content: /*
   *  Copyright (C) 2014 Stichting Akvo (Akvo Foundation)
   *
   *  This file is part of Akvo FLOW.
   *
   *  Akvo FLOW is free software: you can redistribute it and modify it under the terms of
   *  the GNU Affero General Public License (AGPL) as published by the Free Software Foundation,
   *  either version 3 of the License or any later version.
   *
   *  Akvo FLOW is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   *  See the GNU Affero General Public License included below for more details.
   *
   *  The full license text can also be seen at <http://www.gnu.org/licenses/agpl.html>.
   */
  
  package org.akvo.gae.remoteapi;
  
  import java.io.File;
  import java.util.List;
  
  import com.google.appengine.api.datastore.DatastoreService;
  import com.google.appengine.api.datastore.DatastoreServiceFactory;
  import com.google.appengine.api.datastore.Entity;
  import com.google.appengine.api.datastore.PreparedQuery;
  import com.google.appengine.api.datastore.Query;
  import com.google.appengine.repackaged.org.apache.commons.io.FileUtils;
  import com.google.appengine.tools.remoteapi.RemoteApiInstaller;
  import com.google.appengine.tools.remoteapi.RemoteApiOptions;
  
  public class UserList {
  
      public static void main(String[] args) throws Exception {
  
          if (args.length != 1) {
              throw new IllegalArgumentException("Missing params");
          }
  
          StringBuilder configFolder = new StringBuilder(args[0].trim());
          if (!configFolder.toString().endsWith("/")) {
              configFolder.append("/");
          }
  
          final List<String> instances = FileUtils
                  .readLines(new File("/tmp/instances.txt"));
          final File f = new File("/tmp/device-list.csv");
  
          FileUtils.write(f, "Instance,Device,Version\n");
  
          for (String i : instances) {
              final String serviceAccount = "sa-" + i + "@" + i + ".iam.gserviceaccount.com";
              final String serviceAccountKey = configFolder + i + "/" + i + ".p12";
              final RemoteApiOptions options = new RemoteApiOptions().server(i + ".appspot.com", 443)
                      .useServiceAccountCredential(serviceAccount, serviceAccountKey);
              final RemoteApiInstaller installer = new RemoteApiInstaller();
              final StringBuffer sb = new StringBuffer();
              installer.install(options);
              try {
                  System.out.println("Processing: " + i);
                  DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
                  Query q = new Query("User");
                  PreparedQuery pq = ds.prepare(q);
                  int j = 1;
                  for (Entity e : pq.asIterable()) {
  
                      if (j % 100 == 0) {
                          System.out.println(".");
                      } else {
                          System.out.print(".");
                      }
  
                      sb.append(
                              String.format("%s,%s,%s", i, e.getProperty("emailAddress"),
                                      getRole((String) e.getProperty("permissionList"))))
                                      .append("\n");
                      j++;
                  }
                  FileUtils.write(f, sb.toString(), true);
              } finally {
                  installer.uninstall();
              }
              System.out.println("\n");
          }
  
      }
  
      private static String getRole(String value) {
          if ("0".equals(value)) {
              return "SUPER_ADMIN";
          }
          if ("10".equals(value)) {
              return "ADMIN";
          }
          if ("20".equals(value)) {
              return "USER";
          }
          return value;
      }
  }
  