435217 Remove deprecated TagLibConfiguration

1 files changed, 0 insertions, 532 deletions

diff --git a/jetty-webapp/src/main/java/org/eclipse/jetty/webapp/TagLibConfiguration.java b/jetty-webapp/src/main/java/org/eclipse/jetty/webapp/TagLibConfiguration.java
deleted file mode 100644
index 5c8ee37eed..0000000000
--- a/jetty-webapp/src/main/java/org/eclipse/jetty/webapp/TagLibConfiguration.java
+++ /dev/null
@@ -1,532 +0,0 @@
-//
-//  ========================================================================
-//  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.webapp;
-
-import java.io.IOException;
-import java.net.URI;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.EventListener;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Set;
-
-import javax.servlet.Servlet;
-import javax.servlet.ServletContextEvent;
-import javax.servlet.ServletContextListener;
-
-import org.eclipse.jetty.util.Loader;
-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.xml.XmlParser;
-
-/* ------------------------------------------------------------ */
-/** TagLibConfiguration.
- *
- * The class searches for TLD descriptors found in web.xml, in WEB-INF/*.tld files of the web app
- * or *.tld files within jars found in WEB-INF/lib of the webapp.   Any listeners defined in these
- * tld's are added to the context.
- *
- * <bile>This is total rubbish special case for JSPs! If there was a general use-case for web app
- * frameworks to register listeners directly, then a generic mechanism could have been added to the servlet
- * spec.  Instead some special purpose JSP support is required that breaks all sorts of encapsulation rules as
- * the servlet container must go searching for and then parsing the descriptors for one particular framework.
- * It only appears to be used by JSF, which is being developed by the same developer who implemented this
- * feature in the first place!
- * </bile>
- *
- *
- * Note- this has been superceded by the new TldScanner in jasper which uses ServletContainerInitializer to
- * find all the listeners in tag libs and register them.
- */
-@Deprecated
-public class TagLibConfiguration extends AbstractConfiguration
-{
-    private static final Logger LOG = Log.getLogger(TagLibConfiguration.class);
-
-    public static final String TLD_RESOURCES = "org.eclipse.jetty.tlds";
-
-
-    /**
-     * TagLibListener
-     *
-     * A listener that does the job of finding .tld files that contain
-     * (other) listeners that need to be called by the servlet container.
-     *
-     * This implementation is necessitated by the fact that it is only
-     * after all the Configuration classes have run that we will
-     * parse web.xml/fragments etc and thus find tlds mentioned therein.
-     *
-     * Note: TagLibConfiguration is not used in jetty-8 as jasper (JSP engine)
-     * uses the new TldScanner class - a ServletContainerInitializer from
-     * Servlet Spec 3 - to find all listeners in taglibs and register them
-     * with the servlet container.
-     */
-    public  class TagLibListener implements ServletContextListener {
-        private List<EventListener> _tldListeners;
-        private WebAppContext _context;
-
-        public TagLibListener (WebAppContext context) {
-            _context = context;
-        }
-
-        public void contextDestroyed(ServletContextEvent sce)
-        {
-            if (_tldListeners == null)
-                return;
-
-            for (int i=_tldListeners.size()-1; i>=0; i--) {
-                EventListener l = _tldListeners.get(i);
-                if (l instanceof ServletContextListener) {
-                    ((ServletContextListener)l).contextDestroyed(sce);
-                }
-            }
-        }
-
-        public void contextInitialized(ServletContextEvent sce)
-        {
-            try
-            {
-                //For jasper 2.1:
-                //Get the system classpath tlds and tell jasper about them, if jasper is on the classpath
-                try
-                {
-
-                    ClassLoader loader = _context.getClassLoader();
-                    if (loader == null || loader.getParent() == null)
-                        loader = getClass().getClassLoader();
-                    else
-                        loader = loader.getParent();
-                    //Choose a class that should be present if tlds are in use
