/*
* Copyright 2015 Amazon Technologies, Inc.
*
* 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://aws.amazon.com/apache2.0
*
* This file 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.amazonaws.eclipse.elasticbeanstalk.server.ui.databinding;
import org.eclipse.core.databinding.validation.IValidator;
import org.eclipse.core.databinding.validation.ValidationStatus;
import org.eclipse.core.runtime.IStatus;
/**
* IValidator implementation that tests that a string for length constraints.
* Excludes the range specified.
*/
public class MinMaxLengthValidator implements IValidator {
private final String message = "%s must be %d to %d characters in length.";
private final int min;
private final int max;
private final String fieldName;
public MinMaxLengthValidator(String fieldName, int min, int max) {
this.min = min;
this.max = max;
this.fieldName = fieldName;
}
public IStatus validate(Object value) {
String s = (String)value;
if (s.length() < min || s.length() > max) {
return ValidationStatus.error(String.format(message, fieldName, min,
max));
}
return ValidationStatus.ok();
}
}