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ConditionRuleValidator.java 2.4KB

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  1. /*
  2. * Copyright (c) 2006-2015 DMDirc Developers
  3. *
  4. * Permission is hereby granted, free of charge, to any person obtaining a copy
  5. * of this software and associated documentation files (the "Software"), to deal
  6. * in the Software without restriction, including without limitation the rights
  7. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  8. * copies of the Software, and to permit persons to whom the Software is
  9. * furnished to do so, subject to the following conditions:
  10. *
  11. * The above copyright notice and this permission notice shall be included in
  12. * all copies or substantial portions of the Software.
  13. *
  14. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20. * SOFTWARE.
  21. */
  22. package com.dmdirc.actions.validators;
  23. import com.dmdirc.actions.ConditionTree;
  24. import com.dmdirc.util.validators.ValidationResponse;
  25. import com.dmdirc.util.validators.Validator;
  26. /**
  27. * Validates a condition tree.
  28. */
  29. public class ConditionRuleValidator implements Validator<String> {
  30. /** The number of arguments to the tree. */
  31. private int args;
  32. /**
  33. * Creates a new ConditionRuleValidator.
  34. *
  35. * @param args The number of arguments allowed in the ConditionTree (i.e., the number of
  36. * ActionConditions)
  37. */
  38. public ConditionRuleValidator(final int args) {
  39. this.args = args;
  40. }
  41. /**
  42. * Updates the number of arguments used to validate the condition tree.
  43. *
  44. * @param args New number of arguments
  45. */
  46. public void setArgs(final int args) {
  47. this.args = args;
  48. }
  49. @Override
  50. public ValidationResponse validate(final String object) {
  51. final ConditionTree tree = ConditionTree.parseString(object);
  52. if (tree == null) {
  53. return new ValidationResponse("Invalid rule.");
  54. } else if (tree.getMaximumArgument() >= args) {
  55. return new ValidationResponse("Condition "
  56. + tree.getMaximumArgument() + " does not exist");
  57. } else {
  58. return new ValidationResponse();
  59. }
  60. }
  61. }