-                    Class<?> clazz = loader.loadClass("org.apache.jasper.compiler.TagFileProcessor");
-                    assert clazz!=null;
-                    Collection<Resource> tld_resources = (Collection<Resource>)_context.getAttribute(TLD_RESOURCES);
-
-                    Map<URI, List<String>> tldMap = new HashMap<URI, List<String>>();
-
-                    if (tld_resources != null)
-                    {
-                        //get the jar file names of the files
-                        for (Resource r:tld_resources)
-                        {
-                            Resource jarResource = extractJarResource(r);
-                            //jasper is happy with an empty list of tlds
-                            if (!tldMap.containsKey(jarResource.getURI()))
-                                tldMap.put(jarResource.getURI(), null);
-
-                        }
-                        //set the magic context attribute that tells jasper about the system tlds
-                        sce.getServletContext().setAttribute("com.sun.appserv.tld.map", tldMap);
-                    }
-                }
-                catch (ClassNotFoundException e)
-                {
-                    LOG.ignore(e);
-                }
-
-                //find the tld files and parse them to get out their
-                //listeners
-                Set<Resource> tlds = findTldResources();
-                List<TldDescriptor> descriptors = parseTlds(tlds);
-                processTlds(descriptors);
-
-                if (_tldListeners == null)
-                    return;
-
-                //call the listeners that are ServletContextListeners, put the
-                //rest into the context's list of listeners to call at the appropriate
-                //moment
-                for (EventListener l:_tldListeners) {
-                    if (l instanceof ServletContextListener) {
-                        ((ServletContextListener)l).contextInitialized(sce);
-                    } else {
-                        _context.addEventListener(l);
-                    }
-                }
-
-            }
-            catch (Exception e) {
-                LOG.warn(e);
-            }
-        }
-
-
-
-
-        private Resource extractJarResource (Resource r)
-        {
-            if (r == null)
-                return null;
-
-            try
-            {
-                String url = r.getURI().toURL().toString();
-                int idx = url.lastIndexOf("!/");
-                if (idx >= 0)
-                    url = url.substring(0, idx);
-                if (url.startsWith("jar:"))
-                    url = url.substring(4);
-                return Resource.newResource(url);
-            }
-            catch (IOException e)
-            {
-                LOG.warn(e);
-                return null;
-            }
-        }
-
-        /**
-         * Find all the locations that can harbour tld files that may contain
-         * a listener which the web container is supposed to instantiate and
-         * call.
-         *
-         * @return
-         * @throws IOException
-         */
-        private Set<Resource> findTldResources () throws IOException {
-
-            Set<Resource> tlds = new HashSet<Resource>();
-
-            // Find tld's from web.xml
-            // When web.xml was processed, it should have created aliases for all TLDs.  So search resources aliases
-            // for aliases ending in tld
-            if (_context.getResourceAliases()!=null &&
-                    _context.getBaseResource()!=null &&
-                    _context.getBaseResource().exists())
-            {
-                Iterator<String> iter=_context.getResourceAliases().values().iterator();
-                while(iter.hasNext())
-                {
-                    String location = iter.next();
-                    if (location!=null && location.toLowerCase(Locale.ENGLISH).endsWith(".tld"))
-                    {
-                        if (!location.startsWith("/"))
-                            location="/WEB-INF/"+location;
-                        Resource l=_context.getBaseResource().addPath(location);
-                        tlds.add(l);
-                    }
-                }
-            }
-
-            // Look for any tlds in WEB-INF directly.
