123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990 |
- /*
- * Copyright (c) 2006-2011 Chris Smith, Shane Mc Cormack, Gregory Holmes
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.util.validators;
-
- /**
- * Validates that a number is within certain bounds.
- *
- * @author chris
- */
- public class NumericalValidator implements Validator<String> {
-
- /** The minimum value for this number. */
- protected final int min;
-
- /** The maximum value for this number. */
- protected final int max;
-
- /**
- * Creates a new numerical validator with the specified bounds.
- *
- * @param min The minimum value for the number, or -1 for unlimited.
- * @param max The maximum value for the number, or -1 for unlimited.
- */
- public NumericalValidator(final int min, final int max) {
- this.max = max == -1 ? Integer.MAX_VALUE : max;
- this.min = min == -1 ? Integer.MIN_VALUE : min;
- if (this.min > this.max) {
- throw new IllegalArgumentException("min must be less than max.");
- }
- }
-
- /**
- * Retrieves the maximum value that this validator will allow.
- *
- * @return This validator's maximum value
- */
- public int getMax() {
- return max;
- }
-
- /**
- * Retrieves the minimum value that this validator will allow.
- *
- * @return This validator's minimum value
- */
- public int getMin() {
- return min;
- }
-
- /** {@inheritDoc} */
- @Override
- public ValidationResponse validate(final String object) {
- int intv;
-
- try {
- intv = Integer.parseInt(object);
- } catch (NumberFormatException ex) {
- return new ValidationResponse("Must be a valid number");
- }
-
- if (intv < min) {
- return new ValidationResponse("Must be at least " + min);
- } else if (intv > max) {
- return new ValidationResponse("Must be at most " + max);
- } else {
- return new ValidationResponse();
- }
- }
-
- }
|