UndertowDependencyProcessor.java

/*
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 * Copyright 2010, Red Hat Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt 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.undertow.deployment;

import org.jboss.as.ee.structure.DeploymentType;
import org.jboss.as.ee.structure.DeploymentTypeMarker;
import org.jboss.as.server.deployment.Attachments;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.jboss.as.server.deployment.module.ModuleDependency;
import org.jboss.as.server.deployment.module.ModuleSpecification;
import org.jboss.logging.Logger;
import org.jboss.modules.Module;
import org.jboss.modules.ModuleIdentifier;
import org.jboss.modules.ModuleLoader;

/**
 * Module dependencies processor.
 *
 * @author Emanuel Muckenhuber
 * @author Stan Silvert
 */
public class UndertowDependencyProcessor implements DeploymentUnitProcessor {

    private static final ModuleIdentifier JAVAX_EE_API = ModuleIdentifier.create("javaee.api");
    private static final ModuleIdentifier JSTL = ModuleIdentifier.create("javax.servlet.jstl.api");

    private static final ModuleIdentifier UNDERTOW_CORE = ModuleIdentifier.create("io.undertow.core");
    private static final ModuleIdentifier UNDERTOW_SERVLET = ModuleIdentifier.create("io.undertow.servlet");
    //TODO this should probably be added only if websockets are there
    private static final ModuleIdentifier UNDERTOW_WEBSOCKET = ModuleIdentifier.create("io.undertow.websocket");

    static {
        Module module = Module.forClass(UndertowDependencyProcessor.class);
        if (module != null) {
            //When testing the subsystems we are running in a non-modular environment
            //so module will be null. Having a null entry kills ModularURLStreamHandlerFactory
            Module.registerURLStreamHandlerFactoryModule(module);
        }
    }

    private static final Logger logger = Logger.getLogger(UndertowDependencyProcessor.class);

    public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
        final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();

        if (!DeploymentTypeMarker.isType(DeploymentType.WAR, deploymentUnit)) {
            return; // Skip non web deployments
        }

        final ModuleSpecification moduleSpecification = deploymentUnit.getAttachment(Attachments.MODULE_SPECIFICATION);
        final ModuleLoader moduleLoader = Module.getBootModuleLoader();

        // Add module dependencies on Java EE apis
        moduleSpecification.addSystemDependency(new ModuleDependency(moduleLoader, JAVAX_EE_API, false, false, false, false));

        moduleSpecification.addSystemDependency(new ModuleDependency(moduleLoader, JSTL, false, false, false, false));
        moduleSpecification.addSystemDependency(new ModuleDependency(moduleLoader, UNDERTOW_CORE, false, false, true, false));
        moduleSpecification.addSystemDependency(new ModuleDependency(moduleLoader, UNDERTOW_SERVLET, false, false, true, false));
        moduleSpecification.addSystemDependency(new ModuleDependency(moduleLoader, UNDERTOW_WEBSOCKET, false, false, true, false));
    }

    public void undeploy(final DeploymentUnit context) {
    }
}