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.autoconfigure.template; 018 019import org.springframework.core.env.Environment; 020import org.springframework.core.io.ResourceLoader; 021 022/** 023 * Indicates the availability of view templates for a particular templating engine such as 024 * FreeMarker or Thymeleaf. 025 * 026 * @author Andy Wilkinson 027 * @since 1.1.0 028 */ 029@FunctionalInterface 030public interface TemplateAvailabilityProvider { 031 032 /** 033 * Returns {@code true} if a template is available for the given {@code view}. 034 * @param view the view name 035 * @param environment the environment 036 * @param classLoader the class loader 037 * @param resourceLoader the resource loader 038 * @return if the template is available 039 */ 040 boolean isTemplateAvailable(String view, Environment environment, 041 ClassLoader classLoader, ResourceLoader resourceLoader); 042 043}