| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.servicecomb.injection; |
| |
| import org.apache.servicecomb.governance.policy.FaultInjectionPolicy; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class DelayFault extends AbstractFault { |
| private static final Logger LOGGER = LoggerFactory.getLogger(DelayFault.class); |
| |
| public DelayFault(String key, FaultInjectionPolicy policy) { |
| super(key, policy); |
| } |
| |
| @Override |
| public int getOrder() { |
| return 100; |
| } |
| |
| @Override |
| public void injectFault(FaultParam faultParam) { |
| if (!shouldDelay(faultParam, policy)) { |
| return; |
| } |
| |
| LOGGER.debug("Fault injection: delay is added for the request by fault inject handler"); |
| long delay = policy.getDelayTimeToMillis(); |
| if (delay == FaultInjectionConst.FAULT_INJECTION_DEFAULT_VALUE) { |
| LOGGER.debug("Fault injection: delay is not configured"); |
| return; |
| } |
| |
| executeDelay(faultParam, delay); |
| } |
| |
| private void executeDelay(FaultParam faultParam, long delay) { |
| Sleepable sleepable = faultParam.getSleepable(); |
| if (sleepable != null) { |
| sleepable.sleep(delay); |
| } |
| } |
| |
| private boolean shouldDelay(FaultParam param, FaultInjectionPolicy policy) { |
| int delayPercent = policy.getPercentage(); |
| if (delayPercent == FaultInjectionConst.FAULT_INJECTION_DEFAULT_VALUE) { |
| LOGGER.debug("Fault injection: delay percentage is not configured"); |
| return false; |
| } |
| // check fault delay condition. |
| return FaultInjectionUtil.isFaultNeedToInject(param.getReqCount(), delayPercent); |
| } |
| |
| @Override |
| public String getName() { |
| return FaultInjectionConst.TYPE_DELAY; |
| } |
| } |