1 /* 2 * Copyright (C) 2010 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.clearsilver.jsilver.interpreter; 18 19 import com.google.clearsilver.jsilver.autoescape.EscapeMode; 20 import com.google.clearsilver.jsilver.exceptions.JSilverIOException; 21 import com.google.clearsilver.jsilver.resourceloader.ResourceLoader; 22 import com.google.clearsilver.jsilver.syntax.SyntaxTreeBuilder; 23 import com.google.clearsilver.jsilver.syntax.TemplateSyntaxTree; 24 25 import java.io.IOException; 26 import java.io.Reader; 27 import java.io.StringReader; 28 29 /** 30 * Loads a template from disk, and parses it into an AST. Does not do any caching. 31 */ 32 public class LoadingTemplateFactory implements TemplateFactory { 33 34 private final SyntaxTreeBuilder syntaxTreeBuilder = new SyntaxTreeBuilder(); 35 36 public TemplateSyntaxTree find(String templateName, ResourceLoader resourceLoader, 37 EscapeMode escapeMode) { 38 try { 39 Reader reader = resourceLoader.openOrFail(templateName); 40 try { 41 return syntaxTreeBuilder.parse(reader, templateName, escapeMode); 42 } finally { 43 reader.close(); 44 } 45 } catch (IOException e) { 46 throw new JSilverIOException(e); 47 } 48 } 49 50 public TemplateSyntaxTree createTemp(String content, EscapeMode escapeMode) { 51 return syntaxTreeBuilder.parse(new StringReader(content), "", escapeMode); 52 } 53 54 } 55