001/* 002 * Copyright 2012-2017 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.web.servlet.view; 018 019import com.samskivert.mustache.Mustache; 020import com.samskivert.mustache.Mustache.Compiler; 021 022import org.springframework.web.servlet.ViewResolver; 023import org.springframework.web.servlet.view.AbstractTemplateViewResolver; 024import org.springframework.web.servlet.view.AbstractUrlBasedView; 025 026/** 027 * Spring MVC {@link ViewResolver} for Mustache. 028 * 029 * @author Brian Clozel 030 * @since 2.0.0 031 */ 032public class MustacheViewResolver extends AbstractTemplateViewResolver { 033 034 private final Mustache.Compiler compiler; 035 036 private String charset; 037 038 /** 039 * Create a {@code MustacheViewResolver} backed by a default instance of a 040 * {@link Compiler}. 041 */ 042 public MustacheViewResolver() { 043 this.compiler = Mustache.compiler(); 044 setViewClass(requiredViewClass()); 045 } 046 047 /** 048 * Create a {@code MustacheViewResolver} backed by a custom instance of a 049 * {@link Compiler}. 050 * @param compiler the Mustache compiler used to compile templates 051 */ 052 public MustacheViewResolver(Compiler compiler) { 053 this.compiler = compiler; 054 setViewClass(requiredViewClass()); 055 } 056 057 @Override 058 protected Class<?> requiredViewClass() { 059 return MustacheView.class; 060 } 061 062 /** 063 * Set the charset. 064 * @param charset the charset 065 */ 066 public void setCharset(String charset) { 067 this.charset = charset; 068 } 069 070 @Override 071 protected AbstractUrlBasedView buildView(String viewName) throws Exception { 072 MustacheView view = (MustacheView) super.buildView(viewName); 073 view.setCompiler(this.compiler); 074 view.setCharset(this.charset); 075 return view; 076 } 077 078}