| /* |
| * 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.sample.slingshot.comments.impl; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.jcr.Node; |
| import javax.jcr.RepositoryException; |
| import javax.servlet.ServletException; |
| |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.sling.SlingServlet; |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.SlingHttpServletResponse; |
| import org.apache.sling.api.resource.LoginException; |
| import org.apache.sling.api.resource.PersistenceException; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ResourceResolver; |
| import org.apache.sling.api.resource.ResourceResolverFactory; |
| import org.apache.sling.api.resource.ResourceUtil; |
| import org.apache.sling.api.servlets.SlingAllMethodsServlet; |
| import org.apache.sling.sample.slingshot.SlingshotConstants; |
| import org.apache.sling.sample.slingshot.comments.CommentsUtil; |
| import org.apache.sling.sample.slingshot.impl.Util; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @SlingServlet(methods="POST", extensions="comments", resourceTypes=SlingshotConstants.RESOURCETYPE_ITEM) |
| public class CommentPostServlet extends SlingAllMethodsServlet { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final Logger logger = LoggerFactory.getLogger(this.getClass()); |
| |
| @Reference |
| private ResourceResolverFactory factory; |
| |
| @Override |
| protected void doPost(final SlingHttpServletRequest request, |
| final SlingHttpServletResponse response) |
| throws ServletException, IOException { |
| final String title = request.getParameter(SlingshotConstants.PROPERTY_TITLE); |
| final String description = request.getParameter(SlingshotConstants.PROPERTY_DESCRIPTION); |
| |
| final String userId = request.getRemoteUser(); |
| |
| logger.debug("New comment from {} : {} - {}", new Object[] {userId, title, description}); |
| // TODO - check values |
| |
| // save comment |
| ResourceResolver resolver = null; |
| try { |
| resolver = factory.getAdministrativeResourceResolver(null); |
| |
| final Resource reqResource = resolver.getResource(request.getResource().getPath()); |
| |
| final Map<String, Object> properties = new HashMap<String, Object>(); |
| properties.put(ResourceResolver.PROPERTY_RESOURCE_TYPE, CommentsUtil.RESOURCETYPE_COMMENT); |
| properties.put(SlingshotConstants.PROPERTY_TITLE, title); |
| properties.put(SlingshotConstants.PROPERTY_DESCRIPTION, description); |
| properties.put(CommentsUtil.PROPERTY_USER, userId); |
| |
| // we try it five times |
| PersistenceException exception = null; |
| Resource newResource = null; |
| for(int i=0; i<5; i++) { |
| try { |
| exception = null; |
| final String name = ResourceUtil.createUniqueChildName(reqResource, Util.filter(title)); |
| newResource = resolver.create(reqResource, name, properties); |
| |
| resolver.commit(); |
| break; |
| } catch ( final PersistenceException pe) { |
| resolver.revert(); |
| resolver.refresh(); |
| exception = pe; |
| } |
| } |
| if ( exception != null ) { |
| throw exception; |
| } |
| // order node at the top (if jcr based) |
| final Node newNode = newResource.adaptTo(Node.class); |
| if ( newNode != null ) { |
| try { |
| final Node parent = newNode.getParent(); |
| final Node firstNode = parent.getNodes().nextNode(); |
| if ( !firstNode.getName().equals(newNode.getName()) ) { |
| parent.orderBefore(newNode.getName(), firstNode.getName()); |
| newNode.getSession().save(); |
| } |
| } catch ( final RepositoryException re) { |
| logger.error("Unable to order comment to the top", re); |
| } |
| } |
| } catch ( final LoginException le ) { |
| throw new ServletException("Unable to login", le); |
| } finally { |
| if ( resolver != null ) { |
| resolver.close(); |
| } |
| } |
| |
| // send redirect at the end |
| final String path = request.getResource().getParent().getPath(); |
| |
| response.sendRedirect(request.getContextPath() + path + ".html"); |
| } |
| |
| } |