de.codecentric.spring.boot.chaos.monkey.endpoints.ChaosMonkeyRestEndpoint 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.endpoints;

import de.codecentric.spring.boot.chaos.monkey.component.ChaosMonkeyRuntimeScope;
import de.codecentric.spring.boot.chaos.monkey.component.ChaosMonkeyScheduler;
import de.codecentric.spring.boot.chaos.monkey.configuration.ChaosMonkeySettings;
import de.codecentric.spring.boot.chaos.monkey.configuration.WatcherProperties;
import org.springframework.boot.actuate.endpoint.web.annotation.RestControllerEndpoint;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

@RestControllerEndpoint(enableByDefault = false, id = "chaosmonkey")
public class ChaosMonkeyRestEndpoint {

  private final ChaosMonkeySettings chaosMonkeySettings;

  private final ChaosMonkeyRuntimeScope runtimeScope;

  private final ChaosMonkeyScheduler scheduler;

  public ChaosMonkeyRestEndpoint(
      ChaosMonkeySettings chaosMonkeySettings,
      ChaosMonkeyRuntimeScope runtimeScope,
      ChaosMonkeyScheduler scheduler) {
    this.chaosMonkeySettings = chaosMonkeySettings;
    this.runtimeScope = runtimeScope;
    this.scheduler = scheduler;
  }

  @PostMapping("/assaults")
  public ResponseEntity updateAssaultProperties(
      @RequestBody @Validated AssaultPropertiesUpdate assaultProperties) {
    assaultProperties.applyTo(chaosMonkeySettings.getAssaultProperties());
    scheduler.reloadConfig();
    return ResponseEntity.ok().body("Assault config has changed");
  }

  @PostMapping("/assaults/runtime/attack")
  public ResponseEntity attack() {
    runtimeScope.callChaosMonkey();
    return ResponseEntity.ok("Started runtime assaults");
  }

  @GetMapping("/assaults")
  public AssaultPropertiesUpdate getAssaultSettings() {
    return this.chaosMonkeySettings.getAssaultProperties().toDto();
  }

  @PostMapping("/enable")
  public ResponseEntity enableChaosMonkey() {
    this.chaosMonkeySettings.getChaosMonkeyProperties().setEnabled(true);
    return ResponseEntity.ok().body("Chaos Monkey is enabled");
  }

  @PostMapping("/disable")
  public ResponseEntity disableChaosMonkey() {
    this.chaosMonkeySettings.getChaosMonkeyProperties().setEnabled(false);
    return ResponseEntity.ok().body("Chaos Monkey is disabled");
  }

  @GetMapping
  public ChaosMonkeySettingsDto status() {
    return this.chaosMonkeySettings.toDto();
  }

  @GetMapping("/status")
  public ResponseEntity getStatus() {
    if (this.chaosMonkeySettings.getChaosMonkeyProperties().isEnabled()) {
      return ResponseEntity.status(HttpStatus.OK).body("Ready to be evil!");
    } else {
      return ResponseEntity.status(HttpStatus.SERVICE_UNAVAILABLE).body("You switched me off!");
    }
  }

  @PostMapping("/watchers")
  public ResponseEntity updateWatcherProperties(
      @RequestBody @Validated WatcherPropertiesUpdate watcherProperties) {
    watcherProperties.applyTo(chaosMonkeySettings.getWatcherProperties());
    scheduler.reloadConfig();

    return ResponseEntity.ok().body("Watcher config has changed");
  }

  @GetMapping("/watchers")
  public WatcherProperties getWatcherSettings() {
    return this.chaosMonkeySettings.getWatcherProperties();
  }
}