groovy.text.markup.TemplateResolver Maven / Gradle / Ivy

/*
 * Copyright 2003-2014 the original author or authors.
 *
 * Licensed 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 groovy.text.markup;

import java.io.IOException;
import java.net.URL;

/**
 * Interface for template resolvers, which, given a template identifier, return an URL where the template
 * can be loaded.
 *
 * @author Cédric Champeau
 */
public interface TemplateResolver {
    /**
     * This method is called once the template engine is initialized, providing the resolver with the
     * template engine configuration and its template class loader.
     * @param templateClassLoader the classloader where templates will be searched for
     * @param configuration the configuration of the template engine
     */
    void configure(ClassLoader templateClassLoader, TemplateConfiguration configuration);

    /**
     * Resolvers must implement this method in order to resolve a template, given a template path. They
     * must return a valid URL or an IOException.
     * @param templatePath path to the template
     * @return the template URL, that will be used to load the template
     * @throws IOException
     */
    URL resolveTemplate(String templatePath) throws IOException;
}