| /* |
| * 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.jclouds.chef.functions; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.collect.Sets.newHashSet; |
| |
| import java.util.Set; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.chef.ChefApi; |
| import org.jclouds.chef.domain.Client; |
| |
| import com.google.common.base.Function; |
| |
| /** |
| * |
| * Generates a client relevant for a particular group |
| */ |
| @Singleton |
| public class ClientForGroup implements Function<String, Client> { |
| private final ChefApi chefApi; |
| |
| @Inject |
| public ClientForGroup(ChefApi chefApi) { |
| this.chefApi = checkNotNull(chefApi, "chefApi"); |
| } |
| |
| @Override |
| public Client apply(String from) { |
| String clientName = findNextClientName(chefApi.listClients(), from + "-client-%02d"); |
| Client client = chefApi.createClient(clientName); |
| // response from create only includes the key |
| return Client.builder() // |
| .clientname(clientName) // |
| .name(clientName) // |
| .isValidator(false) // |
| .privateKey(client.getPrivateKey()) // |
| .build(); |
| } |
| |
| private static String findNextClientName(Set<String> clients, String pattern) { |
| String clientName; |
| Set<String> names = newHashSet(clients); |
| int index = 0; |
| while (true) { |
| clientName = String.format(pattern, index++); |
| if (!names.contains(clientName)) |
| break; |
| } |
| return clientName; |
| } |
| } |