| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 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.lang.annotation.Annotation; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.enterprise.context.spi.Context; |
| import javax.enterprise.context.spi.Contextual; |
| import javax.enterprise.context.spi.CreationalContext; |
| import javax.enterprise.inject.spi.Bean; |
| import javax.enterprise.inject.spi.BeanManager; |
| import javax.inject.Inject; |
| |
| import org.eclipse.jetty.cdi.core.AnyLiteral; |
| import org.eclipse.jetty.cdi.core.ScopedInstance; |
| import org.eclipse.jetty.cdi.core.SimpleBeanStore; |
| import org.eclipse.jetty.cdi.websocket.annotation.WebSocketScope; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| import org.eclipse.jetty.websocket.api.Session; |
| |
| /** |
| * WebSocket Scope Context. |
| * <p> |
| * A CDI Context definition for how CDI will use objects defined to belong to the WebSocketScope |
| */ |
| public class WebSocketScopeContext implements Context |
| { |
| private static final Logger LOG = Log.getLogger(WebSocketScopeContext.class); |
| |
| private static ThreadLocal<WebSocketScopeContext> current = new ThreadLocal<>(); |
| |
| public static WebSocketScopeContext current() |
| { |
| return current.get(); |
| } |
| |
| private SimpleBeanStore beanStore; |
| |
| @Inject |
| private BeanManager beanManager; |
| |
| private ThreadLocal<org.eclipse.jetty.websocket.api.Session> session = new ThreadLocal<>(); |
| |
| public void begin() |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} begin()",this); |
| } |
| current.set(this); |
| } |
| |
| public void create() |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} create()",this); |
| } |
| current.set(this); |
| beanStore = new SimpleBeanStore(); |
| } |
| |
| public void destroy() |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} destroy()",this); |
| } |
| |
| beanStore.destroy(); |
| } |
| |
| public void end() |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} end()",this); |
| } |
| beanStore.clear(); |
| } |
| |
| @SuppressWarnings({ "unchecked" }) |
| @Override |
| public <T> T get(Contextual<T> contextual) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} get({})",this,contextual); |
| } |
| |
| Bean<T> bean = (Bean<T>)contextual; |
| |
| if (bean.getBeanClass().isAssignableFrom(Session.class)) |
| { |
| return (T)this.session; |
| } |
| |
| if (beanStore == null) |
| { |
| return null; |
| } |
| |
| List<ScopedInstance<?>> beans = beanStore.getBeans(contextual); |
| |
| if ((beans != null) && (!beans.isEmpty())) |
| { |
| return (T)beans.get(0).instance; |
| } |
| |
| return null; |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public <T> T get(Contextual<T> contextual, CreationalContext<T> creationalContext) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} get({},{})",this,contextual,creationalContext); |
| } |
| |
| Bean<T> bean = (Bean<T>)contextual; |
| |
| if (bean.getBeanClass().isAssignableFrom(Session.class)) |
| { |
| return (T)this.session; |
| } |
| |
| if (beanStore == null) |
| { |
| beanStore = new SimpleBeanStore(); |
| } |
| |
| List<ScopedInstance<?>> beans = beanStore.getBeans(contextual); |
| |
| if ((beans != null) && (!beans.isEmpty())) |
| { |
| for (ScopedInstance<?> instance : beans) |
| { |
| if (instance.bean.equals(bean)) |
| { |
| return (T)instance.instance; |
| } |
| } |
| } |
| |
| // no bean found, create it |
| T t = bean.create(creationalContext); |
| ScopedInstance<T> customInstance = new ScopedInstance<>(); |
| customInstance.bean = bean; |
| customInstance.creationalContext = creationalContext; |
| customInstance.instance = t; |
| beanStore.addBean(customInstance); |
| return t; |
| } |
| |
| @Override |
| public Class<? extends Annotation> getScope() |
| { |
| return WebSocketScope.class; |
| } |
| |
| @Override |
| public boolean isActive() |
| { |
| return true; |
| } |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| public <T> T newInstance(Class<T> clazz) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("newInstance({})",clazz); |
| } |
| Set<Bean<?>> beans = beanManager.getBeans(clazz,AnyLiteral.INSTANCE); |
| if (beans.isEmpty()) |
| { |
| return null; |
| } |
| |
| Bean bean = beans.iterator().next(); |
| CreationalContext cc = beanManager.createCreationalContext(bean); |
| return (T)beanManager.getReference(bean,clazz,cc); |
| } |
| |
| public void setSession(org.eclipse.jetty.websocket.api.Session sess) |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} setSession({})",this,sess); |
| } |
| current.set(this); |
| this.session.set(sess); |
| } |
| |
| public org.eclipse.jetty.websocket.api.Session getSession() |
| { |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("{} getSession()",this); |
| } |
| return this.session.get(); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.format("%s@%X[%s]",this.getClass().getSimpleName(),hashCode(),beanStore); |
| } |
| } |