFlag(OperationEntry.Flag.HOST_CONTROLLER_ONLY)
.setRuntimeOnly()
.build();
static final OperationStepHandler INSTANCE = new CancelNonProgressingOperationHandler();
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
final long timeout = TimeUnit.SECONDS.toNanos(STABILITY_TIMEOUT.resolveModelAttribute(context, operation).asLong());
DomainManagementLogger.ROOT_LOGGER.debugf("Cancel of operation not progressing after [%d] ns requested", timeout);
String blockingId = FindNonProgressingOperationHandler.findNonProgressingOp(context, timeout);
if (blockingId != null) {
final String toCancel = blockingId;
PathAddress pa = PathAddress.pathAddress(operation.get(OP_ADDR));
ModelNode op = Util.createEmptyOperation(CancelActiveOperationHandler.DEFINITION.getName(),
pa.append(PathElement.pathElement(ACTIVE_OPERATION, toCancel)));
final ModelNode response = new ModelNode();
context.addStep(response, op, CancelActiveOperationHandler.INSTANCE, OperationContext.Stage.MODEL, true);
context.completeStep(new OperationContext.ResultHandler() {
@Override
public void handleResult(OperationContext.ResultAction resultAction, OperationContext context, ModelNode operation) {
if (response.hasDefined(RESULT) && response.get(RESULT).asBoolean()) {
context.getResult().set(toCancel);
}
}
});
} else {
throw DomainManagementLogger.ROOT_LOGGER.noNonProgressingOperationFound(TimeUnit.NANOSECONDS.toSeconds(timeout));
}
}
}