| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.cdi.websocket; |
| |
| import java.util.Set; |
| |
| import javax.enterprise.inject.spi.Bean; |
| import javax.enterprise.inject.spi.BeanManager; |
| import javax.enterprise.inject.spi.CDI; |
| |
| import org.eclipse.jetty.cdi.core.AnyLiteral; |
| import org.eclipse.jetty.cdi.core.ScopedInstance; |
| import org.eclipse.jetty.util.component.ContainerLifeCycle; |
| import org.eclipse.jetty.util.component.LifeCycle; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| import org.eclipse.jetty.websocket.api.Session; |
| import org.eclipse.jetty.websocket.common.scopes.WebSocketContainerScope; |
| import org.eclipse.jetty.websocket.common.scopes.WebSocketSessionScope; |
| |
| public class WebSocketCdiListener extends AbstractContainerListener |
| { |
| static final Logger LOG = Log.getLogger(WebSocketCdiListener.class); |
| |
| @SuppressWarnings( |
| { "rawtypes", "unchecked" }) |
| public static <T> ScopedInstance<T> newInstance(Class<T> clazz) |
| { |
| BeanManager bm = CDI.current().getBeanManager(); |
| |
| ScopedInstance sbean = new ScopedInstance(); |
| Set<Bean<?>> beans = bm.getBeans(clazz,AnyLiteral.INSTANCE); |
| if (beans.size() > 0) |
| { |
| sbean.bean = beans.iterator().next(); |
| sbean.creationalContext = bm.createCreationalContext(sbean.bean); |
| sbean.instance = bm.getReference(sbean.bean,clazz,sbean.creationalContext); |
| return sbean; |
| } |
| else |
| { |
| throw new RuntimeException(String.format("Can't find class %s",clazz)); |
| } |
| } |
| |
| public static class ContainerListener extends AbstractContainerListener |
| { |
| private static final Logger LOG = Log.getLogger(WebSocketCdiListener.ContainerListener.class); |
| private final WebSocketContainerScope container; |
| private final ScopedInstance<WebSocketScopeContext> wsScope; |
| |
| public ContainerListener(WebSocketContainerScope container) |
| { |
| this.container = container; |
| this.wsScope = newInstance(WebSocketScopeContext.class); |
| this.wsScope.instance.create(); |
| } |
| |
| @Override |
| public void lifeCycleStarted(LifeCycle event) |
| { |
| if (event == container) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("starting websocket container [{}]",event); |
| } |
| wsScope.instance.begin(); |
| return; |
| } |
| |
| if (event instanceof WebSocketSessionScope) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("starting websocket session [{}]",event); |
| } |
| wsScope.instance.setSession((Session)event); |
| return; |
| } |
| } |
| |
| @Override |
| public void lifeCycleStopped(LifeCycle event) |
| { |
| if (event == container) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("stopped websocket container [{}]",event); |
| } |
| this.wsScope.instance.end(); |
| this.wsScope.instance.destroy(); |
| this.wsScope.destroy(); |
| } |
| } |
| } |
| |
| @Override |
| public void lifeCycleStarting(LifeCycle event) |
| { |
| if (event instanceof WebSocketContainerScope) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("started websocket container [{}]",event); |
| } |
| ContainerListener listener = new ContainerListener((WebSocketContainerScope)event); |
| if (event instanceof ContainerLifeCycle) |
| { |
| ContainerLifeCycle container = (ContainerLifeCycle)event; |
| container.addLifeCycleListener(listener); |
| container.addEventListener(listener); |
| } |
| else |
| { |
| throw new RuntimeException("Unable to setup CDI against non-container: " + event.getClass().getName()); |
| } |
| } |
| } |
| } |