| /* |
| * 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 WARRANTIESOR 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.aries.containers.docker.local.impl; |
| |
| import java.util.List; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| import org.apache.aries.containers.Service; |
| import org.apache.aries.containers.ServiceConfig; |
| |
| public class ServiceImpl implements Service { |
| private final ServiceConfig config; |
| private final List<ContainerImpl> containers; |
| private final LocalDockerContainerFactory factory; |
| |
| public ServiceImpl(ServiceConfig config, |
| LocalDockerContainerFactory factory, |
| List<ContainerImpl> containers) { |
| this.config = config; |
| this.factory = factory; |
| this.containers = new CopyOnWriteArrayList<>(containers); |
| } |
| |
| @Override |
| public void destroy() { |
| setInstanceCount(0); |
| } |
| |
| @Override |
| public int getActualInstanceCount() { |
| return factory.getDockerIDs(config).size(); |
| // TODO test |
| } |
| |
| @Override |
| public void setInstanceCount(int count) { |
| try { |
| int curSize = containers.size(); |
| if (count < curSize) { |
| for (int i=0 ; i < curSize - count; i++) { |
| killContainer(containers.remove(0)); |
| } |
| } else { |
| // TODO implement scaling up |
| } |
| } catch (Exception e) { |
| LocalDockerContainerFactory.LOG.error("Problem changing instance count of service {} to {}", |
| config.getServiceName(), count, e); |
| } |
| } |
| |
| private void killContainer(ContainerImpl container) throws Exception { |
| factory.destroyDockerContainer(container.getID(), true); |
| } |
| |
| public void killAndReplaceContainer(ContainerImpl containerImpl) { |
| // TODO implement |
| } |
| } |