| /* |
| * 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.sling.discovery.base.its.setup.mock; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * General purpose delay object that can be passed around and |
| * plugged in various places identified by an 'operationDescriptor' |
| * which can be used to inject delays at runtime |
| * @author egli |
| * |
| */ |
| public class ArtificialDelay { |
| |
| private final Logger logger = LoggerFactory.getLogger(this.getClass()); |
| |
| private final Map<String,Long> operationsMap = new ConcurrentHashMap<String, Long>(); |
| |
| private String debugName; |
| |
| private final Object syncObj = new Object(); |
| |
| public void setDebugName(String debugName) { |
| this.debugName = debugName; |
| } |
| |
| public void setDelay(String operationDescriptor, long delayMillis) { |
| operationsMap.put(operationDescriptor, delayMillis); |
| synchronized(syncObj) { |
| syncObj.notifyAll(); |
| } |
| } |
| |
| public void delay(String operationDescriptor) { |
| Long delayMillis = operationsMap.get(operationDescriptor); |
| if (delayMillis == null) { |
| return; |
| } |
| if (delayMillis <= 0) { |
| return; |
| } |
| logger.info("delay: delaying ["+debugName+"] '"+operationDescriptor+"' for "+delayMillis+"ms..."); |
| final long start = System.currentTimeMillis(); |
| synchronized(syncObj) { |
| while(true) { |
| delayMillis = operationsMap.get(operationDescriptor); |
| if (delayMillis == null) { |
| logger.info("delay: delaying ["+debugName+"]'"+operationDescriptor+"' for "+delayMillis+"ms done."); |
| return; |
| } |
| if (delayMillis <= 0) { |
| logger.info("delay: delaying ["+debugName+"]'"+operationDescriptor+"' for "+delayMillis+"ms done."); |
| return; |
| } |
| final long end = start + delayMillis; |
| long remaining = end - System.currentTimeMillis(); |
| if (remaining <= 0) { |
| break; |
| } |
| try { |
| logger.info("delay: delaying ["+debugName+"] '"+operationDescriptor+"' now for "+remaining+"ms..."); |
| syncObj.wait(remaining); |
| } catch (InterruptedException e) { |
| logger.error("delay: got interrupted: "+e, e); |
| } |
| } |
| } |
| logger.info("delay: delaying ["+debugName+"]'"+operationDescriptor+"' for "+delayMillis+"ms done."); |
| } |
| |
| } |