| /* |
| * 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.mailarchive.stats.impl; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.Set; |
| import java.util.SortedSet; |
| import java.util.TreeSet; |
| |
| import javax.servlet.ServletException; |
| |
| import org.apache.felix.scr.annotations.sling.SlingServlet; |
| import org.apache.felix.utils.json.JSONWriter; |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.SlingHttpServletResponse; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ValueMap; |
| import org.apache.sling.api.servlets.SlingSafeMethodsServlet; |
| |
| @SuppressWarnings("serial") |
| @SlingServlet( |
| resourceTypes = "mailserver/stats/destination", |
| methods = "GET", |
| extensions="json", |
| selectors="statsdata") |
| /** Generates json data for the destination.esp script. |
| * |
| * Produces output like |
| * <pre> |
| * |
| * var statsData = [ |
| * { "period": "2012/01", |
| * "senders" : { |
| * "netenviron.com" : 1, |
| * "builds.apache.org" : 12 |
| * }}, |
| * { "period": "2013/09", |
| * "senders" : { |
| * "yahoo.com" : 32, |
| * "netenviron.com" : 6, |
| * "builds.apache.org" : 9 |
| * }} |
| * ]; |
| * var layers = [ |
| * "yahoo.com", |
| * "netenviron.com", |
| * "builds.apache.org" |
| * ]; |
| * |
| * </pre> |
| * |
| */ |
| public class StatsDataServlet extends SlingSafeMethodsServlet { |
| |
| @Override |
| protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) |
| throws ServletException, IOException { |
| |
| response.setCharacterEncoding("UTF-8"); |
| final PrintWriter out = response.getWriter(); |
| |
| try { |
| out.write("// data provided by " + getClass().getName() + "\n"); |
| final SortedSet<String> layers = new TreeSet<String>(); |
| |
| // Visit our child resources and build the statsData object |
| // from those that have the stats data resource type |
| { |
| final JSONWriter w = new JSONWriter(response.getWriter()); |
| out.write("var statsData = "); |
| w.array(); |
| dumpStatsData(request.getResource(), w, layers); |
| w.endArray(); |
| out.flush(); |
| out.write(";\n"); |
| } |
| |
| // Output the layers array in JSON |
| { |
| final JSONWriter w = new JSONWriter(response.getWriter()); |
| out.write("var layers = "); |
| w.array(); |
| for(String layer : layers) { |
| w.value(layer); |
| }; |
| w.endArray(); |
| out.write(";"); |
| } |
| |
| } catch(IOException je) { |
| throw new ServletException("JSONException in doGet", je); |
| } |
| } |
| |
| /** Dump stats data to w if r is a stats data resource, |
| * and recurse into children |
| */ |
| private void dumpStatsData(Resource r, JSONWriter w, Set<String> layers) throws IOException { |
| if(MailStatsProcessorImpl.DATA_RESOURCE_TYPE.equals(r.getResourceType())) { |
| final ValueMap m = r.adaptTo(ValueMap.class); |
| if(m != null) { |
| w.object(); |
| w.key("period").value(m.get(MailStatsProcessorImpl.PERIOD_PROP, "NO_PERIOD")); |
| w.key("senders"); |
| w.object(); |
| for(String key : m.keySet()) { |
| if(key.startsWith(MailStatsProcessorImpl.SOURCE_PROP_PREFIX)) { |
| final String source = key.substring(MailStatsProcessorImpl.SOURCE_PROP_PREFIX.length()); |
| layers.add(source); |
| w.key(source).value(m.get(key)); |
| } |
| } |
| w.endObject(); |
| w.endObject(); |
| } |
| } |
| |
| for(Resource child : r.getChildren()) { |
| dumpStatsData(child, w, layers); |
| } |
| } |
| } |