UndertowEventHandlerAdapterBuilder.java example

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wildfly-master
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 * published by the Free Software Foundation; either version 2.1 of
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 * This software is distributed in the hope that it will be useful,
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
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package org.wildfly.mod_cluster.undertow;

import java.time.Duration;
import java.util.stream.Stream;

import org.jboss.as.clustering.controller.CapabilityServiceBuilder;
import org.jboss.as.controller.capability.CapabilityServiceSupport;
import org.jboss.as.server.suspend.SuspendController;
import org.jboss.modcluster.container.ContainerEventHandler;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.value.InjectedValue;
import org.wildfly.clustering.service.AsynchronousServiceBuilder;
import org.wildfly.clustering.service.Builder;
import org.wildfly.clustering.service.InjectedValueDependency;
import org.wildfly.clustering.service.ValueDependency;
import org.wildfly.extension.mod_cluster.ContainerEventHandlerService;
import org.wildfly.extension.undertow.Capabilities;
import org.wildfly.extension.undertow.UndertowListener;
import org.wildfly.extension.undertow.UndertowService;

public class UndertowEventHandlerAdapterBuilder implements CapabilityServiceBuilder<Void>, UndertowEventHandlerAdapterConfiguration {
    static final ServiceName SERVICE_NAME = ContainerEventHandlerService.SERVICE_NAME.append("undertow");

    private final String listenerName;
    private final Duration statusInterval;

    private final InjectedValue<ContainerEventHandler> eventHandler = new InjectedValue<>();
    private final InjectedValue<SuspendController> suspendController = new InjectedValue<>();

    private volatile ValueDependency<UndertowService> service;
    private volatile ValueDependency<UndertowListener> listener;

    public UndertowEventHandlerAdapterBuilder(String listenerName, Duration statusInterval) {
        this.listenerName = listenerName;
        this.statusInterval = statusInterval;
    }

    @Override
    public ServiceName getServiceName() {
        return SERVICE_NAME;
    }

    @Override
    public Builder<Void> configure(CapabilityServiceSupport support) {
        this.service = new InjectedValueDependency<>(support.getCapabilityServiceName(Capabilities.CAPABILITY_UNDERTOW), UndertowService.class);
        this.listener = new InjectedValueDependency<>(support.getCapabilityServiceName(Capabilities.CAPABILITY_LISTENER, this.listenerName), UndertowListener.class);
        return this;
    }

    @Override
    public ServiceBuilder<Void> build(ServiceTarget target) {
        ServiceBuilder<Void> builder = new AsynchronousServiceBuilder<>(SERVICE_NAME, new UndertowEventHandlerAdapter(this)).build(target)
                .addDependency(ContainerEventHandlerService.SERVICE_NAME, ContainerEventHandler.class, this.eventHandler)
                .addDependency(SuspendController.SERVICE_NAME, SuspendController.class, this.suspendController)
                ;
        Stream.of(this.service, this.listener).forEach(dependency -> dependency.register(builder));
        return builder;
    }

    @Override
    public Duration getStatusInterval() {
        return this.statusInterval;
    }

    @Override
    public UndertowService getUndertowService() {
        return this.service.getValue();
    }

    @Override
    public ContainerEventHandler getContainerEventHandler() {
        return this.eventHandler.getValue();
    }

    @Override
    public SuspendController getSuspendController() {
        return this.suspendController.getValue();
    }

    @Override
    public UndertowListener getListener() {
        return this.listener.getValue();
    }
}