protected void activate(ComponentContext context) {
BundleContext bundleContext = context.getBundleContext();
tracker =
new ExternalRepositoryProcessorTracker(
bundleContext, ExternalRepositoryProcessor.class.getName(), null);
tracker.open();
}
/**
* {@inheritDoc}
*
* @see
* org.apache.sling.api.servlets.SlingSafeMethodsServlet#doGet(org.apache.sling.api.SlingHttpServletRequest,
* org.apache.sling.api.SlingHttpServletResponse)
*/
@Override
protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)
throws ServletException, IOException {
try {
// Grab the search node.
Node node = request.getResource().adaptTo(Node.class);
// Grab the node that holds the repository information.
Node proxyNode = DocProxyUtils.getProxyNode(node);
// Grab the correct processor
String type = proxyNode.getProperty(REPOSITORY_PROCESSOR).getString();
ExternalRepositoryProcessor processor = tracker.getProcessorByType(type);
if (processor == null) {
LOGGER.warn("No processor found for type - {}", type);
response.sendError(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Could not handle this repository type.");
return;
}
// Handle properties.
Map<String, Object> searchProperties = new HashMap<String, Object>();
handleProperties(searchProperties, node, request);
// Process search
Iterator<ExternalDocumentResult> results = processor.search(proxyNode, searchProperties);
// Do the default search paging.
long toSkip = SearchUtil.getPaging(request, -1);
while (toSkip > 0) {
if (results.hasNext()) {
results.next();
toSkip--;
} else {
throw new NoSuchElementException();
}
}
response.setContentType("application/json");
response.setCharacterEncoding("UTF-8");
ExtendedJSONWriter write = new ExtendedJSONWriter(response.getWriter());
write.array();
long nitems =
SearchUtil.longRequestParameter(
request, SearchConstants.PARAMS_ITEMS_PER_PAGE, SearchConstants.DEFAULT_PAGED_ITEMS);
for (long i = 0; i < nitems && results.hasNext(); i++) {
ExternalDocumentResult result = results.next();
DocProxyUtils.writeMetaData(write, result);
}
write.endArray();
} catch (RepositoryException e) {
LOGGER.error("Got a repository exception when trying to grab search node information.", e);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Failed to perform search.");
} catch (JSONException e) {
LOGGER.error("Got a JSON exception when trying to grab search node information.", e);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Failed to perform search.");
} catch (DocProxyException e) {
LOGGER.error("Got a DocProxy exception when trying to grab search node information.", e);
response.sendError(e.getCode(), e.getMessage());
}
}
protected void deactivate(ComponentContext context) {
if (tracker != null) {
tracker.close();
tracker = null;
}
}
