| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 freemarker.cache; |
| |
| import java.io.IOException; |
| |
| import freemarker.core.TemplateConfiguration; |
| import freemarker.template.Configuration; |
| |
| /** |
| * Returns the given {@link TemplateConfiguration} directly, or another {@link TemplateConfigurationFactory}'s result, when |
| * the specified matcher matches the template source. |
| * |
| * @since 2.3.24 |
| */ |
| public class ConditionalTemplateConfigurationFactory extends TemplateConfigurationFactory { |
| |
| private final TemplateSourceMatcher matcher; |
| private final TemplateConfiguration templateConfiguration; |
| private final TemplateConfigurationFactory templateConfigurationFactory; |
| |
| public ConditionalTemplateConfigurationFactory( |
| TemplateSourceMatcher matcher, TemplateConfigurationFactory templateConfigurationFactory) { |
| this.matcher = matcher; |
| this.templateConfiguration = null; |
| this.templateConfigurationFactory = templateConfigurationFactory; |
| } |
| |
| public ConditionalTemplateConfigurationFactory( |
| TemplateSourceMatcher matcher, TemplateConfiguration templateConfiguration) { |
| this.matcher = matcher; |
| this.templateConfiguration = templateConfiguration; |
| this.templateConfigurationFactory = null; |
| } |
| |
| @Override |
| public TemplateConfiguration get(String sourceName, Object templateSource) |
| throws IOException, TemplateConfigurationFactoryException { |
| if (matcher.matches(sourceName, templateSource)) { |
| if (templateConfigurationFactory != null) { |
| return templateConfigurationFactory.get(sourceName, templateSource); |
| } else { |
| return templateConfiguration; |
| } |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| protected void setConfigurationOfChildren(Configuration cfg) { |
| if (templateConfiguration != null) { |
| templateConfiguration.setParentConfiguration(cfg); |
| } |
| if (templateConfigurationFactory != null) { |
| templateConfigurationFactory.setConfiguration(cfg); |
| } |
| } |
| |
| } |