/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.controller.operations;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.DOMAIN_MODEL;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.EXTENSION;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.HOST;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.SERVER;
import static org.jboss.as.domain.controller.DomainControllerLogger.ROOT_LOGGER;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jboss.as.controller.Extension;
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.PathElement;
import org.jboss.as.controller.ProxyController;
import org.jboss.as.controller.SimpleOperationDefinition;
import org.jboss.as.controller.SimpleOperationDefinitionBuilder;
import org.jboss.as.controller.extension.ExtensionRegistry;
import org.jboss.as.controller.extension.ExtensionResource;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.domain.controller.DomainControllerMessages;
import org.jboss.as.domain.controller.LocalHostControllerInfo;
import org.jboss.as.domain.controller.ServerIdentity;
import org.jboss.as.domain.controller.operations.coordination.DomainServerUtils;
import org.jboss.as.host.controller.ignored.IgnoredDomainResourceRegistry;
import org.jboss.as.server.operations.ServerRestartRequiredHandler;
import org.jboss.dmr.ModelNode;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoadException;
/**
* Step handler responsible for adding the extensions as part of the host registration process.
*
* @author Emanuel Muckenhuber
*/
public class ApplyExtensionsHandler implements OperationStepHandler {
public static final String OPERATION_NAME = "resolve-subsystems";
private final Set<String> appliedExtensions = new HashSet<String>();
private final ExtensionRegistry extensionRegistry;
private final LocalHostControllerInfo localHostInfo;
private final IgnoredDomainResourceRegistry ignoredResourceRegistry;
//Private method does not need resources for description
public static final SimpleOperationDefinition DEFINITION = new SimpleOperationDefinitionBuilder(OPERATION_NAME, null)
.setPrivateEntry()
.build();
public ApplyExtensionsHandler(ExtensionRegistry extensionRegistry, LocalHostControllerInfo localHostInfo, final IgnoredDomainResourceRegistry ignoredResourceRegistry) {
this.extensionRegistry = extensionRegistry;
this.localHostInfo = localHostInfo;
this.ignoredResourceRegistry = ignoredResourceRegistry;
}
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
// We get the model as a list of resources descriptions
final ModelNode domainModel = operation.get(DOMAIN_MODEL);
final ModelNode startRoot = Resource.Tools.readModel(context.readResourceFromRoot(PathAddress.EMPTY_ADDRESS));
final Resource rootResource = context.readResourceForUpdate(PathAddress.EMPTY_ADDRESS);
for(Resource.ResourceEntry entry : rootResource.getChildren(EXTENSION)) {
rootResource.removeChild(entry.getPathElement());
}
for (final ModelNode resourceDescription : domainModel.asList()) {
final PathAddress resourceAddress = PathAddress.pathAddress(resourceDescription.require("domain-resource-address"));
if (ignoredResourceRegistry.isResourceExcluded(resourceAddress)) {
continue;
}
final Resource resource = getResource(resourceAddress, rootResource, context);
if (resourceAddress.size() == 1 && resourceAddress.getElement(0).getKey().equals(EXTENSION)) {
final String module = resourceAddress.getElement(0).getValue();
if (!appliedExtensions.contains(module)) {
appliedExtensions.add(module);
initializeExtension(module);
}
} else {
continue;
}
resource.writeModel(resourceDescription.get("domain-resource-model"));
}
if (!context.isBooting()) {
final Resource domainRootResource = context.readResourceForUpdate(PathAddress.EMPTY_ADDRESS);
final ModelNode endRoot = Resource.Tools.readModel(domainRootResource);
final Set<ServerIdentity> affectedServers = new HashSet<ServerIdentity>();
final ModelNode hostModel = endRoot.require(HOST).asPropertyList().iterator().next().getValue();
final Map<String, ProxyController> serverProxies = DomainServerUtils.getServerProxies(localHostInfo.getLocalHostName(), domainRootResource, context.getResourceRegistration());
final ModelNode startExtensions = startRoot.get(EXTENSION);
final ModelNode finishExtensions = endRoot.get(EXTENSION);
if (!startExtensions.equals(finishExtensions)) {
// This affects all servers
affectedServers.addAll(DomainServerUtils.getAllRunningServers(hostModel, localHostInfo.getLocalHostName(), serverProxies));
}
if (!affectedServers.isEmpty()) {
ROOT_LOGGER.domainModelChangedOnReConnect(affectedServers);
final Set<ServerIdentity> runningServers = DomainServerUtils.getAllRunningServers(hostModel, localHostInfo.getLocalHostName(), serverProxies);
for (ServerIdentity serverIdentity : affectedServers) {
if(!runningServers.contains(serverIdentity)) {
continue;
}
final PathAddress serverAddress = PathAddress.pathAddress(PathElement.pathElement(HOST, serverIdentity.getHostName()), PathElement.pathElement(SERVER, serverIdentity.getServerName()));
final OperationStepHandler handler = context.getResourceRegistration().getOperationHandler(serverAddress, ServerRestartRequiredHandler.OPERATION_NAME);
final ModelNode op = new ModelNode();
op.get(OP).set(ServerRestartRequiredHandler.OPERATION_NAME);
op.get(OP_ADDR).set(serverAddress.toModelNode());
context.addStep(op, handler, OperationContext.Stage.IMMEDIATE);
}
}
}
context.stepCompleted();
}
private Resource getResource(PathAddress resourceAddress, Resource rootResource, OperationContext context) {
if(resourceAddress.size() == 0) {
return rootResource;
}
Resource temp = rootResource;
int idx = 0;
for(PathElement element : resourceAddress) {
temp = temp.getChild(element);
if(temp == null) {
if (idx == 0) {
String type = element.getKey();
if (type.equals(EXTENSION)) {
// Needs a specialized resource type
temp = new ExtensionResource(element.getValue(), extensionRegistry);
context.addResource(resourceAddress, temp);
}
}
if (temp == null) {
temp = context.createResource(resourceAddress);
}
break;
}
idx++;
}
return temp;
}
protected void initializeExtension(String module) throws OperationFailedException {
try {
for (final Extension extension : Module.loadServiceFromCallerModuleLoader(ModuleIdentifier.fromString(module), Extension.class)) {
ClassLoader oldTccl = SecurityActions.setThreadContextClassLoader(extension.getClass());
try {
extension.initializeParsers(extensionRegistry.getExtensionParsingContext(module, null));
extension.initialize(extensionRegistry.getExtensionContext(module, false));
} finally {
SecurityActions.setThreadContextClassLoader(oldTccl);
}
}
} catch (ModuleLoadException e) {
throw DomainControllerMessages.MESSAGES.failedToLoadModule(e, module);
}
}
}