de.codecentric.spring.boot.chaos.monkey.assaults.ExceptionAssault Maven / Gradle / Ivy

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/*
 * Copyright 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 de.codecentric.spring.boot.chaos.monkey.assaults;

import de.codecentric.spring.boot.chaos.monkey.component.MetricEventPublisher;
import de.codecentric.spring.boot.chaos.monkey.component.MetricType;
import de.codecentric.spring.boot.chaos.monkey.configuration.AssaultException;
import de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeySettings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/** @author Thorsten Deelmann */
public class ExceptionAssault implements ChaosMonkeyRequestAssault {

  private static final Logger Logger = LoggerFactory.getLogger(ExceptionAssault.class);

  private final ChaosMonkeySettings settings;

  private MetricEventPublisher metricEventPublisher;

  public ExceptionAssault(ChaosMonkeySettings settings, MetricEventPublisher metricEventPublisher) {
    this.settings = settings;
    this.metricEventPublisher = metricEventPublisher;
  }

  @Override
  public boolean isActive() {
    return settings.getAssaultProperties().isExceptionsActive();
  }

  @Override
  public void attack() {
    Logger.info("Chaos Monkey - exception");

    AssaultException assaultException = this.settings.getAssaultProperties().getException();

    // metrics
    if (metricEventPublisher != null) {
      metricEventPublisher.publishMetricEvent(MetricType.EXCEPTION_ASSAULT);
    }

    assaultException.throwExceptionInstance();
  }
}