com.creactiviti.piper.core.taskhandler.random.Rogue.java Source code

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Here is the source code for com.creactiviti.piper.core.taskhandler.random.Rogue.java

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/*
 * Copyright 2016-2018 the original author or authors.
 *
 * 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 com.creactiviti.piper.core.taskhandler.random;

import org.apache.commons.lang3.RandomUtils;
import org.springframework.stereotype.Component;
import org.springframework.util.Assert;

import com.creactiviti.piper.core.task.Task;
import com.creactiviti.piper.core.task.TaskHandler;

/**
 * a {@link TaskHandler} implementaion which can
 * throw an exception based on a probabilty
 * value.
 * 
 * @author Arik Cohen
 * @since Mar 30, 2017
 */
@Component
public class Rogue implements TaskHandler<Object> {

    @Override
    public Object handle(Task aTask) throws Exception {
        float nextFloat = RandomUtils.nextFloat(0, 1);
        float probabilty = aTask.getFloat("probabilty", 0.5f);
        Assert.isTrue(probabilty >= 0 && probabilty <= 1, "probability must be a value between 0 and 1");
        if (nextFloat <= probabilty) {
            throw new IllegalStateException("I'm a rogue exception");
        }
        return null;
    }

}