| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.struts2.dispatcher; |
| |
| import com.opensymphony.xwork2.ActionContext; |
| import org.apache.struts2.StrutsConstants; |
| |
| import java.util.*; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Contains initialization operations |
| */ |
| public class InitOperations { |
| |
| public InitOperations() { |
| } |
| |
| /** |
| * Creates and initializes the dispatcher |
| * |
| * @param filterConfig host configuration |
| * |
| * @return the dispatcher |
| */ |
| public Dispatcher initDispatcher( HostConfig filterConfig ) { |
| Dispatcher dispatcher = createDispatcher(filterConfig); |
| dispatcher.init(); |
| return dispatcher; |
| } |
| |
| /** |
| * Initializes the static content loader with the filter configuration |
| * |
| * @param filterConfig host configuration |
| * @param dispatcher the dispatcher |
| * @return the static content loader |
| */ |
| public StaticContentLoader initStaticContentLoader( HostConfig filterConfig, Dispatcher dispatcher ) { |
| StaticContentLoader loader = dispatcher.getContainer().getInstance(StaticContentLoader.class); |
| loader.setHostConfig(filterConfig); |
| return loader; |
| } |
| |
| /** |
| * @return The dispatcher on the thread. |
| * |
| * @throws IllegalStateException If there is no dispatcher available |
| */ |
| public Dispatcher findDispatcherOnThread() { |
| Dispatcher dispatcher = Dispatcher.getInstance(); |
| if (dispatcher == null) { |
| throw new IllegalStateException("Must have the StrutsPrepareFilter execute before this one"); |
| } |
| return dispatcher; |
| } |
| |
| /** |
| * Create a {@link Dispatcher} |
| * |
| * @param filterConfig host configuration |
| * |
| * @return The dispatcher on the thread. |
| */ |
| protected Dispatcher createDispatcher(HostConfig filterConfig) { |
| Map<String, String> params = new HashMap<>(); |
| for ( Iterator<String> parameterNames = filterConfig.getInitParameterNames(); parameterNames.hasNext(); ) { |
| String name = parameterNames.next(); |
| String value = filterConfig.getInitParameter(name); |
| params.put(name, value); |
| } |
| return new Dispatcher(filterConfig.getServletContext(), params); |
| } |
| |
| public void cleanup() { |
| ActionContext.clear(); |
| } |
| |
| /** |
| * Extract a list of patterns to exclude from request filtering |
| * |
| * @param dispatcher The dispatcher to check for exclude pattern configuration |
| * |
| * @return a List of Patterns for request to exclude if apply, or <tt>null</tt> |
| * |
| * @see org.apache.struts2.StrutsConstants#STRUTS_ACTION_EXCLUDE_PATTERN |
| */ |
| public List<Pattern> buildExcludedPatternsList( Dispatcher dispatcher ) { |
| return buildExcludedPatternsList(dispatcher.getContainer().getInstance(String.class, StrutsConstants.STRUTS_ACTION_EXCLUDE_PATTERN)); |
| } |
| |
| private List<Pattern> buildExcludedPatternsList( String patterns ) { |
| if (null != patterns && patterns.trim().length() != 0) { |
| List<Pattern> list = new ArrayList<>(); |
| String[] tokens = patterns.split(","); |
| for ( String token : tokens ) { |
| list.add(Pattern.compile(token.trim())); |
| } |
| return Collections.unmodifiableList(list); |
| } else { |
| return null; |
| } |
| } |
| |
| } |