Thomas Vachuska | 1eff3a6 | 2016-05-03 01:07:24 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onlab.warden; |
| 18 | |
| 19 | import com.google.common.io.ByteStreams; |
| 20 | import org.eclipse.jetty.server.Response; |
| 21 | |
| 22 | import javax.servlet.ServletException; |
| 23 | import javax.servlet.http.HttpServlet; |
| 24 | import javax.servlet.http.HttpServletRequest; |
| 25 | import javax.servlet.http.HttpServletResponse; |
| 26 | import java.io.IOException; |
| 27 | import java.io.PrintWriter; |
| 28 | import java.text.SimpleDateFormat; |
| 29 | import java.util.Date; |
| 30 | |
| 31 | import static com.google.common.base.Strings.isNullOrEmpty; |
| 32 | |
| 33 | /** |
| 34 | * Web socket servlet capable of creating web sockets for the STC monitor. |
| 35 | */ |
| 36 | public class WardenServlet extends HttpServlet { |
| 37 | |
| 38 | static Warden warden; |
| 39 | |
| 40 | @Override |
| 41 | protected void doGet(HttpServletRequest req, HttpServletResponse resp) |
| 42 | throws ServletException, IOException { |
| 43 | resp.setContentType("text/plain; charset=UTF-8"); |
| 44 | SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); |
| 45 | |
| 46 | try (PrintWriter out = resp.getWriter()) { |
| 47 | for (String cellName : warden.getCells()) { |
| 48 | Reservation reservation = warden.currentCellReservation(cellName); |
| 49 | if (reservation != null) { |
| 50 | long expiration = reservation.time + reservation.duration * 60_000; |
| 51 | out.println(String.format("%-10s\t%-10s\t%s\t%s\t%s minutes", cellName, |
| 52 | reservation.userName, |
| 53 | fmt.format(new Date(reservation.time)), |
| 54 | fmt.format(new Date(expiration)), |
| 55 | reservation.duration)); |
| 56 | } else { |
| 57 | out.println(String.format("%-10s\t%-10s", cellName, "available")); |
| 58 | } |
| 59 | } |
| 60 | } catch (Exception e) { |
| 61 | resp.setStatus(Response.SC_INTERNAL_SERVER_ERROR); |
| 62 | e.printStackTrace(); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | @Override |
| 67 | protected void doPost(HttpServletRequest req, HttpServletResponse resp) |
| 68 | throws ServletException, IOException { |
| 69 | try (PrintWriter out = resp.getWriter()) { |
| 70 | String sshKey = new String(ByteStreams.toByteArray(req.getInputStream()), "UTF-8"); |
| 71 | String userName = req.getParameter("user"); |
| 72 | String sd = req.getParameter("duration"); |
Thomas Vachuska | 0d33700 | 2016-05-04 10:00:18 -0700 | [diff] [blame] | 73 | int duration = isNullOrEmpty(sd) ? 0 : Integer.parseInt(sd); |
Thomas Vachuska | 1eff3a6 | 2016-05-03 01:07:24 -0700 | [diff] [blame] | 74 | String cellDefinition = warden.borrowCell(userName, sshKey, duration); |
| 75 | out.println(cellDefinition); |
| 76 | } catch (Exception e) { |
| 77 | resp.setStatus(Response.SC_INTERNAL_SERVER_ERROR); |
| 78 | e.printStackTrace(); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | protected void doDelete(HttpServletRequest req, HttpServletResponse resp) |
| 84 | throws ServletException, IOException { |
| 85 | try (PrintWriter out = resp.getWriter()) { |
| 86 | String userName = req.getParameter("user"); |
| 87 | warden.returnCell(userName); |
| 88 | } catch (Exception e) { |
| 89 | resp.setStatus(Response.SC_INTERNAL_SERVER_ERROR); |
| 90 | e.printStackTrace(); |
| 91 | } |
| 92 | } |
| 93 | } |