| /* |
| * 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 org.apache.sling.scripting.freemarker.internal; |
| |
| import java.util.List; |
| |
| import freemarker.template.TemplateMethodModelEx; |
| import freemarker.template.TemplateModel; |
| import freemarker.template.TemplateModelException; |
| import freemarker.template.utility.DeepUnwrap; |
| import org.apache.sling.api.adapter.AdapterManager; |
| import org.apache.sling.commons.classloader.DynamicClassLoaderManager; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Reference; |
| |
| @Component( |
| service = { |
| TemplateModel.class |
| }, |
| property = { |
| "name=adaptTo" |
| } |
| ) |
| public class AdaptToMethod implements TemplateMethodModelEx { |
| |
| @Reference |
| private AdapterManager adapterManager; |
| |
| @Reference |
| private DynamicClassLoaderManager dynamicClassLoaderManager; |
| |
| public AdaptToMethod() { |
| } |
| |
| @Override |
| public Object exec(final List arguments) throws TemplateModelException { |
| if (arguments.size() != 2) { |
| throw new TemplateModelException("wrong number of arguments, expecting 2 (adaptable and adapter type)."); |
| } |
| try { |
| final String classname = arguments.get(1).toString(); |
| final Class<?> clazz = dynamicClassLoaderManager.getDynamicClassLoader().loadClass(classname); |
| final TemplateModel templateModel = (TemplateModel) arguments.get(0); |
| final Object adaptable = DeepUnwrap.unwrap(templateModel); |
| return adapterManager.getAdapter(adaptable, clazz); |
| } catch (Exception e) { |
| throw new TemplateModelException(e); |
| } |
| } |
| |
| } |