Copyright (C) 2011 the original author or authors.
See the notice.md file distributed with this work for additional
information regarding copyright ownership.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
/**
 * Copyright (C) 2011 the original author or authors.
 * See the notice.md file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.beust.jcommander.validators;

import com.beust.jcommander.IParameterValidator;
import com.beust.jcommander.ParameterException;

A validator that makes sure the value of the parameter is a positive integer.
Author:
Cedric Beust <cedric@beust.com>/**
 * A validator that makes sure the value of the parameter is a positive integer.
 *
 * @author Cedric Beust &lt;cedric@beust.com&gt;
 */
public class PositiveInteger implements IParameterValidator {

  public void validate(String name, String value)
      throws ParameterException {
    int n = Integer.parseInt(value);
    if (n < 0) {
      throw new ParameterException("Parameter " + name
          + " should be positive (found " + value +")");
    }
  }

}