-            Resource web_inf = _context.getWebInf();
-            if (web_inf!=null)
-            {
-                String[] contents = web_inf.list();
-                for (int i=0;contents!=null && i<contents.length;i++)
-                {
-                    if (contents[i]!=null && contents[i].toLowerCase(Locale.ENGLISH).endsWith(".tld"))
-                    {
-                        Resource l=web_inf.addPath(contents[i]);
-                        tlds.add(l);
-                    }
-                }
-            }
-
-            //Look for tlds in common location of WEB-INF/tlds
-            if (web_inf != null) {
-                Resource web_inf_tlds = _context.getWebInf().addPath("/tlds/");
-                if (web_inf_tlds.exists() && web_inf_tlds.isDirectory()) {
-                    String[] contents = web_inf_tlds.list();
-                    for (int i=0;contents!=null && i<contents.length;i++)
-                    {
-                        if (contents[i]!=null && contents[i].toLowerCase(Locale.ENGLISH).endsWith(".tld"))
-                        {
-                            Resource l=web_inf_tlds.addPath(contents[i]);
-                            tlds.add(l);
-                        }
-                    }
-                }
-            }
-
-            // Add in tlds found in META-INF of jars. The jars that will be scanned are controlled by
-            // the patterns defined in the context attributes: org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern,
-            // and org.eclipse.jetty.server.webapp.WebInfIncludeJarPattern
-            @SuppressWarnings("unchecked")
-            Collection<Resource> tld_resources=(Collection<Resource>)_context.getAttribute(TLD_RESOURCES);
-            if (tld_resources!=null)
-                tlds.addAll(tld_resources);
-
-            return tlds;
-        }
-
-
-        /**
-         * Parse xml into in-memory tree
-         * @param tlds
-         * @return
-         */
-        private List<TldDescriptor> parseTlds (Set<Resource> tlds) {
-            List<TldDescriptor> descriptors = new ArrayList<TldDescriptor>();
-
-            Resource tld = null;
-            Iterator<Resource> iter = tlds.iterator();
-            while (iter.hasNext())
-            {
-                try
-                {
-                    tld = iter.next();
-                    if (LOG.isDebugEnabled()) LOG.debug("TLD="+tld);
-
-                    TldDescriptor d = new TldDescriptor(tld);
-                    d.parse();
-                    descriptors.add(d);
-                }
-                catch(Exception e)
-                {
-                    LOG.warn("Unable to parse TLD: " + tld,e);
-                }
-            }
-            return descriptors;
-        }
-
-
-        /**
-         * Create listeners from the parsed tld trees
-         * @param descriptors
-         * @throws Exception
-         */
-        private void processTlds (List<TldDescriptor> descriptors) throws Exception {
-
-            TldProcessor processor = new TldProcessor();
-            for (TldDescriptor d:descriptors)
-                processor.process(_context, d);
-
-            _tldListeners = new ArrayList<EventListener>(processor.getListeners());
-        }
-    }
-
-
-
-
-    /**
-     * TldDescriptor
-     *
-     *
-     */
-    public static class TldDescriptor extends Descriptor
-    {
-        protected static XmlParser __parserSingleton;
-
-        public TldDescriptor(Resource xml)
-        {
-            super(xml);
-        }
-
-        @Override
-        public void ensureParser() throws ClassNotFoundException
-        {
-           if (__parserSingleton == null)
-               __parserSingleton = newParser();
-            _parser = __parserSingleton;
-        }
-
-        @Override
-        public XmlParser newParser() throws ClassNotFoundException
-        {
-            // Create a TLD parser
-            XmlParser parser = new XmlParser(false);
-
-            URL taglib11=null;
-            URL taglib12=null;
-            URL taglib20=null;
-            URL taglib21=null;
-
-            try
-            {
-                Class<?> jsp_page = Loader.loadClass(WebXmlConfiguration.class,"javax.servlet.jsp.JspPage");
-                taglib11=jsp_page.getResource("javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd");
-                taglib12=jsp_page.getResource("javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd");
-                taglib20=jsp_page.getResource("javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd");
-                taglib21=jsp_page.getResource("javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd");
-            }
-            catch(Exception e)
-            {
-                LOG.ignore(e);
-            }
-            finally
-            {
-                if(taglib11==null)
-                    taglib11=Loader.getResource(Servlet.class,"javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd");
