| // |
| // ======================================================================== |
| // 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.servlet; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Set; |
| |
| import javax.servlet.ServletContext; |
| |
| import org.eclipse.jetty.servlet.ServletContextHandler; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| import org.eclipse.jetty.util.resource.Resource; |
| import org.jboss.weld.environment.servlet.EnhancedListener; |
| |
| /** |
| * Handy {@link ServletContextHandler} implementation that hooks up |
| * all of the various CDI related components and listeners from Weld. |
| */ |
| public class EmbeddedCdiHandler extends ServletContextHandler |
| { |
| private static final Logger LOG = Log.getLogger(EmbeddedCdiHandler.class); |
| |
| private static final String[] REQUIRED_BEANS_XML_PATHS = new String[] { |
| "/WEB-INF/beans.xml", |
| "/META-INF/beans.xml", |
| "/WEB-INF/classes/META-INF/beans.xml" |
| }; |
| |
| public EmbeddedCdiHandler() |
| { |
| super(); |
| } |
| |
| public EmbeddedCdiHandler(int options) |
| { |
| super(options); |
| } |
| |
| @Override |
| protected void doStart() throws Exception |
| { |
| // Required of CDI |
| Resource baseResource = getBaseResource(); |
| if (baseResource == null) |
| { |
| throw new NullPointerException("baseResource must be set (to so it can find the beans.xml)"); |
| } |
| |
| boolean foundBeansXml = false; |
| |
| // Verify that beans.xml is present, otherwise weld will fail silently. |
| for(String beansXmlPath: REQUIRED_BEANS_XML_PATHS) { |
| Resource res = baseResource.addPath(beansXmlPath); |
| if (res == null) |
| { |
| // not found, skip it |
| continue; |
| } |
| |
| if (res.exists()) |
| { |
| foundBeansXml = true; |
| } |
| |
| if (res.isDirectory()) |
| { |
| throw new IOException("Directory conflicts with expected file: " + res.getURI().toASCIIString()); |
| } |
| } |
| |
| if (!foundBeansXml) |
| { |
| StringBuilder err = new StringBuilder(); |
| err.append("Unable to find required beans.xml from the baseResource: "); |
| err.append(baseResource.getURI().toASCIIString()).append(System.lineSeparator()); |
| err.append("Searched for: "); |
| for (String beansXmlPath : REQUIRED_BEANS_XML_PATHS) |
| { |
| err.append(System.lineSeparator()); |
| err.append(" ").append(beansXmlPath); |
| } |
| LOG.warn("ERROR: {}",err.toString()); |
| throw new IOException(err.toString()); |
| } |
| |
| // Initialize Weld |
| JettyWeldInitializer.initContext(this); |
| |
| // Wire up Weld (what's usually done via the ServletContainerInitializer) |
| ServletContext ctx = getServletContext(); |
| |
| // Fake the call to ServletContainerInitializer |
| ClassLoader orig = Thread.currentThread().getContextClassLoader(); |
| try |
| { |
| Thread.currentThread().setContextClassLoader(ctx.getClassLoader()); |
| |
| EnhancedListener weldListener = new EnhancedListener(); |
| Set<Class<?>> classes = Collections.emptySet(); |
| weldListener.onStartup(classes,ctx); |
| |
| // add the rest of the Weld Listeners |
| ctx.addListener(weldListener); |
| } |
| finally |
| { |
| Thread.currentThread().setContextClassLoader(orig); |
| } |
| |
| // Let normal ServletContextHandler startup continue its merry way |
| super.doStart(); |
| } |
| } |