/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2015-2017 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.jersey.server.mvc.freemarker;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletContext;
import freemarker.cache.ClassTemplateLoader;
import freemarker.cache.FileTemplateLoader;
import freemarker.cache.MultiTemplateLoader;
import freemarker.cache.TemplateLoader;
import freemarker.cache.WebappTemplateLoader;
import freemarker.template.Configuration;
/**
* Handy {@link FreemarkerConfigurationFactory} that supplies a minimally
* configured {@link freemarker.template.Configuration Configuration} able to
* create {@link freemarker.template.Template Freemarker templates}.
* The recommended method to provide custom Freemarker configuration is to
* sub-class this class, further customize the
* {@link freemarker.template.Configuration configuration} as desired in that
* class, and then register the sub-class with the {@link FreemarkerMvcFeature}
* TEMPLATE_OBJECT_FACTORY property.
*
* @author Jeff Wilde (jeff.wilde at complicatedrobot.com)
*/
public class FreemarkerDefaultConfigurationFactory implements FreemarkerConfigurationFactory {
protected final Configuration configuration;
public FreemarkerDefaultConfigurationFactory(ServletContext servletContext) {
super();
// Create different loaders.
final List<TemplateLoader> loaders = new ArrayList<>();
if (servletContext != null) {
loaders.add(new WebappTemplateLoader(servletContext));
}
loaders.add(new ClassTemplateLoader(FreemarkerDefaultConfigurationFactory.class, "/"));
try {
loaders.add(new FileTemplateLoader(new File("/")));
} catch (IOException e) {
// NOOP
}
// Create Base configuration.
configuration = new Configuration();
configuration.setTemplateLoader(new MultiTemplateLoader(loaders.toArray(new TemplateLoader[loaders.size()])));
}
@Override
public Configuration getConfiguration() {
return configuration;
}
}