/**
* {@inheritDoc} This post processor is only interested in posts to messages, so it should iterate
* rapidly through all messages.
*
* @see
* org.apache.sling.servlets.post.SlingPostProcessor#process(org.apache.sling.api.SlingHttpServletRequest,
* java.util.List)
*/
public void process(SlingHttpServletRequest request, List<Modification> changes)
throws Exception {
Resource resource = request.getResource();
ResourceResolver resourceResolver = request.getResourceResolver();
if (SparseContentResource.SPARSE_CONTENT_RT.equals(resource.getResourceSuperType())) {
Session session = resource.adaptTo(Session.class);
ContentManager contentManager = session.getContentManager();
Map<Content, String> messageMap = new HashMap<Content, String>();
for (Modification m : changes) {
try {
switch (m.getType()) {
case CREATE:
case MODIFY:
String path = m.getSource();
if (path.lastIndexOf("@") > 0) {
path = path.substring(0, path.lastIndexOf("@"));
}
if (path.endsWith("/" + MessageConstants.PROP_SAKAI_MESSAGEBOX)) {
path =
path.substring(
0, path.length() - MessageConstants.PROP_SAKAI_MESSAGEBOX.length() - 1);
}
// The Modification Source is the Resource path, and so we
// need to translate that into a Content path.
// TODO This is not a cheap operation. We might be better off
// if we start including the Content path in our Modification objects.
Resource modifiedResource = resourceResolver.getResource(path);
if (modifiedResource == null) {
return;
}
Content content = modifiedResource.adaptTo(Content.class);
String contentPath = content.getPath();
if (contentManager.exists(contentPath)) {
content = contentManager.get(contentPath);
if (content.hasProperty(SLING_RESOURCE_TYPE_PROPERTY)
&& content.hasProperty(PROP_SAKAI_MESSAGEBOX)) {
if (SAKAI_MESSAGE_RT.equals(content.getProperty(SLING_RESOURCE_TYPE_PROPERTY))
&& BOX_OUTBOX.equals(content.getProperty(PROP_SAKAI_MESSAGEBOX))) {
String sendstate;
if (content.hasProperty(PROP_SAKAI_SENDSTATE)) {
sendstate = (String) content.getProperty(PROP_SAKAI_SENDSTATE);
} else {
sendstate = STATE_NONE;
}
messageMap.put(content, sendstate);
}
}
}
break;
}
} catch (StorageClientException ex) {
LOGGER.warn("Failed to process on create for {} ", m.getSource(), ex);
} catch (AccessDeniedException ex) {
LOGGER.warn("Failed to process on create for {} ", m.getSource(), ex);
}
}
List<String> handledNodes = new ArrayList<String>();
// Check if we have any nodes that have a pending state and launch an OSGi
// event
for (Entry<Content, String> mm : messageMap.entrySet()) {
Content content = mm.getKey();
String path = content.getPath();
String state = mm.getValue();
if (!handledNodes.contains(path)) {
if (STATE_NONE.equals(state) || STATE_PENDING.equals(state)) {
content.setProperty(PROP_SAKAI_SENDSTATE, STATE_NOTIFIED);
contentManager.update(content);
Dictionary<String, Object> messageDict = new Hashtable<String, Object>();
// WARNING
// We can't pass in the node, because the session might expire before the event gets
// handled
// This does mean that the listener will have to get the node each time, and probably
// create a new session for each message
// This might be heavy on performance.
messageDict.put(EVENT_LOCATION, path);
messageDict.put(UserConstants.EVENT_PROP_USERID, request.getRemoteUser());
LOGGER.debug("Launched event for message: {} ", path);
Event pendingMessageEvent = new Event(PENDINGMESSAGE_EVENT, messageDict);
// KERN-790: Initiate a synchronous event.
try {
eventAdmin.postEvent(pendingMessageEvent);
handledNodes.add(path);
} catch (Exception e) {
LOGGER.warn("Failed to post message dispatch event, cause {} ", e.getMessage(), e);
}
}
}
}
}
}
