| /* |
| * 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 flex.messaging.config; |
| |
| import flex.messaging.io.ArrayList; |
| |
| import javax.servlet.ServletContext; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.Stack; |
| |
| /** |
| * |
| */ |
| public class ServletResourceResolver implements ConfigurationFileResolver |
| { |
| private ServletContext context; |
| private Stack configurationPathStack = new Stack(); |
| |
| /** |
| * Constructor. |
| * |
| * @param context servlet context |
| */ |
| public ServletResourceResolver(ServletContext context) |
| { |
| this.context = context; |
| } |
| |
| /** |
| * Is the configuration file available. |
| * |
| * @param path path to check |
| * @param throwError true if wmethod shold throw a ConfigurationException if path no found. |
| * @return true if path is available |
| * @throws ConfigurationException if throwError is true and path is not available |
| */ |
| public boolean isAvailable(String path, boolean throwError) throws ConfigurationException |
| { |
| boolean available = false; |
| InputStream is = context.getResourceAsStream(path); |
| if (is != null) |
| { |
| try { is.close(); } catch (IOException ignore) { /* ignore */} |
| pushConfigurationFile(path); |
| available = true; |
| } |
| else |
| { |
| if (throwError) |
| { |
| // Please specify a valid ''services.configuration.file'' in web.xml. |
| ConfigurationException e = new ConfigurationException(); |
| e.setMessage(11108, new Object[] {path}); |
| throw e; |
| } |
| } |
| |
| return available; |
| } |
| |
| public InputStream getConfigurationFile(String path) |
| { |
| InputStream is = context.getResourceAsStream(path); |
| if (is != null) |
| { |
| pushConfigurationFile(path); |
| return is; |
| } |
| else |
| { |
| // Please specify a valid ''services.configuration.file'' in web.xml. |
| ConfigurationException e = new ConfigurationException(); |
| e.setMessage(11108, new Object[] {path}); |
| throw e; |
| } |
| } |
| |
| public InputStream getIncludedFile(String src) |
| { |
| String path = configurationPathStack.peek() + "/" + src; |
| InputStream is = context.getResourceAsStream(path); |
| |
| if (is != null) |
| { |
| pushConfigurationFile(path); |
| return is; |
| } |
| else |
| { |
| // Please specify a valid include file. ''{0}'' is invalid. |
| ConfigurationException e = new ConfigurationException(); |
| e.setMessage(11107, new Object[] {path}); |
| throw e; |
| } |
| } |
| |
| public void popIncludedFile() |
| { |
| configurationPathStack.pop(); |
| } |
| |
| /** |
| * Returns the list of XML files (denoted by .xml extension) in the directory |
| * relative to the current configuration file. |
| */ |
| public List getFiles(String dir) |
| { |
| List result = new ArrayList(); |
| String prefix = configurationPathStack.peek() + "/"; |
| Set paths = context.getResourcePaths(prefix + dir); |
| if (paths != null) |
| { |
| for (Object entry : paths) |
| { |
| String path = (String) entry; |
| if (path.endsWith(".xml")) |
| { |
| result.add(path.substring(prefix.length())); |
| } |
| } |
| return result; |
| } |
| else |
| { |
| // Please specify a valid include directory. ''{0}'' is invalid. |
| ConfigurationException e = new ConfigurationException(); |
| e.setMessage(11113, new Object[]{dir}); |
| throw e; |
| } |
| } |
| |
| private void pushConfigurationFile(String path) |
| { |
| String topLevelPath = path.substring(0, path.lastIndexOf('/')); |
| configurationPathStack.push(topLevelPath); |
| } |
| } |