| /* |
| * 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.osgi.loaders; |
| |
| import java.io.BufferedReader; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.apache.struts2.osgi.DefaultBundleAccessor; |
| import org.apache.velocity.exception.ResourceNotFoundException; |
| import org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader; |
| |
| /** |
| * Finds Velocity templates in bundles |
| */ |
| public class VelocityBundleResourceLoader extends ClasspathResourceLoader { |
| |
| public synchronized InputStream getResourceStream(String name) |
| throws ResourceNotFoundException { |
| if ((name == null) || (name.length() == 0)) { |
| throw new ResourceNotFoundException("No template name provided"); |
| } |
| |
| if (name.startsWith("/")) { |
| name = name.substring(1); |
| } |
| |
| try { |
| return DefaultBundleAccessor.getInstance().loadResourceAsStream(name); |
| } catch (Exception e) { |
| throw new ResourceNotFoundException(e.getMessage()); |
| } |
| } |
| |
| @Override |
| public synchronized Reader getResourceReader(String name, String encoding) throws ResourceNotFoundException { |
| Reader reader = null; |
| InputStream inputStream = getResourceStream(name); |
| |
| if (inputStream == null) { |
| throw new ResourceNotFoundException("Resource resolved to null: " + name); |
| } else { |
| try { |
| reader = new BufferedReader(new InputStreamReader(inputStream, encoding)); |
| } catch (UnsupportedEncodingException uee) { |
| throw new ResourceNotFoundException("Resource [" + name + "] cannot be processed with encoding: " + encoding, uee); |
| } |
| } |
| |
| return reader; |
| } |
| |
| } |