| // |
| // ======================================================================== |
| // 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.servlet; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.EnumSet; |
| import java.util.List; |
| |
| import javax.servlet.DispatcherType; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.FilterRegistration; |
| import javax.servlet.ServletException; |
| |
| import org.eclipse.jetty.servlet.Holder.Source; |
| import org.eclipse.jetty.util.TypeUtil; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| |
| /* --------------------------------------------------------------------- */ |
| /** |
| * |
| */ |
| public class FilterHolder extends Holder<Filter> |
| { |
| private static final Logger LOG = Log.getLogger(FilterHolder.class); |
| |
| /* ------------------------------------------------------------ */ |
| private transient Filter _filter; |
| private transient Config _config; |
| private transient FilterRegistration.Dynamic _registration; |
| |
| /* ---------------------------------------------------------------- */ |
| /** Constructor |
| */ |
| public FilterHolder() |
| { |
| this(Source.EMBEDDED); |
| } |
| |
| /* ---------------------------------------------------------------- */ |
| /** Constructor |
| */ |
| public FilterHolder(Holder.Source source) |
| { |
| super(source); |
| } |
| |
| /* ---------------------------------------------------------------- */ |
| /** Constructor |
| */ |
| public FilterHolder(Class<? extends Filter> filter) |
| { |
| this(Source.EMBEDDED); |
| setHeldClass(filter); |
| } |
| |
| /* ---------------------------------------------------------------- */ |
| /** Constructor for existing filter. |
| */ |
| public FilterHolder(Filter filter) |
| { |
| this(Source.EMBEDDED); |
| setFilter(filter); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public void doStart() |
| throws Exception |
| { |
| super.doStart(); |
| |
| if (!javax.servlet.Filter.class |
| .isAssignableFrom(_class)) |
| { |
| String msg = _class+" is not a javax.servlet.Filter"; |
| super.stop(); |
| throw new IllegalStateException(msg); |
| } |
| |
| if (_filter==null) |
| { |
| try |
| { |
| _filter=((ServletContextHandler.Context)_servletHandler.getServletContext()).createFilter(getHeldClass()); |
| } |
| catch (ServletException se) |
| { |
| Throwable cause = se.getRootCause(); |
| if (cause instanceof InstantiationException) |
| throw (InstantiationException)cause; |
| if (cause instanceof IllegalAccessException) |
| throw (IllegalAccessException)cause; |
| throw se; |
| } |
| } |
| |
| _config=new Config(); |
| _filter.init(_config); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public void doStop() |
| throws Exception |
| { |
| if (_filter!=null) |
| { |
| try |
| { |
| destroyInstance(_filter); |
| } |
| catch (Exception e) |
| { |
| LOG.warn(e); |
| } |
| } |
| if (!_extInstance) |
| _filter=null; |
| |
| _config=null; |
| super.doStop(); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public void destroyInstance (Object o) |
| throws Exception |
| { |
| if (o==null) |
| return; |
| Filter f = (Filter)o; |
| f.destroy(); |
| getServletHandler().destroyFilter(f); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public synchronized void setFilter(Filter filter) |
| { |
| _filter=filter; |
| _extInstance=true; |
| setHeldClass(filter.getClass()); |
| if (getName()==null) |
| setName(filter.getClass().getName()); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public Filter getFilter() |
| { |
| return _filter; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String toString() |
| { |
| return getName(); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public FilterRegistration.Dynamic getRegistration() |
| { |
| if (_registration == null) |
| _registration = new Registration(); |
| return _registration; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| /* ------------------------------------------------------------ */ |
| /* ------------------------------------------------------------ */ |
| protected class Registration extends HolderRegistration implements FilterRegistration.Dynamic |
| { |
| public void addMappingForServletNames(EnumSet<DispatcherType> dispatcherTypes, boolean isMatchAfter, String... servletNames) |
| { |
| illegalStateIfContextStarted(); |
| FilterMapping mapping = new FilterMapping(); |
| mapping.setFilterHolder(FilterHolder.this); |
| mapping.setServletNames(servletNames); |
| mapping.setDispatcherTypes(dispatcherTypes); |
| if (isMatchAfter) |
| _servletHandler.addFilterMapping(mapping); |
| else |
| _servletHandler.prependFilterMapping(mapping); |
| } |
| |
| public void addMappingForUrlPatterns(EnumSet<DispatcherType> dispatcherTypes, boolean isMatchAfter, String... urlPatterns) |
| { |
| illegalStateIfContextStarted(); |
| FilterMapping mapping = new FilterMapping(); |
| mapping.setFilterHolder(FilterHolder.this); |
| mapping.setPathSpecs(urlPatterns); |
| mapping.setDispatcherTypes(dispatcherTypes); |
| if (isMatchAfter) |
| _servletHandler.addFilterMapping(mapping); |
| else |
| _servletHandler.prependFilterMapping(mapping); |
| } |
| |
| public Collection<String> getServletNameMappings() |
| { |
| FilterMapping[] mappings =_servletHandler.getFilterMappings(); |
| List<String> names=new ArrayList<String>(); |
| for (FilterMapping mapping : mappings) |
| { |
| if (mapping.getFilterHolder()!=FilterHolder.this) |
| continue; |
| String[] servlets=mapping.getServletNames(); |
| if (servlets!=null && servlets.length>0) |
| names.addAll(Arrays.asList(servlets)); |
| } |
| return names; |
| } |
| |
| public Collection<String> getUrlPatternMappings() |
| { |
| FilterMapping[] mappings =_servletHandler.getFilterMappings(); |
| List<String> patterns=new ArrayList<String>(); |
| for (FilterMapping mapping : mappings) |
| { |
| if (mapping.getFilterHolder()!=FilterHolder.this) |
| continue; |
| String[] specs=mapping.getPathSpecs(); |
| patterns.addAll(TypeUtil.asList(specs)); |
| } |
| return patterns; |
| } |
| } |
| |
| /* ------------------------------------------------------------ */ |
| /* ------------------------------------------------------------ */ |
| /* ------------------------------------------------------------ */ |
| class Config extends HolderConfig implements FilterConfig |
| { |
| /* ------------------------------------------------------------ */ |
| public String getFilterName() |
| { |
| return _name; |
| } |
| } |
| } |