156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson/* 256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * Copyright (C) 2010 Google Inc. 356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * 456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * Licensed under the Apache License, Version 2.0 (the "License"); 556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * you may not use this file except in compliance with the License. 656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * You may obtain a copy of the License at 756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * 856ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * http://www.apache.org/licenses/LICENSE-2.0 956ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * 1056ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * Unless required by applicable law or agreed to in writing, software 1156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * distributed under the License is distributed on an "AS IS" BASIS, 1256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * See the License for the specific language governing permissions and 1456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * limitations under the License. 1556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson */ 1656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 1756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonpackage com.google.clearsilver.jsilver.resourceloader; 1856ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 1956ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonimport com.google.clearsilver.jsilver.exceptions.JSilverTemplateNotFoundException; 2056ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 2156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonimport java.io.IOException; 2256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonimport java.io.Reader; 2356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonimport java.io.StringReader; 2456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonimport java.util.concurrent.ConcurrentHashMap; 2556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonimport java.util.concurrent.ConcurrentMap; 2656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 2756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson/** 2856ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * ResourceLoader that pulls all items from memory. This is particularly useful for small templates 2956ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * that can be embedded in code (e.g. in unit tests). 3056ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * 3156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * Content needs to be stored first using the {@link #store(String, String)} method. 3256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * 3356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson * @see ResourceLoader 3456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson */ 3556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodsonpublic class InMemoryResourceLoader extends BaseResourceLoader { 3656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 3756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson private ConcurrentMap<String, String> items = new ConcurrentHashMap<String, String>(); 3856ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 3956ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson @Override 4056ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson public Reader open(String name) throws IOException { 4156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson String content = items.get(name); 4256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson return content == null ? null : new StringReader(content); 4356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } 4456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 4556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson @Override 4656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson public Reader openOrFail(String name) throws JSilverTemplateNotFoundException, IOException { 4756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson Reader reader = open(name); 4856ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson if (reader == null) { 4956ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson throw new JSilverTemplateNotFoundException(name); 5056ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } else { 5156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson return reader; 5256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } 5356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } 5456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 5556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson public void store(String name, String contents) { 5656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson items.put(name, contents); 5756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } 5856ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 5956ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson public void remove(String name) { 6056ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson items.remove(name); 6156ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } 6256ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 6356ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson public ConcurrentMap<String, String> getItems() { 6456ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson return items; 6556ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson } 6656ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson 6756ed4167b942ec265f9cee70ac4d71d10b3835ceBen Dodson} 68