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//
// ========================================================================
// Copyright (c) 1995-2014 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.quickstart;
import org.eclipse.jetty.annotations.AnnotationConfiguration;
import org.eclipse.jetty.annotations.AnnotationDecorator;
import org.eclipse.jetty.annotations.ServletContainerInitializersStarter;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.util.resource.Resource;
import org.eclipse.jetty.webapp.StandardDescriptorProcessor;
import org.eclipse.jetty.webapp.WebAppClassLoader;
import org.eclipse.jetty.webapp.WebAppContext;
import org.eclipse.jetty.webapp.WebInfConfiguration;
/**
* QuickStartConfiguration
*
* Re-inflate a deployable webapp from a saved effective-web.xml
* which combines all pre-parsed web xml descriptors and annotations.
*
*/
public class QuickStartConfiguration extends WebInfConfiguration
{
private static final Logger LOG = Log.getLogger(QuickStartConfiguration.class);
/**
* @see org.eclipse.jetty.webapp.AbstractConfiguration#preConfigure(org.eclipse.jetty.webapp.WebAppContext)
*/
@Override
public void preConfigure(WebAppContext context) throws Exception
{
//check that webapp is suitable for quick start - it is not a packed war
String war = context.getWar();
if (war == null || war.length()<=0)
throw new IllegalStateException ("No location for webapp");
//Make a temp directory for the webapp if one is not already set
resolveTempDirectory(context);
Resource webApp = context.newResource(war);
// Accept aliases for WAR files
if (webApp.getAlias() != null)
{
LOG.debug(webApp + " anti-aliased to " + webApp.getAlias());
webApp = context.newResource(webApp.getAlias());
}
// Is the WAR usable directly?
if (!webApp.exists() || !webApp.isDirectory() || webApp.toString().startsWith("jar:"))
throw new IllegalStateException("Webapp does not exist or is not unpacked");
context.setBaseResource(webApp);
LOG.debug("webapp={}",webApp);
//look for quickstart-web.xml in WEB-INF of webapp
Resource quickStartWebXml = getQuickStartWebXml(context);
LOG.debug("quickStartWebXml={}",quickStartWebXml);
context.getMetaData().setWebXml(quickStartWebXml);
}
/**
* Get the quickstart-web.xml file as a Resource.
*
* @param context
* @return
* @throws Exception
*/
public Resource getQuickStartWebXml (WebAppContext context) throws Exception
{
Resource webInf = context.getWebInf();
if (webInf == null || !webInf.exists())
throw new IllegalStateException("No WEB-INF");
LOG.debug("webinf={}",webInf);
Resource quickStartWebXml = webInf.addPath("quickstart-web.xml");
if (!quickStartWebXml.exists())
throw new IllegalStateException ("No WEB-INF/quickstart-web.xml");
return quickStartWebXml;
}
/**
* @see org.eclipse.jetty.webapp.AbstractConfiguration#configure(org.eclipse.jetty.webapp.WebAppContext)
*/
@Override
public void configure(WebAppContext context) throws Exception
{
LOG.debug("configure {}",this);
if (context.isStarted())
{
LOG.warn("Cannot configure webapp after it is started");
return;
}
//Temporary: set up the classpath here. This should be handled by the QuickStartDescriptorProcessor
Resource webInf = context.getWebInf();
if (webInf != null && webInf.isDirectory() && context.getClassLoader() instanceof WebAppClassLoader)
{
// Look for classes directory
Resource classes= webInf.addPath("classes/");
if (classes.exists())
((WebAppClassLoader)context.getClassLoader()).addClassPath(classes);
// Look for jars
Resource lib= webInf.addPath("lib/");
if (lib.exists() || lib.isDirectory())
((WebAppClassLoader)context.getClassLoader()).addJars(lib);
}
//add the processor to handle normal web.xml content
context.getMetaData().addDescriptorProcessor(new StandardDescriptorProcessor());
//add a processor to handle extended web.xml format
context.getMetaData().addDescriptorProcessor(new QuickStartDescriptorProcessor());
//add a decorator that will find introspectable annotations
context.addDecorator(new AnnotationDecorator(context)); //this must be the last Decorator because they are run in reverse order!
//add a context bean that will run ServletContainerInitializers as the context starts
ServletContainerInitializersStarter starter = (ServletContainerInitializersStarter)context.getAttribute(AnnotationConfiguration.CONTAINER_INITIALIZER_STARTER);
if (starter != null)
throw new IllegalStateException("ServletContainerInitializersStarter already exists");
starter = new ServletContainerInitializersStarter(context);
context.setAttribute(AnnotationConfiguration.CONTAINER_INITIALIZER_STARTER, starter);
context.addBean(starter, true);
LOG.debug("configured {}",this);
}
}
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