/*
* 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.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.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SlingServlet(methods="POST", resourceTypes=SlingshotConstants.RESOURCETYPE_COMMENTS)
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, SlingshotConstants.RESOURCETYPE_COMMENT);
properties.put(SlingshotConstants.PROPERTY_TITLE, title);
properties.put(SlingshotConstants.PROPERTY_DESCRIPTION, description);
properties.put(SlingshotConstants.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");
}
}