| // Copyright 2006, 2007, 2008, 2009 The Apache Software Foundation |
| // |
| // Licensed 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.tapestry5.internal.services; |
| |
| import org.apache.tapestry5.ioc.internal.util.CollectionFactory; |
| import org.apache.tapestry5.ioc.internal.util.InternalUtils; |
| import org.apache.tapestry5.ioc.util.Stack; |
| import org.apache.tapestry5.services.Context; |
| |
| import javax.servlet.ServletContext; |
| import java.io.File; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| public class ContextImpl implements Context |
| { |
| private final ServletContext servletContext; |
| |
| public ContextImpl(ServletContext servletContext) |
| { |
| this.servletContext = servletContext; |
| } |
| |
| public URL getResource(String path) |
| { |
| try |
| { |
| return servletContext.getResource(path); |
| } |
| catch (MalformedURLException ex) |
| { |
| throw new RuntimeException(ex); |
| } |
| } |
| |
| public File getRealFile(String path) |
| { |
| String realPath = servletContext.getRealPath(path); |
| |
| return realPath == null ? null : new File(realPath); |
| } |
| |
| public String getInitParameter(String name) |
| { |
| return servletContext.getInitParameter(name); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public List<String> getResourcePaths(String path) |
| { |
| List<String> result = CollectionFactory.newList(); |
| Stack<String> queue = CollectionFactory.newStack(); |
| |
| queue.push(path); |
| |
| while (!queue.isEmpty()) |
| { |
| String current = queue.pop(); |
| |
| Set<String> matches = servletContext.getResourcePaths(current); |
| |
| // Tomcat 5.5.20 inside JBoss 4.0.2 has been observed to do this! |
| // Perhaps other servers do as well. |
| |
| if (matches == null) continue; |
| |
| for (String match : matches) |
| { |
| // Folders are queued up for further expansion. |
| |
| if (match.endsWith("/")) queue.push(match); |
| else result.add(match); |
| } |
| } |
| |
| Collections.sort(result); |
| |
| return result; |
| } |
| |
| public Object getAttribute(String name) |
| { |
| return servletContext.getAttribute(name); |
| } |
| |
| public List<String> getAttributeNames() |
| { |
| return InternalUtils.toList(servletContext.getAttributeNames()); |
| } |
| |
| public String getMimeType(String file) |
| { |
| return servletContext.getMimeType(file); |
| } |
| } |