| /* |
| * 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.jackrabbit.servlet; |
| |
| import javax.jcr.Repository; |
| import javax.jcr.RepositoryException; |
| import javax.servlet.ServletContext; |
| |
| /** |
| * Servlet that makes a repository from one servlet context attribute |
| * available as another servlet context attribute. The source context |
| * can be different from the context of this servlet. |
| * <p> |
| * The supported initialization parameters of this servlet are: |
| * <dl> |
| * <dt>javax.jcr.Repository</dt> |
| * <dd> |
| * Name of the target servlet context attribute. |
| * The default value is "<code>javax.jcr.Repository</code>". |
| * </dd> |
| * <dt>path</dt> |
| * <dd> |
| * Context path of the source servlet context. The source context |
| * defaults to the context of this servlet if this parameter is not set. |
| * </dd> |
| * <dt>name</dt> |
| * <dd> |
| * Name of the source servlet context attribute. The default value |
| * is "<code>javax.jcr.Repository</code>". The name of the source attribute |
| * can be the same as the name of target attribute only if the source |
| * context is different from the context of this servlet. |
| * </dd> |
| * </dl> |
| * <p> |
| * This servlet can also be mapped to the URL space. See |
| * {@link AbstractRepositoryServlet} for the details. |
| * |
| * @since 1.4 |
| */ |
| public class ContextRepositoryServlet extends AbstractRepositoryServlet { |
| |
| /** |
| * Serial version UID. |
| */ |
| private static final long serialVersionUID = 6222606878557491477L; |
| |
| /** |
| * Creates and returns the repository in the configured servlet |
| * context attribute. |
| * |
| * @return repository |
| */ |
| protected Repository getRepository() throws RepositoryException { |
| String path = getInitParameter("path"); |
| String name = getInitParameter("name", Repository.class.getName()); |
| |
| ServletContext context = getServletContext(); |
| if (path != null && context.equals(context.getContext(path))) { |
| path = null; |
| } |
| |
| if (path == null && name.equals(getAttributeName())) { |
| throw new RepositoryException( |
| "Invalid configuration: Can not duplicate attribute " |
| + name + " of servlet " + getServletName()); |
| } |
| |
| ServletContext otherContext = context.getContext(path); |
| if (otherContext == null) { |
| throw new RepositoryException( |
| "Repository not found: Servlet context " + path |
| + " does not exist or is not accessible from context " |
| + context.getServletContextName()); |
| } |
| |
| Object repository = otherContext.getAttribute(name); |
| if (repository instanceof Repository) { |
| return (Repository) repository; |
| } else if (repository != null) { |
| throw new RepositoryException( |
| "Invalid repository: Attribute " + name |
| + " in servlet context " + otherContext.getServletContextName() |
| + " is an instance of " + repository.getClass().getName()); |
| } else { |
| throw new RepositoryException( |
| "Repository not found: Attribute " + name |
| + " does not exist in servlet context " |
| + otherContext.getServletContextName()); |
| } |
| } |
| |
| } |