/hudson-core/src/main/java/hudson/model/OneOffExecutor.java

http://github.com/hudson/hudson · Java · 72 lines · 32 code · 8 blank · 32 comment · 1 complexity · 76119cf5780e1fc78a8c202e2470108d MD5 · raw file

  1. /*
  2. * The MIT License
  3. *
  4. * Copyright (c) 2004-2009, Sun Microsystems, Inc.
  5. *
  6. * Permission is hereby granted, free of charge, to any person obtaining a copy
  7. * of this software and associated documentation files (the "Software"), to deal
  8. * in the Software without restriction, including without limitation the rights
  9. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10. * copies of the Software, and to permit persons to whom the Software is
  11. * furnished to do so, subject to the following conditions:
  12. *
  13. * The above copyright notice and this permission notice shall be included in
  14. * all copies or substantial portions of the Software.
  15. *
  16. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22. * THE SOFTWARE.
  23. */
  24. package hudson.model;
  25. import hudson.model.Queue.FlyweightTask;
  26. import hudson.model.queue.WorkUnit;
  27. /**
  28. * {@link Executor} that's temporarily added to carry out tasks that doesn't consume
  29. * regular executors, like a matrix project parent build.
  30. *
  31. * @author Kohsuke Kawaguchi
  32. * @see FlyweightTask
  33. */
  34. public class OneOffExecutor extends Executor {
  35. private WorkUnit work;
  36. public OneOffExecutor(Computer owner, WorkUnit work) {
  37. super(owner,-1);
  38. this.work = work;
  39. }
  40. public WorkUnit getWorkUnit() {
  41. return work;
  42. }
  43. @Override
  44. protected boolean shouldRun() {
  45. // TODO: consulting super.shouldRun() here means we'll lose the work if it gets scheduled
  46. // when super.shouldRun() returns false.
  47. return super.shouldRun() && work !=null;
  48. }
  49. @Override
  50. protected WorkUnit grabJob() throws InterruptedException {
  51. WorkUnit r = super.grabJob();
  52. assert r==work;
  53. work = null;
  54. return r;
  55. }
  56. @Override
  57. public void run() {
  58. try {
  59. super.run();
  60. } finally {
  61. owner.remove(this);
  62. }
  63. }
  64. }