io.github.theangrydev.businessflows.HappyCaseHappyPath Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of business-flows Show documentation

A combination of the Try monad and the Either monad, to help tame complex business flows.

There is a newer version: 10.3.0

/*
 * Copyright 2016 Liam Williams .
 *
 * This file is part of business-flows.
 *
 * 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 io.github.theangrydev.businessflows;

import java.util.List;
import java.util.Optional;

/**
 * A {@link HappyCaseHappyPath} is a {@link HappyPath} that is actually a {@link HappyCase}.
 */
class HappyCaseHappyPath extends HappyCase implements HappyPath {

    HappyCaseHappyPath(Happy happy) {
        super(happy);
    }

    @Override
    public Optional toOptional() {
        return Optional.of(happy);
    }

    @Override
    public TechnicalFailure ifTechnicalFailure() {
        return TechnicalFailure.happyPath(happy);
    }

    @Override
    public SadPath ifSad() {
        return SadPath.happyPath(happy);
    }

    @Override
    public  HappyPath then(Mapping> action) {
        try {
            return action.map(happy).ifHappy();
        } catch (Exception e) {
            return HappyPath.technicalFailure(e);
        }
    }

    @Override
    public  HappyPath map(Mapping mapping) {
        try {
            return HappyPath.happyPath(mapping.map(happy));
        } catch (Exception e) {
            return HappyPath.technicalFailure(e);
        }
    }

    @Override
    public HappyPath peek(Peek peek) {
        try {
            peek.peek(happy);
            return this;
        } catch (Exception e) {
            return HappyPath.technicalFailure(e);
        }
    }

    @Override
    public HappyPath attempt(ActionThatMightFail actionThatMightFail) {
        try {
            return actionThatMightFail.attempt(happy).toHappyPath(happy);
        } catch (Exception e) {
            return HappyPath.technicalFailure(e);
        }
    }

    @Override
    public HappyPath attemptAll(List> actionsThatMightFail) {
        HappyPath result = this;
        for (ActionThatMightFail actionThatMightFail : actionsThatMightFail) {
            result = result.attempt(actionThatMightFail);
        }
        return result;
    }
}