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Part of the Alchemy Collection. Easy, Simple, and Robust argument checking logic for your Services, Libraries, and Scripts.

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/*
 * Copyright 2015 Aroma Tech.
 *
 * 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 tech.sirwellington.alchemy.arguments.assertions;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import tech.sirwellington.alchemy.annotations.access.NonInstantiable;
import tech.sirwellington.alchemy.arguments.AlchemyAssertion;
import tech.sirwellington.alchemy.arguments.FailedAssertionException;

import static tech.sirwellington.alchemy.arguments.assertions.Assertions.notNull;

/**
 *
 * @author SirWellington
 */
@NonInstantiable
public final class BooleanAssertions 
{
    private final static Logger LOG = LoggerFactory.getLogger(BooleanAssertions.class);

    private BooleanAssertions() throws IllegalAccessException
    {
        throw new IllegalAccessException("cannot instantiate");
    }


    public static AlchemyAssertion trueStatement()
    {
        return b ->
        {
            notNull().check(b);
            
            if (!b)
            {
                throw new FailedAssertionException("Condition not met");
            }
        };
    }

    
    public static AlchemyAssertion falseStatement()
    {
        return b ->
        {
            notNull().check(b);
            
            trueStatement().check(!b);
        };
    }
    
}