| /* |
| * 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.knox.gateway.shell; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.ServiceLoader; |
| |
| public class Credentials { |
| List<CredentialCollector> collectors = new ArrayList<>(); |
| |
| public Credentials add(String collectorType, String prompt, String name) |
| throws CredentialCollectionException { |
| CredentialCollector collector = loadCredentialCollector(collectorType); |
| if (collector == null) { |
| throw new CredentialCollectionException("Invalid Collector Requested. Type: " + collectorType + " Name: " + name); |
| } |
| collector.setPrompt(prompt); |
| collector.setName(name); |
| collectors.add(collector); |
| |
| return this; |
| } |
| |
| public Credentials add(CredentialCollector collector, String prompt, String name) |
| throws CredentialCollectionException { |
| if (collector == null) { |
| throw new CredentialCollectionException("Null CredentialCollector cannot be added."); |
| } |
| collector.setPrompt(prompt); |
| collector.setName(name); |
| collectors.add(collector); |
| |
| return this; |
| } |
| |
| public void collect() throws CredentialCollectionException { |
| for (CredentialCollector collector : collectors) { |
| collector.collect(); |
| } |
| } |
| |
| public CredentialCollector get(String name) { |
| for (CredentialCollector collector : collectors) { |
| if (collector.name().equals(name)) { |
| return collector; |
| } |
| } |
| return null; |
| } |
| |
| private CredentialCollector loadCredentialCollector(String type) { |
| ServiceLoader<CredentialCollector> collectorsList = ServiceLoader.load(CredentialCollector.class); |
| for (CredentialCollector collector : collectorsList) { |
| if (collector.type().equals(type)) { |
| return collector; |
| } |
| } |
| return null; |
| } |
| } |