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**vngx-jsch** (beta) is an updated version of the popular JSch SSH library
written in pure Java. It has been updated to Java 6 with all the latest
language features and improved code clarity.
/*
* Copyright (c) 2010-2011 Michael Laudati, N1 Concepts LLC.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL N1
* CONCEPTS LLC OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.vngx.jsch.config;
/**
* Implementation of {@code PropertyValidator} which validates a property value
* by checking if it's a {@code boolean}.
*
* @author Michael Laudati
*/
public class BooleanPropertyValidator extends PropertyValidator {
/** Boolean property validator with default value of true. */
public final static BooleanPropertyValidator DEFAULT_TRUE_VALIDATOR = new BooleanPropertyValidator(true);
/** Boolean property validator with default value of false. */
public final static BooleanPropertyValidator DEFAULT_FALSE_VALIDATOR = new BooleanPropertyValidator(false);
/**
* Creates a new instance of {@code BooleanPropertyValidator} with the
* default boolean value.
*
* @param defaultValue of boolean property
*/
protected BooleanPropertyValidator(boolean defaultValue) {
super(String.valueOf(defaultValue));
}
/**
* Returns {@code true} if the specified property {@code value} can be
* parsed by {@link Boolean#valueOf(java.lang.String).
*
* @param value to validate
* @return {@code true} if property value is a boolean
*/
@Override
protected boolean isPropertyValid(String value) {
try {
Boolean.valueOf(value);
return true;
} catch(Exception e) {
return false;
}
}
}