/hudson-core/src/main/java/hudson/search/UnionSearchIndex.java

http://github.com/hudson/hudson · Java · 65 lines · 29 code · 6 blank · 30 comment · 7 complexity · b49680633942c218934e018e903dc42f MD5 · raw file

  1. /*
  2. * The MIT License
  3. *
  4. * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi
  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.search;
  25. import java.util.List;
  26. /**
  27. * Union of two sets.
  28. *
  29. * @author Kohsuke Kawaguchi
  30. */
  31. public class UnionSearchIndex implements SearchIndex {
  32. public static SearchIndex combine(SearchIndex... sets) {
  33. SearchIndex p=EMPTY;
  34. for (SearchIndex q : sets) {
  35. // allow some of the inputs to be null,
  36. // and also recognize EMPTY
  37. if (q != null && q != EMPTY) {
  38. if (p == EMPTY)
  39. p = q;
  40. else
  41. p = new UnionSearchIndex(p,q);
  42. }
  43. }
  44. return p;
  45. }
  46. private final SearchIndex lhs,rhs;
  47. public UnionSearchIndex(SearchIndex lhs, SearchIndex rhs) {
  48. this.lhs = lhs;
  49. this.rhs = rhs;
  50. }
  51. public void find(String token, List<SearchItem> result) {
  52. lhs.find(token,result);
  53. rhs.find(token,result);
  54. }
  55. public void suggest(String token, List<SearchItem> result) {
  56. lhs.suggest(token,result);
  57. rhs.suggest(token,result);
  58. }
  59. }