| /* |
| * 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.servlets.post; |
| |
| import java.util.List; |
| |
| import org.apache.sling.api.SlingHttpServletRequest; |
| |
| /** |
| * The <code>SlingPostProcessor</code> interface defines a service API to be |
| * implemented by service providers extending the Sling default POST servlet. |
| * Service providers may register OSGi services of this type to be used by the |
| * Sling default POST servlet to handle specific operations. |
| * <p> |
| * During a request the <code>SlingPostOperation</code> service is called |
| * with a list of registered post processors. After the operation has performed |
| * its changes but before the changes are persisted, all post processors |
| * are called. |
| */ |
| public interface SlingPostProcessor { |
| |
| /** |
| * Process the current request. |
| * The post processor can inspect the list of changes and perform additional |
| * changes. If the processor performs a change it should make the change |
| * and add a {@link Modification} object to the changes list. |
| * @param request The current request. |
| * @param changes The list of changes for this request. |
| * @throws Exception If an error occurs. |
| */ |
| void process(SlingHttpServletRequest request, List<Modification> changes) |
| throws Exception; |
| } |