/*
* 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.server;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.ADDRESS;
import java.util.ArrayList;
import java.util.EnumMap;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ConcurrentSkipListSet;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.SimpleOperationDefinition;
import org.jboss.as.controller.SimpleOperationDefinitionBuilder;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.descriptions.common.ControllerResolver;
import org.jboss.as.server.deployment.DeployerChainsService;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.server.deployment.Phase;
import org.jboss.as.server.deployment.RegisteredDeploymentUnitProcessor;
import org.jboss.as.server.deployment.Services;
import org.jboss.as.server.logging.ServerLogger;
import org.jboss.dmr.ModelNode;
/**
* @author John Bailey
*/
public class DeployerChainAddHandler implements OperationStepHandler {
static final String NAME = "add-deployer-chains";
public static final SimpleOperationDefinition DEFINITION = new SimpleOperationDefinitionBuilder(NAME, ControllerResolver.getResolver())
.setPrivateEntry()
.build();
public static final DeployerChainAddHandler INSTANCE = new DeployerChainAddHandler();
public static void addDeploymentProcessor(final String subsystemName, Phase phase, int priority, DeploymentUnitProcessor processor) {
final EnumMap<Phase, Set<RegisteredDeploymentUnitProcessor>> deployerMap = INSTANCE.deployerMap;
Set<RegisteredDeploymentUnitProcessor> registeredDeploymentUnitProcessors = deployerMap.get(phase);
RegisteredDeploymentUnitProcessor registeredDeploymentUnitProcessor = new RegisteredDeploymentUnitProcessor(priority, processor, subsystemName);
if(registeredDeploymentUnitProcessors.contains(registeredDeploymentUnitProcessor)) {
throw ServerLogger.ROOT_LOGGER.duplicateDeploymentUnitProcessor(priority, processor.getClass());
}
registeredDeploymentUnitProcessors.add(registeredDeploymentUnitProcessor);
}
static ModelNode OPERATION = new ModelNode();
static {
OPERATION.get(ModelDescriptionConstants.OP).set(NAME);
OPERATION.get(ADDRESS).setEmptyList();
}
// This map is concurrently read by multiple threads but will only
// be written by a single thread, the boot thread
private final EnumMap<Phase, Set<RegisteredDeploymentUnitProcessor>> deployerMap;
private DeployerChainAddHandler() {
final EnumMap<Phase, Set<RegisteredDeploymentUnitProcessor>> map = new EnumMap<Phase, Set<RegisteredDeploymentUnitProcessor>>(Phase.class);
for (Phase phase : Phase.values()) {
map.put(phase, new ConcurrentSkipListSet<RegisteredDeploymentUnitProcessor>());
}
this.deployerMap = map;
}
/** This is only public so AbstractSubsystemTest can use it; otherwise it would be package-protected. */
public void clearDeployerMap() {
for (Set<RegisteredDeploymentUnitProcessor> set : deployerMap.values()) {
set.clear();
}
}
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
if(context.isNormalServer()) {
// Our real work needs to run after all RUNTIME steps that add DUPs have run. ServerService adds
// this operation at the end of the boot op list, so our MODEL stage step is last, and
// this RUNTIME step we are about to add should therefore be last as well *at the time
// we register it*. However, other RUNTIME steps can themselves add new RUNTIME steps that
// will then come after this one. So we do the same -- add a RUNTIME step that adds another
// RUNTIME step that does the real work.
// Theoretically this kind of "predecessor runtime step adds another runtime step, so we have to
// add one to come later" business could go on forever. But any operation that does that with
// a DUP-add step is just broken and should just find another way.
context.addStep(new OperationStepHandler() {
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
context.addStep(new FinalRuntimeStepHandler(), OperationContext.Stage.RUNTIME);
}
}, OperationContext.Stage.RUNTIME);
}
}
private class FinalRuntimeStepHandler implements OperationStepHandler {
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
final EnumMap<Phase, List<RegisteredDeploymentUnitProcessor>> finalDeployers = new EnumMap<Phase, List<RegisteredDeploymentUnitProcessor>>(Phase.class);
final List<RegisteredDeploymentUnitProcessor> processorList = new ArrayList<RegisteredDeploymentUnitProcessor>(256);
for (Phase phase : Phase.values()) {
processorList.clear();
final Set<RegisteredDeploymentUnitProcessor> processorSet = deployerMap.get(phase);
for (RegisteredDeploymentUnitProcessor processor : processorSet) {
processorList.add(processor);
}
finalDeployers.put(phase, new ArrayList<RegisteredDeploymentUnitProcessor>(processorList));
}
DeployerChainsService.addService(context.getServiceTarget(), finalDeployers);
context.completeStep(new OperationContext.RollbackHandler() {
@Override
public void handleRollback(OperationContext context, ModelNode operation) {
context.removeService(Services.JBOSS_DEPLOYMENT_CHAINS);
}
});
}
}
}