functionalj.result.ResultPeekAddOn Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of functionalj-core Show documentation
The module for FunctionalJ Core.
There is a newer version: 1.0.17
// ============================================================================
// Copyright (c) 2017-2021 Nawapunth Manusitthipol (NawaMan - http://nawaman.net).
// ----------------------------------------------------------------------------
// MIT License
//
// 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 functionalj.result;

import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;

import lombok.val;


public interface ResultPeekAddOn {
    
    public Result peek(Consumer consumer);
    
    public default  Result peek(Class clzz, Consumer theConsumer) {
        return peek(value -> {
            if (!clzz.isInstance(value))
                return;
            
            val target = clzz.cast(value);
            theConsumer.accept(target);
        });
    }
    public default Result peek(Predicate selector, Consumer theConsumer) {
        return peek(value -> {
            if (!selector.test(value))
                return;
            
            theConsumer.accept(value);
        });
    }
    public default  Result peek(Function mapper, Consumer theConsumer) {
        return peek(value -> {
            val target = mapper.apply(value);
            theConsumer.accept(target);
        });
    }
    
    public default  Result peek(Function mapper, Predicate selector, Consumer theConsumer) {
        return peek(value -> {
            val target = mapper.apply(value);
            if (selector.test(target))
                theConsumer.accept(target);
        });
    }
    
}