-                if(taglib12==null)
-                    taglib12=Loader.getResource(Servlet.class,"javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd");
-                if(taglib20==null)
-                    taglib20=Loader.getResource(Servlet.class,"javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd");
-                if(taglib21==null)
-                    taglib21=Loader.getResource(Servlet.class,"javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd");
-            }
-
-
-            if(taglib11!=null)
-            {
-                redirect(parser, "web-jsptaglib_1_1.dtd",taglib11);
-                redirect(parser, "web-jsptaglibrary_1_1.dtd",taglib11);
-            }
-            if(taglib12!=null)
-            {
-                redirect(parser, "web-jsptaglib_1_2.dtd",taglib12);
-                redirect(parser, "web-jsptaglibrary_1_2.dtd",taglib12);
-            }
-            if(taglib20!=null)
-            {
-                redirect(parser, "web-jsptaglib_2_0.xsd",taglib20);
-                redirect(parser, "web-jsptaglibrary_2_0.xsd",taglib20);
-            }
-            if(taglib21!=null)
-            {
-                redirect(parser, "web-jsptaglib_2_1.xsd",taglib21);
-                redirect(parser, "web-jsptaglibrary_2_1.xsd",taglib21);
-            }
-
-            parser.setXpath("/taglib/listener/listener-class");
-            return parser;
-        }
-
-        public void parse ()
-        throws Exception
-        {
-            ensureParser();
-            try
-            {
-                //xerces on apple appears to sometimes close the zip file instead
-                //of the inputstream, so try opening the input stream, but if
-                //that doesn't work, fallback to opening a new url
-                _root = _parser.parse(_xml.getInputStream());
-            }
-            catch (Exception e)
-            {
-                _root = _parser.parse(_xml.getURL().toString());
-            }
-
-            if (_root==null)
-            {
-                LOG.warn("No TLD root in {}",_xml);
-            }
-        }
-    }
-
-
-    /**
-     * TldProcessor
-     *
-     * Process TldDescriptors representing tag libs to find listeners.
-     */
-    public class TldProcessor extends IterativeDescriptorProcessor
-    {
-        public static final String TAGLIB_PROCESSOR = "org.eclipse.jetty.tagLibProcessor";
-        XmlParser _parser;
-        List<XmlParser.Node> _roots = new ArrayList<XmlParser.Node>();
-        List<EventListener> _listeners;
-
-
-        public TldProcessor ()
-        throws Exception
-        {
-            _listeners = new ArrayList<EventListener>();
-            registerVisitor("listener", this.getClass().getDeclaredMethod("visitListener", __signature));
-        }
-
-
-        public void visitListener (WebAppContext context, Descriptor descriptor, XmlParser.Node node)
-        {
-            String className=node.getString("listener-class",false,true);
-            if (LOG.isDebugEnabled())
-                LOG.debug("listener="+className);
-
-            try
-            {
-                Class<?> listenerClass = context.loadClass(className);
-                EventListener l = (EventListener)listenerClass.newInstance();
-                _listeners.add(l);
-            }
-            catch(Exception e)
-            {
-                LOG.warn("Could not instantiate listener "+className+": "+e);
-                LOG.debug(e);
-            }
-            catch(Error e)
-            {
-                LOG.warn("Could not instantiate listener "+className+": "+e);
-                LOG.debug(e);
-            }
-
-        }
-
-        @Override
-        public void end(WebAppContext context, Descriptor descriptor)
-        {
-        }
-
-        @Override
-        public void start(WebAppContext context, Descriptor descriptor)
-        {
-        }
-
-        public List<EventListener> getListeners() {
-            return _listeners;
-        }
-    }
-
-
-    @Override
-    public void preConfigure(WebAppContext context) throws Exception
-    {
-        try
-        {
-            Class<?> jsp_page = Loader.loadClass(WebXmlConfiguration.class,"javax.servlet.jsp.JspPage");
-        }
-        catch (Exception e)
-        {
-            //no jsp available, don't parse TLDs
-            return;
-        }
-
-        TagLibListener tagLibListener = new TagLibListener(context);
-        context.addEventListener(tagLibListener);
-    }
-
-
-    @Override
-    public void configure (WebAppContext context) throws Exception
-    {
-    }
-
-    @Override
-    public void postConfigure(WebAppContext context) throws Exception
-    {
-    }
-
-
-    @Override
-    public void cloneConfigure(WebAppContext template, WebAppContext context) throws Exception
-    {
-    }
-
-
-    @Override
-    public void deconfigure(WebAppContext context) throws Exception
-    {
-    }
-}