71 lines
2.4 KiB
Java
71 lines
2.4 KiB
Java
/*
|
|
* The MIT License
|
|
* Copyright © 2014-2019 Ilkka Seppälä
|
|
*
|
|
* 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 com.iluwatar.circuitbreaker;
|
|
|
|
/**
|
|
* The service class which makes local and remote calls Uses {@link DefaultCircuitBreaker} object to
|
|
* ensure remote calls don't use up resources.
|
|
*/
|
|
public class MonitoringService {
|
|
|
|
private final CircuitBreaker delayedService;
|
|
|
|
private final CircuitBreaker quickService;
|
|
|
|
public MonitoringService(CircuitBreaker delayedService, CircuitBreaker quickService) {
|
|
this.delayedService = delayedService;
|
|
this.quickService = quickService;
|
|
}
|
|
|
|
//Assumption: Local service won't fail, no need to wrap it in a circuit breaker logic
|
|
public String localResourceResponse() {
|
|
return "Local Service is working";
|
|
}
|
|
|
|
/**
|
|
* Fetch response from the delayed service (with some simulated startup time).
|
|
*
|
|
* @return response string
|
|
*/
|
|
public String delayedServiceResponse() {
|
|
try {
|
|
return this.delayedService.attemptRequest();
|
|
} catch (RemoteServiceException e) {
|
|
return e.getMessage();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fetches response from a healthy service without any failure.
|
|
*
|
|
* @return response string
|
|
*/
|
|
public String quickServiceResponse() {
|
|
try {
|
|
return this.quickService.attemptRequest();
|
|
} catch (RemoteServiceException e) {
|
|
return e.getMessage();
|
|
}
|
|
}
|
|
} |